JPS58158487A - Drying facility for damp material - Google Patents
Drying facility for damp materialInfo
- Publication number
- JPS58158487A JPS58158487A JP4327182A JP4327182A JPS58158487A JP S58158487 A JPS58158487 A JP S58158487A JP 4327182 A JP4327182 A JP 4327182A JP 4327182 A JP4327182 A JP 4327182A JP S58158487 A JPS58158487 A JP S58158487A
- Authority
- JP
- Japan
- Prior art keywords
- moisture value
- fine powder
- drying
- hot air
- dry
- 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
Landscapes
- Drying Of Solid Materials (AREA)
- Coke Industry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、乾燥室内のスクリーン上へ１１Ｍ材料を供給
すると共に、前記スクリーン下方から乾燥用熱風を送シ
、湿潤材料を流動化させなカニら乾燥させ、そして乾燥
材料を乾燥室内から取出すと共に、排風を集塵機に流し
て微粉材料を回収する湿潤材料乾燥設備に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention supplies 11M material onto a screen in a drying chamber, blows drying hot air from below the screen, dries the wet material without fluidizing it, and then removes the dry material. This relates to wet material drying equipment that takes out the powder from a drying chamber and collects the fine powder by passing the exhaust air through a dust collector.
かかる従来の湿潤材料乾燥設備において水分値制御は、
乾燥機出口において排ガス温度を検知し、設定値と比較
して熱風発生炉の燃料供Ｗ″量を調節し、熱風温度を変
えることによシ行なっている。Moisture value control in such conventional wet material drying equipment is
This is done by detecting the exhaust gas temperature at the dryer outlet, comparing it with a set value, adjusting the amount of fuel supplied to the hot air generating furnace, and changing the hot air temperature.
この場合、水分設定値は乾燥機の達成目標水分値に見合
った排ガス温度が採用される。例えば石炭乾燥において
、コークス炉に投入される粉炭は、製造されたコークス
の品質を均一にするために、また粉塵対策として一定水
分の粉炭がよい。ところが乾燥機排出コンベアよシ得ら
れる石炭粒Ｃ以下、大塊と呼ぶ）と−次集塵機で回収さ
れる石炭粒（以下、回収微粉と呼ぶ）とでは、次表に示
すように水分値に大きな瀘いが見られ、また時間経過（
しＩ）によっても異なる。In this case, the exhaust gas temperature corresponding to the target moisture value of the dryer is adopted as the moisture setting value. For example, in coal drying, the pulverized coal fed into the coke oven should preferably have a constant moisture content in order to make the quality of the produced coke uniform and as a countermeasure against dust. However, as shown in the following table, the moisture content of the coal particles C obtained by the dryer discharge conveyor (hereinafter referred to as large lumps) and the coal particles recovered by the second dust collector (hereinafter referred to as recovered fine powder) is large. A thinning can be seen, and the passage of time (
It also depends on I).
したがって、処理材料の粒度構成によっては、最終的に
排出コンベア上で得られる乾燥石突の水分値は始めの設
定値と異な９、当初の目標値が達成できない。Therefore, depending on the particle size structure of the treated material, the moisture value of the dried stone finally obtained on the discharge conveyor may be different from the initially set value9, making it impossible to achieve the initial target value.
