JP4625759B2 - Method and apparatus for automatically carrying treated sludge into a drying container - Google Patents

Method and apparatus for automatically carrying treated sludge into a drying container Download PDF

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JP4625759B2
JP4625759B2 JP2005359677A JP2005359677A JP4625759B2 JP 4625759 B2 JP4625759 B2 JP 4625759B2 JP 2005359677 A JP2005359677 A JP 2005359677A JP 2005359677 A JP2005359677 A JP 2005359677A JP 4625759 B2 JP4625759 B2 JP 4625759B2
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勝 宮本
洋一郎 宮本
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株式会社エムケイ
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Description

本発明は、天日乾燥による汚泥脱水乾燥装置に使用される乾燥用容器に、予め適宜脱水処理された処理汚泥を自動搬入する方法および装置に関する。   The present invention relates to a method and apparatus for automatically carrying treated sludge that has been appropriately dehydrated in advance into a drying container used in a sludge dewatering and drying apparatus using sun drying.

浄水場や下水処理場、あるいは河川、ため池などで発生する汚泥を天日乾燥させるための汚泥脱水乾燥装置として、先に同一出願人により、図５に示すように、複数の乾燥棚２１〜２４を上下に所定間隔を置いて数段階に重合配置し、乾燥棚２１〜２４の両端部に汚泥を収容する乾燥用容器（濾過容器）２０を各段の乾燥棚の高さまで昇降させるリフター装置２５Ｌ，２５Ｒを配置させて、汚泥入り乾燥用容器２０を下段の乾燥棚から上段の乾燥棚へリフター装置２５Ｌ，２５Ｒにより順次移動させながら天日乾燥できるようにしたものを提案した（例えば、特許文献１参照。）。   As a sludge dewatering and drying device for drying sludge generated in water purification plants, sewage treatment plants, rivers, ponds, and the like, a plurality of drying shelves 21 to 24, as shown in FIG. 25L is lifted and moved up and down to the height of the drying shelves of the respective stages by lifting and lowering the drying containers (filtering containers) 20 containing sludge at both ends of the drying shelves 21 to 24. , 25R are arranged, and the sludge-containing drying container 20 can be sun-dried while being sequentially moved from the lower drying shelf to the upper drying shelf by the lifter devices 25L, 25R (for example, Patent Documents). 1).

特許第３６１６７３８号公報Japanese Patent No. 3616738

しかるに、上記のような多段式の汚泥脱水乾燥装置では、複数の乾燥棚２１〜２４を上下に数段階に重合配置するため、大量汚泥を天日乾燥する場合にも敷地面積の有効利用を図れるが、水中から汲み上げられた含水率９５〜９７％の高含水汚泥を天日乾燥させるため、天日乾燥日数が長くかかるという問題がある。そこで、この多段式の汚泥脱水乾燥装置で天日乾燥させるに先立ち、脱水機械等で含水率９５〜９７％の高含水汚泥を８２〜８６％程度にまで脱水処理したうえで、この処理汚泥を乾燥用容器２０に搬入してこれを多段式の汚泥脱水乾燥装置に移すことにより天日乾燥させることが、天日乾燥日数を短縮化することができて望ましい。
しかしながら、そうした場合、問題となるのは、予め脱水した処理汚泥も乾燥用容器２０に山盛り状態に搬入させては該汚泥層内に空隙がほとんど無くなるため汚泥層中心部まで乾燥させる日数が多くかかり、所期の乾燥日数短縮目的を達成できないことになる。 However, in the multi-stage sludge dewatering and drying apparatus as described above, the plurality of drying shelves 21 to 24 are arranged in several stages up and down, so that the site area can be effectively used even when a large amount of sludge is sun-dried. However, in order to dry the high water content sludge pumped from the water with a water content of 95 to 97%, there is a problem that it takes a long time for the sun to dry. Therefore, prior to drying in the sun with this multistage sludge dewatering and drying device, dehydrated high water content sludge with a water content of 95-97% to about 82-86% with a dewatering machine, etc. It is desirable to carry out sun drying by carrying it in the drying container 20 and transferring it to a multi-stage sludge dehydration drying apparatus because the sun drying days can be shortened.
However, in such a case, the problem is that if the pretreated dewatered sludge is brought into the drying container 20 in a piled-up state, there are almost no voids in the sludge layer, so that it takes many days to dry to the center of the sludge layer. Therefore, the intended purpose of shortening the drying days cannot be achieved.

