JP3703640B2 - Recycled granulated product manufacturing apparatus and method - Google Patents

Description

【００１９】
ロータ３の回転羽根１５の形状は、本実施例の外に図１１に示す如く複数の円柱部材１７を垂直方向に向けて、第２回転軸１８から任意の距離を置いて配設したものでもよい。
【００２０】
【発明の効果】
請求項1によると、１つの装置で3つの工程に対応出来ることから、省スペースに貢献する。
【００２１】
請求項２及び３によると、特に粉砕工程において脱水ケーキを効率よく微細化できると共に造粒工程において混練物を粒状に解砕するものである。
【００２２】
請求項４及び５によると、特にねっか工程において撹拌翼の押圧作用を利用した十分なねっかを行なうことができ、圧縮強度に富んだ造粒物を得ることができる。
【００２３】
請求項６によると、特にねっか工程において撹拌翼の回転方向が、正逆を繰り返し変更することによって、撹拌翼の押圧作用を利用した十分なねっかを行なうことができ、従来に増した圧縮強度に富んだ造粒物を得ることができる。
【００２４】
請求項７によると、十分ねっかされた混練物の固まりを、有効に細切れに分解させることができる。
【図面の簡単な説明】
【図１】本発明の装置を一部破断した平面図。
【図２】図１のＺ−Ｚ部における断面図。
【図３】各内容物をドラム内に入れて造粒物となす手順を示す工程図。
【図４】第１工程における撹拌翼、ロータ、内容物の動きを示す模式図。
【図５】第２工程における撹拌翼、ロータ、内容物の動きを示す模式図。
【図６】第３工程における撹拌翼、ロータ、内容物の動きを示す模式図。
【図７】第４工程における撹拌翼、ロータ、内容物の動きを示す模式図。
【図８】撹拌翼の各回転方向における作用図。
【図９】回転羽根の各回転方向における作用図。
【図１０】スキマ変更機構の動きを示す側面図。
【図１１】ロータの他の実施例を示す斜視図。
【符号の説明】
１………ドラム
２………撹拌翼
３………ロータ
８………撹拌具
９………ドラム内壁
１０………スキマ変更機構
１１………内容物、混合物、混練物[0001]
BACKGROUND OF THE INVENTION
Granulation by adding solidification materials, additives, etc. to a lump of fine granules (hereinafter referred to as dehydrated cake) or construction soil after squeezing mud containing a large amount of moisture such as sludge The present invention relates to an apparatus for producing a regenerated granulated product and a method for producing the same.
[0002]
[Prior art]
Conventionally, most of the dehydrated cake has been processed by a method such as handing it over to a processor as industrial waste. However, due to the recent trend of recycling, it is considered to use this dehydrated cake as a resource again, and the main thing is that it is formed into a granulated product and used for horticultural materials and construction materials. ing. In order to obtain these granulated materials, it has been known to perform the following three steps using dedicated machines.
First, as a first step, the dehydrated cake is pulverized into a pulverized product. Next, as a second step, a solidified material such as cement, an additive suitable for the purpose, and the like are added to the pulverized product and kneaded (mixed + nek) to obtain a kneaded product. Furthermore, as a third step, the kneaded product was granulated to a certain size to obtain a granulated product.
In these processes, in particular, in the second process, in addition to mixing the materials, an operation of strongly kneading the mixed material called “Nekka” is required, and there are a roll mill, a Muller type kneader, etc. as the apparatus.
[0003]
In addition, the small soil such as construction residual soil does not require the pulverization that is the first step, and has been used after two steps of kneading in the second step and granulation in the third step.
[0004]
[Problems to be solved by the invention]
However, even though it is best to go through the above steps when processing for testing, in any case above, the roll mill, the Muller type in order to cope with a large amount of processing in the second step in practice. Neck machines and the like have not been used because they become neck processes, and in most cases, mixers for kneading concrete were used instead. Therefore, the finished granulated product is in a state in which the solidified material is coated only on the outside thereof, and the entire bonding force is weak, and the compressive strength is extremely weak.
[0005]
In view of this actual situation, the present invention newly performs the above three steps until obtaining a granulated product from dehydrated cake or construction residual soil, etc., and is carried out using one device, The purpose is to improve the quality of the granulated product by adding a sufficient effect to the adding step.
