JP4126398B2 - Raw material agitation and mixing equipment - Google Patents

Raw material agitation and mixing equipment Download PDF

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JP4126398B2
JP4126398B2 JP2004023374A JP2004023374A JP4126398B2 JP 4126398 B2 JP4126398 B2 JP 4126398B2 JP 2004023374 A JP2004023374 A JP 2004023374A JP 2004023374 A JP2004023374 A JP 2004023374A JP 4126398 B2 JP4126398 B2 JP 4126398B2
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志郎 中村
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本発明は、汚泥、泥土、建設発生土、堆肥など（以下原料という）を攪拌混合する装置に関するものである。   The present invention relates to an apparatus for stirring and mixing sludge, mud, construction generated soil, compost and the like (hereinafter referred to as raw materials).

建築及び土木工事にともなって発生する建築発生土や浚渫土などの汚泥、泥土は、天日乾燥あるいはバックホウ等の建設機械を利用して軟弱な泥土に改良材を混合して土質改良が行われる。泥土が大量に発生する場合には土質改良装置のプラントを建築及び土木工事現場に設置して工事現場に発生した泥土に改良材を混合し、これを別に設けた貯蔵（養生）ヤードまで搬送するという方法が採られる。   Sludge and mud such as construction generated soil and dredged soil generated by construction and civil engineering work are improved by mixing improvement materials into soft mud using sun drying or backhoe and other construction machines. . When a large amount of mud is generated, a plant for soil quality improvement equipment is installed at the construction and civil engineering sites, and the improved material is mixed with the mud generated at the construction site and transported to a separate storage (curing) yard. The method is taken.

泥土と改良材とを混合する方式を大別すると、バッチ混合方式と連続混合方式とに分類されるが、大量処理を行うには、連続混合方式によるのが望ましい。連続土質改良は、解砕・粒度調整の前処理と、改良材の混合処理とによって行われ、前処理への原泥土の搬入、前処理から混合処理への移送、混合処理からの搬出はコンベア装置によって行われる。   The method of mixing the mud and the improved material is roughly classified into a batch mixing method and a continuous mixing method, but it is desirable to use the continuous mixing method for mass processing. Continuous soil improvement is performed by pretreatment for crushing and particle size adjustment and mixing treatment of the improved material. Loading of raw mud into the pretreatment, transfer from the pretreatment to the mixing treatment, and removal from the mixing treatment are conveyors. Done by the device.

しかし、上記連続混合方式は土地又は床等に機器を据え付けて運転する方式であるため、複数の作業場間を移動させるには設置、分解等の作業を繰り返す必要があり、また、遠く離れた作業現場に設置するには機材運搬等の作業が必要になり使用場所に制限を受けるという課題があるとして無端キャタピラを装備した自走式車両の車体上で解砕・粒度調整の前処理と、改良材の混合処理を行うミキサ車が開発された。   However, since the above continuous mixing method is a method in which equipment is installed and operated on the land or floor, it is necessary to repeat operations such as installation and disassembly in order to move between multiple workplaces, and work far away Pre-treatment of crushing and particle size adjustment on the body of a self-propelled vehicle equipped with an endless caterpillar and improvement as there is a problem that equipment transportation etc. is required to install on site and there is a problem that it is restricted in use place A mixer truck that mixes materials has been developed.

たしかに自走式車両を用いて連続攪拌方式を行えば使用場所や連続処理の問題は解決できる。滞留時間を調節に関してミキサでは、上下の傾きにより調節すると、傾きの程度によっては比重の軽い泥土（水分の多い泥土）と比重の重い泥土とが分離しやすく一定品質の製品を生産することが困難であり、さらに、傾きとミキサの回転速度及び生産量（排出量）とは相互に関係し、また、泥土を攪拌する多数の混合羽根を設置した上記ミキサの混合胴は上部が開放されているために、泥土の量が部分的に偏ったり、オーバフローしたりして生産量の制御が困難になり、更に、混練装置が混練作業と移送を兼ねているため大きな駆動装置を必要とするという課題があるとして、この問題を解決するため原料の供給、製品の排出が容易で攪拌時間を自由に調整可能にすると共に、小さな駆動動力で、攪拌むらのない良質の改良土を適量だけ生産可能にし、かつ、コンパクトにして自走式車両に容易に搭載可能な半連続式混合攪拌装置を提案している。   Certainly, if the continuous agitation method is performed using a self-propelled vehicle, the problem of the place of use and continuous processing can be solved. When adjusting the dwell time by adjusting the vertical inclination of the mixer, depending on the degree of inclination, it is easy to separate mud with light specific gravity (muddy soil with a high moisture content) and mud with heavy specific gravity, and it is difficult to produce a product of constant quality. Furthermore, the inclination, the rotational speed of the mixer and the production amount (discharge amount) are related to each other, and the upper part of the mixing cylinder of the mixer provided with a plurality of mixing blades for stirring the mud is open. Therefore, the amount of mud is partially biased or overflows, making it difficult to control the production amount. Further, since the kneading device serves as both kneading work and transfer, a large drive device is required. In order to solve this problem, it is easy to supply raw materials and discharge products and adjust the agitation time freely, and with a small drive power, produce an appropriate amount of high-quality improved soil without unevenness in agitation. Possible to, and are in the compact propose easily mountable semi-continuous mixing and stirring apparatus in self-propelled vehicles.

