JPH11156322A - Treatment of landfill waste - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of many flies even if putrefactive waste is mixed or untidy eating by a rat, a crow, a stray dog or the like or the generation of a malodor, to also prevent the scattering of combustible waste by a wind or the generation of a fire even if the combustible waste is mixed and the scattering of inorg. matter such as incineration ash or fly ash by air even if the inorg. matter is mixed and to reduce the chemical treatment or sedimentation treatment of waste water in a treatment area. SOLUTION: Waste to be subjected to landfill treatment is mixed with a binder such as clay, clayey sludge, inorg. mud, asphalt, compressed and melted plastic or the like under stirring in a mixer and the resulting mixture is molded by a molding machine to form a delayed curable solid 2 which is, in turn, flatly pressed by press machine 15 such as rollers 17, 18 or a catapillar of a bulldozor to form landfill waste 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a landfill waste that is landfilled after taking out various wastes to be landfilled by using a binder or taking out as a slow-curing solid after melting in a state in which plastic is mixed. Regarding disposal methods.

[0002]

2. Description of the Related Art Among various types of waste to be landfilled, for example, when landfilling relatively troublesome managed waste at a landfilled with a waterproof sheet in the mountains, a drainage facility is provided to treat the wastewater with chemicals. In addition to dripping and sedimentation, it is necessary to alternately cover soil in layers to prevent fire and scattering. The stable waste plastic, glass, pottery, porcelain, earth and sand, concrete and metal materials were buried almost in their original form without covering soil. On the other hand, it was also expensive to treat clay and inorganic mud produced by the foundation work of construction civil engineering, industrial waste clay produced when sand is produced from mountain rocks, and clay-like sludge produced from a concrete mixer truck.

[0003]

In recent years, the amount of general waste and industrial waste generated from homes and business establishments has increased remarkably and has become widespread due to the sophistication of living standards, mass production and mass consumption. The amount of fly is increasing, and even if landfilling is performed on a treated land covered with a waterproof sheet, a large amount of fly is generated, rats, crows, wild dogs, etc. are gathered and scattered, and fire and foul odors are generated. Or scattered by the wind, deteriorating the environment, shortening the landfill life at the treated land,
This is a major problem today, such as the high cost of wastewater treatment.

[0004] The present invention has been devised in view of the above, and even if putrefactive waste such as garbage, vegetables and fruits is mixed in the material to be treated, a large amount of fly is generated, Crow,
It can also prevent clutter and stinks caused by wild dogs, and can prevent the occurrence of wind and splattering even if flammable waste such as plastic, paper, and sheets are mixed in. Ash) and other inorganic substances can be prevented from scattering due to the wind, reducing the drainage load (chemical treatment and sedimentation treatment, etc.) on the treated land, and helping in safety and ground stabilization. Uses waste such as clay-like sludge, inorganic mud, and waste plastic melted by compression as a binder to form slow-curing solids.Especially, solids can be deformed flat to extend landfill life. It aims to provide an environmentally friendly disposal method for landfill waste.

[0005]

According to a first aspect of the present invention, there is provided a method for disposing of landfill waste, the method comprising the steps of: mixing an object to be treated, mainly waste to be landfilled, in a mixing machine with clay or clay; It is characterized in that it is obtained by stirring and mixing with a binder such as sludge, inorganic mud and the like, followed by flat squeezing of a slow-curing solid formed in a molding machine by a press such as a roller or a caterpillar of a bulldozer.

Therefore, according to the method for disposing of landfill waste according to the first aspect of the present invention, a large amount of fly is generated even if spoilage waste such as garbage, vegetables and fruits is mixed in the material to be treated. And can prevent the generation of odors and odors by rats, crows, dogs, etc.Furthermore, it can prevent the flammable waste such as plastics, papers, sheets, etc. from being scattered by the wind and the occurrence of fire. It can reduce the load (chemical treatment, sedimentation treatment, etc.) and is useful for safety and ground stabilization. Also, waste such as clay, clay-like sludge, inorganic mud, etc. can be successfully used for the formation of slow-curing solids. By using a press machine such as a caterpillar of Vultosa, the slow-curing solid can be deformed flat to extend the life of the landfill.

