JP2002136995A - Septic organic matter treatment equipment and septic organic matter treatment method - Google Patents

Abstract

(57) [Summary] [PROBLEMS] In a process of mixing and disinfecting putrefactive organic matter with quicklime, the processing device is small, the processing speed is increased, the power capacity of the processing device is reduced, and the work is facilitated. It is an object of the present invention to be able to perform a sufficient amount of processing even if the whole can be mounted on a vehicle. SOLUTION: A plurality of cylindrical stirring drums having a large number of stirring blades in a cylindrical drum are connected in series, and the first cylindrical drum is provided with a supply port for quick lime and wet putrefactive organic matter, and is used as a main reactor 1, The cylindrical drums other than the main reactor are connected to the sub-reactors 2, 3, and 4 by connecting the cylindrical drums with the sub-reactor sequentially connecting pipes, and the main reactor 1 is installed so that the axis thereof is horizontal, and The connecting pipe 17 of the main reactor 1 is provided with a shut-off valve 18, the diameter of the cylindrical drum of the sub-reactor is made smaller than that of the main reactor 1,
Further, this is a processing apparatus in which the rotational speed of stirring of the sub-reactor is set to be higher than that of the main reactor 1, and the processed material is discharged from the lowermost cylindrical drum.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a processing method for processing putrefactive organic substances such as livestock manure, organic sludge from a wastewater treatment process, and processing residues from a food processing plant. Mixing spoilage organic matter with highly active quicklime to decompose and sterilize spoilage organic matter, and at the same time, treat it to a variety of places with a treatment device that can be reduced to fields and green spaces as soil improvement material It relates to the processing method as described above.

[0002]

2. Description of the Related Art As a method for treating putrefactive organic matter, there is Japanese Patent Publication No. 61-21720, "Method and Apparatus for Disposing Waste". Briefly, the proposed method is as follows: putrefactive waste having a water content of 60% or more is accommodated in a horizontally extending cylindrical processing drum by a volume of 1/3 to 1/4, and 5 to 5 of the filling weight is stored. Add 30% quicklime,
Mix by the stirring blades provided inside to sterilize putrefactive organic substances and decompose to produce muddy products (soil improving material)
And a device for this processing method,
This processing apparatus is provided with a processing drum including a cylindrical body and an upper chamber connected to the upper end thereof, and a stirring main shaft provided with a large number of radial stirring blades on a main shaft inside the processing drum. The muddy slurry produced by mixing quicklime and putrefactive waste can be applied to a field as a high quality soil improvement material.

[0003] By such treatment, putrefactive organic substances such as livestock excreta and food residues are sterilized by the action of strong alkali of quicklime, and are converted into high quality soil improvement materials, which are sprayed on the field as slurry. After that, if necessary, a drying process is provided and dispersed in a field in the form of powdered solid, which can be widely used for paddy rice, vegetables, fruit trees, turf, greening trees, etc. Has been used as. In addition, quicklime used for the treatment reaction of putrefactive organic matter with such quicklime has a purity of 95% or more as calcium oxide, and a hydration reaction when quicklime is mixed with water is completed in 10 to 20 seconds. It must be highly active in the hydration reaction to generate the corresponding heat of hydration. This also applies to quicklime used in the present invention.

[0004] Waste treatment according to the above-mentioned known example is performed only by mixing waste such as livestock manure, wastewater treatment sludge (biological treatment sludge), and food residue with quick lime. It can be said that it is an excellent treatment to convert to soil improvement material and to sterilize pathogenic bacteria and microorganisms in a short time. However, in the above-described known example, the processing operation is performed in a batch system, and the filling amount of the content to be processed is extremely small as 1/3 to 1/4 of the inner volume of the cylindrical processing drum. Has become. Therefore, the processing speed is not so high.

[0005] For example, a processing machine having a filling amount of putrefactive organic matter per time of about 1 ton has a drum inner diameter of 1.2 m, a drum length of 2.3 m, a stirring power of about 22 kW, and a water content of about 22 kW. The power of the slurry pump that supplies about 88% of the raw material (manure) is also about 7.5 kW. If this reaction time (mixing time) is set to about 10 minutes, taking into account the supply time of the processing raw material (septic organic matter) to the processing drum, the supply time of quick lime, and the discharge time of the product after the completion of the reaction, Overall cycle time is 15
Approximately 20 minutes, and even one hour is about 3 to 4 times. That is, even if such a large facility and a large power are required, it only processes 3 to 4 tons of raw material per hour, and the facility is large and fixed and installed in a building for storing the processing facility. Was.

Therefore, in order to increase the processing capacity of the processing equipment, the shape of the cylindrical drum for reacting waste is increased to increase the filling amount in one processing operation, or the waste is discharged by a pump or a screw conveyor. One cycle time must be shortened by increasing the supply rate of material and quick lime. When the size of the reaction processing drum is increased as in the former case, the size of the apparatus is increased, and the power for stirring the apparatus is also increased. On the other hand, in order to increase the supply rate of waste and quick lime as in the latter, a pump for transporting waste,
In order to increase the supply speed of a screw conveyor or the like, or quick lime transport equipment, the transport equipment becomes large, and its power becomes large. In particular, the properties of putrefactive organic substances such as livestock excreta, excess sludge, and food residues to be treated are different from water, which is Newtonian fluid, and are often muddy or massive solids. It becomes a positive displacement pump such as a screw or a screw type, and it requires a large power and is a device with heavy consumption.

Further, in this treatment, since quick lime is used as a reactant, a hard lime scale is easily formed on the wall surface to which the contents and quick lime adhere. In the area where the action of the stirring blade acts strongly, the growth of the scale does not hinder much, but on the inner wall surface of the upper space of the processing drum where the contents fly as a net-like curtain scattered flow by the stirring blade, These calcareous substances accumulate because they are above the filling level of the contents, and when they come into contact with air, the surface reacts with the air and hardens, easily forming large lumps. This may cause damage to the operation of the discharge valve for discharging the gas and the pump for transporting the reaction product after the discharge. Therefore, in order to prevent large agglomeration of contents and lime as much as possible, the space beyond the stirring blades of the reaction processing drum and the inner wall surface above the filling level are frequently cleaned, and before the calcareous scale grows large. The operation must be performed so that the deposits are scraped off and the lumps do not hinder the operation. At this time, if the shape of the processing drum is large, the area for scraping is widened, and the scraping operation is performed using a longer rod, which imposes a heavy burden on the operator.

