JPS5955394A - Method and device for fermentation treatment of domestic animal dung, sludge or the like - Google Patents

Abstract

PURPOSE:To obtain a fermentation treatment device which enables a continuous fermentation treatment, by using the domestic animal dung, sludge, etc. which are beforehand adequately agitated, and dried as a fermentation base, and spraying the untreated domestic animal dung, sludge, etc. on the base and performing the fermentation treatment under agitation. CONSTITUTION:A supply device 20 for material to be treated in beforehand moved to one end side of rails 3 and the untreated material contg. 85-95% water content is carried and collected on the floor surface 2 between the rails 3 and 3, whereafter an agitator 4 is moved back and forth, then the agitation rods 8 projected to a shaft 9 rotate with the traveling of the agitator 4. Since the material is repeatedly agitated many times, the material is finally dried and treated by solar heat and fermentation. After a fermentation base 14a is formed, the agitator 4 is positioned to one end side of the rails 3, 3 and the device 20 is run back and forth to spray the material 14 on the base 14a. The device is then moved back and forth along the rails 3, 3 whereby the fermentation treatment is effected.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method and an apparatus for continuously drying raw excrement, sludge, etc. (hereinafter referred to as treated material) having a high moisture content.

Conventionally, the materials to be processed are dried by sending them into a drying chamber using artificial heat, but this requires fuel such as heavy oil, and this method requires high equipment costs and has limited processing capacity. However, there are disadvantages such as the need to expand the equipment in order to increase processing capacity.

Therefore, the present inventor has already proposed an agitating fermentation processing apparatus that performs fermentation processing while stirring the processed material.

This is, for example, as shown in FIGS. 1 to 3.

In the same figure, 1 is a drying room made of a synthetic resin sheet such as vinyl, and is equipped with ventilation windows that can be opened and closed at appropriate places and a ventilation system.The floor of the drying room 1 is made of concrete. Then, rails 3, 3 are laid on the concrete 2 in the longitudinal direction or in an endless manner.

4 is a stirring device that moves on the rail 3.3;
．． Wheels 5, 5 and 6, 6 running on the wheels 3 are rotatably mounted, a cover frame 7 is mounted on the wheels 5, 6, and a large number of stirring rods 8 are protruded radially from the cover frame 7. A drive source, for example a motor 10, is attached to the shaft 9, on which one of the wheels 5.6, for example, the wheel 5.5 and the stirring rod 8 are protruded radially.
The rotation of the shaft 9, on which the driving wheels 5 and stirring rods 8 are radially protruded, is controlled by limit switches 12.12 provided at both ends of the rail 3.3.
, 13.13 automatically selects each motor 1 [1, it
By reversing the rotation of forward and reverse, it moves reciprocally on the rails 3 and 3, and becomes a pair in forward and backward movements.
Furthermore, the motor 11 that rotates the shaft 9 can be opened and closed by a limit switch 13.13 that switches between forward and reverse rotation. The shaft 9 only rotates.
It is also possible to rotate in only one direction.

If the rails 3, 3 are provided endlessly, the configuration of the limit switches 12, 13 is changed as appropriate.

Therefore, the stirring device #4 is driven by the wheels 5 driven by the motor 10.
is switched by a limit switch 1212 and reciprocates on the rail 3.3. Along with this reciprocating movement, the rotation of the shaft 9 mounted on the cover frame 7 is also reversed between forward and backward movements by the limit switch 13, so that the water content between the rails 3 is 85 to 9
If a 5% untreated material 14 is installed in the device, the stirring rods 8 protruding radially from the shaft 9 will repeatedly stir the material 14 many times, and eventually it will be dried by solar heat or fermentation. It is processed.

Therefore, the limit switch 1 of the motor 11 for rotating the shaft 9
3 is opened, rotation is stopped during backward movement, and the stirring rod is rotated only in a certain direction during forward movement, the processed material 14 is stirred by stirring rod 8 while being sent to one end side of rail 3. Since the waste is taken out, a bag or the like is provided at the exit, or a belt conveyor or the like is provided for carrying out, and the waste is automatically collected.

However, even if the fermentation process is carried out using such an agitating fermentation processing apparatus, if the processed product with a water content as high as 85 to 95% is directly agitated, fermentation will not occur and even the first agitation will not be possible. Therefore, it takes a long time to complete the process.