この半連続式混合攪拌装置は、原料投入口と製品排出口とを有する函体と、前記原料投入口に投入された原料を製品排出口に搬送する搬送手段と、前記函体内部に原料の流れ方向に沿って設けられた複数台の混合攪拌機と、前記搬送手段を駆動する第１駆動手段と、前記混合攪拌機を独立に駆動する第２駆動手段と、第１駆動手段及び第２駆動手段を制御可能なコントローラとを具備し、該コントローラは投入された原料の混合攪拌時は該原料を前記函体内に滞留させて混合攪拌するように前記複数台の混合攪拌機を駆動制御するというものである（特許文献２参照）。   This semi-continuous mixing and agitating device includes a box having a raw material inlet and a product outlet, a conveying means for conveying the raw material charged into the raw material inlet to a product outlet, and a raw material inside the box. A plurality of mixing agitators provided along the flow direction, a first driving means for driving the conveying means, a second driving means for independently driving the mixing agitator, a first driving means and a second driving means A controller that can control the plurality of mixing stirrers so that the raw materials stay in the box and are mixed and stirred at the time of mixing and stirring the charged raw materials. Yes (see Patent Document 2).

特許文献２に記載された半連続式混合攪拌装置によるときには、混合攪拌手段と原料搬送手段とを独立させて構成し、動力源を独立に制御可能にしていることから、個々の動力源は小さくて済み、かつ、混合攪拌の程度と出力量を独立して制御できるので良質な製品を適量得ることが容易になるという効果が強調されている。   In the case of the semi-continuous mixing and stirring apparatus described in Patent Document 2, the mixing and stirring means and the raw material conveying means are configured independently, and the power sources can be controlled independently. In addition, the effect of facilitating obtaining an appropriate amount of a high-quality product is emphasized because the degree of mixing and stirring and the output amount can be controlled independently.

この装置において、函体内部に原料の流れ方向に沿って設けられた複数台の混合攪拌機は、たとえば４個のミキサであり、各ミキサの回転軸は搬送ベルトの流れ（移動）方向と略９０度をなす角度に設けられ、表面に複数の刃物ホルダーが放射状に固設され、刃物ホルダーには、攪拌刃が脱着可能に固定されているのである。回転軸の両端が軸受けに支持され、その１端側に駆動モーターが連結されている。要するに回転軸は水平軸であり、攪拌刃は、垂直面内を正転あるいは逆転して搬送ベルト上の原料を叩打しつつ攪拌するのである。   In this apparatus, the plurality of mixing stirrers provided along the flow direction of the raw material inside the box are, for example, four mixers, and the rotation shaft of each mixer is approximately 90 in the flow (movement) direction of the conveyor belt. A plurality of blade holders are provided radially on the surface, and a stirring blade is detachably fixed to the blade holder. Both ends of the rotating shaft are supported by bearings, and a driving motor is connected to one end side thereof. In short, the rotating shaft is a horizontal axis, and the stirring blade stirs while striking the raw material on the conveyor belt by rotating forward or backward in the vertical plane.

しかしながら、このような攪拌方法によるときには、原料の性質に応じて十分に混合調整をすることが難しいのではないかと思われる。水平軸の周りを回転する攪拌刃によって原料を攪拌混合する効果は、原料を切断する作用と、原料を跳ね飛ばす作用とによって得られるから、攪拌刃を多段に設け、各刃を高速で回転させる限り、原料が細かく切断され、勢いよく飛ばされて均一混合が可能であるが、回転速度が遅いと、原料は切断されず、飛ばされないために原料は混合されにくいのである。   However, when such a stirring method is used, it seems that it may be difficult to sufficiently adjust the mixing according to the properties of the raw materials. The effect of stirring and mixing the raw material with the stirring blade rotating around the horizontal axis is obtained by the action of cutting the raw material and the action of jumping off the raw material. Therefore, the stirring blade is provided in multiple stages and each blade is rotated at high speed. As long as the raw material is finely cut and blown vigorously, uniform mixing is possible. However, when the rotational speed is low, the raw material is not cut and is not blown, so the raw materials are difficult to be mixed.

したがって多段のミキサを用いて軟質の原料を混合するかぎり特別に問題とならないにしても、原料が土砂や土塊のように比較的硬質で負荷が大きいために高速回転ができないときには、十分な混合は難しいものと考えられる。混合攪拌処理すべき原料の中には、比較的やわらかい汚泥、泥土や、比較的硬い砂、土砂、さらには建設発生土中に含まれるコンクリート塊、岩石のような塊状物が異物として含まれる場合があり、ミキサの攪拌刃を常に高速回転させるわけにはゆかず、原料の性状に応じてミキサの攪拌刃の回転速度を原料の性状に適した速さに調整しなければならない事情があるからである。
特開平９−５３２５５号公報 特開２００３−２３６３５６号公報 Therefore, even if there is no particular problem as long as soft raw materials are mixed using a multistage mixer, sufficient mixing is not possible when high-speed rotation is impossible because the raw materials are relatively hard and heavy loads such as earth and sand or lump. It is considered difficult. The raw materials to be mixed and stirred include relatively soft sludge, mud, relatively hard sand, earth and sand, and concrete lumps and rock-like lumps contained in construction generated soil. Because the mixer stirring blade cannot always be rotated at high speed, the rotation speed of the mixer stirring blade must be adjusted to a speed suitable for the properties of the raw material according to the properties of the raw material. It is.
Japanese Patent Laid-Open No. 9-53255 JP 2003-236356 A