[0006]
[Means for Solving the Problems]
Therefore the present invention includes a drum store the material therein, a rotor that rotates while revolving the stirring blade revolves within the drum, the rotational direction and rotational speed rotation of each of the revolution and the rotor of the stirring blade A solidifying agent, additive, etc. are added to dewatered cake or construction residual soil, etc., which is arbitrarily selected and has a mechanism for changing the clearance between the stirring blade and the inner wall of the drum depending on the rotation direction of the stirring blade. Te is an apparatus for producing a granulated reproducing granule, a drum store the material therein, a rotor which rotates with the stirring blade and the revolution revolves within the drum, the rotation of the revolution and the rotor of the stirring blade Using a device that can arbitrarily select the rotation direction and rotation speed of each, the mixing process, brazing process, and granulation process are performed as a series of continuous operations in the same drum. Solidifying agent such as dehydrated cake or construction waste soil carried while conforming method (A) the net or process of reproducing granulate is granulated by the addition of additives and the like, rotates the rotating direction of the stirring blade in the reverse rotation To be implemented,
(A) The granulation step is carried out by rotating the stirring blade in the reverse direction, and the drum stores the material therein, the stirring blade revolving in the drum, and while revolving A rotating rotor is provided, and the four steps of the crushing step, the mixing step, the brazing step, and the granulation step are the same using an apparatus in which the revolution of the stirring blade and the rotation of the rotor are arbitrarily selected in each rotation direction and rotation speed. A method for producing a regenerated granulated product that is granulated by adding a solidifying agent, additives, etc. to dewatered cake or construction residual soil that is carried out in accordance with the following restrictive conditions. ) The crushing step is carried out by rotating the rotor at a high speed, and (a) the brazing step is carried out by rotating the stirring blade in the reverse direction.
(C) The granulation step is performed by rotating the stirring blade in the reverse direction.
[0007]
The present invention includes a revolving stirring blade and a rotor that rotates while revolving, performs granulation with the revolution of the stirring blade, and performs crushing and mixing with the rotor. Therefore, the rotation direction and rotation speed of the revolution of the stirring blade and the rotation of the rotor are arbitrarily set. By changing the rotation direction and rotation speed, the functions of the stirring blade and the rotor are changed to solve the problem. .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
As a specific example, the case of obtaining a granulated product from a dehydrated cake will be described with reference to the drawings. FIG. 1 is a plan view of the apparatus, and FIG. 2 is a cross-sectional view taken along the line ZZ in FIG.
[0009]
In FIG. 1, a cylindrical drum 1 is provided with a stirring blade 2 that revolves and a rotor 3 that rotates while revolving. The first rotating shaft 4 to which the revolving stirring blade 2 is attached is provided with a motor A5 provided outside the drum 1 via the speed change mechanism A13, and freely rotates in the direction and speed of revolving by the operation of the speed change mechanism A13. Can be changed. The rotor 3 that rotates while revolving is attached to an arm 6 that is provided integrally with the rotary shaft 4 at the top of the first rotary shaft 4, and is revolved and rotated by the rotation of the first rotary shaft 4. The rotation direction and rotation speed of the rotation of the rotary blade 15 provided in the rotor 3 can be freely changed by the motor B7 via the transmission mechanism B14 provided. In addition, the vertical cut surface of the rotary blade 15 is a polygon as shown in FIG. 9, and the front side of the rotary blade 15 at the time of forward rotation is inclined by an angle α. A plurality of pins 24 projecting toward the drum inner wall 9 are provided at the lowermost stage of the rotary blade 15 with a gap Y between the pins 24 and the drum inner wall 9. Further, the stirring tool 8 provided in the stirring blade 2 includes a clearance changing mechanism 10 that can change the clearance between the stirring tool 8 and the drum inner wall 9 of the drum 1. The clearance changing mechanism 10 includes a pin 19, a bracket A 20, a bracket B 21, and a stopper 22, and the bracket B 21 can swing around the pin 19. As shown in FIG. 10, the clearance changing mechanism 10 changes the mounting angle of the stopper 22 to change the swing angle of the bracket B21, and the clearance X between the stirrer 8 and the drum inner wall 9 becomes X1, X2 shown in the drawing. The structure can be changed. In addition, a scraper 12 that removes the contents 11 adhering to the drum inner wall 9 is attached to the arm 6 and has the same rotational direction and rotational speed as the rotary blade 2.
[0010]
In this apparatus having such a structure, if the motor A5 and the motor B7 are driven while operating the transmission mechanism A13 and the transmission mechanism B14, the rotational direction and rotational speed of the revolving stirring blade 2 and the stirring blade 2 The clearance with the drum inner wall 9 can be adjusted arbitrarily, and the rotation direction and rotation speed of the rotor 3 that rotates while revolving can be adjusted arbitrarily, thereby changing the functions of the agitator 8 and the rotary blade 15. It becomes.
[0011]
The process of making a granulated product from a dehydrated cake using this apparatus will be described step by step with reference to the drawings.