そこで本発明の目的は、予め適宜脱水した処理汚泥を乾燥用容器にできる限り空隙を多くもつよう収容できる乾燥用容器への処理汚泥の自動搬入方法および自動搬入装置を提供することにある。   Accordingly, an object of the present invention is to provide an automatic loading method and an automatic loading apparatus for treated sludge into a drying container that can accommodate treated sludge that has been appropriately dehydrated in advance so as to have as many voids as possible in the drying container.

本発明の請求項１に係る発明は、予め適宜脱水処理された処理汚泥を乾燥用容器に搬入する乾燥用容器への処理汚泥の自動搬入方法であって、処理汚泥が集積される集積ホッパーと、この集積ホッパーの底部前側に、横一列に所定間隔置きに並べて設けられた複数個の押出口と、各押出口から前記集積ホッパー内の処理汚泥を押出す複数本の押出作動部材を備えた押出機と、この押出機の下方位置から前方へ前記乾燥用容器を定ピッチずつ送る乾燥用容器搬送装置と、を備え、
前記乾燥用容器が前記押出機の下方位置にあるとき前記押出作動部材により前記集積ホッパー内の処理汚泥を前記押出口から押出して前記乾燥用容器に低くて小さい山状に落下収容し、次いで、前記乾燥用容器を前方へ定ピッチ送りした後、再度、前記押出作動部材により前記押出口から処理汚泥を押出して前記乾燥用容器内の処理汚泥山と並ぶよう落下収容し、爾後、前記押出作動部材による押出し作動と前記乾燥用容器の定ピッチ送りとを順次繰り返して行うことにより乾燥用容器内に多数の低くて小さい山状の処理汚泥山を適宜配列状態に収容することに特徴を有するものである。 The invention according to claim 1 of the present invention is an automatic loading method of treated sludge to a drying container for carrying treated sludge that has been appropriately dehydrated in advance into a drying container, and an integrated hopper in which the treated sludge is accumulated; In addition, on the front side of the bottom of the accumulation hopper, there are provided a plurality of extrusion ports arranged in a row at predetermined intervals, and a plurality of extrusion operation members for extruding the treated sludge in the accumulation hopper from each extrusion port. An extruder, and a drying container transport device that feeds the drying container from the lower position of the extruder forward by a fixed pitch,
When the drying container is at a lower position of the extruder, the processing member in the accumulation hopper is pushed out from the extrusion port by the extrusion operation member and dropped into the drying container in a small and small mountain shape, and then, After the drying container is fed forward at a constant pitch, the processed sludge is pushed out again from the extrusion port by the extrusion operation member and is dropped and accommodated so as to be aligned with the processed sludge pile in the drying container. It is characterized in that a large number of low and small mountain-shaped treated sludge piles are appropriately accommodated in the drying container by repeatedly performing the extrusion operation by the member and the constant pitch feed of the drying container. It is.

本発明の請求項２に係る発明は、予め適宜脱水処理された処理汚泥を乾燥用容器に搬入する乾燥用容器への処理汚泥の自動搬入装置であって、処理汚泥が集積される集積ホッパーと、この集積ホッパーの底部前側に、横一列に所定間隔置きに並べて設けられた複数個の押出口と、各押出口から前記集積ホッパー内の処理汚泥を押出す複数本の押出作動部材を備えた押出機と、この押出機の下方位置から前方へ前記乾燥用容器を定ピッチずつ送る乾燥用容器搬送装置と、を備えていることに特徴を有するものである。   The invention according to claim 2 of the present invention is an automatic carry-in device for processing sludge into a drying container that carries treated sludge that has been appropriately dehydrated in advance into a drying container, and an integrated hopper in which the processing sludge is accumulated; In addition, on the front side of the bottom of the accumulation hopper, there are provided a plurality of extrusion ports arranged in a row at predetermined intervals, and a plurality of extrusion operation members for extruding the treated sludge in the accumulation hopper from each extrusion port. The present invention is characterized in that it includes an extruder and a drying container transport device that feeds the drying container from the lower position to the front of the extruder by a constant pitch.

本発明の請求項１、２に記載の発明によれば、押出機の押出作動部材による押出し作動と乾燥用容器の定ピッチ送りとを順次繰り返して行うことにより乾燥用容器内に多数の低くて小さい山状の処理汚泥山が適宜配列状態に収容されるようにしてあるので、多数の略同一高さの低くて小さい山状の処理汚泥山どうし間に空隙が存在し、乾燥用容器内に収容された処理汚泥山群が空隙を多くもつことになり、少ない乾燥日数で効率良く天日乾燥することができる。   According to the invention described in claims 1 and 2 of the present invention, a number of low-increases in the drying container are obtained by sequentially repeating the extrusion operation by the extrusion operation member of the extruder and the constant pitch feed of the drying container. Since the small mountain-shaped treated sludge mountains are appropriately accommodated in an array state, there are voids between many small and small mountain-shaped treated sludge mountains having substantially the same height, and are in the drying container. The accommodated treated sludge mountain group has many voids, and can be efficiently sun-dried with a small number of drying days.

