JP2000042519A - Waste treatment device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To cut, crush or agitate waste and to easily circulate and move the waste in an agitating vessel by rotating the revolving shafts of agitating members having pawls arrays spirally arrayed with a plurality of pawls apart from each other after feeding the waste. SOLUTION: A treating vessel 4 is internally provided with the agitating members and a pair of the revolving shafts 24 are passed through the wall part side on the opposite side from a rotational drive assembly 8 therein. The respective revolving shafts 24 are arranged parallel with each other. The respective revolving shafts 24 are provided with the plural pawls 26. All the pawls 26 are formed to the same length and six pieces of the pawls 26 are parted at equal intervals on the half circumference side of the respective revolving shafts 24, thereby forming the spiral pawl array 28. Further, the apexes of the spiral pawl arrays 28 of the respective sets are connected to form spiral fin parts 30. When a pair of the revolving shafts 24 are rotated respectively in an outer side direction, the pawls 26 agitate, crush and mixed the treating materials feed into the treating vessel 4. The fin parts 30 intensify these effects.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste treatment apparatus suitable for extinction treatment in which waste is composted or eliminated with little residue.

[0002]

2. Description of the Related Art Heretofore, garbage and sludge have been incinerated by microorganisms to avoid incineration. In addition, plastics such as PET bottles and styrofoam, and paint sludge generate harmful gas when incinerated, and thus have to rely on landfills.

[0003]

However, in the composting process, although the effect on the environment can be reduced, it is necessary to treat the compost obtained by the process. In addition, plastics, paint sludge, and the like are preferably treated by decomposition in order to prevent leaching of harmful substances and generation of offensive odor around the landfill. Therefore, recently, a treatment method for decomposing and eliminating garbage, sludge, and plastics by catalytic action or the like by further developing composting has been found. According to this method, waste is eliminated without generating harmful exhaust gas and leaving almost no residue, so that work after treatment is omitted, and the impact on the environment is reduced. Therefore, an object of the present invention is to provide a waste disposal apparatus suitable for composting and extinction treatment.

[0004]

The following inventions have been completed as means for solving the above-mentioned problems. That is,
The present invention includes a waste treatment tank and a stirring member provided in the treatment tank, and the stirring member includes a pair of rotating shafts arranged substantially in parallel, and a plurality of claws provided on each rotating shaft. Has a claw arrangement arranged in a spiral manner at a distance, and the rotation axis is
The disposal tanks are disposed in parallel at a distance substantially equivalent to the sum of the rotation radii of the claws attached to the respective rotation shafts, and the bottom of the processing tank is formed following the rotation trajectory of the claws attached to the respective rotation shafts. An object processing device. According to the present invention, after the waste is put into the stirring tank, the rotating shaft of the stirring member is rotated, so that the waste is cut or crushed, or the waste is stirred, and the waste is easily removed. Is circulated in the stirring tank.

In a preferred embodiment of the present invention, a spiral fin is formed along the top of the nail. By forming the fins, the stirring, crushing and moving capabilities are further improved.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail, and will be specifically described with examples. The waste to be treated by the waste treatment apparatus of the present invention is not particularly limited. In the treatment, agitation and pulverization can be applied to wastes which are considered to be effective. Examples of such waste include various garbage such as vegetables, fish, meat, bones, shells, and paper, sludge from food processing factories and various factories, organic and inorganic waste discharged from septic tanks, factory wastewater treatment plants, and the like. Various kinds of plastics such as sludge, paint sludge discharged from a coating plant, polyethylene, vinyl chloride resin, styrene resin and the like.

[0007] The treatment methods preferably applied in the waste treatment apparatus of the present invention are pulverization treatment, composting utilizing the decomposition of organic or inorganic substances by microorganisms, and elimination (reduction). In addition, in composting and disappearing, in addition to waste, sawdust, coffee grounds, rice hulls, and the like are preferably added for moisture adjustment and volume adjustment.

[0008] The processing apparatus of the present invention has a processing tank and a stirring member as main components, and includes, as auxiliary parts, a device for adjusting the temperature in the processing tank, a device for supplying moisture, a ventilation device, a driving device for the stirring member and the like. . The stirring member will be described. The stirring member of the present invention includes at least a pair of rotating shafts, and a claw array including a plurality of claws provided on each rotating shaft.
The two rotating shafts are arranged substantially in parallel with each other in pairs. Further, it is preferable that each rotation axis is arranged horizontally.

