JP3118769B2 - Circular fermenter stirring device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stirring device for a circular fermenter, and more particularly, to a device which is effective as a fermentation compost manufacturing facility.

[0002]

2. Description of the Related Art A conventional stirring apparatus for a circular fermenter has a swivel frame having a base supported on a central support of the circular fermenter, extending in a radial direction of the circular fermenter, and a tip mounted on an upper edge of the tank wall. The endless conveyor is hung and swirled, and the raw materials in the round fermenter are successively scraped up from the bottom of the tank with the stirring blades of the endless conveyor, then dropped backward and fermented uniformly. It is intended to be.

[0003]

The above-mentioned agitator converts a large endless endless conveyor for picking up a round fermenter filled with raw materials into a rotating frame extending from the center of the circular fermenter to the tank wall. Suspended and swivel. When foreign matter is mixed in the raw material and the stirrer fails, the foreign matter is removed to the periphery of the driven wheel at the lower end of the endless conveyor for scraping up when exchanging worn parts after long-term operation, periodic inspection, etc. Must be removed. It has to rely exclusively on human power, is physically painful and unsanitary, and takes 6-7 hours for two workers. The present invention eliminates the labor of the worker, keeps the safety, and also saves the cost.

[0004]

[Means to solve the problem] To repair and check the endless conveyer, which has been deeply penetrated into the raw material until it reaches the bottom of the tank at all times, it is common general knowledge that the endless conveyer, which is used for picking up, is circularly fermented. First, consider pulling it up from the tank. Contrary to that common sense, there are two reasons why a great deal of effort is required to scrape the raw material around the endless conveyer for scraping in the round fermenter.

The first reason is that the environment in which the circular fermenter is installed is not suitable for overhead traveling cranes and large cranes. The second reason is that the endless conveyer for picking up is about 4 m in length and width and is agitated in an interdigital manner. It is easy to be damaged because it has feathers.

As a result of the research, the present inventor has found that even if the height of the endless conveyer for picking up is 4 m, it is practically less than half that of the endless conveyor buried in the raw material. Wouldn't it be possible to attach a pulling device to the revolving frame that suspends the endless conveyor for picking up the blinds without it? We thought that it was more stable than hanging with a crane and less likely to damage the stirring blades. However, in order to realize this, the pulling device must be thoroughly reduced in weight so that excessive force is not applied to the tank wall and the turning frame.

As a result, an endless conveyor pulling-up device for a scooping device newly added to the revolving frame according to the present invention mainly comprises a pair of vertical guide frames and an elevating frame for mounting a stirrer. , A chain guide car, a multi-row chain car, a drive shaft, a drive motor, and other driving parts.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The stirring device for a circular fermenter according to the present invention has a base supported on a central support base of the circular fermenter and extends in a radial direction of the circular fermenter, and a tip of the circular fermenter is connected to an upper edge of the tank wall. The endless endless conveyor for picking up the stirrer is suspended and turned on the turning frame on which the stirrer is placed, and the raw materials in the circular fermenter are successively picked up from the bottom of the tank with the stirring blades of the endless conveyer for endless conveyor for picking up. In the stirring device for dropping and fermenting uniformly, the revolving frame is provided with a pair of vertical guide frames that stand and oppose each other at the inner and outer ends of the revolving portion excluding the pivot portion, and the agitator is attached to the revolving frame. It is characterized by comprising an elevating frame mounted horizontally between the guide frames, and an elevating drive mechanism for elevating the elevating frame while maintaining a horizontal posture along the vertical guide frames.

The lifting drive mechanism is provided at each of the chains suspending the four corners of the lifting frame, at the upper left and right chain guide wheels of the vertical guide frames, and at the side edges of the two vertical guide frames. A multi-strip car for hoisting and lowering the elevating frame via the left and right chain guide wheels of the vertical guide frame, and the multi-strip chain car provided between the side edges of the vertical guide frames. And a drive motor for rotating the drive shaft.

[0010]

1 to 3 show one embodiment of the present invention. FIG.
Is a vertical cross-sectional view of a half of a circular fermenter, where the tank wall is A and the tank bottom is B
And A well-known structure in which a center support stand 1 stands at the center (left end in the figure) of the circular fermenter, and a shaft support 2a of a revolving frame 2 for a stirrer is supported at the upper end thereof.
Details are omitted.

Conventionally, the endless conveyer 3a for picking up the agitator 3 is directly attached to the beam of the revolving frame 2 for the agitator.
It is attached to the beam portion 4a of the lifting frame 4 placed on the top. In this example, the endless conveyer 3a is used for
Set is arranged.

2 and 3, the well-known revolving frame 2 for the stirrer is a rectangular frame whose longitudinal direction is the radial direction of the tank wall A, and the base side of which is supported on the above-mentioned central support table 1 by a shaft support. 2a is pivotally supported, and the tip is mounted on a rail R on the tank wall A. As shown in FIG. 2, the wheels mounted on the rail R and the legs 2b with the drive motors 2c protrude from the left and right ends of the tip of the revolving frame 2 for the stirrer.