本発明の好適な実施形態を図面に基づき説明する。図１は本発明の方法を実施できる自動搬入装置の側面図、図２は図１中における矢印Ｃから見た集積ホッパーの一部正面図、図３（ａ），（ｂ）は図１の自動搬入装置の作動説明図、図４は乾燥用容器の分解斜視図である。   A preferred embodiment of the present invention will be described with reference to the drawings. 1 is a side view of an automatic loading apparatus capable of carrying out the method of the present invention, FIG. 2 is a partial front view of an integrated hopper as viewed from arrow C in FIG. 1, and FIGS. 3 (a) and 3 (b) are views of FIG. FIG. 4 is an exploded perspective view of the drying container.

本発明の乾燥用容器への処理汚泥の自動搬入方法は、例えば図４図に示すような乾燥用容器１を使用する。この乾燥用容器１は、砂の通過を阻止し且つ水及び空気の通過を許容する濾布２が上面開放状の多孔容器本体３の内部に敷設されてなる。多孔容器本体３は、細い鉄筋で大きい篭目を形成するよう四角形の浅い皿状に編組して作った籠や、透明なプラスチック材で多数の孔を有する四角形の浅い皿形状に成形したものなどからなる。濾過容器１の大きさや形状は、特に限定されないが、例えば、縦２ｍ、横３ｍ、高さ２０ｃｍ程度の大きさのものを使用する。   The method for automatically carrying treated sludge into the drying container of the present invention uses a drying container 1 as shown in FIG. 4, for example. The drying container 1 is constructed by laying a filter cloth 2 that prevents the passage of sand and allows the passage of water and air inside a porous container body 3 having an open top surface. The perforated container body 3 is made of a braid made by braiding into a square shallow dish so as to form a large mesh with thin rebars, or formed into a square shallow dish shape having many holes with a transparent plastic material, etc. Become. Although the magnitude | size and shape of the filtration container 1 are not specifically limited, For example, the thing of the magnitude | size of about 2 m long, 3 m wide, and height 20cm is used.

本発明に係る乾燥用容器への処理汚泥の自動搬入方法は、予め、スクリュープレス脱水機等で含水率８２〜８６％程度にまで脱水処理された処理汚泥を、次のような自動搬入装置を用いて乾燥用容器１に自動搬入する。
すなわち、本発明に係る乾燥用容器への処理汚泥の自動搬入装置は、図１、図２に示すように、処理汚泥４が集積される集積ホッパー５と、この集積ホッパー５の底部前側に、横一列に所定間隔置きに並べて設けられた複数個の丸型や菱形等の断面形状の押出口６と、各押出口６から集積ホッパー５内の処理汚泥４を押出す複数本の押出作動部材７が内蔵された押出機８と、この押出機８の下方位置から前方（矢印Ａ方向）へ乾燥用容器１を定ピッチずつ送るコンベヤ等による乾燥用容器搬送装置９とを備える。押出作動部材７は、例えば、各先端側が各押出口６に対応するよう配され且つ前後に往復運動自在なポンチ部材で構成する。 The method for automatically carrying in the treated sludge into the drying container according to the present invention includes the following automatic carrying device for the treated sludge dehydrated to a moisture content of about 82 to 86% by a screw press dehydrator or the like in advance. Used to automatically carry into the drying container 1.
That is, as shown in FIG. 1 and FIG. 2, the automatic carrying device for the treated sludge into the drying container according to the present invention has an integrated hopper 5 in which the treated sludge 4 is accumulated, and a bottom front side of the accumulated hopper 5. A plurality of extrusion ports 6 having a cross-sectional shape such as a round shape or a rhombus provided in a horizontal row at predetermined intervals, and a plurality of extrusion operation members for extruding the treated sludge 4 in the integrated hopper 5 from each extrusion port 6 7 and a drying container transport device 9 by a conveyor or the like that feeds the drying container 1 from the lower position of the extruder 8 forward (in the direction of arrow A) at a constant pitch. The push-out operation member 7 is constituted by, for example, a punch member that is arranged such that each distal end side corresponds to each push-out opening 6 and can reciprocate back and forth.