解決しようとする問題点は、上記半連続式混合攪拌装置のように搬送ベルト上を送られてきた原料を水平軸を中心に垂直面内で回転するミキサの攪拌刃を用いたのでは攪拌刃を高速回転させない限り、十分な攪拌混合効果が得られないこと、したがって、原料の性状によっては十分に攪拌混合できないという点である。   The problem to be solved is that if the mixer stirring blade that rotates the raw material fed on the conveyor belt in the vertical plane around the horizontal axis as in the semi-continuous mixing stirring device is used, the stirring blade Unless the is rotated at a high speed, a sufficient stirring and mixing effect cannot be obtained. Therefore, depending on the properties of the raw materials, sufficient stirring and mixing cannot be achieved.

本発明は、垂直軸を中心に攪拌羽根を回転させつつ搬送ベルト上を送られてきた原料の攪拌混合を行うものであり、攪拌羽根を高速から低速まで自由に設定して原料を均一に攪拌混合できる点を主要な特徴とする。   The present invention stirs and mixes the raw materials sent on the conveyor belt while rotating the stirring blades around the vertical axis, and uniformly stirs the raw materials by freely setting the stirring blades from high speed to low speed. The main feature is that they can be mixed.

本発明の原料攪拌装置は、搬送ベルト上を送られてくる原料の流れに対し、異物の噛込みが少なく、搬送ベルトの送り速度を制御して流量を調整するとともに攪拌羽根の回転数を制御して原料がどのような性質、性状であっても均一混合が可能であるという利点がある。   The raw material agitation device of the present invention has less biting of foreign matter with respect to the flow of the raw material sent on the conveyor belt, adjusts the flow rate by controlling the feeding speed of the conveyor belt, and controls the rotation speed of the agitating blades Thus, there is an advantage that uniform mixing is possible regardless of the nature and properties of the raw material.

汚泥、泥土、建設発生土、堆肥などの原料を改良するために原料を均一に攪拌混合するという目的を、原料の搬送方向に沿って１軸または多軸に配置したミキサの攪拌刃根を水平姿勢で回転させつつ、搬送ベルト上を送られてきた原料を捏ね返すことによって実現した。   In order to improve the raw materials such as sludge, mud, construction generated soil, compost, etc., the mixing blades of the mixer placed in a single axis or multiple axes along the direction of the raw material are mixed horizontally to improve the raw materials. It was realized by turning the raw material sent on the conveyor belt while turning it.

図１は、本発明装置をたとえば泥土に改良材を添加、混合して泥土を改質する例に適用した場合の実施例について説明する。図１（ａ）は本発明の基本的構成を示す平面図、（ｂ）は同側面図である。図２（ａ）に実機の平面図、（ｂ）に同側面図を示す。図において、装置本体１（図１，２は説明をわかりやすくするために機枠の図示を省略している）の長手方向の１端（先端）側にヘッドプーリ２、他端（基端）側にテールプーリ３を設置し、両プーリ２、３間に搬送ベルト４を掛け渡し、ヘッドプーリ２とテールプーリ３間の搬送ベルト４を複数のガイドプーリ５，５・・・によって要所を支え、駆動側となるヘッドプーリ２を駆動装置６で回転駆動して搬送ベルト４の上側行程に原料を１方向に搬送する搬送ラインＬを形成する。原料の搬送方向を矢印にて示している。   FIG. 1 illustrates an embodiment in which the apparatus of the present invention is applied to an example in which an improvement material is added to and mixed with mud to modify the mud. FIG. 1A is a plan view showing a basic configuration of the present invention, and FIG. 1B is a side view thereof. FIG. 2A shows a plan view of the actual machine, and FIG. In the figure, a head pulley 2 and a second end (base end) on one end (front end) side in the longitudinal direction of the apparatus main body 1 (FIGS. 1 and 2 omit the illustration of the machine frame for easy understanding). The tail pulley 3 is installed on the side, the conveyor belt 4 is stretched between the pulleys 2, 3, and the conveyor belt 4 between the head pulley 2 and the tail pulley 3 is supported by a plurality of guide pulleys 5, 5,. The head pulley 2 on the driving side is rotationally driven by the driving device 6 to form a conveying line L that conveys the raw material in one direction on the upper side of the conveying belt 4. The conveying direction of the raw material is indicated by an arrow.