[0012]
FIG. 3 shows the process diagram, FIGS. 4 to 7 are schematic diagrams showing the movement of the contents 11 according to the process, and FIG. 8 shows the clearance between the stirring blade 2 and the drum inner wall 9 by the action of the clearance change mechanism 10. FIG. 9 is a schematic diagram showing the moving state of the contents 11 by the rotating blades 15 when the rotational direction of rotation of the rotor 3 is changed.
The black arrow shown in the figure indicates the direction in which the contents 11 are relatively moved by the rotation of the stirring blade 2 and the rotor 3, and the white arrow indicates the rotation direction of the revolution of the stirring blade 2 and the rotation of the rotor 3. is there.
[0013]
FIG. 4 is a diagram showing a pulverization process, which is the first process. The agitating blade 2 and the rotor 3 both have a normal rotation direction and a high rotation speed, and the agitation blade in order to pulverize the dewatered cake 16 as small as possible. No. 2 is rotated forward, and the dewatered cake 16 crushed on the inner wall 9 of the drum is pulverized further by the rotor 3 rotating at high speed while loosening as shown in FIG. At this time, as shown in FIG. 9A, the side cut by the angle α of the rotary blade 15 is the forward rotation in the rotation direction, and therefore, it is suitable for cutting and pulverizing the dehydrated cake.
The rotation speed at this time requires high-speed rotation, and the peripheral speed of the stirring blade 2 is preferably 150 m / min to 350 m / min, and the rotational speed of the rotor 3 is preferably 400 rpm to 750 rpm. It is suitable that the peripheral speed of the blade 2 is 170 m / min and the rotational speed of the rotor 3 is 600 rpm.
[0014]
FIG. 5 is a diagram showing a mixing process, which is the second process. As the contents 11, cement and a small amount of water are added as a solidifying material to the pulverized product obtained by pulverizing the dehydrated cake 16 in the first process. In order to mix these three components, the agitating blade 2 rotates in the forward direction and the rotational speed is high speed, and the rotor 3 rotates in the reverse direction and the rotational speed is high speed. As a result, the three members (contents 11) can be sufficiently mixed and diffused. In particular, since the rotation direction of the rotor 3 is reverse rotation, the mixture is divided into two by the vertical surface 23 that is the rotation direction of the rotary blade 15 as shown in FIG. 9B, thereby promoting the dispersion of the mixture.
[0015]
FIG. 6 is a diagram showing the third step, the nebulization step. The stirring blade 2 rotates at a low speed in the direction of rotation in the reverse rotation direction, and the stirring tool 8 and the drum inner wall 9 are rotated as shown in FIG. 8B. It works to knead well with the gradually decreasing gap X. At that time, the rotor 3 has a small clearance Y between the rotary blade 15 and the drum inner wall 9, and in order to peel and disperse the mixture pressed against the drum inner wall 9 by the agitator 8, the rotor 3 moves at a low speed in the reverse rotation direction. It will be rotated. In this case, in order to perform sufficient kneading, by repeatedly changing the rotation direction of the stirring blade 2, the pressing and peeling can be more reliably performed.
Here, the rotational speed of the low speed rotation is preferably 30 m / min to 80 m / min for the peripheral speed of the stirring blade 2 and 100 to 250 rpm for the rotation speed of the rotor 3. A speed of 40 m / min and a rotational speed of the rotor 3 of 150 rpm are suitable. The movement of the mixture indicated by the dotted line in the figure indicates a state in which the mixed material is pressed against the inner wall 9 of the drum by the stirring tool 8 and has been subjected to a dull action.
[0016]
FIG. 7 is a diagram showing a granulation process, which is the fourth process, and the rotor 3 is rotated in the forward rotation direction at a high speed while kneading is performed in the same manner as the brazing process in which the stirring blade 2 is reversely rotated at a low speed. Thus, the kneaded material (content 11) is divided into small chunks and discharged out of the drum 1 from a discharge gate (not shown).
[0017]
The rotational directions and rotational speeds of the revolution of the stirring blade 2 and the rotation of the rotor 3 in each step are summarized in Table 1.
[0018]
[Table 1]

[0019]
The shape of the rotary blade 15 of the rotor 3 may be one in which a plurality of cylindrical members 17 are arranged at an arbitrary distance from the second rotary shaft 18 as shown in FIG. Good.
[0020]
【The invention's effect】
According to claim 1, since one apparatus can cope with three processes, it contributes to space saving.
[0021]
According to the second and third aspects, the dehydrated cake can be efficiently refined particularly in the pulverization step, and the kneaded product is crushed into granules in the granulation step.