[0008] In the treatment of the above-mentioned known example, even the most universal and filth-like substances such as manure and excess sludge,
Although it is useful to convert to a sanitary one in a short time and obtain a useful soil improvement material at the same time, in general, in order to use quicklime which easily produces a hardly soluble hard scale as a reactant, If the scale removal operation is frequently performed while standing on a large processing equipment, there is a disadvantage that a trouble is easily caused. Also, of course, the treatment facility is fixed,
For example, manure is transported from about 10 pig and poultry raising facilities to a place where processing equipment is installed, and processed.

Then, as described above, 1/3 to 1 of the internal volume
In order to increase the processing speed in order to perform a batch type processing operation with a content amount of / 4, the size of the reaction processing drum must be increased, or the supply speed of quick lime or processing raw materials (septic organic matter) should be increased, or the entire apparatus needs to be increased. I have to do. This increases the cost of the work of removing the scale accompanied by a feeling of waste as the equipment cost increases, and the burden on the operator is large.

[0010]

Accordingly, the apparatus for treating putrefactive organic matter of the present invention mixes putrefactive organic substances such as livestock excreta, excess sludge, food residues, etc. with quicklime, sterilizes and decomposes them, and In the process of converting to improved materials, a smaller processing device with a higher processing speed is provided, the power capacity of the supply means for the putrefactive organic matter (processing raw material) and quick lime is small, and the lime scale removal operation is easy. It provides a processing device for perishable organic matter.Furthermore, since the processing device is small and the electric capacity as equipment power is reduced, equipment required for processing is integrated into a truck and mounted on a truck, etc. An object of the present invention is to provide a processing method capable of moving to a place where a volatile organic substance is generated and performing processing.

[0011]

According to the present invention, there is provided an apparatus for treating putrefactive organic matter, comprising: a cylindrical drum; a main shaft rotatably provided along an axis of the cylindrical drum; and a radially fixed to the main shaft. A plurality of stirring blades and a plurality of cylindrical stirring drums each having a supply port formed on one side of an intermediate position in the axial direction of the cylindrical drum and a discharge port for contents formed on the other side formed by a connection pipe. In a septic organic matter treatment device that is connected in series and performs a mixed treatment of wet decayable organic matter and quicklime,
The axis of the first cylindrical stirring drum to which the putrefactive organic matter and quick lime are supplied is installed in the horizontal direction, the supply port of quick lime is provided above the axis of the cylindrical drum, and the discharge port of the contents is provided at the axis. An outlet is provided below the core, and an exhaust port is provided above the axis to serve as a main reactor, a cylindrical stirring drum other than the main reactor serving as a sub-reactor, and an outlet of the main reactor. The connecting pipe connecting the subsequent first cylindrical stirring drum is provided with a shut-off valve, and the cylindrical stirring drum of the sub-reactor is a cylindrical drum having a smaller diameter than the main reactor and rotating at a higher speed than the main shaft of the main reactor. This is a septic organic matter treatment device that is rotated at a speed and mixes and treats putrefactive organic matter that discharges a slurry-like product from a discharge port of a cylindrical stirring drum of a sub-reactor located at the most downstream with quick lime.

Further, the method for treating putrefactive organic matter according to the present invention, when treating putrefactive organic matter by mixing it with quicklime,
The processing device is moved to a place where the putrefactive organic matter is stored together with the quicklime, and the processing is performed.The cylindrical drum, a main shaft rotatably provided along the axis of the cylindrical drum, and A number of agitating blades fixed radially to the main shaft, and a cylindrical agitator having a supply port formed on one side of the cylindrical drum at an intermediate position in the axial direction and a discharge port formed on the other side. A plurality of drums are connected in series by a connecting pipe, the first cylindrical stirring drum is used as a main reactor to supply and mix wet septic organic matter and quick lime, and the remaining cylindrical stirring drum serving as a sub-reactor is successively used. Without passing through,
A processing device for putrefactive organic matter, which is to be taken out as a processed material from an outlet of a cylindrical stirring drum located at the most downstream,
A quick lime silo and a conveyor for supplying quick lime of the quick lime silo to the main reactor are installed on a carrier of the same vehicle, and the wet putrefactive organic matter stored outside the vehicle is treated with the putrefactive organic matter on the vehicle. , And discharging the contents after the treatment to the outside of the vehicle.

In the method for treating putrefactive organic matter according to the present invention, connecting a plurality of cylindrical stirring drums in series by a connecting pipe does not mean that all of the cylindrical stirring drums are arranged in series on a straight line. Without, the cylindrical stir drum and the subsequent cylindrical stir drum of the main reactor to which the raw material and quick lime are supplied are sequentially connected one by one by a connecting pipe, and the content in which the raw material and quick lime are mixed, Sequentially passing through them, it means that the slurry is discharged as a slurry-like product from the discharge port of the cylindrical stirring drum located at the end. However, there is no limitation that the direction and arrangement of the axis when the cylindrical stirring drum is installed are on the same line.

The above-mentioned contents are solid, liquid or slurry-like contents, and do not include air or gas such as ammonia generated by a treatment reaction and volatilized in a space above the main reactor.

[0015] In the apparatus for treating putrefactive organic matter of the present invention, the wet putrefactive organic matter and quick lime, which are raw materials to be treated first, are supplied to the main reactor, which is the first cylindrical stirring drum, and the raw material and quick lime are supplied. Is subjected to the mixing action, the contents in the main reactor flow down from the outlet provided on the cylindrical drum wall below the axis of the cylindrical drum. In steady-state operation, raw material and quick lime are continuously supplied to the main reactor, and the contents of the main reactor continuously flow from the outlet to the next connected sub-reactor. For this reason, in steady operation, the main reactor is in the form of a continuous complete mixing tank, and the ammonia generated when organic matter and quicklime react with each other is dissolved in the aqueous phase of the contents. Anything that cannot be vaporized evaporates into the gas phase and is released to the outside through the exhaust port.