The pawl arrangement provided on each rotating shaft is formed from a plurality of pawls. The plurality of claws forming one claw array are spaced apart and spirally arranged with respect to the rotation axis. It is preferable that the claws are equally spaced apart from each other. The shape of the nail is not particularly limited. For example, it can be in the shape of a bar, a plate, or a saw.
The claws may be straight, bent, or even curved. It is preferable that at least a plurality of claws forming one nail array have the same length. The angle at which each nail in one nail array is separated is not particularly limited. It is set according to the type of waste to be treated, the type of treatment, and the like.

[0010] In each claw arrangement formed on each rotation axis in a pair of rotation shafts, it is preferable that each claw has the same length and the same spiral shape, that is, the claw arrangement has the same form. . Preferably, in a pair of rotating shafts,
It is preferable that the claws on the respective rotation shafts are equally spirally spaced and have the same spiral shape.

Further, it is preferable that a fin is formed along the top of each claw formed on the rotation axis. The fin becomes helical with respect to the rotation axis along the top of the helical claw array. By forming the fin portion, the effects of stirring, pulverizing, and moving the processed material in the processing tank are further improved.

The claw array provided on the rotation shaft forms a rotation trajectory when the rotation shaft rotates. The pair of rotation shafts are respectively arranged so close that the rotation trajectories do not overlap. That is, they are brought close to each other so that the claws provided on the rotating shaft do not come into contact. Specifically, the rotation shafts are arranged so that the distance between the claws is about 100 to 150 mm. The rotating shaft is provided in the processing tank, and is rotatable by a driving device provided outside the processing tank. It is preferable that each of the pair of rotation shafts rotates in opposite directions. The rotating shaft is provided almost completely inside the processing tank in a predetermined direction, and the rotation of the rotating shaft agitates substantially the entire waste put into the processing tank.

[0013] The processing tank provided with the rotating shaft preferably has an inner lower portion shaped like the rotation locus of the rotating shaft. That is, it is preferable to provide the bottom part and the lower part of the side part following the rotation locus to the extent that the claw provided on the rotation shaft does not contact. Therefore, when a pair of rotating shafts are provided, it is preferable that the bottom of the processing tank and the lower part of the side have a substantially W shape. It is particularly preferable that the lower part of the inside of the processing tank follow the lower half of the rotation locus. Thus, the lower portion inside the processing tank has a shape following the rotation locus of the stirring member,
It is preferable that a portion above the lower portion of the side portion of the processing tank is formed substantially vertically close to a claw provided on the rotating shaft. An inlet for charging waste into the processing tank is provided above or above the side of the processing tank.

[0014] The processing tank is also provided with a heating device and a temperature adjusting device capable of adjusting the temperature of the waste in the processing tank. This is because an optimum temperature environment is formed in the treatment tank according to the type of waste and treatment. The heating device may be a hot air blower, or may be based on another mechanism. Generally, the treatment tank for this kind of waste treatment has 3
Since a temperature of 0 to 70 ° C. is preferable as the processing temperature, a hot air blowing device is preferable as the heating device. Further, it is preferable that the temperature adjusting device includes a temperature measuring device capable of measuring the temperature of the waste in the processing tank, preferably in the processing tank.

[0015] In the processing tank, for the processed material in the processing tank,
A sprinkler is provided to supply a suitable amount of water or supply a chemical solution or the like. It is preferable that the spraying device is configured so that water or a chemical solution can be sprayed from above the processed material. It is preferable that the sprinkler has a liquid storage tank outside the processing tank.

Next, a specific example of the waste disposal apparatus thus formed will be described, and an example of its use will be described. 2 to 7 show one embodiment of the processing apparatus of the present invention. 2 to 4 mainly show the appearance of the processing apparatus 2. FIG. 2 is a plan view of the processing apparatus 2 of the present embodiment, FIG. 3 is a front view of the processing apparatus 2, and FIG. 4 is a perspective view of the side of the processing apparatus 2. The treatment apparatus 2 has a treatment tank 4 for charging and treating waste. The treatment tank has a stirring member 22 and a water sprinkler 20 inside the treatment tank. A rotary drive device 8, a hot air blower 10, and a water tank 14 are provided.