[0022]
According to the fourth and fifth aspects, it is possible to perform a sufficient spray using the pressing action of the stirring blade, particularly in the soldering process, and to obtain a granulated product having a high compressive strength.
[0023]
According to the sixth aspect of the present invention, the rotation direction of the agitating blade can be sufficiently changed using the reversal of forward and reverse, particularly in the brazing process, so that it is possible to perform sufficient neglect using the pressing action of the agitating blade, and the compression increased compared to the conventional method. A granulated product rich in strength can be obtained.
[0024]
According to the seventh aspect of the present invention, the mass of the kneaded material that has been sufficiently kneaded can be effectively broken into small pieces.
[Brief description of the drawings]
FIG. 1 is a plan view in which a device of the present invention is partially broken.
FIG. 2 is a cross-sectional view taken along the line ZZ in FIG.
FIG. 3 is a process diagram showing a procedure for putting each content into a drum to form a granulated product.
FIG. 4 is a schematic diagram showing the movement of a stirring blade, a rotor, and contents in a first step.
FIG. 5 is a schematic diagram showing the movement of a stirring blade, a rotor, and contents in a second step.
FIG. 6 is a schematic diagram showing the movement of a stirring blade, a rotor, and contents in a third step.
FIG. 7 is a schematic diagram showing the movement of a stirring blade, a rotor, and contents in a fourth step.
FIG. 8 is an action diagram of each stirring blade in each rotation direction.
FIG. 9 is an operation diagram of each rotary blade in each rotation direction.
FIG. 10 is a side view showing the movement of the clearance changing mechanism.
FIG. 11 is a perspective view showing another embodiment of the rotor.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ......... Drum 2 ...... Stirring blade 3 ......... Rotor 8 ......... Stirrer 9 ......... Drum inner wall 10 ......... Skim change mechanism 11 ......... Contents, mixture, kneaded material

Claims (7)

A drum store the material therein, a rotor that rotates while revolving the stirring blade revolves in the drum, together with the rotation of the revolution and the rotor of the stirring blades is arbitrarily selected direction of rotation and rotational speed of the respective Recycled structure that adds a solidifying agent, additives, etc. to dehydrated cake or construction surplus soil, which is equipped with a mechanism for changing the clearance between the stirring blade and the drum inner wall depending on the rotation direction of the stirring blade. Grain production equipment. The said rotor has a rotary blade which has a space | interval in a layer form toward the orthogonal | vertical direction from the rotating shaft of the rotor , The solidification agent, the additive, etc. are added to the dewatering cake or construction surplus soil etc. of Claim 1 apparatus for manufacturing a particle reproduces granules. 2. The dewatered cake or construction residual soil according to claim 1, wherein the rotor has a plurality of rotating blades parallel to the rotation axis of the rotor, and the cutting surfaces of the blades are circular in the shape of the cutting surface. An apparatus for producing a regenerated granulated product which is granulated by adding a solidifying agent, an additive and the like . A drum store the material therein, a rotor which rotates with the stirring blade and the revolution revolves within the drum, apparatus rotation of the revolution and the rotor of the stirring blades is arbitrarily selected direction of rotation and rotational speed of the respective The mixing process, brazing process, and granulation process are performed as a series of continuous operations in the same drum, and a solidifying agent is added to dewatered cake or construction residual soil, etc., which is performed in accordance with the following restrictions. A method for producing a regenerated granulated product that is granulated by adding an agent or the like (a) The above-mentioned step is carried out by rotating the rotating direction of the stirring blade in the reverse direction,
(A) The granulation step is performed by rotating the stirring blade in the reverse direction. A drum store the material therein, a rotor which rotates with the stirring blade and the revolution revolves within the drum, apparatus rotation of the revolution and the rotor of the stirring blades is arbitrarily selected direction of rotation and rotational speed of the respective The pulverization process, mixing process, brazing process, and granulation process are performed as a series of continuous operations in the same drum, and solidified into dewatered cake or construction soil, etc. that is performed according to the following restriction conditions. A method for producing a regenerated granulated product that is granulated by adding an agent, an additive, etc. It is carried out by rotating the stirring blade in the reverse direction.
(C) The granulation step is carried out by rotating the stirring blade in the reverse direction. 6. The regenerated granulated product which is granulated by adding a solidifying agent, an additive or the like to the dewatered cake or construction residual soil according to claim 4 or 5, wherein the screwing step is performed by repeatedly changing the rotating direction of the stirring blade. Production method. The regenerated granulated product obtained by adding the solidifying agent, additive, etc. to the dewatered cake or construction residual soil according to claim 4 or 5, wherein the granulating step is carried out by rotating the rotor at a high speed. Production method.

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