JP2000210548A - Biaxial type continuous mixer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a biaxial type continuous mixer applicable for various purposes of mixing and pulverizing various types of materials. SOLUTION: Two parallel mixing shafts 3, 3' rotating in mutually opposed directions are installed in a mixing tank 2 provided with a charge inlet 15 in one side and a discharge outlet 16 in the other end side. Mixing arm installation pieces 9 are radiately attached to the mixing shafts 3, 3' at prescribed intervals along the mixing shaft 3, 3'. Mixing arms 10 having mixing blades 12 at the tip parts are attached to the respective mixing arm installation pieces 9 in a freely detachable manner and the mixing shaft 3, 3' are enabled to rotate reversibly in normal and reverse directions. Mixing blades with different shapes such as mixing blades for pulverization and mixing blades for mixing are made ready and properly replaced corresponding to the use purpose of such as pulverization or mixing treatment and the rotating direction of the mixing blades 12 is changed to an arbitrary direction, normal or reverse direction, to carry out pulverization and mixing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to the present invention, for example, for crushing clumps such as dewatered cakes obtained by dewatering mud with a dewatering machine, or mixing a solidified material while crushing clumps. Also, the present invention relates to a twin-screw continuous mixer used for crushing and mixing various materials, such as mixing a solidifying material or the like with mud or fly ash.

[0002]

2. Description of the Related Art Conventionally, various materials have been mixed and pulverized using a twin-screw continuous mixer. Mixing blades having a shape suitable for the material to be handled are attached. In the case of mixing, the direction of rotation of the blade is also lifted upward from the bottom of the mixing tank at the center of the mixing tank and rotated to facilitate mixing, and in the case of crushing, the mixing blade is rotated in the opposite direction to the mixing. The shape and rotation direction of the mixing blades are determined according to the application, for example, the material lifted by the mixing blades is pressed against the inner wall of the mixing tank and crushed.

[0003]

However, this type of twin-screw continuous mixer has the opportunity to handle mixing and crushing of various materials, but has only one function of mixing but not crushing. There are various problems when trying to use it for a variety of uses, for example, it is difficult to mix or disintegrate materials having different properties due to a problem in the shape of the mixing blade. In addition, if a dedicated mixer is separately prepared, it is often uneconomical in consideration of the frequency of use.

[0004] In view of the above, it is an object of the present invention to provide a biaxial continuous mixer that can be used for various purposes such as mixing and crushing of various materials.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a mixing tank having an input port at one end and a discharge port at the other end. A mixing arm is provided on the mixing shaft at predetermined intervals and radially along the mixing shaft, and a mixing arm having a mixing blade at a tip is detachably attached to the mixing arm mounting piece. On the other hand, the mixing shaft is rotatable in both forward and reverse directions.

[0006] The mixing shaft is characterized in that it is divided near both wall surfaces in the mixing tank and is detachable.

[0007]

According to the biaxial continuous mixer according to the present invention, the mixing arm having the mixing blade can be freely attached to and detached from the mixing arm mounting piece of the mixing shaft, and the mixing shaft can be rotated in either forward or reverse direction. The rotation direction of the mixing shaft and the shape of the mixing blade can be changed depending on the purpose of mixing and crushing of various materials.For example, when mixing materials, the rotation direction of the mixing blade is The material is lifted upward from below at the center of the mixing tank and rotated in a direction to mix the materials (hereinafter referred to as forward rotation). For this reason, the mixing blade is also formed in a shape suitable for the material to be mixed, and is attached to the mixing arm mounting piece of the mixing shaft at an angle such that the material is sent to the discharge side of the mixing tank by forward rotation.

[0008] Further, when crushing a lump, the rotating direction of the mixing blade is made to rotate in the opposite direction to the mixing (hereinafter, referred to as reverse rotation), and the material lifted by the mixing blade is removed from the inner wall of the mixing tank. A mixing blade or the like having a shape that exerts a crushing action by pressing against the surface is adopted, and is attached to the mixing arm mounting piece of the mixing shaft at an angle such that the material is sent to the discharge side of the mixing tank by reverse rotation.