As shown in FIGS. 2 and 3, the processing tank 4
It has a substantially rectangular parallelepiped box shape. The treatment tank 4 has a substantially semicircular upper part, and a part of this upper part is formed to be openable and closable, and serves as a waste inlet 6. This processing tank 4
As shown in FIG. 4 and FIG. 5, two rotating shafts 24 are disposed so as to penetrate the lower side of the inside. Is provided with a driving device 8 for driving the rotation shaft 24 to rotate. Two driving devices 8 are provided corresponding to the rotating shaft 24.

Further, the processing tank 4 is provided with a hot air blower 10 for adjusting the temperature of the processing tank and the temperature of the processed material in the tank. The hot air blower 10 is provided slightly above one side of the same wall provided with the rotary driving device 8 so that hot air can be supplied to an opening formed in the processing tank 4. Has become. In addition, the hot air blower 10 is configured to receive a temperature measurement result obtained by a processing object temperature measurement device arranged at the bottom of the processing tank, and a predetermined set temperature is set in accordance with the measurement result. It has a control function that can be maintained at all times.

A water tank 14 is also provided on the side of the rotation driving device 8 of the processing tank 4. A pipe 16 from a water source is connected to a lower portion of the water tank 14. Water tank 1
At the upper part of 4 is a cock, to which a water supply pipe 18 drawn into the treatment tank 4 is connected.
As shown in FIG. 4, the water supply pipe 18 extends horizontally above the processing tank 4 to the opposite side wall, and a plurality of openings are formed in a portion corresponding to the inside of the processing tank 4. Each opening is provided with a shower member as a water sprinkling device 20 that sprinkles water evenly on an object.

Next, the inside of the processing tank 4 will be described with reference to FIGS. A stirring member 22 is provided inside the processing tank 4. FIG. 5 is a perspective view of the processing apparatus 2 as viewed from above, FIG. 6 is a perspective view of the processing tank 4 as viewed from the front, and FIG. 7 is a perspective view showing only the stirring member 22 in the processing tank 4. It is. A pair of rotating shafts 24 pass through the inside of the processing tank 4 from the rotation driving device 8 to the opposite wall portion side. The rotating shafts 24 are arranged inside the processing tank 4 in parallel with each other. Each rotating shaft 24 has a plurality of claws 26. The claw 26 has such a rigidity that the processed material can be stirred or pulverized, and in the present embodiment, is formed of stainless steel. Each of the claws 26 is an elongated linear plate, and all claws are formed to have the same length. One rotation shaft 24 has a total of 12 claws 26
Are formed, and six claws 26 are a set,
Six pawls 26 are provided on each half circumference of the rotation shaft 24,
Helical claw arrangements 28 are formed at equal angles and spaced apart. It is to be noted that the pawls 26 are arranged on one half-periphery side and the other half-periphery side of the rotating shaft 24 so as to be preferably contrasted with each other.
4 is arranged so as to form a helical shape as a control. Further, a spiral fin portion 30 is formed by connecting the tops of the spiral nail arrays 28 of each set. The fin portion 30 must also have appropriate rigidity, and is made of stainless steel in the present embodiment. The fin portion 30 is formed from a band-like plate-like body. As described above, the helical claw array 28 of the claw 26 is formed on each rotation shaft 24 on each half circumference side of the rotation shaft 24, and each claw array 2
A helical fin portion 30 connecting the fins 8 is formed symmetrically with respect to the rotating shaft 24.

The two rotating shafts are arranged such that the spiral fins are spaced apart by about 30 mm so that the rotating trajectories do not overlap with each other, so that they are parallel and almost at the same height. Processing tank 4 having such a stirring member 22
As shown in FIG. 6, the lower part 32 of the lower part of the rotation path is approximately 1
It is formed following the rotation locus so as to be separated by 5 mm. Therefore, the lower part 32 of the processing tank 4 is configured such that two semi-cylindrical bodies each having a curved portion below are arranged side by side so that a curved portion comes down.