本発明は、乾燥材料輸送装置と微粉材料輸送装置に夫々
重量検出器を設けると共に、取出された乾燥材料ならび
に回収された微粉材料の水分値を検出する水分値検出器
を夫々設け、これら重量検出器ならびに水分値検出器か
らの信号を比較して平均水分値を算出する演算器を設け
、この演算器からの平均水分！信号を、乾燥用熱風の温
度設定値を制御する制御器に与えるように構成した鮮潤
材料乾燥設備を提供するものであシ、かかる構成による
と、温調材料の粒度構成により大塊と回収微粉との蓋が
大きく変化する場合にも、目標とす以下、本発明の一実
施例を図面に基づいて説明する。（１）は乾燥機で、そ
の下端には熱風発生炉（２）が連通し、さらに熱風発生
炉（２）には燃料供給管（３）と−次空気供給管（４）
と二次空気供給管（５）とが連通している。前記乾燥機
（１）内には乾燥室が形成され、この乾燥室内のスクリ
ーン上へ粉炭（湿潤材料）（６） カ原料ｆ −シヒン
（７）から供給される。供給された粉炭（６）は、前記
スクリーン上を一端から他端へ流動して行くのであるが
、その流動中において熱風発生炉（２）からの乾燥用熱
風が７スクリーン下方から送シ込まれ、以って粉炭は乾
燥される。乾燥機（１）の他端からは乾燥された大塊（
乾燥材料）（８）が取出され、そして第１排出コンベア
（乾燥材料輸送装置）（９）に渡される。前記乾燥機（
１）の上部は一次集塵機αＱに連通し、以って乾燥室か
らの排風を一次集塵！ＱＯに流して微粉を回収し得るよ
うにしている。−次集塵機αｑで回収された微粉Ｑυは
第 ゛２排出コンベア（微粉材料輸送装置）（２）に
取出され、そして第１排出コンベア（９）に合流される
。−次集塵機αＱからの排風は二次集塵機（至）に入り
、そし７て排風機に至る。The present invention provides a weight detector for each of the dry material transport device and the fine powder material transport device, and also provides a moisture value detector for detecting the moisture value of the taken out dry material and the collected fine powder material, and detects the weight of these devices. A computing unit is provided to calculate the average moisture value by comparing the signals from the moisture detector and the moisture value detector, and the average moisture value from this computing unit! The purpose of the present invention is to provide fresh material drying equipment configured to give a signal to a controller that controls the temperature setting value of hot air for drying. An embodiment of the present invention will be described below with reference to the drawings. (1) is a dryer, and a hot air generating furnace (2) is connected to the lower end of the dryer, and a fuel supply pipe (3) and a secondary air supply pipe (4) are connected to the hot air generating furnace (2).
and the secondary air supply pipe (5) are in communication. A drying chamber is formed in the dryer (1), and pulverized coal (wet material) (6) is supplied from coal raw material f-shihin (7) onto a screen in this drying chamber. The supplied powdered coal (6) flows from one end to the other on the screen, and during the flow, drying hot air from the hot air generator (2) is blown in from below the screen. , thus the powdered coal is dried. From the other end of the dryer (1), the dried mass (
Dry material) (8) is removed and passed to a first discharge conveyor (dry material transport device) (9). The dryer (
The upper part of 1) is connected to the primary dust collector αQ, which collects the exhaust air from the drying room as a primary dust collector! The fine powder can be recovered by flowing it into the QO. - The fine powder Qυ collected by the second dust collector αq is taken out to the second discharge conveyor (fine powder material transport device) (2), and then merged with the first discharge conveyor (9). - The exhaust air from the secondary dust collector αQ enters the secondary dust collector (to) and then reaches the exhaust fan.
前記両排出コンベア（９）（２）には夫々重量検出器０
４（ト）が設けられ、その検出信号（ｆ、）（Ｙ２）が
演算器Ｑ・にインプットされる。また大塊（８）ならび
に微粉０υからサンプリング（８ａＸ１１ａ）が取出さ
れ、これらは水分値検出器Ｑ７）（至）に夫々供給され
る。これら水分値検出器Ｑ７）Ｍからの検出信号（Ｘ、
）（Ｘ２）係も演算器α呻にインプットされる。演算器
Ｑ時においてはインプットされた信号に基づいて平均水
分値を演算する。すなわち、ここで湿式ペースを例にと
ると、となる。これによシ全排出物の平均水分値を算出
する。この値を設備の目標設定値と比較し、そして制御
器αりへ平均水分値信号（Ｚ）を与える。一方制御器α
りでは熱風発生炉（２）の排ガス温度が一定の設定値に
なるように、燃料供給管（３）中に設けた弁（ホ）を信
号囚で制御し、以って熱風発生炉（２）への燃料供給量
をコントロールしている。すなわち制御器部へ演算器（
至）より送られた信号（Ｚ）により排ガス温度設定値を
コントロールする。さらに詳しく述べれば、制御器α侍
における初めの設定値を（Ｓ）としたとき、〔Ｓ←２〕
ならば新たに設定値を（Ｚ）に変更するとともに、排ガ
ス温度検出器（２）より検出した温度σ）を（Ｚ）と比
較し、（Ｔ−Ｚ＞０）ならば弁（７）を絞るための信号
囚が与えられ、（Ｔ−Ｚ＜Ｏ）ならば弁部を開けるため
の信号囚が与えられる。Both discharge conveyors (9) and (2) are equipped with weight detectors, respectively.