The cylindrical stirring drum of the main reactor has its axis centered in the horizontal direction, so that the outlet for the contents is located below the cylindrical drum, and the supply port for quick lime and the supply port for the raw material are An exhaust port for gas such as vaporized ammonia is located above the cylindrical drum, and is located above the cylindrical drum. Then, it is desirable that the filling level of the content in which the putrefactive organic matter and the quick lime are mixed in the main reactor is less than half of that of the cylindrical drum. Of course, even if the filling level of the contents in the main reactor is less than half of that of the cylindrical drum, the stirring blade fixed to the main shaft rotates together with the main shaft, so that the contents are scattered or lifted into a space larger than the main shaft. Some of the contents reach the area above the main shaft, but most of the contents are accommodated in a cylindrical drum below the main shaft and are subjected to the stirring action of the stirring blade.

The substance supplied to the cylindrical drum is supplied from a supply port provided on one side of the cylindrical drum at an intermediate position in the axial direction, and is discharged beyond the intermediate position on the other side. Even if the substance is continuously supplied and the contents are continuously discharged because the substance is discharged from the outlet to the outside, the short path (short circuit phenomenon) can be prevented because the supply port and the discharge port are not close to each other. it can.

Similarly to the main reactor, the sub-reactor following the main reactor is also a cylindrical stirring drum composed of a cylindrical drum, a main shaft for stirring, and a plurality of stirring blades fixed radially to the main shaft. The main axis of the sub-reactor may be vertical or horizontal. The diameter of the cylindrical drum of the sub-reactor is smaller than the diameter of the cylindrical drum of the main reactor, and the rotational speed of the main shaft for stirring is set to be higher than the rotational speed of the main shaft of the main reactor. , So that a stronger stirring is performed. This is because in the main reactor where the quicklime and raw materials are directly supplied, the filling amount of the contents is operated in less than half of the cylindrical drum so that the entire contents in the cylindrical drum are mixed,
In the process of the sub-reactor, the quicklime and the raw material are already mixed to some extent, and the mixing operation of the quicklime and the raw material or the contents in a narrow area is not a mixing operation by moving a large area, and a side reaction is performed. This is because mixing is sufficiently promoted even if the stirring operation of the stirring blade is performed in a state where the cylindrical drum of the machine is almost filled, and the decomposition reaction of the putrefactive organic substance is promoted.

The sub-reactor may be constituted by one cylindrical stirring drum, but preferably, two or more cylindrical stirring drums are connected to sequentially feed the contents from the outlet of the main reactor. It is better to pass through a plurality of cylindrical stirring drums as a reactor. In this sub-reactor, also in any cylindrical stirring drum, the supply port into which the content flows is provided on one side with respect to the axial intermediate position of the cylindrical drum, and the content passes through the intermediate position and is rotated by the shaft. Since the contents move to the discharge port on the other side of the direction, there is little possibility that the contents are discharged in an extremely short time through a short pass.

In the cylindrical stirring drum of the sub-reactor, the content is occupied by the main shaft and the stirring blades in a state where the content is filled in the cylindrical drum. Higher than the reactor. Of course, due to the stirring action in the main reactor and the stirring action in the sub-reactor, some of the gas such as air and ammonia is mixed into the contents as small bubbles, but the cylindrical drum of the sub-reactor The inside is almost full of contents.

For this reason, the contents in the sub-reactor rotate together with the rotation direction of each main shaft in order to be stirred while filling the inside of the cylindrical drum, but the rotation speed of the main shaft of the sub-reactor is The rotation speed is higher than that of the reactor, and strong stirring can be performed. This is because the contents in the cylindrical drum of the sub-reactor have already been subjected to the stirring and mixing action in the main reactor, and quicklime is directly supplied to the sub-reactor connected to the main reactor by a connecting pipe. The reason is that even if strong stirring is performed, there is no possibility that the scattering of the contents due to centrifugal force will adversely affect the supply port and the discharge port.

In the present invention, the moisture of the wet putrefactive organic substance is in the range of about 70 to 95% by weight of the putrefactive organic substance. Things like livestock manure, vegetable waste and sludge are different from those whose water content is strictly controlled like industrial chemicals, and even chicken dung is excreted with about 70% moisture,
Also, the total water content of pigs and cattle's feces and urine is about 85%, and most of the waste vegetables have about 90% water, depending on the degree of washing water in the facility. Since it fluctuates every day and is subjected to treatment without providing a special drying process or moisture conditioning process with water, it is considered to be the moisture of this kind of putrefactive organic matter that occurs naturally in most facilities. Good. However, since the moisture of the putrefactive organic matter is also regulated by such transport equipment (pumps and screw conveyors), the moisture range according to the transport equipment of the putrefactive organic substance (raw material) may be kept within the above range. .

In the present invention, the means for adjusting the filling amount of the contents of the main reactor as described above is such that the weight of the contents is measured by supporting the cylindrical drum of the main reactor with a load cell. The feed rate of the raw material and the feed rate of quick lime can be adjusted. In this case, the ratio of the raw material and quick lime supplied to the main reactor must maintain a predetermined weight ratio.

Further, in the method for treating putrefactive organic matter of the present invention, since the putrefactive organic matter treatment device, the quicklime silo and the quicklime conveyor are mounted on the vehicle as a single unit, any place where vehicles can pass can be used. Even in such a place, it can be treated in a place where the perishable organic matter is stored by the movement of the vehicle.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the apparatus for treating putrefactive organic matter and the method for treating putrefactive organic matter according to the present invention will be described.
This will be described with reference to FIGS.