[0013] The two sets of endless conveyors 3a for picking up the interdigital drive are driven by respective agitating motors 5 to make a chain wheel 5
The drive wheel 6 at the upper end of the endless conveyor 3a for picking up is rotatably driven through the chain 5a, 5b and the chain 5c. As a result, the agitating blades 8 connected in an interdigital manner circulate between the driving wheel 6 and the driven wheel 7 to scrape the front raw material from near the tank bottom B,
This is a well-known structure provided with an inclined plate 9a for gradually moving forward after dropping on the rear chute 9 and for moving the raw material gradually from the outside to the inside of the circular fermenter.

According to the present invention, the whole of the stirrer 3 is attached to the newly installed lifting frame 4 and is mounted on the revolving frame 2 for the stirrer. Ascending position 3 shown by the dashed line
The feature is that it is pulled up to a '. As a mechanism for this purpose, first, the shaft support 2a of the revolving frame 2 for the stirrer is used to guide the raising and lowering of the lifting frame 4 with the interdigital conveyor 3a for picking up, the rear chute 9 and the motor 5 for stirring. A pair of vertical guide frames 10, 10 facing each other while standing at the inner and outer ends of the turning portion except for the vertical guide frame 1
An elevating drive mechanism for elevating the elevating frame 4 along 0, 10; in the example shown, each chain 11 suspending four corners of the elevating frame 4, the upper and lower chain guide wheels 12 of each vertical guide frame 10, each vertical guide Right and left chain guide wheels 12 of the vertical guide frame 10 at the side edges of the frames 10, 10.
Hoisting and lowering the lifting frame 4 through
3, a drive shaft 14 that is provided between the side edges of the vertical guide frames 10 and 10 and that is shared by the multi-row wheels 13 and a drive motor 15 that drives the drive shaft 14 to rotate.

The most characteristic feature of the present invention is that the endless conveyer 3a for picking up a circular fermenter can be automatically pulled up on the revolving frame 2 for the stirrer to a required height at any time. However, the above-mentioned lifting drive mechanism has contributed greatly to the realization of this concept. 4 to 8 which show only the lifting drive mechanism will be described in detail in comparison with FIGS. All part codes are common. 4 to 8 are explanatory diagrams, which are simply drawn.
Some are slightly different.

FIGS. 4 to 7 show only the lifting / lowering drive mechanism on the revolving frame 2 for the stirrer. FIG. 8 also omits the revolving frame 2 for the stirrer and the vertical guide frames 10 to make it easier to see. Conventionally, the stirrer 3 attached to the rotating frame 2 for the stirrer is attached to the lifting frame 4. FIGS. 4 and 5 show the elevator frame 4 in a normal position where the elevator frame 4 is mounted on the agitator revolving frame 2, and FIGS. 6 and 7 show the elevator frame 4 in a position where the elevator frame 4 is pulled up for repair and inspection.

The normal state is inaccurate in FIGS.
This will be described first with reference to FIGS. The elevating frame 4 is a rectangular frame whose short sides on both sides are mounted on the short sides of the revolving frame 2 for the stirrer as shown in FIG. 1 and are stable. Elevating guide rollers 4b are attached to the left and right outer surfaces of both short sides of the elevating frame 4, and are brought into contact with the inside of the left and right pillar portions of the portal-shaped vertical guide frame 10. A durable beam portion 4a that can withstand the weight of the stirrer 3 is passed between both short sides of the lifting frame 4. The beam part 4a
Endless conveyor 3a for picking up on both end plates 4c
The stirrer bracket 3b to which the driving wheel 6 of FIG.
Mounted through. The adjusting section 3c is for adjusting the distance between the driving wheel 6 and the driven wheel 7 of the endless conveyor 3a for picking up the interdigital conveyor.

The lifting operation of the lifting frame 4 will be described with reference to FIGS.
Is easier to understand. FIGS. 4 and 5 show a state in which the lifting frame 4 is slightly pulled up. This is because the heavy lifting frame 4 on which the stirrer 3 is mounted is stably kept horizontal by one drive motor 15 and pulled upward. increase. The outer frame of the elevating frame 4 is rectangular, and the short sides on both sides thereof move up and down by lightly contacting and separating from the pillars of the vertical guide frames 10 on both sides, and as described above, the elevating guide rollers 4b have the same vertical guide frame. Since the inside of the pillar portion 10 is turned, the vertical movement of the lifting frame 4 can be controlled by the vertical guide frames 10 alone.

The lifting drive mechanism described below keeps the lifting frame 4 horizontal while moving it up and down. Stirrer 3
The lifting frame 4 marked with is suspended at four corners by four chains 11. Each chain 11 is hanged on a multi-row chain wheel 13 by changing the direction from vertical to horizontal by a chain guide wheel 12 on the upper left and right sides of a vertical guide frame 10 on both sides, and hanging from the same, two common counterweights. (Counter weight) 16. As can be clearly seen in FIG. 8, the multi-row chain wheel 13 lifts and lowers the chain 11 two by two.