As described above, the mixing blades can be appropriately replaced according to the properties of the material and the use of mixing and crushing, and the rotation direction of the mixing shaft can be rotated in either forward or reverse direction. Thus, it is possible to cope with various uses such as mixing and crushing of various materials, and it becomes economical.

Further, if the mixing shaft is divided near both wall surfaces in the mixing tank so as to be detachable, the mixing shaft can be detached from the mixing tank and a suitable mixing blade can be easily attached to the mixing arm mounting piece of the mixing shaft. If the mixing shaft having another mixing blade is prepared and replaced, the replacement time is shortened and the maintenance is facilitated.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a biaxial continuous mixer for mixing a solidified material or the like into mud, fly ash, or the like, or breaking up a lump such as a mixed dewatered cake. Mixing axis 3,
3 ′, and is rotatably supported by a bearing 5 fixed to a support 4 of the mixing tank 2.

Gears 6, 6 'are provided at one end of the mixing shafts 3, 3'.
Are mounted and fixed, and the respective gears 6, 6 'are meshed to rotate the mixing shafts 3, 3' at a synchronous speed. Driving motors 8 and 8 'are attached to the other ends of the mixing shafts 3 and 3' via a speed reducer 7, and the mixing shafts 3 and 3 'are rotated by driving the driving motors 8 and 8'. I have to.

As shown in FIGS. 3 to 5, a mixing arm mounting piece 9 having a substantially U-shaped cross section is fixed to the mixing shafts 3 and 3 ', as shown in FIGS. Is provided with a through hole 11 for attaching the base of the mixing arm 10.

As shown in FIGS. 6 and 7, the mixing arm 10 has a mixing blade 12 attached to a tip end thereof, and a base of the mixing arm 10 has a shape which can be fitted to a substantially U-shaped portion of the mixing arm mounting piece 9. At the same time, a through-hole 13 corresponding to the through-hole 11 is provided, and the base of the mixing arm 10 is fitted into the substantially U-shaped portion of the mixing arm mounting piece 9, and the through-hole 11.
13 are fitted in the insertion shape and fastened by bolts and nuts 14. In addition, the mixing arm 10 in which the shape and the mounting angle of the mixing blade 12 are changed according to the use is appropriately prepared, and is appropriately replaced according to the use.

Reference numeral 15 denotes an input port for inputting a material, which is disposed above the driving motors 8 and 8 'of the mixing tank 2.
Reference numeral 16 denotes a discharge port for discharging the material, which is provided at a lower portion of the mixing tank 2 on the side opposite to the driving motors 8 and 8 ', and the material input from the input port 15 stays in the mixing tank 2 for a predetermined time. After that, the paper is discharged from the discharge port 16.

However, when the bulk material is pulverized by the above-described biaxial continuous mixer, the pulverization mixing is performed so as to be parallel to the mixing axes 3, 3 'as shown in FIGS. Feather 1
As shown in FIGS. 2a, 10 and 11, a mixing arm 10 having a crushing mixing blade 12b attached to the tip at a mounting angle with respect to the mixing arm 10 inclined downward and to the right in plan view.
To the mixing arm mounting pieces 9 of the mixing shafts 3 and 3 '.

The crushing mixing blades 12a and 12b are shown in FIG.
When rotated in the direction of the arrow shown in FIG.
The mixing blade 12a presses the lump against the wall surface of the mixing tank 2 to disintegrate it, and the mixing blade 12b acts so as to be sent out toward the discharge port 16.

When various materials are mixed, FIG.
2. As shown in FIG. 13, the mixing blade 12c for material mixing, which is inclined downward and to the left in plan view, is mounted on the mixing arm mounting piece 9 of the mixing shafts 3 and 3 '. This mixing blade 12 for mixing materials
When c is rotated in the direction of the arrow shown in FIG. 15, that is, in the forward rotation direction, the materials are fed toward the discharge port 16 while being mixed by the left and right mixing blades 12c at the center of the mixing tank.