4 (g) is provided, and its detection signal (f, ) (Y2) is input to the arithmetic unit Q. Further, samplings (8aX11a) are taken out from the large lump (8) and the fine powder 0υ, and these are supplied to the moisture value detector Q7) (to), respectively. Detection signals (X,
)(X2) is also input to the arithmetic unit α. The computing unit Q computes an average moisture value based on the input signal. That is, if we take wet pace as an example here, it will be as follows. From this, the average moisture value of all discharged material is calculated. This value is compared to the equipment target setting and provides an average moisture value signal (Z) to the controller α. On the other hand, controller α
In order to keep the exhaust gas temperature of the hot air generating furnace (2) at a constant value, the valve (E) installed in the fuel supply pipe (3) is controlled by a signal controller. ) controls the amount of fuel supplied to the In other words, the arithmetic unit (
The exhaust gas temperature set value is controlled by the signal (Z) sent from (to). To explain in more detail, when the initial set value in the controller α is (S), [S←2]
If so, change the set value to (Z), compare the temperature σ) detected by the exhaust gas temperature detector (2) with (Z), and if (T-Z>0), close the valve (7). A signal for throttling is given, and if (T-Z<O), a signal for opening the valve is given.
本発明は次のような実施例も可能である。The following embodiments of the present invention are also possible.
０ 大塊（８）および微粉（ロ）の水分値を連続的に検
知できる検出器（例えば中性子水分計）を排出シュート
に夫々設置して、正確な水分値を得る。この水分値と重
量検出器で得られる信号を演算器α→へ入れる。0 A detector (for example, a neutron moisture meter) capable of continuously detecting the moisture value of the large lump (8) and the fine powder (b) is installed in each discharge chute to obtain an accurate moisture value. This moisture value and the signal obtained from the weight detector are input to the calculator α→.
０ 熱源として熱風発生炉を設けず、温度一定の排ガス
などを利用する場合は、排ガスと二次空貿取入口にダン
パを設け、両ダンパの開閉度を調節して、風量は一定で
温度が変化するような制御を行なう。0 When using exhaust gas at a constant temperature without installing a hot air generator as a heat source, install a damper at the exhaust gas and secondary air intake, and adjust the degree of opening and closing of both dampers to maintain a constant air volume and temperature. Performs variable control.
以上述べた本発明によると、Ｍｉｌｌｉ材料の粒度構成
により大塊と回収微粉との量が大きく変化する場合にも
、あるいは湿潤材料の乾燥機入口での水分値が変更する
場合にも、目標とする水分値を精度よく達成できる。According to the present invention described above, even when the amount of large lumps and recovered fine powder changes greatly depending on the particle size structure of the Milli material, or when the moisture value of the wet material at the dryer entrance changes, the target can be achieved. The desired moisture value can be achieved with high precision.
図面は本発明の一実施例を示し、第１図は説明図、第２
図はフローチャートである。
（１）・・・乾燥機、（２）・・・熱風発生炉、（３）
・・・燃料供給管、（６）・・・粉炭（湿潤材料） 、
（８）・・・大塊（乾燥材料）、（９）・・・第１排出
コンベア（乾燥材料輸送装置）、ａ呻・・・−次集塵機
、０］）・・・微粉、（２）・・・第２排出コンベア（
微粉材料輸送装置）、０４（１→・・・重量検出器、ａ
叶・・・演算器、αη（至）・・・水分値検出器、（１
・・・制御器、（ホ）・・・弁、（２）・・・排ガス温
度検出器
代理人 森 本 義 弘The drawings show one embodiment of the present invention, with FIG. 1 being an explanatory diagram and FIG.