基端側の装置本体１には、搬送ベルト４の搬送面上に原料の第１投入口７ａ、第２投入口７ｂが、搬送ラインＬの上流側から順に設けられている。第１投入口７ａは、この実施例の場合原料、たとえば工事現場に発生した泥土の投入口であり、第２投入口７ｂは泥土を改質する改良材の投入口である。泥土の投入口となる第１投入口７ａは、必ずしも図１に示すようなホッパの形でなくてもよく、図２のように実質的に搬送ベルト４の搬送面が機外に開放され、工事現場に発生した泥土を原料として前段コンベア（図示略）などから搬送ベルト４上に搬入できればよい。   In the apparatus main body 1 on the base end side, a first input port 7 a and a second input port 7 b for raw material are provided in order from the upstream side of the transfer line L on the transfer surface of the transfer belt 4. In this embodiment, the first input port 7a is an input port for raw materials, for example, mud generated at a construction site, and the second input port 7b is an input port for an improved material for reforming mud. The first inlet 7a that serves as a mud inlet does not necessarily have the shape of a hopper as shown in FIG. 1, and the conveyor surface of the conveyor belt 4 is substantially opened to the outside as shown in FIG. What is necessary is just to be able to carry in on the conveyance belt 4 from a front | former stage conveyor (not shown) etc. by using the mud generated at the construction site as a raw material.

第２投入口７ｂの下流の機体１には、原料を攪拌混合するミキサ８が１〜多段に設置される。この実施例においてはミキサ８を４段に設置した例を示している。なお図１においては、ミキサ８を上流側から順に８ａ、８ｂ、８ｃ、８ｄとして区別している。各ミキサ８は、垂直軸９と、垂直軸９の下端に脱着可能に取り付けられた攪拌羽根１０とを有し、垂直軸９は、駆動装置１１に駆動されて１方向に回転し、攪拌羽根１０は、垂直軸９と一体回転し、搬送ベルト４の搬送面に向き合わされて水平姿勢で回転する羽根である。   A mixer 8 that stirs and mixes the raw materials is installed in one to multiple stages in the machine body 1 downstream of the second charging port 7b. In this embodiment, an example in which the mixers 8 are installed in four stages is shown. In FIG. 1, the mixer 8 is distinguished as 8a, 8b, 8c, 8d in order from the upstream side. Each mixer 8 has a vertical shaft 9 and a stirring blade 10 detachably attached to the lower end of the vertical shaft 9. The vertical shaft 9 is driven by a driving device 11 to rotate in one direction, and the stirring blade 10 Reference numeral 10 denotes a blade that rotates integrally with the vertical shaft 9, faces the transport surface of the transport belt 4, and rotates in a horizontal posture.

攪拌羽根１０は垂直軸から放射方向に水平に張り出した少なくとも２枚あるいはそれ以上の枚数の羽根を有するものであり、羽根の数は混合すべき原料の種類、攪拌能力の大小に応じて選定する。また各ミキサ８の攪拌羽根１０を支える垂直軸９は、搬送ラインＬの中心線Ｏ―Ｏから交互に一定距離だけ左右にずれた位置に配列されている。   The stirring blade 10 has at least two or more blades extending horizontally in the radial direction from the vertical axis, and the number of blades is selected according to the type of raw material to be mixed and the size of the stirring ability. . Further, the vertical shafts 9 that support the stirring blades 10 of the mixers 8 are arranged at positions that are alternately shifted from the center line OO of the transport line L to the left and right by a fixed distance.

図２は、本発明装置の実機の外観、図３は図２のＡ−Ａ線断面、図４は、図３のＢ−Ｂ線断面図を示している。搬送ラインＬに沿って上流側から下流側に向けて搬送ラインの要所に配列された各段のミキサ８は、図４に明らかにしているとおり、ヘッドプーリ２と、テールプーリ３間で搬送ベルトを支える前後のガイドプーリ５，５の間隔内に配置されている。   2 shows the appearance of the actual device of the present invention, FIG. 3 shows a cross section taken along the line AA of FIG. 2, and FIG. 4 shows a cross section taken along the line BB of FIG. As shown in FIG. 4, the mixers 8 at each stage arranged at the main points of the transport line from the upstream side to the downstream side along the transport line L are transported between the head pulley 2 and the tail pulley 3. Are arranged in the interval between the front and rear guide pulleys 5 and 5 that support the roller.

図３に示すように搬送ベルト４は、装置本体１の機枠１２内に囲まれた空間に設置されたものであり、搬送ベルト４の上方は、機枠１２に開閉可能に支持された蓋体１３に覆われ、各段のミキサ８は、各ミキサ８ごとに蓋体１３に吊り下げられているものである。蓋体１３には昇降駆動装置（油圧シリンダ）１４が取り付けられ、昇降駆動装置１４の駆動により図５に示すように蓋体１３は、ヒンジ１５を中心に上方へ回動し、ミキサ８を上方に持ち上げて各段のミキサ毎に機枠１２を開閉する。   As shown in FIG. 3, the conveyor belt 4 is installed in a space surrounded by the machine casing 12 of the apparatus main body 1, and the upper side of the conveyor belt 4 is a lid supported by the machine casing 12 so as to be opened and closed. The mixer 8 at each stage covered with the body 13 is suspended from the lid 13 for each mixer 8. An elevating drive device (hydraulic cylinder) 14 is attached to the lid 13, and as shown in FIG. 5, the lid 13 rotates upward about the hinge 15 by driving the elevating drive device 14, and moves the mixer 8 upward. The machine frame 12 is opened and closed for each stage of the mixer.

