JP6156803B2 - Solid processing product stirring device - Google Patents

Description

  The present invention mainly includes excavation work such as mountains, tunnels, roads, residential land development, excavation soil of fine particles discharged from work sites such as quarrying, mining, etc., construction residual soil composed of earth and sand, clay, construction sludge, etc. The present invention relates to a pulverization / stirring apparatus for granular / powder / lump processed products, which can pulverize and mix mixing adjustment materials composed of various other granular or powder processed products and stir them.

  Conventionally, an improved soil manufacturing machine for manufacturing improved soil is already known, for example, using a mixing machine as shown in Patent Document 1. This mixing machine rotates a rotating processing body in which a plurality of blades (claws) are arranged in a spiral on a rotating shaft supported in a horizontally long cylindrical drum, and rotates the soil supplied from the supply port into fine particles. The mixed preparation material is stirred and mixed while the processed product soil is discharged from the discharge port. Further, the present invention discloses a mechanism in which a claw in the opposite direction is arranged in the middle of a large number of claws, and a consideration material being conveyed is stagnated in the middle and stirred and pulverized.

Japanese Patent No. 4424612

  The invention of the above-mentioned Patent Document 1 was developed and proposed by the present inventors and was able to improve the pulverization performance and the conveyance performance. However, the apparatus shown here is initially mainly for the preparation of soil for construction work. It was developed for the purpose. However, this type of agitator has a wide range of treatment objects after commercialization, and has been used for example for the treatment of various organic wastes and various incineration ash, and the mixing of aggregates into cement slurry. Other widespread uses are expected.

  For this reason, in the conventional mechanism that assumes only the pulverization and mixing of soil for construction work, the pulverization and mixing are insufficient due to the properties of the processed material, or the feed (conveyance) performance is not uniform in the drum case. A failure has occurred.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a highly versatile solid processing product stirring apparatus that can cope with the above-described problems and can appropriately cope with as wide a range of processing objects as possible.

The present invention for solving the above-mentioned problems is as follows. First, a rotating shaft 7 is supported in a coaxial direction in a cylindrical drum case 4 for carrying in and discharging a workpiece W, and the outer periphery of the rotating shaft 7 is supported. , A plurality of conveying claws 9a whose tips are deformed so as to convey and agitate the processed material in the feeding direction by forward rotation are arranged in a spiral shape and arranged radially, and the rotation shaft 7 is rotated forward in the claw arrangement. A back claw 9b whose tip is deformed in a direction opposite to the conveyance claw 9a is disposed so that the processed material stays or is conveyed and stirred in the reverse feed direction, and the back claw 9b is arranged at the start end side and the end end portion of the claw arrangement. The claw 9a is arranged close to the side and the claw 9a is arranged before and after the back claw 9b in the processed material conveyance direction, and the claw arrangement does not have a curved or twisted deformation in the side surface direction. as characterized by being interposed flat claws 9c having the grinding function That.

  Secondly, one or two back claws 9b are provided adjacent to each other between the plurality of transport claws 9a in the nail arrangement.

Third , one to three flat claws 9c are installed adjacent to the upstream side of the back claw 9b and downstream of the conveyance claw 9a.

Fourth , the flat claw 9c is a flat plate and is formed of a vertically long plate.

  According to the apparatus of the present invention configured as described above, since the back claws are arranged close to the conveyance start end side and the conveyance end end side of the processed product in the drum case, all the processed products are at the start end. It stays on the part side and is preliminarily stirred and pulverized before being sent to the discharge side, and the original stirring and pulverization is smoothly performed while being conveyed by the conveying claw.

  Further, as a result of further re-pulverization and re-stirring as a finishing process while being retained by the back claw once again at the conveyance end portion side, there is an advantage that stirring and pulverization of various processed products are performed reliably and evenly. .

  In the standard specification shown in Patent Document 1, one or two back claws are most effective between the conveyance claws. If the number of the back claws is further increased, conveyance stagnation occurs, which is not desirable. In addition, crushing performance is improved when there are larger lumps when flat claws are provided in the nail arrangement. As a result, stirring and mixing performance is improved, and about 1 to 3 are provided on the back claw loading side (upstream side). Desirably, providing three or more sheets often hinders the conveyance performance.