[0026]

Embodiment 1 FIG. 1 shows an embodiment of the apparatus for treating putrefactive organic matter of the present invention, and is a front view of a main shaft of a main reactor as viewed from the front, and shows a portion such as the inside of a cylindrical drum. FIG. FIG. 2 is a conceptual diagram showing that the cylindrical drums are arranged in series, as viewed from a side direction perpendicular to the main axis of the main reactor of the processing apparatus of FIG. FIG. 1 shows a process in which a mud-like material obtained by combining pig feces and urine as putrefactive organic matter is treated with quick lime as a processing raw material.
Mixing processing of pig manure in the manure pit 5 and quicklime in the quicklime silo 6 by one cylindrical stirring drum 1 as the main reactor and three cylindrical stirring drums 2, 3 and 4 as the sub-reactors. It is. Pig manure is introduced from the introduction port of the manure pit 5, and is supplied from the raw material supply port 8 of the main reactor 1 to the cylindrical drum 1 of the main reactor 1 through the raw material pipe 7 by the positive displacement pump which is the raw material pump 51, On the other hand, quicklime is hermetically contained in a quicklime silo 6 and discharged by a rotary valve 9 to a conveyor 10 such as a wire screw system.
The lime is supplied to the cylindrical drum 1 of the main reactor from a quick lime supply port 12 provided above the first lime supply port.

In the main reactor, a main shaft 13 for stirring is rotatably provided along the axis 11 of the cylindrical drum 1 installed so that the axis 11 is horizontal. Of the cylindrical drum 1 is fixed.
An exhaust port 15 is provided for exhausting the upper space.
In FIG. 1, the quicklime supply port 12 is located above the axis 11, the content discharge port 16 is located below the axis 11, and the exhaust port 15 is provided above the axis 11. It is shown that it is. As described above, the main reactor is of a type called a cylindrical stirring drum, and the subsequent sub-reactors are basically the same cylindrical stirring drum.

The outlet 16 of the main reactor is connected to the next cylindrical stirring drum 2 by a connecting pipe 17, and the connecting pipe 17 connected to the outlet of the main reactor is provided with a shut-off valve 18. I have.

The cylindrical stirring drums 2, 3, which are sub-reactors,
4 are arranged in series, the contents from the main reactor pass sequentially through the cylindrical drum 2, the cylindrical drum 3 and the cylindrical drum 4, and the contents discharged from the cylindrical drum 4 located at the most downstream position are Product pit 19 as the final product
Is discharged.

The valves 20, 21, and 22 provided at the lower portions of the cylindrical drums 2, 3, and 4 of the sub-reactor are closed during a normal processing operation, and when the processing is stopped for a long time, the sub-reactor is not used. When the contents contained in the cylindrical drums 2, 3, and 4 are discharged and emptied, the contents are opened to guide the contents to the reaction product pit 19.

Next, the processing operation will be described. When starting the processing operation, first, the raw material is stored in the cylindrical drum 1 of the main reactor by a predetermined weight. This is, for example, for supplying manure as a raw material to the cylindrical drum of the main reactor of FIG.
Is achieved by weighing. Then, with the main shaft 13 rotated at a predetermined rotation speed in a predetermined rotation direction, the rotary valve 9 and the conveyor 10 are operated to supply quicklime having a weight corresponding to the filled manure. At this time, the shut-off valve 18 is closed, and the main reactor performs a batch mixing operation. The weight of quicklime added here is usually 7 to 20% of the weight of the raw material, but is set in advance by a treatment test or the like. After supplying the first predetermined amount of quicklime,
Stirring is performed for 2 to 3 minutes with the shut-off valve 18 closed, and then the shut-off valve 18 is opened to allow the contents of the main reactor to flow out to the sub-reactor 2. In FIG. 1, the content filled to the vicinity of the level 23 of the main reactor is about 1.5 times the volume of one cylindrical drum of the sub-reactor, and the three cylindrical drums 2, 3,. The combined fill volume of 4 is about twice the fill volume of the main reactor in the initial batch operation. The cylindrical drums of the sub-reactors are connected in series by connecting pipes 25 and 26, and the respective main shafts are sequentially rotated so as to continuously agitate the contents from the main reactor. Here, the diameter of each of the cylindrical drums 2, 3, and 4 of the sub-reactor is smaller than that of the main reactor 1, and the rotation speed of the main shaft of the sub-reactor is higher than that of the main reactor. I have.

At this stage, since the content less than the capacity of the entire cylindrical drum of the sub-reactor is supplied, the shut-off valve 18 is provided.
Is closed and the main reactor 1 is again charged with a predetermined amount of raw material. Thereafter, quick lime corresponding to the charged amount is supplied to the main reactor, and the mixture is similarly stirred for 2 to 3 minutes. Stirring is also performed on the cylindrical drums 2, 3, and 4 of the reactor. However, when the contents do not reach the cylindrical drum of the subsequent sub-reactor at all due to the first filling, the main shaft of the cylindrical drum of the empty sub-reactor does not need to rotate. In FIG. 1, when the batch operation is performed twice with the cylindrical drum of the main reactor, the sub-reactor 3
A sufficient content is obtained.

Subsequently, when the third batch operation of the main reactor is performed and stirring is performed for 2 to 3 minutes, the main reactor and the sub-reactor can be shifted to a substantially steady state. And feed the raw material and quick lime continuously to the main reactor. The contents subjected to the processing operation (stirring operation) are continuously discharged from the discharge port 27 of the cylindrical drum 4 of the sub-reactor located at the lowermost stream by the extrusion flow, rise up the discharge pipe 28, and then continue to the pipe line. After overflowing from 29, it falls into the product pit 19 and is stored as a processed material. The stored treated material is withdrawn by the product pump 30 as needed, and is sprayed as slurry on the field as a soil improving material, or is introduced into a drying process to obtain a powder that is easy to store, store and transport. I'll be killed. As described above, the first operation mode is a batch operation until the filling amounts of the contents of the main reactor and the sub-reactor reach the steady state level, but thereafter, the operation is a continuous operation. In addition, the supply speed of the quick lime and the supply speed of the raw material in the continuous operation are respectively controlled by the rotary valve 9.
And the rotation speed of the raw material pump 51.

In the cylindrical drum 1 of the main reactor and the cylindrical drums 2, 3, and 4 of the sub-reactors, quicklime and organic matter in manure react to produce ammonia. The amount of ammonia varies depending on the type of raw material, but raw materials with high protein
It tends to occur in large quantities. For this reason, in the main reactor, the exhaust gas is led from the exhaust port 15 to the outside through the exhaust pipe 31, and in the sub-reactor, the exhaust gas 32 branched from the discharge pipe 27 is led to the outside together with the exhaust of the main reactor. In FIG. 1, the sub-reactors 2, 3,
4 are all cylindrical drums 2, 3, 4
Are exhausted from the outlet 27 of the cylindrical drum 4 which is the final cylindrical drum. However, even if the cylindrical drums 2, 3, and 4 of the sub-reactor are individually exhausted, good.