なお、装置本体１の内壁となる搬送ベルト４の左右側縁の機枠１２，１２およびミキサ８を吊り下げた蓋体１３の下面には、搬送ラインＬ上での原料の攪拌、混合時の騒音、振動の低減と、原料の付着による防食、さらには付着物の剥離を容易にするためゴム板などの緩衝性を有するライナー１６を張り付け、搬送ベルトの両側縁をガイドシール１７で支えて搬送ベルト４の両側のライナー１６を搬送ベルト４の搬送面に圧接し、ライナー１６と搬送ベルト４間からの原料の漏れを防止する。   Note that the machine frames 12 and 12 on the left and right side edges of the conveyor belt 4 serving as the inner wall of the apparatus main body 1 and the lower surface of the lid 13 from which the mixer 8 is suspended are used for stirring and mixing the raw material on the conveyor line L. In order to reduce noise and vibration, to prevent corrosion due to adhesion of raw materials, and to facilitate the peeling of deposits, a liner 16 having a cushioning property such as a rubber plate is attached, and the both side edges of the conveyor belt are supported by guide seals 17 and conveyed. The liners 16 on both sides of the belt 4 are pressed against the conveying surface of the conveying belt 4 to prevent leakage of raw materials from between the liner 16 and the conveying belt 4.

次に本発明装置を用いて原料を攪拌混合する要領を図１，２を用いて説明する。蓋体１３を閉じ、各段のミキサ８の攪拌羽根１０を搬送ベルト４の直上で搬送面に向き合わせて水平姿勢に保持させ、搬送ベルト４の駆動装置６の電源を投入して搬送ベルト４を１方向に移動させ、且つ各段のミキサ８を駆動する駆動装置１１の電源を投入してミキサ８の攪拌羽根１０を回転させる。各ミキサ８の攪拌羽根１０を回転させるに際しては、隣接相互のミキサ８間で攪拌羽根１０の回転方向を互いに異ならせる。   Next, the procedure for stirring and mixing the raw materials using the apparatus of the present invention will be described with reference to FIGS. The lid 13 is closed, the stirring blades 10 of the mixers 8 at each stage are held in a horizontal posture directly above the conveyor belt 4 so as to face the conveyor surface, the power of the driving device 6 of the conveyor belt 4 is turned on, and the conveyor belt 4 is turned on. Is moved in one direction, and the power of the driving device 11 for driving the mixer 8 at each stage is turned on to rotate the stirring blade 10 of the mixer 8. When the stirring blades 10 of the mixers 8 are rotated, the rotation directions of the stirring blades 10 are made different between the adjacent mixers 8.

隣接相互のミキサ８間で攪拌羽根１０の回転方向を互いに異ならせるとは、たとえば、図１において、第１段のミキサ８ａを左回転（正回転）させたときには、第２段のミキサ８ｂを右回転（逆回転）、第３段のミキサ８ｃを正回転させ、以下同様の要領で第４段のミキサ８ｄを逆回転させることである。   For example, in FIG. 1, when the first-stage mixer 8a is rotated counterclockwise (positive rotation) in FIG. 1, the second-stage mixer 8b is moved differently between adjacent mixers 8. To the right (reverse rotation), the third-stage mixer 8c is rotated forward, and the fourth-stage mixer 8d is then rotated in the same manner.

次に工事現場に発生した改良すべき汚泥、泥土あるいは建設発生土を原料として第１投入口７ａより、その定量ずつを搬送ベルト４上に投下し、続いて第２投入口７ｂより定量の改良材を連続的に投下する。図１において、搬送ベルト４上に投下された原料及び改良材は、搬送ラインＬに沿って装置本体１の基端側から先端側に搬送され、まず第１段のミキサ８ａの位置において攪拌羽根１０の正回転によって原料は攪拌され、改良材と混合される。原料は、以下同様に逆回転する第２段のミキサ８ｂ、正回転する第３段のミキサ８ｃ、逆回転する第４段のミキサ８ｄの順にそれぞれの攪拌羽根１０によって原料と改良材とが攪拌、混合され、改良土に改質されて搬送ベルト４の先端より次工程へ送り出される。   Next, the fixed amount of sludge, mud or construction generated soil generated at the construction site is dropped from the first input port 7a onto the conveyor belt 4 and then the fixed amount is improved from the second input port 7b. Drop material continuously. In FIG. 1, the raw material and the improved material dropped on the transport belt 4 are transported along the transport line L from the base end side of the apparatus main body 1 to the front end side, and are first stirred at the position of the first stage mixer 8a. By 10 forward rotations, the raw material is stirred and mixed with the improving material. In the same manner, the raw material and the improved material are stirred by the respective stirring blades 10 in the order of the second-stage mixer 8b that rotates in the reverse direction, the third-stage mixer 8c that rotates in the forward direction, and the fourth-stage mixer 8d that rotates in the reverse direction. , Mixed, reformed to improved soil, and sent to the next process from the tip of the conveyor belt 4.