According to a second aspect of the present invention, there is provided a method for disposing of landfill waste, comprising the steps of: initiating an inorganic substance such as incinerated ash or fly ash to be landfilled; The flammable waste to be treated is mixed with a binder such as asphalt, clay, clay-like sludge, inorganic mud, etc. in a mixer, and then the slow-curing solid formed in the molding machine is used as a roller or a caterpillar for a bulldozer. It is characterized by being crushed flat by a press machine.

Therefore, in the method for disposing of landfill waste according to the second aspect of the present invention, regenerated asphalt and the like generated from asphalt which is generated in large quantities during road renovation are capable of removing spoilage organic matter such as sewage, fruits and vegetables. Depending on the temperature, it may be fermented or decomposed even if it is hardened, but it does not pass water as a stable binder to inorganic substances to be treated. Therefore, heavy metal is incinerated ash or fly ash (fly ash)
Can be prevented from being eluted by water.

[0009] In addition, flammable waste such as plastics, paper and sheets of building materials, incineration ash and fly ash can be prevented from being scattered by the wind and the occurrence of fire. ) Can be reduced and it is useful for safety, life extension, and ground stabilization. Further, waste such as clay, clay-like sludge, and inorganic mud can be effectively used for forming a solid material that functions as described above. In particular, it is possible to prolong the life of the landfill by deforming the slow-curing solid into a flat shape using a press machine such as a roller or a caterpillar of a bulltoza.

According to a third aspect of the present invention, there is provided a method for disposing of landfill waste according to the third aspect of the present invention, wherein waste containing plastic such as resin-based shredder dust is transferred from an inlet at one end to an outlet at the other end. Crushed and kneaded by a spiral attached to a pair of rotating shafts arranged side by side along the longitudinal direction in a substantially horizontal elongated casing and driven to rotate in the opposite direction from top to bottom between them, and then On the downstream side of the spiral, compressed by the pressing body attached to the rotating shaft, crushed, melted by friction and heat generated by compression,
Water is evaporated from an exhaust pipe provided in the casing in the vicinity of the compressed body, and after melting, is taken out as a slow-curing solid from a solidified porous plate provided in the outlet, and the slow-curing solid is a roller. It is characterized by being flattened and crushed by a press machine such as a caterpillar or a bull toza.

Therefore, in the method for disposing of landfill waste according to the third aspect of the present invention, waste containing plastic such as resin-based shredder dust is disposed in a horizontal elongated casing in a facing direction from top to bottom. Crushed and kneaded by a spiral body attached to a pair of rotating shafts driven by rotation, compressed and crushed by a squeezed body, melted by friction and heat generated by compression, evaporate moisture from the exhaust pipe, even if leftovers, vegetables, Even if spoilage waste such as fruits and inorganic substances such as incineration ash and fly ash (fly ash) are mixed in, they are taken into the impermeable binder of molten plastic and solidified to generate large amounts of fly, It can prevent the rat, crow, wild dog, etc. from scattering and generating bad smells, and also prevent flammable waste such as paper and sheets, as well as ash and fly ash from being scattered by wind. At the same time, the drainage load (chemical treatment, sedimentation treatment, etc.) on the treated land is reduced, and it is useful for safety and ground stabilization. In particular, solid materials can be flattened by a press machine to extend the life of the landfill.

According to a fourth aspect of the present invention, there is provided a method for disposing of landfill waste, which comprises the steps of: incineration ash, fly ash, fly ash, heavy metals and other inorganic substances and / or plastic, paper, wood, and the like. Combustible waste such as asphalt and clay, clay-like sludge,
It is characterized by being crushed flat by a press such as a roller or bulldozer caterpillar, and then slowly hardening solids formed in a molding machine after being stirred and mixed with an impermeable binder containing a chelating agent such as inorganic mud. I have.

Therefore, in the method for disposing of landfill waste according to the fourth aspect of the present invention, the material to be treated with inorganic substances such as incinerated ash, fly ash, heavy metals, etc. and / or combustible waste contains a chelating agent. The mixture is stirred and mixed with the impermeable binder containing.
Even if a heavy metal, for example, lead is mixed, the chelating agent can be combined with lead ions eluted in water and stabilized as a chelate compound insoluble in water.