It is a bottom view which shows a part of internal structure of this invention apparatus. It is an AA transverse cross section showing the installation state of a drum case and a claw. (A) is a front view for explanation showing an example of a claw arrangement of the rotary stirring unit of the apparatus of the present invention, and (B) is an image view showing the behavior of the processed material in the drum corresponding to the claw arrangement.

  1 to 3 show an embodiment of the present invention, and the mechanism other than the rotating stirring unit of the apparatus is the same as that of Patent Document 1 and will be described briefly.

  In FIG. 1, a movable frame 3 is installed on a fixed frame 1 installed on the floor so that one (left) end is supported by a fulcrum shaft 2 so that the tilt can be adjusted. A drum case 4 having a length L = 3 m and an inner diameter of about 550 mm is installed. A rotating shaft 7 is rotatably supported at the center of both ends of the drum case 4 via a bearing portion 6, and a motor 8 is connected to the right end of the rotating shaft 7, for example, rotating in a range of about 90 to 180 rpm. It is a mechanism to drive.

Three claw 9a on the outer periphery of the rotating shaft 7 to be described later, 9b, 9c is and lateral direction are arrayed through the nail spacing L ₃ is rotation processing body 11 is protruded radially configured spirally The In this example, the claw arrangement forms a right-handed spiral around the rotation shaft 7, and the processed material W that has been put in by rotating the rotation shaft to the right is conveyed to the left while being stirred by the claws 9a to 9c. Thus, the tip of the main claw (conveying claw) 9a is deformed in one direction and spreads flatly like the cultivating claw of a tractor or a tiller. Reference numeral 10 denotes a rectangular tube-shaped holder projecting on the outer periphery of the rotary shaft 7 in order to insert and fix the claws 9a to 9c so as to be replaceable.
A hopper 12 is installed above the right end (starting end) of the drum case 4, and one or a plurality of types of processed products W to be crushed, stirred, and the like are input from the hopper 12.

  Further, a cylindrical discharge port 13 is provided below the left end (end portion) of the drum case 4, and the agitated / conveyed processed product W is sent from the discharge port 13 to the next step. A semi-cylindrical lid 14 that is a part of the drum case 4 is detachably provided on the upper part of the drum case 4 to facilitate internal maintenance and attachment of the rotary processing body 11.

  When using the apparatus of the present invention, for example, when construction surplus soil is used for civil engineering work, these lump parts are pulverized when prepared by mixing clay, sand, crushed stone, etc. into the surplus soil according to the purpose of use. However, it is necessary to mix uniformly.

  For this reason, the claw attached to the rotating shaft 7 is provided with a large number of conveying claws 9a for conveying the lump of soil mainly from the input side to the discharge side while stirring. As shown in FIG. 1, FIG. 2 and FIG. 3 (A), the conveying claw 9a is a nut that curves in a mountain shape in the rotational direction, like a rotary claw generally attached to a rotary of a tractor or a tiller. Configured as a nail.

  That is, the conveying claw 9a is formed in a flat shape with a base end portion that is gradually flattened toward the tip and is curved to one side so as to push the soil in one direction by the rotation of the rotary 1. In the processing body 11, the conveyance claw 9a occupies most.

  On the other hand, during the claw arrangement at the position closer to the inside of the carry-in side (upstream side) end portion and the discharge side (downstream side) end portion of the rotation shaft 7, the conveyance claw 9a is bent in the direction opposite to the rotation axis direction. A deformed back claw 9b is provided. When the rotary processing body 11 rotates in the forward direction, the back claw 9b feeds the processed material to the rear side (actually, the conveyance object of the front and rear conveyance claws 9a is strong, so that the conveyance object is temporarily retained or the conveyance speed is reduced. The tip of the transport claw 9a is bent backward and forward, and is formed in a bilaterally symmetric shape (the same shape in a side view).

  Further, the flat claw 9c, which is another type of claw, is arranged adjacent to the upstream (introduction) side of the back claw 9b, and mainly rotates the conveyed product returned or retained in the reverse direction by the back claw 9b. Claw crushing by. The flat claw 9c is formed of a plate-shaped or strip-shaped flat plate, and edges on both front and rear sides are formed so that a lump or the like can be easily cut.

