JPH0910569A - Mixing device - Google Patents

Abstract

PURPOSE: To provide a device in which even fiber material is uniformly mixed. CONSTITUTION: In a mixing device 10, a raw material M is fed from a raw material feed port 13 into the vessel 12 of a mixing machine 11. The raw material M is agitated and mixed by agitating blades 16 in a floating state in the vessel 12 without compacting and pressing the raw material M. The raw material M is accumulated on a receiving conveyor 17 through an opening part 14 of the bottom of the vessel 12 and allowed to fall from the end in the feeding direction of the conveyor 17 to the receiving port 19 of a circulation route 20 and sucked. The raw material M is circulated to the vessel 12 by a blower 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixing apparatus used when, for example, fibers are mixed with a binder powder for binding the fibers.

[0002]

2. Description of the Related Art As shown in FIG. 3, a conventional mixer (1) has a motor (5) in a container (2) having an inlet (3) at the top and an outlet (4) at the bottom. The stirring blade (6) that is rotated by is inserted, and the upper inlet (3)
The raw material M is charged into the container (2) from the above, the stirring blade (6) is rotated by the motor (5) to mix the raw material M, and the obtained mixture is taken out from the outlet (4).

[0003]

In the conventional mixer described above, when one component of the raw material M is a fiber material, the raw material M is compacted during stirring and mixing, and the fiber material is formed into a thread shape. Were easily entangled with each other, and uniform mixing was difficult.

[0004]

As a means for solving the above-mentioned conventional problems, the present invention provides a raw material inlet (13) at the upper part of a container (12) having an opening (14) at the bottom. Further, a mixer (11) in which a stirring blade (16) is inserted, and the mixer (11)
A receiving conveyor (17) arranged directly below, a receiving port (19) arranged immediately below the end of the receiving conveyor (17) in the feeding direction, the receiving port (19) and a container (12) of the mixer (11) ) A mixing device (10) comprising a circulation path (20) communicating with the upper part, a blower (21) interposed in the circulation path (20), and an outlet (22) branched from the circulation path (20). Is provided.

[0005]

[Function] The raw material M is charged from the raw material charging port (13) of the container (12) and the stirring blade (16) is rotated. The raw material M is a container (12)
It will not be consolidated because it falls in the air in the air and is mixed with stirring. The mixed raw material M is opened at the bottom of the container (12).
(14) is sequentially deposited on the receiving conveyor (17), from the end of the receiving conveyor (17) in the feeding direction to the receiving port (1) of the circulation path (20).
It is dropped and sucked into 9), is returned to the container (12) from the circulation path (20) by the blower (21), and is stirred and mixed. Such circulation of the raw material M is repeated a predetermined number of times, and when almost completely mixed, the mixture is taken out from the take-out port (22) branched from the circulation path (20).

[0006]

FIG. 1 shows a first embodiment of the present invention. In the mixing device (10) shown in the figure, (11) is a vertical mixer, the mixer (11) is provided with a raw material inlet (13) at the upper end and an opening (14) at the bottom. A container (12) and a stirring blade (16) which is rotated by a motor (15) supported by a stay (15A) at the upper end of the container (12) and vertically inserted into the container (12). And the stirring blade (16) has a rotating shaft (16A),
The lower wing (16B) and the upper wing (16C) attached to the lower end and the upper part of the rotating shaft (16A), and the side bar connecting the lower wing (16B) and the upper wing (16C) at the end. (16D), and the rotating shaft (16A) is connected to the motor (15).

(17) is a receiving conveyor, the receiving conveyor (17) is provided with a large number of ridges (17A) on the surface, the receiving conveyor (17) is a container of the mixer (11) It is arranged just below the bottom opening (14) of the (12), circulates in the direction of arrow (a), and is sealed by a cover (18).

At the end of the cover (18), a receiving port (19) is provided on the lower surface, a circulation path (20) is connected to the receiving port (19), and the circulation path (20) is further connected. Is provided with a blower (21), and an outlet (22) is branched from the circulation path (20), and a valve (at the rear side of the branch point of the outlet (22) of the circulation path (20) ( 20A), a valve (22A) is also attached to the outlet (22), and the other end of the circulation path (20) is connected to the container (1).
Contact the top of 2).

The raw material inlet (13) of the container (12) has a blower (2
3) and the raw material supply route (24) through which the valve (24A) intervenes, and the raw material supply route (24) and the inside of the cover (18) of the receiving conveyor (17) communicate through the valve (25A). And a passageway (25), and a valve (26A) is interposed between the rear side of the valve (20A) of the circulation path (20) and the front side of the blower (23) of the raw material supply path (24). Contacted by (26).

In the mixing device (10), fiber materials such as pulp, waste paper pulp, synthetic fibers and natural fibers are mixed with a binder for binding the fiber materials. When mixing, first open the valves (24A, 26A) and then the valves (20A, 25A
A) is closed and the blower (23) is activated, and the raw material supply path (24)
A predetermined amount of the raw material M is charged into the container (12) through the raw material charging port (13). Then close (22A, 24A, 26A) and valve
(20A, 25A) and open the motor (15) to drive the stirring blade (1
Rotate 6) and activate the receiving conveyor (17).
The raw material M falls in the container (12) in a floating state in the air, and is stirred and mixed by the stirring blade (16). The mixed raw material M is received from the opening (14) at the bottom of the container (12).
(17) is successively deposited on the ridges (17A) and held between the conveyors (17) in the feed direction from the end to the receiving port (19) to be sucked,
The blower (21) returns it into the container (12) of the mixer (11) through the circulation path (20). The raw material M is circulated a predetermined number of times until it is almost completely mixed, and then the valve (20A) is closed and the valve (22A) is opened to take out the mixture from the outlet (22).

FIG. 2 shows another embodiment. In this embodiment, the mixer (11) is a horizontal mixer, a motor (15) is attached to one end of the container (12) via a stay (15A),
The stirring blade (16) connected to the motor (15) is laterally inserted in the container (12), and has a raw material inlet (13) with a damper (13A) at the upper end and a circulation path (20). Contact and opening at the bottom
(14) is provided. Also in this embodiment, the materials are mixed in the same manner as in the previous embodiment.

[0012]

According to the present invention, since the materials are not consolidated during mixing, even fibrous materials can be uniformly mixed without forming a string.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of another embodiment.

FIG. 3 is an explanatory view of a conventional example.

[Explanation of symbols]

 10 Mixing device 11 Mixer 12 Container 13 Raw material inlet 14 Opening 15 Motor 16 Stirring blade 17 Receiving conveyor 19 Receiving port 20 Circulation path 21 Blower 22 Outlet

Claims (1)

[Claims] 1. A mixer in which a raw material inlet is provided at the top of a container having an opening at the bottom, and a stirring blade is further inserted therein, a receiving conveyor arranged immediately below the mixer, and the receiving conveyor. A receiving port disposed immediately below the end of the feed direction, a circulation path connecting the receiving port and an upper part of the container of the mixer, a blower interposed in the circulation path, and an outlet branching from the circulation path. Mixing device characterized by