The chelating agent is mixed very well by stirring and mixing, so that the amount of the chelating agent used can be minimized. The slow-curing solid obtained by using the water-impermeable binder can flatten the solid by a press to extend the life of the landfill. Once hardened and solidified, lead is prevented from eluting even if it is put into water for landfilling, and it can be handled almost as well as a stable type.

According to a fifth aspect of the present invention, there is provided a landfill waste disposal method according to the present invention, wherein a waste containing a plastic or heavy metal such as resin-based shredder dust is taken out from an inlet at one end and taken out at the other end. The chelating agent is crushed by a spiral body attached to a pair of rotating shafts arranged side by side in a longitudinal direction in a substantially horizontal elongated casing extending toward the mouth, and driven to rotate in a facing direction from top to bottom between them. And then kneaded, then compressed by a pressing body attached to the rotating shaft on the downstream side of the spiral, crushed,
Melts due to heat generated by friction and compression, evaporates water from an exhaust pipe provided in the casing in the vicinity of the squeezed body, and after melting, is taken out as a slow-curing solid from a solidified porous plate provided in the outlet. The slow-curing solid is flatly crushed by a press machine such as a roller or a caterpillar of a bulltoza.

Therefore, in the method for disposing of landfill waste according to the fifth aspect of the present invention, plastic such as resin-based shredder dust is rotationally driven in the horizontal elongated casing in the opposite direction from top to bottom. Crushed and kneaded by a spiral attached to a pair of rotating shafts, compressed and crushed by a squeezed body, melted by friction and heat generated by compression, evaporate water from the exhaust pipe, regardless of the presence of perishable waste The mixed inorganic material such as heavy metal can be taken into the molten plastic and taken out from the solidified porous plate as a slow-curing solid.

Even if heavy metals such as lead are mixed, the chelating agent can be combined with lead ions eluted in water and stabilized as a water-insoluble chelate compound. The chelating agent is mixed very well by stirring and mixing, so that the amount of the chelating agent used can be kept to a minimum. The late-curing solid obtained by using the non-water-permeable binder of the molten plastic can deform the solid flat by a press machine to extend the life of the landfill. Once hardened and solidified, lead is prevented from eluting even if it is put into water for landfilling, and it can be handled almost as well as a stable type.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view of a press for obtaining flat landfill waste according to a representative embodiment of the present invention, and FIG. 2 is a flattening operation by a caterpillar of a bulldozer in a landfill for the same landfill waste. FIG. 3 is a cross-sectional view of an example of a mixing molding machine used for the pre-treatment of landfill waste formation, FIG. 4 is a side view of a rotor separator used for the pre-treatment of landfill waste formation, FIG. 5 is a plan view of a main part of a sorting block of the rotor separator, FIG. 6 is a plan view of a screw crusher as a crusher used for pretreatment of the landfill waste, and FIG. FIG. 8 is a vertical sectional view of a cutter-type crusher as a crusher used for pretreatment, FIG. 8 is a cross-sectional view of a solidification molding machine for forming the landfill waste, and FIG. 9 is a horizontal cross-sectional view of the solidification molding machine. .

As shown in FIG. 1, basically, a landfill waste 1 according to the representative embodiment is a method in which an object to be treated, mainly a waste to be landfilled, is mixed in a mixer with clay, clay-like sludge, inorganic mud, A pair of upper and lower pairs which are pressed against each other by a spring 16 of a press machine 15 while conveying, for example, a cylindrical slow-curing solid material 2 formed in a molding machine after being stirred and mixed with a binder such as asphalt or molten plastic, by a belt conveyor 10. Are flattened by being crushed between the rollers 17 and 18.

At the same speed as the belt conveyor 10, the solid 2
Is driven by the drive roll 11 of the belt conveyor 10 via a power transmission mechanism 13 using a belt, a chain, or the like. If the slow-curing solid 2 is conveyed to a landfill immediately before it hardens, it can be crushed by a caterpillar of a bulldozer at the landfill to produce flat landfill waste 1. Further, the object 1 crushed flat by the press machine 15 can be further crushed flat by the caterpillar 19 of the bulldozer 15 'in the landfill A as shown in FIG.