本発明において、隣接するミキサ８の攪拌羽根１０の回転方向を互いに異ならせたため、原料は正方向、逆方向の攪拌力を交互に受け、この結果、原料は捏ね返され、１〜数段のミキサ８を経由する間に改良材と均一に混合される。また、各段のミキサ８の攪拌羽根１０の回転中心となる垂直軸の軸心を、搬送ラインの中心線にから一定距離だけ左右に交互にずらせたため、原料中に、もしコンクリート塊、岩石などの異物が含まれていたときには、その異物は各段のミキサの攪拌羽根に叩打されつつ攪拌羽根の外周に押し出され、攪拌羽根１０と、内壁のライナー１６間に形成される隙間を通して順次後段に送り出され、攪拌羽根の損傷は回避される。   In the present invention, since the rotation directions of the stirring blades 10 of the adjacent mixers 8 are different from each other, the raw material is alternately subjected to the stirring force in the forward direction and the reverse direction. While passing through the mixer 8, it is uniformly mixed with the improved material. Further, since the axis of the vertical axis, which is the rotation center of the stirring blade 10 of the mixer 8 at each stage, is alternately shifted to the left and right by a certain distance from the center line of the transfer line, in the raw material, if concrete lump, rock, etc. The foreign matter is pushed out to the outer periphery of the stirring blade while being beaten by the stirring blades of the mixers in each stage, and sequentially passed through the gap formed between the stirring blade 10 and the liner 16 on the inner wall. It is sent out and damage to the stirring blade is avoided.

また、攪拌羽根１０と、搬送ベルト４間に形成される隙間内に異物Ｒを噛みこんだときには、図４に示すように前後のガイドロープーリ５，５間で搬送ベルトが４‘のように撓み、搬送ベルト４と、攪拌羽根１０との間に異物Ｒの収納空間が形成されて攪拌羽根１０の破損は回避される。   Further, when the foreign matter R is caught in the gap formed between the stirring blade 10 and the transport belt 4, the transport belt is 4 'between the front and rear guide low pulleys 5 and 5, as shown in FIG. The storage space for the foreign matter R is formed between the bend and the conveyor belt 4 and the stirring blade 10, and the breakage of the stirring blade 10 is avoided.

なお、原料は各段のミキサ８の攪拌羽根１０の回転による剪断力、叩打力を受け、その勢いで原料の一部は円周方向あるいは上方に飛散するが、搬送ベルト４の両側は機枠のライナー１６で塞がれ、上方は蓋体のライナー１６の面で塞がれているため、原料が外部に漏れることがなく、飛散した原料は両側及び上方のライナー１６に衝突して騒音や振動は低減される。   The raw material receives shearing force and tapping force due to the rotation of the stirring blade 10 of the mixer 8 at each stage, and a part of the raw material is scattered in the circumferential direction or upward with the force. Since the upper part is covered with the surface of the liner 16 of the lid body, the raw material does not leak to the outside, and the scattered raw material collides with the liners 16 on both sides and the upper side, causing noise and Vibration is reduced.

搬送ベルト上に投下された原料の攪拌混合作業終了後、図５に示すように蓋体１３を開き、ミキサ８を上方に持ち上げて搬送面の清掃、ミキサ８の清掃を行う。搬送面から飛散してライナー面に付着している原料はライナー面を払拭して容易に剥離でき、ミキサ８は、蓋体１３と一体に持ち上げられて装置本体１外に取り出されるためにその清掃は容易である。   After completion of the stirring and mixing operation of the raw material dropped on the conveying belt, the lid 13 is opened as shown in FIG. 5 and the mixer 8 is lifted upward to clean the conveying surface and the mixer 8. The raw material scattered from the conveying surface and adhering to the liner surface can be easily peeled off by wiping the liner surface, and the mixer 8 is lifted together with the lid 13 and taken out of the apparatus main body 1 to clean it. Is easy.

図６は、搬送ラインの要所の同一円周上の位置に配列した１組をなす２以上のガイドプーリ２５、２５、・・・に搬送ベルト２４を支えて搬送ベルト２４の搬送面を曲面に変形させて保形させた例である。各段のミキサ２８には、垂直軸２９の下端に搬送面の曲面に沿う形状に湾曲させた攪拌羽根４０を取り付けている。各段のミキサ２８の垂直軸２９を搬送ラインの中心線から交互に左右に位置をずらせて設置し、搬送ベルト２４は各段のミキサ２８の設置位置をはずして各組のガイドプーリに支持させる点は先の例と同じである。   FIG. 6 shows a curved surface of the conveying belt 24 supported by the conveying belt 24 supported by a pair of two or more guide pulleys 25, 25,. This is an example in which the shape is deformed and retained. In each stage of the mixer 28, a stirring blade 40 is attached to the lower end of the vertical shaft 29 so as to be curved along the curved surface of the conveying surface. The vertical shafts 29 of the mixers 28 at each stage are alternately shifted from the center line of the transport line to the left and right, and the transport belt 24 is supported by each set of guide pulleys by removing the position of the mixer 28 at each stage. The point is the same as the previous example.