However, the optimum condition for aerobic fermentation of the processed material is a moisture content of 6.
5% - For processed materials with a moisture content of 85 to 95%, it is better to add sawdust, dried feces, etc. to adjust the moisture content. This will promote aerobic fermentation and allow stirring from the beginning, so it will be faster. We discovered that it can be dried.

However, when adding sawdust, dried manure, etc., these additives must be stored, and the cost of obtaining the storage space and sawdust, etc., is also required. It is also not possible to automatically import and process materials from other sources.

In view of these points, the present invention aims to solve the above-mentioned drawbacks and provide a method and apparatus for fermentation of processed materials that can perform continuous fermentation. The first invention is characterized in that a fermentation base is made of livestock excrement, sludge, etc., and that untreated livestock excrement, sludge, etc. is sprinkled on the fermentation base, and then subjected to a stirring fermentation treatment, and a rail is laid on the floor surface. , a stirring fermentation processing apparatus having a stirring device on the rail, and a processing material supplying device having a hopper and a processing material dropping device provided at the bottom opening of the hopper, which are freely movable;
Prepare livestock manure, sludge, etc. that have been dried in advance along the rail as a fermentation base, and after spreading unprocessed livestock manure, sludge, etc. on the fermentation base using the treated material supply device, perform the stirring fermentation treatment. This invention relates to a second invention characterized in that the stirring fermentation process is carried out using an apparatus.

In the fermentation process of processed materials, the most important thing is moisture adjustment, and the appropriate moisture content in aerobic fermentation is around 65%. Therefore, in the present invention, when the fermentation base is first made, the water content of the processed material is very high at 85% to 95%, so moisture adjustment is required, but once it is made and shaken,
Continuous fermentation can be carried out simply by scattering the treated material onto the fermentation base and stirring. This is because even if the treated product is spread over the fermentation base, the overall moisture content does not become high enough to interfere with the fermentation conditions. For example, moisture content 60%, thickness 0.6
The processed product with a moisture content of 85% is placed on the fermentation base of 2 m thick to a thickness of about 2 m.
At zero application, the total moisture content increases by only about 0.8%. Therefore, taking into consideration the moisture content and amount of the fermentation base, the moisture content of the treated material, etc., the spraying I is adjusted so that the overall moisture content does not rise too much.

4 to 7 show embodiments of the present invention,
In the figure, the same reference numerals as in FIGS. 1 to 3 indicate the same parts, so the explanation of those parts will be simplified.

Reference numeral 4 denotes a stirring device running on a rail 3.3, on which a shaft 9 with a large number of stirring rods 8 protruding radially is mounted, and rotates as the stirring device 4 runs to stir the processed material 14. Since it is the same as that shown in Figure 1, the stirring rod 8, etc. that protrude radially from the shaft 9 are omitted in the figure (see Figures 1 to 3).
.

20 is a processing material supply device running on the rails 3, 3;
Wheels 21 and 22 running on rails 3 and 3 as shown in Figures A and H
The hopper 2 is rotatably mounted on the wheels 21 and 22.
3 is placed on a rack, and the treated material 14 is scattered by a hopper 23 while running on a rail 3°3.

The hopper 23 is open at the top and has a supply port 23a at the bottom, and the supply port 23a is provided with a processing material dropping device 31. Because of this, the sheets are less likely to fall from the supply port 23a, and on average they do not fall and fall off in a dumpling shape, which helps this.For example, as shown in FIG.
As shown in B, a drum 24 with a scraper 25 protruding thereon is rotatably provided, and the drum 24 is rotated forward and backward at regular intervals by a motor 26 via a control circuit (not shown). The drum 24 is mounted on a single shaft (see Fig. 6A).
), two shafts mounted in parallel (Fig. 6B), etc., are selected as appropriate depending on the condition of the moisture content of the material to be sprayed, and the gap between the opening 23a of the hopper 23 and the drum 24 is also adjusted.
The setting should be done taking into consideration the particle size, viscosity, etc. of the processed material. It is preferable that a drainboard (not shown) or the like be provided at the opening of the hopper 23 to sort out foreign objects such as large stones, pieces of wood, and pieces of metal. In addition, 27 is a motor for driving wheels 21 and 22,
28 is a cord winding drum.

Reference numerals 29 and 30 are limit switches provided near both ends of the rail 3, and 32 is a belt conveyor shaft for carrying out processed materials.

