JPS58196895A - Fermenting method for waste or the like - Google Patents

Abstract

PURPOSE:To conduct optimun fermentation and enhance treating capability, by a method wherein a fermenting tank provided with stirring vanes for mixing, stirring and granulating a raw material is provided as a unit, air blasted by the vanes is passed through the raw material to ferment the raw material. CONSTITUTION:A main body 1 of the fermenting tank of a desired size is formed in such a shape that two or more main bodies can be connected in a vertical or horizontal direction to increase the treating capacity in response to an increase in the amount of the material to be treated. Walls of the main body 1 are preferably treated to have a heat-insulating property so that fermentation can be accelerated. One or more stirring shafts 3 each of which is provided on its outside periphery with the stirring vanes 2 for mixing, stirring and granulating the material to be treated are rotatably provided in the interior of the main body 1, and are driven by a driver 4. The shaft 3 and the vanes 2 are formed to be hollow, and either or both of the shaft 3 and the vanes 2a, 3a are provided with nozzle holes 2a, 3a.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to sewage sludge, screen sludge, -#! This is a fermentation method for effectively carrying out an aerobic fermentation process of 1 kg.

In the conventional fermentation method, openings are provided at the 1st and 2nd sides of the fermenter, or ventilation holes are placed in the stirring shaft. However, there are drawbacks such as clogging of this vent hole and non-uniformity of the air flow.In the case of 4 installations due to the increase in the number of membranes, the membrane edge becomes excessive9. Depending on the method, it may not be possible to expand the cocoon due to aerobic fermentation due to lack of space. Ninth, there are drawbacks as mentioned above.

In addition, in the past, large-scale burial mounds for Okihiro large-capacity burial grounds were mainly used. In small urban areas, there were few mōkil lids, making large-scale facilities uneconomical. Simply downsizing the scale equipment will result in gvi* being a cost. For this reason, a small-capacity lid fermenter with an internal fermentation machine has been proposed as a small-capacity O-fermentation device, but this is used for relatively easy-to-ferment products such as **Main. Even if the mixing method is not appropriate, it will be difficult to generate even if the aeration is uneven.
A double-cut fermented lead salt has the disadvantage that fermentation is insufficient in this small-scale facility.

The present invention is based on a lead-salt method that is capable of producing sufficient amounts of relatively high-volume materials, and that can be easily expanded according to the capacity of the processing facility, as described below. In Fig. 0, which explains the present invention based on the fruit of evil m-, 1 is the main body of the fermenter having the required size, and this main body is arranged in the vertical direction so that it can be expanded as the throughput increases. Alternatively, it may be formed in a shape that allows two or more bodies to be connected laterally, for example, in a ring shape as shown in the figure. Each rMow body of this main body 1 is preferably subjected to heat insulation treatment in order to promote fermentation0, and inside this main body 1 there is a stirring side 1g42 that performs mixing, stirring, and granulation actions, and an outer layer KN stirring side 1g42. One or two or more shafts 1
The shaft and blades are made hollow inside, and the nozzle holes 2a and 51 are formed in either the shaft and blades or the hollow. One shaft end protrudes outside the main body, and a blower 6 is installed on this shaft end via a rotary joint 5, and aA is performed from the blower 6 to the rotary joint 5 and through the hollow stirring shaft to each nozzle into the nIIa Ruichi Formation. shall be taken as a thing.

In addition, as shown in Figure 1, the discharge port 8 is provided at the input lower t1F portion of the main body 1, but when the main body is expanded, the discharge port may be provided at 511i11jIII if the main body is arranged horizontally. be. Then, install the exhaust pipe 10 and the temperature sensor $-11 and t in a position where it will not cause any disturbance to this main body IKU.
It is installed protrudingly, and the coex'AV10 has wit[1ii12,
Once the humidity recording needles 16 are connected to the sensors 11, and the temperature recorder 13 is connected to the relay box 15 via the program setting device 14, the oxygen concentration fliKU is directly connected to the relay box 15, and the relay box 15 and the X
The relay box 15 has a flow rate regulating valve 16 that adjusts the amount of air blown by the air blower 6, and a drive device 40fiJJ (which drives the device 17).

The operation of a single # generation tank configured as described above will now be described.

First, raw materials such as screen-crushing sewage sludge, livestock waste, etc. are charged into the fermenter main body 1 through the inlet 7, and uniformly spread over the stirring blades 2 driven by the drive device 4. The air that is mixed and blown through the blower 6 blows into the raw materials put into the main body through nozzles 2 & 5* provided on the stirring shaft 3 and stirring blades 2. This trace air is determined by the characteristics of the input raw materials, the outside air, etc., and is set to the mfiltL amount of lost air for fermentation, and is set to the optimum rotation speed. This is because the temperature inside the tank rises during the N generation process of the raw material, but the temperature sensor 11 (provided with an O-coat) detects the state of fermentation* when the temperature inside the O-tank changes. Once the sensor 11 has leaked out, the good humidity is manually input to the temperature recorder 13, and this manual note is input into the program setting device 14, and the air adjustment valve 16 is set to adjust the ventilation amount via the relay box 15. At the same time, the gas exhausted from the exhaust pipe 10 is put into the #kJIILIt, and if the oxygen level falls below the specified value, the relay box 15
The above-mentioned lid adjustment valve 16 and the rice cooker control device 17tIi are connected through the t-
This allows for controlled and efficient fermentation.

[As explained above, if it becomes necessary to increase the number of fermentation equipment 1i due to an increase in throughput, the above fermentation tank can be moved vertically or in one direction as shown in Figure 3 and below. Just follow the direction 111. However, when joining in the vertical direction, the main body has an inlet and an outlet at the top and bottom, respectively, so if you align the positions of these two ports, you can easily add more, but when joining in one direction, the main body's ll1lfflk It is necessary to provide a discharge port and an input port for the next tank.In the figure, 18 indicates an input conveyor, and 19 indicates a discharge conveyor.

When the main production #i is used, one fermenter is treated as one unit, and this is controlled so that Nk+ production can be performed, and the capacity of the tomb is increased by Oi.
Therefore, it has the advantage that the capacity can be increased simply by mounting the main body vertically or in one direction.

[Brief explanation of the drawings] Figure 1 is an external view, Figure 82 is a partially damaged front view, Figure 3 is an explanatory diagram of the foreshadowing added in the vertical direction, and Figure 4 is in good condition with addition in one direction. FIG. 5 is an explanatory diagram of agitation transfer. 1... Main body 2... Stirring blade 3... Stirring shaft 4... Drive IIIJ device 2a, 3a... Nozzle hole 5... Rotary joint 6... Blower 7... Insertion [1 8...Discharge port 10...Join gas register 11...Once sensor 12...#I point concentration meter 13...1M1 degree - total 14...Program footer 15...Relay Box 16... Flow violet mu valve 17... Or 61 device 18... Input conveyor 19... Output conveyor Patent applicant: Hitachi Mechanical and Electric Industrial System Company Representative, Hayashi Wei, 1 other person

Claims (1)

[Claims] The fermentation cypress unit is equipped with a stirring blade for 1i rapid stirring of raw materials and electric granulation, and the air forced through the stirring blade is ventilated into the gland, depending on the properties of the raw material, outside temperature, etc. The above ventilation and °smoking combination is 1! 1a A method for fermentation of millet, etc., characterized in that the fermentation tube light is optimized and the units described above are added depending on the lid of the processing area.