The figure is a flowchart. (1)...Dryer, (2)...Hot air generator, (3)
... Fuel supply pipe, (6) ... Powdered coal (wet material),
(8)...Large lump (dry material), (9)...First discharge conveyor (dry material transport device), a groan...-Next dust collector, 0])...Fine powder, (2) ...Second discharge conveyor (
Fine powder material transport device), 04 (1→... weight detector, a
Kano... Arithmetic unit, αη (to)... Moisture value detector, (1
...controller, (e) ...valve, (2) ...exhaust gas temperature detector agent Yoshihiro Morimoto
Claims (1)
に、前記スクリーン下方から乾燥用熱風を送シ、湿潤材
料を流動化させながら乾燥させ、そして乾燥材料を乾燥
室内から取出すと共に、排風を集塵機に流して微粉材料
を回収するＩｌｉｌ材調乾燥設備において、乾燥材料輸
送装置と微粉材料輸送装置に夫々重量検出器を設けると
共に、収出された乾燥材料ならびに回収された微粉材料
の水分値を検出する水分値検出器を夫々設け、これら重
量検出器ならびに水分値検出器からの信号を比較して平
均水分値を算出する演算器を設け、
この演算器からの平均水分値信号を、乾燥用熱風の温啓
設定値を制御する制御器に与えるように構成したことを
特徴とする湿潤材料乾燥設備。1. Supply the daytime material onto the screen in the drying chamber, blow drying hot air from below the screen, dry the wet material while fluidizing it, take out the dry material from the drying chamber, and blow the exhaust air. In the Ilil material drying equipment that collects fine powder material by flowing it into a dust collector, a weight detector is installed in each of the dry material transportation device and the fine powder material transportation device, and the moisture value of the collected dry material and the recovered fine powder material is measured. A moisture value detector is provided for each detection, and a calculator is provided for comparing signals from these weight detectors and moisture value detectors to calculate an average moisture value.
A wet material drying equipment characterized in that the average moisture value signal from the calculator is configured to be applied to a controller that controls a heating setting value of drying hot air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4327182A JPS58158487A (en) | 1982-03-17 | 1982-03-17 | Drying facility for damp material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4327182A JPS58158487A (en) | 1982-03-17 | 1982-03-17 | Drying facility for damp material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58158487A true JPS58158487A (en) | 1983-09-20 |
| JPS6138984B2 JPS6138984B2 (en) | 1986-09-01 |
Family
ID=12659153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4327182A Granted JPS58158487A (en) | 1982-03-17 | 1982-03-17 | Drying facility for damp material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58158487A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63291991A (en) * | 1987-05-26 | 1988-11-29 | Mitsubishi Heavy Ind Ltd | Drying of coal |
| JPH03131682A (en) * | 1989-10-16 | 1991-06-05 | Nakayama Steel Works Ltd | Method for controlling moisture of wet coal in charging coal moisture-controlling device of coke oven |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0545734Y2 (en) * | 1986-06-30 | 1993-11-25 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5349366A (en) * | 1976-10-18 | 1978-05-04 | Nippon Steel Corp | Automatic moisture controller for material coal fed to coke oven |
-
1982
- 1982-03-17 JP JP4327182A patent/JPS58158487A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5349366A (en) * | 1976-10-18 | 1978-05-04 | Nippon Steel Corp | Automatic moisture controller for material coal fed to coke oven |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63291991A (en) * | 1987-05-26 | 1988-11-29 | Mitsubishi Heavy Ind Ltd | Drying of coal |
| JPH03131682A (en) * | 1989-10-16 | 1991-06-05 | Nakayama Steel Works Ltd | Method for controlling moisture of wet coal in charging coal moisture-controlling device of coke oven |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6138984B2 (en) | 1986-09-01 |
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