JPS59205515A - Modifying device of refuse - Google Patents

Abstract

PURPOSE:To control the quality of refuse into uniform condition so as to realize the stable burning of the refuse even when the scattering of the quality of refuse is strikingly great by a method wherein the required amount of water is supplied to the refuse when the calorific value of the refuse obtained by a heat value detection means exceeds a certain fixed value. CONSTITUTION:The specific gravity of refuse is calculated by measuring the weight of the refuse with a truck scale and the load cell of a crane. Next, the weight percentages of the combustible content and of the water content of the refuse are calculated in order to obtain the calorific value of the refuse. When the calculated calorific value of the refuse exceeds the optimum incineration condition of 1,500-1,600kcal/kg, the control valve 4 of a feed water pipe 1 is opened in order to supply the required amount of water to the refuse 6 by jetting. Because of being composed of a fully automatically controlled heat value detection means to detect the calorific value of the refuse to be incinerated and a water feeding means to supply the required amount of water to the refuse when the resultant detected value exceeds the certain fixed value, the modifying device can stably burn the refuse even when the scattering of the quality of refuse is strikingly great and no fear of not uniform combustion such as pre-combustion, non- combustion or the like is developed at all.

Description

【発明の詳細な説明】 この発明は焼ｆ、ｌｌ場におけるごみの調質装置に関づ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a waste refining device in an incineration plant.

近年、ごみ焼却場に搬入されるごみは、プラスチック類
の増加により高熱量化する傾向にあるが、依然として圏
外などの低熱量物の混入もあり、こみ質のばらつきが著
しい。そのため先撚えや未燃焼などの不均一な燃焼が生
じ、燃焼を安定的に維持することが困難であった。イこ
で従来、燃焼の安定化のために、こみピッ１−に貯えた
ごみをこみクレーンによって攪拌していたが、この方式
ではごみの混合に限界があり、こみ質のばらつきが著し
い場合には、やはり安定的な燃焼状態の維持は困難であ
り、近年需要が増大している焼却余熱を定常的に利用す
ることが不可能であった。In recent years, garbage brought into waste incineration plants has tended to have a high calorific value due to an increase in plastics, but there is still some low calorific value mixed in from outside the area, and the quality of the garbage varies significantly. As a result, uneven combustion such as twisting and unburning occurs, making it difficult to maintain stable combustion. Conventionally, in order to stabilize combustion, the garbage stored in the garbage pit 1- was stirred by a garbage crane, but this method has a limit to the mixing of garbage, and when there are significant variations in garbage quality, However, it is still difficult to maintain a stable combustion state, and it has been impossible to regularly utilize the residual heat from incineration, which has been in increasing demand in recent years.

この発明は、上記のような実情に鑑みてなさ−れたもの
で、こみ質のばらつきが著しい場合であっても安定的な
燃焼ができるように、こみ質を自動的に均一に調整する
ごみ調質装置を提供することを目的とする。This invention was made in view of the above-mentioned circumstances, and it is a waste that automatically adjusts the quality of waste to make it uniform so that stable combustion can be achieved even when the quality of waste varies significantly. The purpose is to provide a refining device.

この発明によるごみの調質装置は、焼却ヅべきごみの発
熱量を検出する全自動制御による熱量検出手段と、得ら
れた検出値が一定値を越えた場合にごみに所要量の水を
供給づる給水手段とよりなるものである。The waste refining device according to the present invention includes a fully automatically controlled heat detection means for detecting the calorific value of waste to be incinerated, and supplies the required amount of water to the waste when the detected value exceeds a certain value. It consists of a water supply means.

発熱量検出手段の代表例どしては、ごみ収集車で搬入さ
れるごみの比重を測定し、得られた値から所定の関係式
を介して発熱量を算出−りる手段が挙げられる。その他
の手段としては、ボイラー発熱量、水噴射ｍなどを指標
とした相関や、ノＪス分析計などにより発熱量を求める
手段がある。A typical example of the calorific value detection means is a means that measures the specific gravity of garbage brought in by a garbage truck and calculates the calorific value from the obtained value using a predetermined relational expression. Other means include correlation using the boiler calorific value, water injection m, etc. as an index, and means to determine the calorific value using a gas analyzer.

給水手段は、発熱■検出手段によって得られた検出値が
一定値を越えた場合に給水管の制御弁を聞く弁制御機構
を主体とするものである。The water supply means is mainly composed of a valve control mechanism that listens to the control valve of the water supply pipe when the detected value obtained by the heat generation detection means exceeds a certain value.

給水時間および給水機は、タイマ、フローメータなどに
より所要値に設定される。また給水用の水は清水のみな
らずプラント内で発生した汚水でもよい。Water supply time and water supply machine are set to required values using a timer, flow meter, etc. Moreover, the water for water supply may be not only fresh water but also sewage generated within the plant.

つき゛にこの発明によるごみ調質装置の操作について説
明覆る。The operation of the waste treatment apparatus according to the present invention will now be explained.

ごみのｆｆ［をトラックスケールｄ５　Ｊ−ひこみクレ
ーンの荷重計で測定して、比重をＷ　ｍ−＝ｉる。The ff[ of the garbage is measured with a truck scale D5 J-Hikomi crane load meter, and the specific gravity is determined as W m-=i.

つぎの２つの関係式が成立する。The following two relational expressions hold true.