In the processing of raw materials in a steady state, the average residence time as a whole is about 5 to 10 minutes, but as described above, this residence time is slightly extended at the start of the initial operation. In some cases, the processing is temporarily stopped during the steady operation, and the inner wall of the charging chute 33 having the quick lime supply port 12 and the raw material supply port 8 of the main reactor 1 is cleaned to remove scale. . In this case, the supply of excrement and lime should be stopped, the shut-off valve 18 should be closed, and the main shaft 13 of the main reactor should be stopped for cleaning.
3 and start supply of quicklime and manure and shut off valve 18
As soon as is released, it is possible to shift to continuous operation (steady operation).

However, the area is small, and cleaning can be completed in a short time. Since the cylindrical drum and the connecting pipe of the sub-reactor are full of contents, the scale does not grow as long as the cylinder is continuously operated, so that cleaning is not required and does not hinder continuous operation.

Since the weight of the cylindrical drum 1, which is the main reactor, is measured by the load cell 24, it is desirable to use a rubber flexible short pipe for a part of a pipe connected to the cylindrical drum.

FIG. 2 shows the relationship in which the cylindrical drums 1, 2, 3, and 4 are arranged in series when FIG. 1 is viewed from a side surface perpendicular to the axis 11. The upper and lower relations of the discharge ports are not shown in the figure. Here, if the intermediate position of the drum in the direction of the axis 11 of the cylindrical drum 1 of the main reactor is indicated by a one-dot chain line 34, the quick lime supply port 12
And the excrement supply port 8 is located on the left side of the intermediate position 34, and the contents discharge port 16 is located on the right side of the intermediate position 34, and the quicklime and excrement supplied to the cylindrical drum 1 are discharged through a short pass. Is prevented from being done. Furthermore, in the cylindrical drums 2, 3, and 4 of the sub-reactors, similarly, the supply ports 38, 39, and 40 for the contents are provided on one side of the intermediate positions 35, 36, and 37 in the axial direction of the cylindrical drum. Are disposed on the side of the container to prevent a short path.

In FIGS. 1 and 2, the diameter of the cylindrical drum 1 of the main reactor is D1, the diameter of the cylindrical drums of all the sub-reactors is D2, and the relationship of D1> D2 holds. The diameter D1 of the cylindrical drum 1 of the reactor is
Is larger than the diameter D2 of the cylindrical drum. The rotation speed of the main shafts 44, 45, 46 of the sub-reactor is higher than the rotation speed of the main shaft 13 of the main reactor. This is because quicklime is not supplied directly to the side reactor, and there is no fear that the contents will be scattered in large quantities due to centrifugal force due to stirring and contaminate the quicklime supply port. This is because strong stirring (mixing) conditions can be selected in the secondary reactor. Also, since the quicklime and the processing raw material are already mixed in the main reactor in advance,
In the sub-reactor, the contents in the cylindrical drum need not be dispersed and mixed with each other throughout the drum, and the mixing can be promoted in a narrow area, so the cylindrical drum of the sub-reactor is almost full of the contents. In this state, it may be subjected to the action of the stirring blade.

Further, in the cylindrical drum 1 of the main reactor, the large number of stirring blades 14 radially fixed to the main shaft 13 are different from each other at the right and left sides of the intermediate position 34 in the normal rotation direction of the contents in the feeding action in the axial direction. For example, the stirring blade on the supply port side of quick lime, which is the left side of FIG. 2, has an action of sending the contents toward the right side, while the stirring blade on the side of the discharge port 16 is on the left side. Has the effect of sending the contents. this is,
The direction in which the colliding contents are pushed away is determined by the angle of the front surface facing the advancing direction of the stirring blade. Therefore, it may be appropriately selected according to the shape of the radial stirring blade 14.
As a result, in the cylindrical drum 1 of the main reactor, the contents are mixed into the entire drum. However, the stirring blades 47, 48, and 49 of the cylindrical drum of the sub-reactor do not have to be strongly pushed in either the left or right direction with respect to the axial direction. That is, since the cylindrical drums 2, 3, and 4 of the sub-reactor are full of the contents, the propulsive force in the axial direction of the stirring blade does not effectively act on the mixing, which may increase the power. It is. Therefore, in FIG. 1 and FIG. 2, the stirring blades 47, 48, and 49 of the sub-reactor are fixed to the shafts 52, 53, and 54 with a stainless steel plate whose outer peripheral side is slightly retreated like a sword. It does not have a significant feeding effect on one side.

In FIGS. 1 and 2, the side reactor is 3
Although it is composed of two cylindrical stirring drums, the number of the cylindrical stirring drums is preferably two or more. The reason for this is that by using a plurality of cylindrical stirring drums for the sub-reactor, the dispersion of the stirring power is measured, and the power for driving each of them is reduced. The current can be suppressed, and the power capacity of the processing equipment decreases. Also, when the sub-reactor becomes one cylindrical drum, considering the co-rotation of the contents,
This is because the rotation speed must be higher, and the length of the main shaft of the sub-reactor is also longer.

Here, as for the wet putrefactive organic substance subjected to the treatment of quick lime, for example, a mixture of pig manure and urine has a water content of about 85%, but in an actual pig house, the washing water is used. There is drainage, which also merges with the excrement that is actually excreted by pigs, which is slightly different from that of pigs where frequent washing is performed, and when the washing frequency is low, the increase in water is suppressed. Further, many feces and urine are excreted in a wet state containing water. Then, when this is mixed with quicklime of 7 to 20% of manure in the cylindrical drum 1 of the main reactor, the temperature rises due to an exothermic reaction due to hydration of quicklime. Although depending on the heat capacity of the reactor, the manure normally supplied at 20 ° C. is mixed with quicklime and generates heat due to the hydration reaction in a short time, and the hydration reaction corresponding to the weight of the added quicklime is generated. Since heat is generated, for example, 45 to 50
The temperature rises to about C. Then, the dark brown manure becomes a smooth ocher slurry. As a result, the fluidity increases as compared with the state of excrement as it is.