The tips of the claws 9a to 9c are arranged substantially concentrically, and a certain clearance S is formed between the outer periphery of the rotation processing body 11 constituted thereby and the inner periphery of the drum case 4, and the rotation processing body. 11 is removed by the stone or other granular material repelled by the claws 9a to 9c during pulverization and agitation.

Next, the arrangement | positioning of the said nail | claw 9a-9c in this invention is demonstrated based on FIG. 3 (A). In the illustrated example, the back claw 9b is provided with at least two back claws 9b adjacent to the position of the length L ₁ = 1000 mm from the conveying claw 9a of the starting end of the rotation processing body 11, and behind the back claw 9b. Is provided with one or two or three flat claws 9c adjacent to each other. On the other hand, the back claw 9b is similarly provided at the position of the length L ₂ = 800 mm from the conveying claw 9a at the end of the rotation processing body 11, and one or two or three adjacent flat claws 9c are provided on the upstream side. Is provided.

By providing the back claws 9b on the start end side and the end end side as described above, the treated material such as soil first stays on the start end side during the agitating and transporting at each position, and pre-treatment and preliminary grinding, to form a pre-treatment zone M ₁ to be agitated, the downstream side is treated more effectively by conveying claw zone portion of the processing area M ₂ finishing downstream addition is processed finishing in the stagnation zone, further downstream It is agitated and conveyed by the conveyance claw 9a on the side and discharged from the discharge port 13.

By this action, a processed product including cake-like dehydrated soil, large-sized soil clumps, etc., even if it is a drum case or rotating body having a relatively short length, is reliably crushed and uniformly stirred and mixed. In addition, there is a case where the flat claws 9c are not necessarily provided in a processed object that does not include a lump etc. that require cutting, and the combination, quantity, installation position, etc. of the back claws 9b and the flat claws 9c in the nail arrangement are can be adjusted appropriately with recombinant modified according to the nature and amount of processing or the like, pre-treatment zone M ₁ and finishing treatment zone M ₂ is a downstream position from below beginning side of the hopper 12, the terminal end side discharge port 13 It is desirable to arrange as many transport claws 9a as possible at least before and after the back pawls 9b and the flat claws 9c in order to arrange them at more upstream positions and ensure the transport of the processed material.

DESCRIPTION OF SYMBOLS 1 Fixed frame 4 Drum case 7 Rotating shaft 8 Motor 9a Conveying claw 9b Back claw 9c Flat claw 10 Holder 11 Rotation processing body 12 Hopper 13 Discharge port M ₁ Pretreatment area M ₂ Finishing treatment area

Claims (4)

A rotating shaft (7) is axially supported in a cylindrical drum case (4) for carrying in and discharging the processed product (W), and the processed product is forwardly rotated on the outer periphery of the rotating shaft (7). A large number of conveying claws (9a) whose tips are deformed so as to be conveyed and stirred in the feeding direction are arranged in a spiral pattern and arranged radially, and the processed material is rotated by rotating the rotating shaft (7) in the claw arrangement. A back claw (9b) whose tip is deformed in a direction opposite to the conveyance claw (9a) so as to stay or convey in the reverse feed direction and stir is arranged, and the back claw (9b) is arranged at the start end side of the claw arrangement in close proximity to the terminal end side it is provided in sequence conveying claw back and forth (9a) is arranged of the workpiece conveying direction of the sorting and back claws (9b) and, in the pawl arrangement, bending or torsional deformation in the lateral solid treatment comprising interposed flat pawl (9c) having a primarily pulverizing function of the workpiece (W) without Stirring device object.   The agitation device for a solid processed product according to claim 1, wherein one or two back claws (9b) are provided adjacent to each other between the plurality of conveying claws (9a) in the nail arrangement. The solid processed product according to claim 1 or 2 , wherein one to three flat claws (9c) are installed adjacent to the upstream side of the back claw (9b) and downstream of the conveyance claw (9a). Stirring device. The stirrer for a solid processed product according to any one of claims 1 to 3 , wherein the flat claws (9c) are formed in a flat plate shape and a vertically long plate.

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