As described above, if the mixing blade 12 is appropriately replaced depending on the material or application to be handled, and the rotation direction of the mixing blade 12 is also changed in the normal or reverse direction, the mixing of various materials can be performed by one single-shaft continuous mixer. In addition, the crushing process can be performed, and economical utilization can be achieved.

The mixing shafts 3 and 3 'are divided near both wall surfaces in the mixing tank 2 as shown in FIG. 16 and fastened by bolts and nuts 18 via flanges 17 so as to be detachable. Thus, the mixing shafts 3 and 3 'can be detached from the mixing tank 2 and the appropriate mixing blades 12 can be easily mounted on the mixing arm mounting pieces 9 of the mixing shafts 3 and 3'. If the mixing shafts 3 and 3 'to which the other mixing blades 12 are attached are prepared and replaced, the replacement time is shortened and the maintenance is facilitated.

[0022]

As described above, in the two-shaft continuous mixer according to the present invention, the two mixing tanks having the input port at one end and the discharge port at the other end are rotated in opposite directions. A parallel mixing shaft is provided, and a mixing arm mounting piece is provided on the mixing shaft at predetermined intervals and radially along the mixing axis, and a mixing arm having a mixing blade at a tip is provided on the mixing arm mounting piece. In addition to being removable, the rotation direction of the mixing shaft can be freely rotated in both forward and reverse directions, so that the mixing blades of a single biaxial continuous mixer can be replaced as appropriate according to the application, and the rotation of the mixing shaft can be changed. It can be rotated in any direction, either forward or reverse, and it is economical to use a single biaxial continuous mixer for various purposes such as mixing and crushing of various materials.

Further, since the mixing shaft is divided near both wall surfaces in the mixing tank and is detachable, the mixing shaft can be detached from the mixing tank and a suitable mixing blade can be easily attached to the mixing arm mounting piece of the mixing shaft. If you prepare a mixing shaft with another mixing blade and replace it,
Replacement time is shortened and maintenance is facilitated.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a two-axis continuous mixer according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is an enlarged view of a mixing arm attachment piece part of FIG. 1;

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a side view of FIG.

FIG. 6 is a front view showing a mixing arm having a mixing blade at a tip.

FIG. 7 is a perspective view showing an embodiment in which a mixing arm for crushing is attached to a mixing arm attachment piece.

FIG. 8 is an explanatory view showing one embodiment in which a mixing arm for crushing is attached to a mixing arm attachment piece.

FIG. 9 is a side view of FIG.

FIG. 10 is an explanatory view showing an embodiment in which another mixing arm for crushing is attached to a mixing arm attachment piece.

FIG. 11 is a side view of FIG. 10;

FIG. 12 is an explanatory view showing one embodiment in which a mixing arm for mixing materials is attached to a mixing arm attachment piece.

FIG. 13 is a side view of FIG.

FIG. 14 is an explanatory diagram showing a state where a mixing arm for crushing is rotated.

FIG. 15 is an explanatory diagram showing a state where a mixing arm for mixing materials is rotated.

FIG. 16 is an enlarged view showing a divided portion of a mixing shaft in a mixing tank.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Biaxial continuous mixer 2 ... Mixing tank 3, 3 '... Mixing shaft 9 ... Mixing arm mounting piece 10 ... Mixing arm 11 ... Through hole 12 ... Mixing blade 13 ... Through hole 14 ... Bolt nut 15 ... Input port 16 ... Vent

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4G056 CC07 CC39 CD01 CD11 CD17 4G078 AA30 BA01 BA07 CA15 DA01 DB02 DC10 EA05 EA10

Claims (2)

[Claims] A mixing tank having an input port on one end and a discharge port on the other end is provided with two parallel mixing shafts rotating in opposite directions, and a mixing arm mounting piece is provided on the mixing shaft. Are arranged at predetermined intervals along the mixing shaft, and a mixing arm having a mixing blade at the tip is made detachable to the mixing arm mounting piece, and the rotation direction of the mixing shaft is freely rotatable in both forward and reverse directions. A biaxial continuous mixer, characterized in that: 2. The two-shaft continuous mixer according to claim 1, wherein said mixing shaft is detachable by being divided near both wall surfaces in the mixing tank.