この例によれば、各段のミキサの攪拌羽根の回転により周方向に跳ね飛ばされた原料は、重力によって自ずから搬送面の曲面に沿って搬送ラインの中心線上に戻され、原料を有効に捏ね返すことができる。以上実施例においては、泥土に改良材を添加、混合して泥土を改質する例について説明したが２以上の原料を混合する場合、たとえば２以上の堆肥を混合する場合にもまったく同様に適用できるのは言うまでもない。   According to this example, the raw material splashed in the circumferential direction by the rotation of the stirring blades of the mixers at each stage is automatically returned to the center line of the transfer line along the curved surface of the transfer surface by gravity, and the raw material is effectively kneaded. Can return. In the above embodiment, the example of adding and mixing the improving material to the mud and modifying the mud has been described. However, when two or more raw materials are mixed, for example, when two or more composts are mixed, the same applies. Needless to say, you can.

本発明によれば、各段のミキサの攪拌羽根は垂直軸に支えられ、搬送ベルトの搬送面に近接して水平姿勢で回転させるため、垂直姿勢で回転させる攪拌羽根とは異なり、搬送面を送られてきた原料の層内で攪拌羽根を回転させつつ攪拌混合を行うため、低速で回転させても攪拌混合機能が低下することがない。したがって本発明によれば、原料の種類に応じて必要な回転速度を設定し、また、搬送ベルトの送り速度を自由に設定して原料を連続的に効率よく混合することができる。   According to the present invention, the stirring blades of the mixers at each stage are supported by the vertical shaft and rotate in a horizontal posture close to the conveying surface of the conveying belt. Since stirring and mixing are performed while rotating the stirring blade in the layer of the raw material that has been sent, the stirring and mixing function does not deteriorate even if the stirring blade is rotated at a low speed. Therefore, according to the present invention, the necessary rotational speed can be set according to the type of the raw material, and the raw material can be continuously and efficiently mixed by freely setting the feeding speed of the conveyor belt.

本発明は連続式の原料攪拌、混合装置であり、車両に搭載することも可能であり、建設現場に多量に発生する汚泥、泥土、建設発生土に改良材を添加して改良土に改質する作業、２種類以上の堆肥を混合する用途その他の原料を攪拌、混合する用途に用いて能率よく処理できる。   The present invention is a continuous raw material agitation and mixing device that can be mounted on a vehicle, and is improved to improved soil by adding improvement materials to sludge, mud, and construction generated soil generated in large quantities at the construction site. It can be efficiently processed by using it for mixing, mixing two or more composts, and mixing and mixing other raw materials.

（ａ）は本発明装置の基本構成を示す平面図、（ｂ）は同側面図である。(A) is a top view which shows the basic composition of this invention apparatus, (b) is the same side view. （ａ）は本発明装置の実施例の外観を示す平面図、（ｂ）は同側面図である。(A) is a top view which shows the external appearance of the Example of this invention apparatus, (b) is the same side view. 図２（ａ）のＡ―Ａ線断面図である。It is the sectional view on the AA line of Fig.2 (a). 図３のＢ−Ｂ線断面図である。FIG. 4 is a sectional view taken along line BB in FIG. 3. 蓋体を開いた状態を示す図である。It is a figure which shows the state which opened the cover body. 搬送ベルトの搬送面を曲面とした場合の例を示す図である。It is a figure which shows the example at the time of making the conveyance surface of a conveyance belt into a curved surface.

符号の説明Explanation of symbols

１ 装置本体
２ ヘッドプーリ
３ テールプーリ
４ 搬送ベルト
５ ガイドプーリ
６ 駆動装置
７ａ 第１投入口
７ｂ 第２投入口
８ ミキサ
９ 垂直軸
１０ 攪拌羽根
１１ 駆動装置
１２ 機枠
１３ 蓋体
１４ 昇降駆動装置
１５ ヒンジ
１６ ライナー
１７ ガイドレール
２５ ガイドプーリ
Ｌ 搬送ライン DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Head pulley 3 Tail pulley 4 Conveyor belt 5 Guide pulley 6 Driving device 7a 1st insertion port 7b 2nd insertion port 8 Mixer 9 Vertical shaft 10 Agitation blade 11 Driving device 12 Machine frame 13 Lid 14 Lifting drive device 15 Hinge 16 Liner 17 Guide rail 25 Guide pulley L Conveyance line

Claims (5)