This is because manure is a decayable organic mass (feces).
The urine is added to this, and the feces are the intestinal microorganisms of pigs and undegraded (unabsorbed) feed components, and are moist organic matter. For example, intestinal microbes show that cells protected by cell membranes appear as if they were solid, but the cell membrane is chemically degraded by quicklime, and the tissue inside the cells is also decomposed by quicklime, mainly organic matter. Then, when nitrogen atoms mainly contained in the skeleton of the polymer component volatilize as ammonia, the intestinal microorganisms are decomposed at the molecular level and release a large amount of water contained as cytoplasm to the outside. In this way, manure is decomposed by mixing with solid quicklime, and
Manure (contents) mixed with solid quick lime will be more fluid than in its original state.

For this reason, after the quicklime and manure are mixed in the main reactor 1, the mixture (content) increases its fluidity as the processing proceeds due to the mixing action. For example, in FIG. The vicinity of the filling level 23 of the reactor is the actual filling level of the contents, and the difference between this and the liquid level 55 indicated by the broken line in the discharge pipe 27 causes the discharge pipe 27 from the main reactor.
It becomes a flow toward. The level 55 at which the content overflows from the discharge pipe 27 varies depending on the processing conditions, and since this portion does not exert a particularly large internal pressure,
It is desirable to use a flexible hose that can be adjusted up and down to some extent.

In FIG. 1, the reaction product pit 19 is
Although the reaction product is discharged using the gravity difference because it is installed below the processing apparatus, when storing the reaction product in a tank installed on the ground where the installation cost is low, for example, the pipe line 29 is connected to, for example, a positive displacement pump. Just connect it to. At this time, the volume flow rate of the pump for extracting the product may be slightly larger than the raw material supply amount. Of course, a level gauge for detecting the liquid level 55 can be provided to control the discharge pump.

[0046]

Embodiment 2 FIG. 3 shows another embodiment of the present invention, in which the cylindrical stirring drum of the sub-reactor of Embodiment 1 shown in FIGS. 1 and 2 is arranged so that the main axis is vertical. It is an example. In addition,
Although the number of cylindrical stirring drums of the sub-reactor is limited to two, it can be appropriately increased or decreased according to the processing speed or the residence time. The structure and operation of the cylindrical stirring drums of the main reactor and the sub-reactor are the same as those described above, and the description of the overlapping parts will be omitted.

In FIG. 3, the contents discharged from the main reactor 1 sequentially pass through the cylindrical drums 56 and 57 of the vertical sub-reactor, undergo a stirring operation, overflow from the discharge pipe 58, and flow to the product pump 59. And transported to a storage tank or a drying step (not shown). The main reactor 1 and the cylindrical drum 56 of the first sub-reactor are similarly connected by a connecting pipe 60,
The connection pipe 60 is provided with a shutoff valve 61. In the first cylindrical drum 56 of the sub-reactor, the content supply port 6 is provided at the lower part.
2 is formed, and a discharge port 64 for the content is formed on the opposite side of the intermediate position 63 in the axial direction of the cylindrical drum 56. Further, the contents are guided to the supply port 66 of the cylindrical drum 57 connected by the connecting pipe 65, and similarly from the discharge port 68 on the other side of the intermediate position 67 in the axial direction of the cylindrical drum 57 to the discharge pipe 69. Then, the product is transferred to a predetermined process by the product pump 59.

In FIG. 3, the sub-reactor is provided with a motor M for rotationally driving the respective main shafts 70 and 71, and agitates the contents at a higher rotational speed than the main reactor.
Also, in FIG. 3, the diameter of the cylindrical drum is larger in the main reactor 1 than in the sub-reactors 56 and 57.

The connecting pipe 65 is branched at an upper portion into a pipe 72, which is for discharging a gas component such as ammonia produced by the reaction to the outside, and 73 is a branch. It is a joint that can easily remove the pipe for gas release with one touch. Since the branched pipe 72 only allows gas to pass through it and does not apply an extremely large pressure, it has a simple detaching structure to facilitate cleaning of the pipe.

The processing apparatus shown in FIG. 3 performs the same processing operation as the processing apparatus shown in FIGS. 1 and 2, and there is no particular difference. However, the processing apparatus shown in FIG. It can be said that. In other words, when assembling the main equipment together, loading it on a vehicle, and moving it for processing in various places, there are restrictions on the height that can pass on expressways and general roads. The installation level of the main reactor is high due to the height of the sub-reactor, and there is a disadvantage when mass processing is intended, but the main axis of the sub-reactor is installed vertically For this reason, a structure with little deflection and excellent durability is obtained. The valves 74 and 75 are for discharging the contents when the main reactor 1 and the sub-reactors 56 and 57 are emptied, and are normally shut off.

[0051]

Example 3 FIGS. 4 and 5 are a front view and a plan view of an example illustrating a method for treating putrefactive organic matter of the present invention. The processing apparatus of the embodiment shown in FIGS. It shows a vehicle loaded on a vehicle and moved to various places where the putrefactive organic matter is stored, so that the putrefactive organic matter can be treated with quick lime there.

FIG. 4 is a front view of the apparatus mounted with the processing apparatus for perishable organic matter as viewed from the side of a vehicle, and FIG.
FIG. 5 is a plan view of the loading portion viewed from above.

In FIG. 4, a small quick lime silo 78 is provided on a platform 77 fixed to a loading platform 76 such as a truck.
Furthermore, quicklime is supplied to the main reactor 1 at a predetermined flow rate by a rotary valve 79 and a conveyor 80, and the main reactor 1 and the sub-reactors 2, 3, 4 are provided. Further, a raw material pump 51 for sucking raw materials such as manure and a product pump 59 for pumping the product to a predetermined tank outside the vehicle are mounted, and the entire equipment is operated by a control panel 82. The generator 83 as the whole power source is also loaded on the same loading platform 76. However, the generator 83 does not need to be operated when the power source for power is available locally, and this method is effective particularly when it is desired to avoid noise from the generator. Further, a hollow 85 is provided as needed.