According to the processing apparatus 2, when the pair of rotating shafts 24 constituting the stirring member 22 rotate outward, respectively, the processing object put into the processing tank 4 is stirred by the claws 26. Crushed and mixed. Fin part 30
Are provided, these effects are increased by the fin portion 30. By these actions, the processing object can sufficiently contain air. Further, since the rotating shafts 24 rotate in the opposite directions, the processed material circulates and moves in the processing tank lower part 32 side, and is uniformly mixed.

Next, an example of use of the processing apparatus 2 thus formed will be described. In this usage example, a process of extinguishing garbage (a mixture of vegetables, meat, fish, bones, shells, paper, and the like, mainly using leftovers) will be described. 200 L of a mixture of coffee grounds, rice husk, and sawdust is charged into the processing tank 4 as a carrier, and stirring by rotation of the stirring member 22 in the processing tank 4 and heating of the processing tank 4 are started. The rotation speed of the stirring member 22 was set to 10 rpm, and the rotation direction was set to the outward direction. Moreover, the temperature was 30-70 degreeC.

Next, the ceramic catalyst was added in an amount corresponding to about 1% of the total weight (with a specific gravity of 1) of the garbage to be treated with the carrier. Here, the ceramic catalyst is obtained by ceramizing natural ore. The ceramic catalyst has a function of activating digestive enzymes and bacteria originally provided in the object to be extinguished and the carrier, and improving its action. After adding the ceramic catalyst,
Mixing of the catalyst and the carrier was continued for about 30 minutes. Then, 10 kg of garbage for processing material preparation is added, and further,
After about 12 hours of continuous stirring and heating, an extinguishing material suitable for garbage was obtained.

[0025] 100 garbage of garbage
g divided into 1 to 3 times, and water containing a mineral component (such as water obtained by immersing a natural ore for a certain time or longer, p
H is a neutral to weak alkali, and preferably has a pH of 7 to
After adding 10 L of the mixture (8), stirring and heating were continued, a reduction of 90% or more was confirmed in about 2 hours for one addition. That is, the processing material in the processing tank 4 is in a state before adding garbage in appearance,
Most of the garbage was gone. During processing, no unusual odor or the like was generated.

[0026]

According to the present invention, it is possible to provide a waste treatment apparatus suitable for composting and extinction treatment.

[Brief description of the drawings]

FIG. 1 is a view schematically showing a processing apparatus, in which (a) is an internal structural view when viewed from above a processing tank, and (b)
FIG. 2 is an internal structure diagram when the processing tank is viewed from the front.

FIG. 2 is a plan view of the processing apparatus 2 of the present embodiment.

FIG. 3 is a front view of the processing apparatus 2.

4 is a perspective view of a side surface of the processing apparatus 2. FIG.

FIG. 5 is a perspective view of the processing apparatus as viewed from above.

FIG. 6 is a perspective view of the processing tank viewed from the front.

FIG. 7 is a perspective view showing only a stirring member in a processing tank.

[Explanation of symbols]

 Reference Signs List 2 processing device 4 processing tank 8 rotation drive device 10 hot air blowing device 14 water tank 22 stirring member 24 rotation axis 26 claw 28 claw array 30 fin portion 32 lower part of processing tank

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D059 AA02 AA03 AA07 BA01 BA25 BA27 BA29 BF15 BF16 BJ03 BJ04 BJ07 BJ14 BK11 CA01 CB10 CB30 CC01 DA63 DB33 DB36 EA06 EB01 EB06 4H061 AA03 CC32 CC42 CC47 CC51 GGGG GG43

Claims (2)

[Claims] 1. A waste treatment tank, and a stirrer provided in the treatment tank, wherein the stirrer comprises a pair of rotating shafts arranged substantially in parallel, and a plurality of rotating shafts provided on each rotating shaft. Claw arrangement in which claws are spaced apart and spirally arranged, and the rotating shafts are arranged in parallel at a distance substantially equivalent to the sum of the turning radii of the claws attached to each rotating shaft, and A waste disposal apparatus in which the bottom of the tank is formed according to the rotation locus of a claw attached to each of the rotating shafts. 2. The waste disposal apparatus according to claim 1, further comprising a spiral fin formed along a top of said claw.