The two multi-row wheels 13 for winding the four chains 11 are driven by one common drive shaft 14, and the drive shaft 14 is driven to rotate by a drive motor 15. The drive motor 15 is mounted on the outside of one of the vertical guide frames 10, and one end of a drive shaft 14 provided between the side edges of the vertical guide frames 10 on both sides is rotationally driven by a chain or a belt. The drive shaft 14 drives a passive chain wheel 13a directly connected to each multi-row chain wheel 13 by fixed chain wheels at both ends.

As described above, four chains 11 are pulled up and down by the drive motor 151 under the same conditions, and two counterweights 16 of the same weight are used. I have. Therefore, the four chains 11 are always hoisted and lowered by the same force and the same distance, and the elevating frame 4 always moves up and down while maintaining a horizontal posture.

Although one embodiment has been described above, it goes without saying that the present invention can be variously changed and applied depending on the working conditions without changing the gist thereof. The raising / lowering drive mechanism may be hydraulic instead of a chain. In short, any mechanism may be used as long as it raises / lowers the raising / lowering frame along a pair of vertical guide frames on the rotating frame for the stirrer. In addition, the lifting distance of the lifting frame 4 does not need to be such that the lower end of the endless conveyor 3a for scraping is made out of the circular fermenter in practical use.
In this embodiment, the ascent / descent distance is 1 m in a tank having a depth of 2 m.

[0023]

EFFECTS OF THE INVENTION An endless endless conveyor for picking up a stirrer rotating in a circular fermenter usually has a length and width of 4 m, and has a complicated structure with a large number of stirring blades. Withdrawal outside or above the fermenter was not considered. The present invention breaks this common sense, and has attained the idea of pulling up the endless conveyor at least to the point where the endless conveyor for scraping can be repaired and inspected.

That is, the stirrer is repaired by a simple structure in which a pair of vertical guide frames are opposed to the conventional turning frame, and the elevating frame provided with the stirrer is laid between them, and an elevating drive mechanism is added thereto. Automatically ascending and descending from the inside of the round fermenter to the extent necessary for inspection. The lifting drive mechanism was able to raise and lower the lifting frame while maintaining a horizontal posture with four chains, two multi-row wheels, a drive shaft, and one drive motor hanging four corners of the lifting frame. . According to the present invention, it has been possible to eliminate the labor and uneconomics of the operator who conventionally required 6 to 7 hours to remove the raw materials around the endless conveyer for entering the round fermenter into the round fermenter. The effect is enormous.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a main part of a fermenter equipped with one embodiment of the present invention.

FIG. 2 is a side view of a main part of FIG.

FIG. 3 is a plan view of FIG. 1;

FIG. 4 is an elevational explanatory view of the lifting drive mechanism of the embodiment of FIG. 1 in a normal state;

FIG. 5 is an explanatory side view of FIG. 4;

FIG. 6 is an elevation explanatory view when the lifting frame of FIG. 4 is raised.

FIG. 7 is an explanatory side view of FIG. 6;

FIG. 8 is an explanatory perspective view of a lifting drive mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Central support stand 2 Stirrer's revolving frame 2a Shaft support part 3 Stirrer 3a Raising interdigital endless conveyor 4 Lifting frame 8 Stirrer blade 10 Vertical guide frame 11 Chain 12 Chain guide wheel 13 Multi-chain wheel 14 Drive shaft 15 Drive motor

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ identification code FI C05F 9/02 C05F 9/02 C C12M 1/02 C12M 1/02 A (58) Fields surveyed (Int.Cl. ⁷ , DB Name) C05F 3/06 C05F 7/00 C05F 9/02 B01F 13/00 B09B 3/00 C02F 11/02 C12M 1/02

Claims (2)

(57) [Claims] 1. A round endless endless stirrer for a stirrer mounted on a swivel frame whose base is supported on a central support of a circular fermenter and extends in the radial direction of the circular fermenter and has a tip mounted on the upper edge of the tank wall. In a stirring apparatus, the conveyor is suspended and swirled, and the raw materials in the circular fermenter are sequentially scraped from the tank bottom by the stirring blades of the endless conveyer, and dropped backward to uniformly ferment. The frame is composed of a pair of vertical guide frames that are opposed to each other while standing at the inner and outer ends of the revolving portion excluding the shaft support portion, and the stirrer is attached, and the elevating frame horizontally mounted between the two vertical guide frames of the revolving frame, An elevating drive mechanism for raising and lowering the elevating frame while maintaining a horizontal posture along the vertical guide frames, and a stirrer for a circular fermenter. 2. The apparatus according to claim 1, wherein the lifting drive mechanism comprises: a chain that hangs four corners of the lifting frame; On the side edge of the vertical guide frame,
A multi-section chain car that hoists and lowers the lifting frame via the left and right chain guide wheels of the vertical guide frame,
A stirring device for a circular fermenter, comprising: a drive shaft shared between the two multi-row wheels provided between the side edges of the vertical guide frames; and a drive motor for rotating the drive shaft. .