The raw material pump 751 and the product pump 59
Also, when a positive displacement pump is already installed as a slurry pump in a tank or the like storing putrefactive organic substances, it is possible to use it.
In such a case, a control signal and a motive power supply may be sent from the on-board control panel 82 as needed, while the slurry-like processed material obtained by treating the putrefactive organic matter with quicklime is placed underground in the treatment place. When storing in a certain tank, there is no need to pump by the product pump 59, and it is only necessary to connect with a hose. If ammonia discharged from the exhaust pipe 31 is a problem, it can be easily removed by installing a tank containing water or acid on the ground and absorbing the ammonia.

When traveling on a general public road in Japan, the loading weight is 10 tons, the vehicle width is 2.2 meters, and the vehicle height is 3.
As an example when considering less than 8 meters, the diameter of the cylindrical drum of the main reactor 1 is 0.65 meters, the stirring power is 5.5 kW,
The diameter of the cylindrical drum of the sub-reactors 2, 3, and 4 is 0.35 meters,
The stirring power is 1.5 kW each, the power of the pumps 51 and 59 is 3.7 kW each, and the residence time is 2 minutes in the main reactor 1 and the total residence time of the three sub-reactors is 4 minutes. For treating spoilage organic matter. Therefore, if 3.5 tons of quicklime is loaded on the quicklime silo 78 mounted on the vehicle, depending on the processing conditions (mixing ratio of quicklime and raw materials),
Assuming that the proportion of quicklime is 12% by weight, about 29 tons of spoilage organic matter can be treated. The processing time is about 5 hours.

The processing operation of the processing apparatus of FIG. 4 is the same as that of the embodiment described with reference to FIGS. 1 and 2, but in brief, putrefactive organic matter such as manure stored in a local tank. Is sucked by the raw material pump 51 and supplied to the main reactor 1, from the quick lime silo 78 mounted on the vehicle to the rotary valve 7.
The quicklime discharged quantitatively at 9 is supplied to the main reactor 1 by a conveyor 80. The contents flowing out of the main reactor 1 are discharged through the connecting pipe 17 provided with the shut-off valve 18, sequentially through the sub-reactor 2, the connecting pipe 25, the sub-reactor 3, the connecting pipe 26 and the sub-reactor 4. The product is taken out of the pipe 28 by the product pump 59 and sent to a product tank (not shown) outside the vehicle. Air, ammonia and the like are discharged from the exhaust pipe 32 to the outside of the vehicle.

FIG. 5 is a plan view of a bed portion of the processing apparatus shown in FIG. 4, and shows a quicklime silo 78, a main reactor 1, sub-reactors 2, 3, and 4, a raw material pump 51, and a product pump. 59, a control panel 82 and a generator 83 are arranged, and the main shaft of the main reactor 1 is belt-driven by a motor, and the main shafts of the sub-reactors 2, 3, and 4 are driven by a motor.

[0058]

According to the present invention, the following effects can be obtained. The apparatus for treating putrefactive organic matter of the present invention includes a cylindrical drum, a main shaft rotatably provided along the axis of the cylindrical drum, and a number of stirring blades radially fixed to the main shaft,
A supply port is formed on one side of the intermediate position in the axial direction of the cylindrical drum, and a plurality of cylindrical stirring drums having a discharge port for contents formed on the other side are connected in series by a connection pipe, In a putrefactive organic material processing apparatus for mixing and processing wet putrefactive organic matter and quicklime, the axis of the first cylindrical stirring drum to which the putrefactive organic substance and quicklime are supplied is set horizontally, and a quicklime supply port is provided. Is provided above the axis of the cylindrical drum, the discharge port for the contents is below the axis, and an exhaust port is provided above the axis to form the main reactor, other than the main reactor. The cylindrical stir drum of the sub-reactor is provided with a shut-off valve in the connecting pipe connecting the discharge port of the main reactor and the subsequent first cylindrical stir drum. The cylindrical drum has a smaller diameter than the Rotated at a higher rotation speed than the main shaft of the reactor, and putrid organic matter that is mixed with quick lime to process spoilable organic matter that discharges slurry-like products from the outlet of the cylindrical stirring drum of the sub-reactor located at the most downstream position It is a treatment device for volatile organic matter, and the reaction between quick lime and putrefactive organic matter proceeds sequentially by the main reactor and the sub-reactor, all of which are cylindrical stirring drums. Since the filling amount of the cylindrical drum of the main reactor supplied is reduced and the size is reduced, the stirring power of the main reactor is also reduced, the shape of the cylindrical drum is also reduced, and the scale removal area is also reduced, The equipment is reduced in size and work is facilitated.

Furthermore, in the apparatus for treating putrefactive organic matter of the present invention, the cylindrical drum of the main reactor can be filled with a mixture of putrefactive organic substance and quick lime only to a volume less than half of its internal volume. Since the cylindrical drum can be filled with the contents, the amount of stagnation can be increased compared to the size of the sub-reactor, and the contents can be filled at a higher filling rate than before compared to the entire internal volume of the processing equipment. Can be accommodated and processed.

Further, the apparatus for treating putrefactive organic matter of the present invention is a continuous operation in a steady operation, and quick lime and a raw material (putrefactive organic substance) are continuously supplied. It is possible to increase the throughput as a processing device without making it unnecessarily large, so that the capacity of the quicklime conveyor and the raw material pump can be reduced, and the equipment weight and power capacity of the equipment can be reduced. It becomes possible to reduce.

In addition, since the reaction part is dispersed in the main reactor and the sub-reactor, the stirring power is dispersed in each of them to have a small capacity, and the electric power required for operating the processing apparatus is also generated by the generator. It is something that can be covered. In addition, in a sub-reactor to which quicklime is not directly supplied, a strong mixing action can be obtained by increasing the rotation speed of the main shaft.

As described above, according to the apparatus for treating putrefactive organic matter of the present invention, the shape and power capacity of the cylindrical stirring drums of the main reactor and the sub-reactor are miniaturized and dispersed, and the operation is continuous. Quicklime and raw materials and supply means (such as pumps)
In addition, since the slurry discharge pump after the reaction treatment is also small and has a smaller capacity, it becomes possible to load a generator for driving the treatment device and a quick lime silo required for the treatment together with the treatment device in the vehicle, It is also easy to move and treat a sufficient amount of spoilage organics,
The processing can be quickly performed on-site without providing a processing apparatus fixed at the place where the spoilage organic matter is generated.