かくして、図３（ａ）のように、乾燥用容器１が押出機８の下方位置にあるとき、押出作動部材７の全て又は任意のものだけを一斉に往動させることにより集積ホッパー5内の処理汚泥４を押出口６から押出して乾燥用容器１に低くて小さい山状に落下収容する。その乾燥用容器１に収容された低くて小さい山状の処理汚泥４を処理汚泥山４ａという。次いで、押出作動部材７を一斉に復動させた後、乾燥用容器１を乾燥用容器搬送装置９により前方へ定ピッチ送りする。次いで、再度、押出作動部材７の全て又は任意のものだけを一斉に往動させることで処理汚泥４を押出口６から押出して乾燥用容器１内の前記処理汚泥山４ａと並ぶよう落下収容する。爾後、押出作動部材７の往復運動と乾燥用容器１の定ピッチ送りとを順次繰り返して行うことにより、図３（ｂ）のように乾燥用容器１内に多数の略同一高さの低くて小さい山状の処理汚泥山４ａ群が格子状あるいは千鳥状等の適宜配列状態に収容される。これにより多数の低くて小さい山状の処理汚泥山４ａどうし間に空隙が存在し、乾燥用容器１内の処理汚泥山４ａ群が空隙を多くもつことになる。   Thus, as shown in FIG. 3 (a), when the drying container 1 is at the lower position of the extruder 8, all or any of the pushing operation members 7 are moved all at once in the stacking hopper 5. The treated sludge 4 is extruded from the extrusion port 6 and dropped and accommodated in a small and small mountain shape in the drying container 1. The low and small mountain-shaped treated sludge 4 accommodated in the drying container 1 is referred to as a treated sludge mountain 4a. Next, after the extrusion operation members 7 are moved all at once, the drying container 1 is fed forward at a constant pitch by the drying container transport device 9. Next, again, all or any of the extrusion operation members 7 are moved all at once to extrude the treated sludge 4 from the extrusion port 6 and drop and accommodate it so as to line up with the treated sludge mountain 4a in the drying container 1. . Thereafter, the reciprocating motion of the push-out operation member 7 and the constant pitch feed of the drying container 1 are sequentially repeated, so that a number of substantially the same heights are reduced in the drying container 1 as shown in FIG. The small mountain-shaped treated sludge hills 4a are accommodated in an appropriately arranged state such as a lattice or a staggered pattern. As a result, there are voids between a large number of low and small mountain-shaped treated sludge mountains 4a, and the treated sludge mountains 4a in the drying container 1 have many voids.

このように多数の略同一高さの低くて小さい山状の処理汚泥山４ａが適宜配列状態に収容され、空隙を多くもつ処理汚泥山４ａ群が収容された乾燥用容器１は、図５に示す汚泥脱水乾燥装置のリフター装置２５Ｌに移載して天日乾燥に供すると、少ない乾燥日数で効率良く天日乾燥することができる。   Thus, the drying container 1 in which a large number of low and small mountain-shaped treated sludge hills 4a having substantially the same height are accommodated in an appropriately arranged state and the treated sludge hills 4a having many voids are accommodated is shown in FIG. If it transfers to the lifter apparatus 25L of the sludge dehydration drying apparatus shown, and it uses for sun drying, it can sun-dry efficiently with few drying days.

なお、上記実施例では押出し作動部材７が往復運動自在なポンチ部材で構成されるが、これに代えて、複数本のスクリューで構成することもできる。複数本のスクリューによる押出し作動部材７を採用する場合はそれを定位置で一斉に回転させるだけで集積ホッパー５内の処理汚泥４を押出口６から押出すことができるため、ポンチ部材のように前後に往復運動させる必要はない。   In addition, in the said Example, although the extrusion action | operation member 7 is comprised by the punch member which can reciprocate freely, it can replace with this and can also be comprised by several screws. When the extrusion operating member 7 using a plurality of screws is employed, the treated sludge 4 in the integrated hopper 5 can be extruded from the extrusion port 6 only by rotating them simultaneously at a fixed position. There is no need to reciprocate back and forth.