Therefore, in order to process the processed material, a fermentation base 14a containing the processed material is formed on the floor 2 between the 3.3-degree rails without shredding. This fermentation base 14a may be imported from another source or may be produced using this apparatus. When producing with this device, a stirring device 4 is used. The details are as explained in FIGS. 1 to 3 above, so they will be simplified, but first, as shown in FIG. 7A, the processing material supply device 20 is moved to one end side of the rail 3,
After the untreated material with a moisture content of 85 to 95% is brought in and placed on the floor 2 between the rails 3 and 3, the stirring device 4 is reciprocated. Then, the stirring rod 8 protruding from the shaft 9 rotates as the stirring device 4 moves, and the processed material is repeatedly stirred many times, so that it is finally dried by solar heat or fermentation. At this time, if necessary, sawdust, dried feces, etc. may be added to adjust the moisture content and promote the drying process.

After the fermentation base 14a is formed, the stirring device 4 is positioned at one end of the rail 3.3 as shown in FIG. Spray 14.

This scattering is carried out by making the material supply device 20 reciprocate along the rails 3, 3, and transferring the material stored in the hopper 23 to the hopper 23 by rotating a drum on which a material dropping device 31, for example a scraper 25, is protruded. The liquid is sprayed by dropping from the supply port 23a. In this spraying, the amount of spraying is adjusted so that the overall moisture content does not rise too much.

When the dispersion of the treated material is finished, the treated material supplying device 20 is brought to one end of the rail 3.3 and stopped as shown in FIG. and stir the fermentation base 14a and the sprayed treated material 14,
Fermentation treatment.

During stirring in this stirring device 4, the material to be treated is transferred to one end side of the rail 3.3 by the rotation of the stirring rod 8 in a fixed direction. Exit 3
By the time it reaches 3, it has been completely fermented and processed, and the end portions fall into the outlet 33 as shown in FIG.

Therefore, it is preferable that the treated product 14 is not sprayed all over the fermentation base 14a, but only halfway, and not on the fermentation base 14a near the outlet 33.

After the sprayed processed material 14 is stirred and fermented, a part of it is automatically carried out, and the rest becomes a fermentation base 14a, and by repeating the above operations, the processed material is continuously processed.

As described above, according to the present invention, there is no need to store and prepare sawdust or the like and adjust the moisture content, and the processing material can be automatically processed, which is extremely effective.

Note that the present invention is not limited to the stirring device described above, and it goes without saying that a stirring device using a packet conveyor or the like may be used, for example.

[Brief explanation of drawings]

Figures 1 to 3 show a conventional stirring fermentation processing apparatus, with Figure 1 being a partially sectional side view, Figure 2 being a partially sectional plan view, and Figure 3 being a partially sectional side view.
The figure is a partially cross-sectional rear view, FIGS. 4 to 7 show an embodiment of the present invention, FIG. 4 is an overall schematic view, FIG. B is a side view thereof, FIGS. 6A and B are sectional views of 9 parts of the hopper, and FIGS. 7A, B, and C are schematic explanatory views showing the state of use of the present invention. 2... Floor surface 3... Rail 4... Stirring device 8... Stirring rod 20... Treated material supply device 21. 22... Wheel 23... Hopper 30...
・Processed material dropping device patent applicant Okada Seisakusho Co., Ltd. Figure 2 1

Claims (3)

[Claims] (1) Livestock manure or sludge, which is characterized by using livestock manure, sludge, etc. that have been appropriately stirred and dried in advance as a fermentation base, and then scattering untreated livestock manure, sludge, etc. onto the fermentation base, and then subjecting it to stirring and fermentation treatment. Fermentation processing methods such as. (2) A stirring fermentation processing device with a rail laid on the floor and a stirring device on the rail, and a processed material supply device with a hot spring and a device for dropping the processed material into the bottom opening of the hopper. is provided so as to be freely movable, and animal excrement, sludge, etc., which have been appropriately dried in advance along the said rails, are prepared as a fermentation base, and unprocessed animal excrement, sludge, etc. are placed on the fermentation base by the treated material supply device. A fermentation treatment device for livestock excrement, sludge, etc., characterized in that after being sprayed, the agitation fermentation treatment is carried out in the agitation fermentation treatment device. (3) The fermentation processing device for livestock excrement, sludge, etc. according to claim 2, wherein the processing material dropping device is a rotatably mounted drum equipped with a crane.