Further, in the method for treating putrefactive organic matter according to the present invention, a cylindrical drum, a main shaft rotatably provided along the axis of the cylindrical drum, and a number of stirring blades radially fixed to the main shaft. A plurality of cylindrical stirring drums having a supply port formed on one side of the cylindrical drum in the axial direction and a discharge port for contents formed on the other side are connected in series by a connection pipe. Feeding and mixing wet decay organics and quicklime with the first cylindrical stirring drum as the main reactor,
A processing apparatus for putrefactive organic matter, which is arranged to sequentially pass through the remaining cylindrical stirring drum, which is a sub-reactor, and to be taken out from the discharge port of the cylindrical stirring drum located at the most downstream, as a processed lime silo; A conveyor for supplying the quicklime of the quicklime silo to the main reactor is installed on the bed of the same vehicle, and wet perishable organic matter stored outside the vehicle is treated by the perishable organic matter treatment device on the car. Because of the method of treating putrefactive organic matter, which is characterized by discharging the contents after treatment to the outside of the vehicle, even if the weight, shape and power capacity of the treatment equipment are small, high-speed and considerable amount of putrefactive organic matter can be produced in quicklime. And it can be moved to various places where spoilage organic matter is generated and treated there.

Since the processing apparatus can be moved and processed as a single unit, the amount of spoilage organic matter generated is small, and even in a small-scale business facility, it is possible to install only the tank without installing a special fixed processing apparatus. There is an effect that putrefactive organic matter can be treated hygienically.

In particular, when collecting manure from a plurality of business sites such as pig farms and poultry farms, which is conventionally performed, and treating it with quicklime, the manure is loaded on a traffic route near the processing facility. The vehicles that had passed frequently caused odor problems, but with the treatment method of the present invention, putrefactive organic substances such as manure were completely sterilized by quick lime in the establishment concerned, so that the surrounding environment was reduced. It is also very effective in terms of conservation.

[Brief description of the drawings]

FIG. 1 is a front view

FIG. 2 is a side view

FIG. 3 is a front view

FIG. 4 is a front view.

FIG. 5 is a plan view

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main reactor (cylindrical drum) 2 Secondary reactor (cylindrical drum) 3 Secondary reactor (cylindrical drum) 4 Secondary reactor (cylindrical drum) 5 Manure pit 6 Quicklime silo 7 Raw material piping 8 Raw material supply port 9 Rotary valve 10 Conveyor 12 Quicklime supply port 13 Main shaft 14 Stirrer blade 15 Exhaust port 16 Exhaust port 17 Connection pipe 18 Shutoff valve 19 Product pit 20 Valve 23 Filling level 24 Load cell 25 Connection pipe 30 Product pump 31 Exhaust pipe 33 Input chute 34 Intermediate position 38 Supply port 41 Discharge port 44 Main shaft 47 Stirring blade 51 Raw material pump 52 Main shaft 59 Product pump 76 Packing bed 78 Quick lime silo 79 Rotary valve 80 Conveyor 82 Control panel 83 Generator 85 Holo D1 Diameter (main reactor) D2 Diameter (secondary reactor)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D004 AA02 AC07 BA02 BA04 CA15 CA34 CA46 CB04 CB28 CB42 CB43 CB45 CC13 4D059 AA01 AA03 AA05 AA07 BJ03 BK12 BK13 CB01 CB06 CB12 CB17 CB21 CC01 CC10 DA04 ABA02A04 DA03

Claims (3)

[Claims] 1. A cylindrical drum, a main shaft rotatably provided along the axis of the cylindrical drum, a number of stirring blades radially fixed to the main shaft, and an intermediate position in the axial direction of the cylindrical drum. A plurality of cylindrical stirring drums having a supply port formed on one side and a discharge port for contents formed on the other side are connected in series by a connecting pipe, and the wet putrefactive organic matter and quick lime are formed. In the processing apparatus for putrefactive organic matter to be subjected to the mixing treatment, the axis of the first cylindrical stirring drum to which the putrefactive organic substance and quicklime are supplied is installed in the horizontal direction, and the supply port of quicklime is set to be higher than the axis of the cylindrical drum. An upper portion, a discharge port for contents is below the axis, and an exhaust port is provided above the axis to form a main reactor, and a cylindrical stirring drum other than the main reactor is a sub-reactor. And the outlet of the main reactor followed by the first circle The connecting pipe connecting the mold stirring drum is provided with a shut-off valve, and the cylindrical stirring drum of the sub-reactor is a cylindrical drum having a smaller diameter than the main reactor and is rotated at a higher rotation speed than the main shaft of the main reactor. And a septic organic matter treatment apparatus for mixing and treating putrefactive organic matter, which discharges a slurry-like product from the discharge port of a cylindrical stirring drum of a sub-reactor located at the lowermost stream, with quicklime. 2. The apparatus for treating putrefactive organic matter according to claim 1, wherein said sub-reactor comprises a plurality of cylindrical stirring drums. 3. A cylindrical drum, a main shaft rotatably provided along the axis of the cylindrical drum, a number of stirring blades radially fixed to the main shaft, and an intermediate position in the axial direction of the cylindrical drum. A plurality of cylindrical stirring drums having a supply port formed on one side and a content discharge port formed on the other side are connected in series by a connecting pipe, and the first cylindrical stirring drum is connected to the main reactor. The wet putrefactive organic matter and quick lime are supplied and mixed as, and sequentially pass through the remaining cylindrical stirring drum which is a side reactor, and as a processed material from the discharge port of the cylindrical stirring drum located at the most downstream side. A processing device for the putrefactive organic matter to be taken out, a quicklime silo, and a conveyor for supplying quicklime of the quicklime silo to the main reactor are installed on a bed of the same vehicle, and the wet putrefaction stored outside the vehicle. Processing of organic matter on the car A method for treating perishable organic matter, characterized in that the treated contents are discharged outside the vehicle.