In the case where the waste is garbage mixed with organic matter such as leftovers, fruits and vegetables, combustible matter including plastics, paper, wood, etc., and other inorganic matter such as stone and metal, the waste is wrapped in a bag or container. Explosives, such as cylinders in which gas remains by workers after the bag is broken by the open-ended blade of a bag-breaking machine equipped with a relatively coarse screw that passes metal and metal, and the mixed garbage is spread on the belt conveyor. Hand sorting is performed to remove unsuitable materials such as stones and large stones and to select valuable materials such as non-ferrous iron and cullet. Further, various magnetic metals such as steel frames are sorted by a magnetic sorter of an electromagnet. Those valuables are recycled. The remaining waste is sent to an aluminum sorter, where the aluminum is sorted.

As shown in FIGS. 4 and 5, the rotor separator 30 is provided with a medium-sized and large-sized object W4 which is conveyed from the one end to the other end with the sediment W3 of the intermediate processing object W2.
A plurality of rotating rotors 31 in which a large-diameter ring 31A and a small-diameter ring 31B are alternately arranged in the axial direction are divided into a large-diameter ring 31A and a small-diameter ring 31 of adjacent rotors.
And B are arranged on the frame 30A with a sieve gap G therebetween to form a sorting block, and the block is used to feed the workpiece W2 supplied from above one end to the other end. The rotor 31 is connected to the motor 32 of the rotary drive device 32.
M, the gear 32A, and the intermediate gear 32B are driven to rotate to convey the medium and large-sized object W4 to the other end, where the mixed small object W such as earth and sand is mixed.
3 is dropped from the screen G between the large-diameter annular body 31A and the small-diameter annular body 31B of the rotor 31 to be sorted.

The rotor 31 has a large-diameter ring 31A and a small-diameter ring 31 with a spacing piece on a square shaft 30C having a gear 32A fixed to one end.
B are alternately fitted in the axial direction. The large-diameter annular body 31A has a projection 31a on the side surface to adjust the size of the sieve G. As the sieve sorter 30, a trommel or the like of a rotary sieve is used. The medium and large-sized object W4 is then sent to the crusher 40, and the small object to be treated W3 is buried as it is when most of the earth and sand is contained. Used to form objects.

The crusher 40 is used when there are many large objects. For example, as shown in FIG. 6, the crusher 40 is decelerated with the motor 44A so as to bite into the working chamber 42A inside the casing 42 below the hopper 41 from top to bottom. The two crushing screws 43A and 43B, which are driven to rotate at a constant speed with the machine 44B, are horizontally supported, and crush large wastes such as containers and various containers and discharge them from below through a coarse screen SC. I have. This crushing breaks down plastics, wood, etc. from the composite product. Crushing screw 43A,
Protruding blades of various shapes can be appropriately provided on the outer peripheral edge of 43B to promote biting of the crushed object.

In addition, as the crusher 40, a conventional hammer crusher or rotary press crusher is appropriately selected and used according to the contaminants that are frequently contained in the waste. The screw crusher is also available in two-shaft and single-shaft types, with a rotating tapered crushing screw part, a straight crushing screw part and a plurality of longitudinal fixed blades on the inner surface of the casing and a ring-shaped fixed blade between the tapered part and the straight part. The crushing can be performed between the crushed pieces, and the crushed pieces can be crushed to a size that can eliminate the crushing.

The fragments from the crusher 40 are crushed by a crusher 40 '. As the crusher 40 ', there is a two-shaft type shearing type as shown in FIG. 7, and a rotary crushing blade for biting crushed pieces of a certain size from the top to the bottom in a pair of right and left in a casing 45. 46A and the corresponding protruding blade 47A corresponding to the mating shaft and the longitudinal fixed blade 48B forming the screen 48 are shredded to a desired size by the screen 48.
For example, a small piece of about 3 cm square or less suitable for storing in the silo 50 of FIG. As the pulverizer 40 ', a single-shaft cutter type besides the two-shaft shear type shown in the illustrated example is used.