ＸＣ−）−ｙｗ＋　ｚａ−ごみの比重　　　・＝　（１
）ｃ＋ｗ＋ａ＝１　　　　　　　　・・・（２）Ｘ　；
可燃分の比重 ｙ：水の比重 Ｚ　：灰分の比重 Ｃ：可燃分の重量％ Ｗ：水の重量％ ａ：灰分の重量％ 上記式（１）＜２＞において、×、ｙ、７およびａは、
各都市ごみの条件により決まった値または測定値である
ので、これら関係式（１）（２）から未知数ＣおＪ：び
〜Ｖを算出することができる。XC-)-yw+za-specific gravity of garbage ・= (1
)c+w+a=1...(2)X;
Specific gravity of combustible content y: Specific gravity of water Z: Specific gravity of ash content C: Weight % of combustible content W: Weight % of water a: Weight % of ash content In the above formula (1) <2>, x, y, 7 and a teeth,
Since these values are determined or measured values depending on the conditions of each municipal waste, the unknowns C and V can be calculated from these relational expressions (1) and (2).

ところで、ごみの発熱ｆｆ１（＋−１１１）はつぎの式
により算出される。By the way, the heat generation ff1 (+-111) of the waste is calculated by the following formula.

ｔ−１ｕ　＝４５００ｃ　−６００＋ｖ−（３）そこで
この式（３）に先に求めたＣおよびＷの値を代入し、ご
みの発熱量を出す。そしてごみの発熱量が焼却最適条件
である１　５００へ・１６００　Ｋｃａｌ　／ｋ（］を
越えた場合に、給水管の制御弁が開かれて、ごみに所要
量の水が噴射供給される。制御弁の開閉操作は熱量検出
手段から弁に送られる制御信号によって自動的になし得
るが、手動で行なってももちろんよい。制御弁の開時間
はタイマによって設定される。t-1u = 4500c -600+v- (3) Then, the values of C and W obtained earlier are substituted into this equation (3) to calculate the calorific value of the waste. When the calorific value of the waste exceeds the optimal incineration condition of 1500 to 1600 Kcal/k (), the control valve of the water supply pipe is opened and the required amount of water is injected and supplied to the waste. Control The opening/closing operation of the valve can be performed automatically by a control signal sent to the valve from the heat quantity detection means, but it can also be performed manually.The opening time of the control valve is set by a timer.

水の供給はたとえばつぎのようになされる。Water is supplied, for example, as follows.

１）第１図に示すように、給水管（１）をごみビット（
２）のごみ投入扉部に配し、その先端に噴射ノズル（３
）を取付け、給水管（１〉に設けた制御弁（４）の制御
によっでごみビット（５）内のごみ（６）に水を噴射供
給する。1) As shown in Figure 1, connect the water supply pipe (1) with a garbage bit (
2), and a spray nozzle (3
) is installed, and water is injected and supplied to the waste (6) in the waste bit (5) under the control of the control valve (4) provided in the water supply pipe (1>).

２）第２図に示すように、給水管（２１）をこみクレー
ン（２２）のバケツ１一部（２３）まで導いて、その先
端に噴萌ノズル（２４）を取（＝Ｉ　４）、やはり制御
弁（２５）の制御によってバケツ１一部？２３）内のこ
み（２６）に水を■ｎる。2) As shown in Fig. 2, lead the water supply pipe (21) to the bucket 1 part (23) of the crane (22), and attach the spray nozzle (24) to its tip (=I 4). After all, part of the bucket is controlled by the control valve (25)? 23) Pour water into the internal drain (26).

３）第３図に示すように、給水管＜３１）を焼却炉のご
み投入ホッパ（３２）に配し、その先端に噴射ノズル（
３３）を取付け、やはり制御弁（３４）の制御によって
ホッパ（３２）内の投入ごみに水を噴射供給する。3) As shown in Figure 3, the water supply pipe <31) is arranged in the waste input hopper (32) of the incinerator, and the injection nozzle (
33) is installed, and water is injected and supplied to the input garbage in the hopper (32) under the control of the control valve (34).

以上のとおりで、この発明によるごみ調質装置は、焼却
すべきごみの発熱量を検出する全自動制御による熱量検
出手段と、得られた検出値が一定値を越えた場合にごみ
に所要量の水を供給する給水手段とよりなるので、こみ
質のばらつぎが著しい場合であっても燃焼を安定的に行
なうことができ、したがって先撚えや未燃焼などの不均
一な燃焼を生じるおそれが全くない。As described above, the waste tempering device according to the present invention includes a fully automatically controlled heat detection means for detecting the heat value of the waste to be incinerated, and when the detected value exceeds a certain value, the waste is heated to the required amount. Since the combustion method consists of a water supply means that supplies water, stable combustion can be performed even when there is significant dispersion of waste, and there is a risk of uneven combustion such as twisting or unburning. There is no

また上記熱量検出手段によって、焼却場に搬入された未
燃焼ごみの発熱量のみならず、焼却中のごみの発熱量も
検出することができる。Moreover, the calorific value detection means can detect not only the calorific value of the unburned waste brought into the incinerator, but also the calorific value of the garbage being incinerated.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図、第２図および第３図は給水手段の例を示す焼却
場の垂直断面図である。 （１）　、（２１＞　　（３１）・・・給水管、（３）
（２７）（３３）・・・噴射ノズル、＜４）　　（２１
）　　（３４）・・・制御弁。FIGS. 1, 2, and 3 are vertical sectional views of an incinerator showing examples of water supply means. (1) , (21> (31)... water supply pipe, (3)
(27) (33)... Injection nozzle, <4) (21
) (34)...Control valve.

Claims (1)

【特許請求の範囲】[Claims] 焼却すべきごみの発熱量を検出する全自動制御による熱
量検出手段と、得られた検出値が一定値を越えた場合に
ごみに所要量の水を供給する給水手段とよりなるごみの
調質装置。Refinement of waste consisting of a fully automatically controlled heat detection means for detecting the calorific value of the waste to be incinerated, and a water supply means that supplies the required amount of water to the waste when the detected value exceeds a certain value. Device.