本発明の方法を実施できる自動搬入装置の側面図である。It is a side view of the automatic carrying-in apparatus which can implement the method of this invention. 図１中における矢印Ｃから見た集積ホッパーの一部正面図である。It is a partial front view of the accumulation hopper seen from the arrow C in FIG. （ａ），（ｂ）は図１の自動搬入装置の作動説明図である。(A), (b) is operation | movement explanatory drawing of the automatic carrying-in apparatus of FIG. 乾燥用容器の分解斜視図である。It is a disassembled perspective view of the container for drying. 従来例の汚泥脱水乾燥装置の正面図である。It is a front view of the sludge dehydration drying apparatus of a prior art example.

符号の説明Explanation of symbols

１ 乾燥用容器
４ 処理汚泥
４ａ 処理汚泥山
５ 集積ホッパー
６ 押出口
７ 押出作動部材
８ 押出機
９ 乾燥用容器搬送装置

DESCRIPTION OF SYMBOLS 1 Container for drying 4 Processed sludge 4a Processed sludge mountain 5 Accumulation hopper 6 Extrusion port 7 Extrusion operation member 8 Extruder 9 Drying container conveyance apparatus

Claims (2)

予め適宜脱水処理された処理汚泥を乾燥用容器に搬入する乾燥用容器への処理汚泥の自動搬入方法であって、
処理汚泥が集積される集積ホッパーと、この集積ホッパーの底部前側に、横一列に所定間隔置きに並べて設けられた複数個の押出口と、各押出口から前記集積ホッパー内の処理汚泥を押出す複数本の押出作動部材を備えた押出機と、この押出機の下方位置から前方へ前記乾燥用容器を定ピッチずつ送る乾燥用容器搬送装置と、を備え、
前記乾燥用容器が前記押出機の下方位置にあるとき前記押出作動部材により前記集積ホッパー内の処理汚泥を前記押出口から押出して前記乾燥用容器に低くて小さい山状に落下収容し、次いで、前記乾燥用容器を前方へ定ピッチ送りした後、再度、前記押出作動部材により前記押出口から処理汚泥を押出して前記乾燥用容器内の処理汚泥山と並ぶよう落下収容し、爾後、前記押出作動部材による押出し作動と前記乾燥用容器の定ピッチ送りとを順次繰り返して行うことにより乾燥用容器内に多数の低くて小さい山状の処理汚泥山を適宜配列状態に収容することを特徴とする、乾燥用容器への処理汚泥の自動搬入方法。 A method for automatically loading treated sludge into a drying container, wherein the treated sludge that has been appropriately dehydrated in advance is carried into a drying container,
An accumulation hopper in which the treated sludge is accumulated, a plurality of extrusion ports arranged in a horizontal row at predetermined intervals on the front side of the bottom of the accumulation hopper, and the treated sludge in the accumulation hopper is extruded from each extrusion port An extruder provided with a plurality of extrusion operation members, and a drying container transport device that feeds the drying container from the lower position to the front of the extruder by a constant pitch,
When the drying container is at a lower position of the extruder, the processing member in the accumulation hopper is pushed out from the extrusion port by the extrusion operation member and dropped into the drying container in a small and small mountain shape, and then, After the drying container is fed forward at a constant pitch, the processed sludge is pushed out again from the extrusion port by the extrusion operation member and is dropped and accommodated so as to be aligned with the processed sludge pile in the drying container. It is characterized in that a number of low and small mountain-shaped treated sludge piles are appropriately accommodated in the drying container by repeatedly performing the extrusion operation by the member and the constant pitch feed of the drying container, A method for automatically loading treated sludge into a drying container. 予め適宜脱水処理された処理汚泥を乾燥用容器に搬入する乾燥用容器への処理汚泥の自動搬入装置であって、
処理汚泥が集積される集積ホッパーと、この集積ホッパーの底部前側に、横一列に所定間隔置きに並べて設けられた複数個の押出口と、各押出口から前記集積ホッパー内の処理汚泥を押出す複数本の押出作動部材を備えた押出機と、この押出機の下方位置から前方へ前記乾燥用容器を定ピッチずつ送る乾燥用容器搬送装置と、を備えていることを特徴とする、乾燥用容器への処理汚泥の自動搬入装置。

An apparatus for automatically carrying in the treated sludge to the drying container for carrying the treated sludge that has been appropriately dehydrated in advance into the drying container,
An accumulation hopper in which the treated sludge is accumulated, a plurality of extrusion ports arranged in a horizontal row at predetermined intervals on the front side of the bottom of the accumulation hopper, and the treated sludge in the accumulation hopper is extruded from each extrusion port A drying machine comprising: an extruder provided with a plurality of extrusion operation members; and a drying container transport device that feeds the drying container from the lower position to the front of the extruder at a constant pitch. Automatic loading equipment for processing sludge into containers.

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