搬送ベルトの搬送面上に搬送ラインの上流側から下流側に向けて少なくとも２段以上のミキサを設置した原料の攪拌、混合装置であって、
搬送ベルトは、要所をガイドプーリによって支えて長手方向の一端のヘッドプーリと他端のテールプーリ間に掛け渡され、搬送面上に搬入された攪拌、混合すべき原料を搬送ラインに沿って１方向に搬送するものであり、
ミキサは、垂直軸と、垂直軸の下端に取り付けられた攪拌羽根とを有し、
垂直軸は、１方向に回転駆動され、
攪拌羽根は、搬送ベルトの直上で搬送面に向き合わせた状態に保持され、垂直軸に駆動され、水平姿勢で回転しつつ搬送ラインに沿って搬送されてきた原料を捏ね返しつつ攪拌するものであり、
各段のミキサは、ヘッドプーリと、テールプーリ間で搬送ベルトを支える前後のガイドプーリの間隔内に配置されていることを特徴とする原料の攪拌、混合装置。 A material agitation and mixing device in which at least two or more stages of mixers are installed on the conveying surface of the conveying belt from the upstream side to the downstream side of the conveying line ,
The conveyor belt is supported by a guide pulley at a critical point and is stretched between a head pulley at one end in the longitudinal direction and a tail pulley at the other end. To convey in the direction,
The mixer has a vertical axis and a stirring blade attached to the lower end of the vertical axis,
The vertical axis is rotationally driven in one direction,
The stirring blade is held in a state directly facing the transport surface immediately above the transport belt, is driven by a vertical axis, and stirs the raw material transported along the transport line while rotating in a horizontal posture. Yes,
The mixer of each stage is disposed in the space between the head pulley and the front and rear guide pulleys that support the conveying belt between the tail pulley and the raw material stirring and mixing device. 前記ミキサは、搬送ラインの上流側から下流側に向けて少なくとも２段以上設置され、各段のミキサの攪拌羽根を支える垂直軸は、搬送ラインの中心線上から交互に左右にずれた位置に配列され、
前記攪拌羽根は、放射方向に張り出した少なくとも２枚あるいはそれ以上の枚数の羽根を有し、混合すべき原料の種類、攪拌能力の大小に応じて垂直軸に脱着可能に取り付けられ、
互いに隣接する上流側ミキサの攪拌羽根の回転方向と下流側ミキサの攪拌羽根の回転方向とは、互いに異ならせたことを特徴とする請求項１に記載の原料の攪拌、混合装置。 The mixer is installed in at least two or more stages from the upstream side to the downstream side of the transport line, and the vertical shafts supporting the stirring blades of the mixers in each stage are arranged at positions alternately shifted left and right from the center line of the transport line. And
The stirring blade has at least two or more blades projecting in the radial direction, and is detachably attached to the vertical shaft according to the type of raw material to be mixed and the stirring capacity,
The apparatus for stirring and mixing raw materials according to claim 1, wherein the rotation direction of the stirring blades of the upstream mixer adjacent to each other and the rotation direction of the stirring blades of the downstream mixer are different from each other . 前記搬送ベルトの上方は、機枠の一方に開閉可能に支持された蓋体に覆われ、各段のミキサは、各ミキサごとに蓋体に吊り下げられ、蓋体を開くことによりミキサは搬送ベルトの上方に持ち上げられるものであることを特徴とする請求項１または２に記載の原料の攪拌、混合装置。   The upper part of the conveyor belt is covered with a lid that can be opened and closed on one side of the machine frame, and each stage of the mixer is suspended by the lid for each mixer, and the mixer is conveyed by opening the lid. The apparatus for stirring and mixing raw materials according to claim 1 or 2, wherein the apparatus is lifted above the belt. 装置本体の内壁となる搬送ベルトの左右側縁の機枠およびミキサを吊り下げた蓋体の下面には、搬送ライン上での原料の攪拌、混合時の騒音、振動の低減と、原料の付着による防食、さらには付着物の剥離を容易にするためゴム板などの緩衝性を有するライナーが張り付けられていることを特徴とする請求項１または２に記載の原料の攪拌、混合装置。   The machine frame on the left and right edges of the conveyor belt, which is the inner wall of the main body of the machine, and the lower surface of the lid on which the mixer is suspended, reduce the stirring and mixing of raw materials on the conveying line, noise and vibration during mixing, and adherence of raw materials The raw material agitation and mixing apparatus according to claim 1, wherein a liner having a cushioning property such as a rubber plate is attached to prevent corrosion due to corrosion and further to peel off the adhered matter. 前記搬送ベルトは、搬送ラインの要所の同一円周上の位置に配列した１組をなす２以上のガイドプーリに支えられて搬送面が曲面に変形して保形され、
各段のミキサは、垂直軸の下端に搬送面の曲面に沿う形状に湾曲させた攪拌羽根を有するものであることを特徴とする請求項１に記載の原料の攪拌、混合装置。 The conveyor belt is supported by two or more guide pulleys that are arranged at the same circumferential position on the important point of the conveyor line, and the conveyor surface is deformed into a curved surface and held in shape.
2. The raw material agitation and mixing apparatus according to claim 1, wherein the mixer of each stage has an agitation blade curved in a shape along the curved surface of the conveying surface at the lower end of the vertical axis.
JP2004023374A 2004-01-30 2004-01-30 Raw material agitation and mixing equipment Expired - Fee Related JP4126398B2 (en)

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JP2007130623A (en) * 2005-10-11 2007-05-31 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd Mixing and stirring device of soil improving machine
JP4865292B2 (en) * 2005-10-11 2012-02-01 住友建機株式会社 Mixing and stirring device for soil improvement machine
CN113086497B (en) * 2021-03-25 2023-09-15 首钢京唐钢铁联合有限责任公司 Automatic blanking control method and device for pellet production line
CN113694819B (en) * 2021-09-03 2023-12-01 安徽宏晶新材料股份有限公司 Mixing stirring device for synthesizing block for synthesizing IIa type single crystal

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