A plurality of rotary crushing blades and fixed blades are alternately arranged in the working chamber inside the casing below the hopper, and the crushed material is shredded between them. At the bottom, a screen composed of a plurality of longitudinal fixed blade members forming a finer grid and spaced apart in the width direction of the transverse support plate is attached, and fragments having a desired size are obtained by the screen. The rotary crushing blade is mounted on a rotating shaft supported by a bearing at the center of the fixed blade, with the phase sequentially shifted in the rotation direction. A short fixed blade is also provided on the edge side of the rotary crushing blade.

In addition, as the crusher 40 ', there is a biaxial or uniaxial rotary press crusher, which includes a rotary tapered crushing screw portion, a straight crushing screw portion, a plurality of longitudinal fixed blades on the inner surface of the casing, and a tapered crushing screw. Can be crushed between the ring-shaped fixed blades between the section and the straight section.

The crushed strips are temporarily stored in a silo equipped with a metering machine. The silo 50 is provided with a rotary spiral blade for preventing a bridging phenomenon inside. FIG.
As shown in FIG. 2, a container 5 containing a non-permeable binder B mainly composed of clay and a tank 6 containing a chelating agent K are provided. In addition, a container 7 containing waste lime, cement, and asphalt, a container 8 containing resin-based shredder dust (which may include heavy metals), and a container 9 containing incinerated ash or fly ash (fly ash) are also appropriately provided. Be prepared.
At least a predetermined amount of the strip-shaped workpiece W5 and the binder B from the silo 50 and the container 5 via the screw type quantitative feeder 4 and the chelating agent K from the tank 6 via the valve and the pipe are mixed by a predetermined amount. 60.

The waste lime, cement, asphalt, resin-based shredder dust, incinerated ash and fly ash are also appropriately stored in the container 7,
8 and 9 are supplied to the stirring mixer 60 respectively. As the stirrer / mixer 60, a mixer that drives the tapered spiral blade 61 shown in FIG. 3 to rotate in a casing 62 lined with a longitudinal member 62, or a conventional mixer or kneader is used. The stirred and mixed product W6 is sent to the solidification molding machine 70. An extrusion nozzle, a perforated plate, a pair of upper and lower pressing dies, and the like are used as the solidifying molding machine 70 'immediately connected to the stirring mixer 60.

As clays for the binder B suitable for forming a slow-setting solid, bentonite (SiO ₂ and A
l ₂ O ₃ as the main component), industrial waste clay (generated by washing when sand is made from mountains), clay-like sludge (produced by washing a ready-mixed concrete mixer truck), inorganic mud (mainly construction civil engineering) Out of foundation work). As the chelating agent K, an aqueous solution containing sodium dithiocarbamate as a main component with respect to harmful lead is used, and the pH is adjusted to 8.8 to 9.8 to be alkaline. As the binder B, clay and cement are used whether the material to be treated is organic or inorganic, but asphalt is used only for inorganic material. In addition, a melted plastic described below is also used as a binder.

As shown in FIGS. 8 and 9, the solidifying molding machine 70 is configured to remove a strip-like workpiece W5 containing plastic such as resin-based shredder dust introduced from an inlet 71A at one end. Crushing, kneading, compressing and pulverizing while transporting in the longitudinal direction up to the take-out opening 71B, raising the temperature by the heat of friction and compression, and melting the plastic. The object W5 is taken out as a solid matter 2 at the take-out port 71B, and a pair of rotating shafts 70S, 70 are arranged in the elongated casing 71 in the longitudinal direction and driven to rotate in the opposite direction.
S and the helix 72A, 7 attached to each of them.
2B and compressed bodies 73A and 73B, a wear-resistant lining body 71C detachably provided in the casing 71 with a predetermined gap therebetween, and a perforated plate 75 with a nozzle for solidification at the outlet 71B. It is composed.

The squeezed body constitutes a mortar-shaped squeezed portion 73 which particularly promotes pulverization and melting. An exhaust space 76 is attached to the upper portion of the casing 71 on the downstream side of the mortar pressing portion 73 so as to remove water vapor and remove moisture.
As the solidification molding machine 70, a machine using a single screw and having a tapered portion on the outlet side is also used. By this solidifying molding machine 70, a slow-curing solid 2 having good shape retention and impervious to water is obtained. When a heavy metal is contained in the resin-based shredder dust, a chelating agent K is appropriately added. Also in this case, waste lime, cement, asphalt, incinerated ash, and fly ash are appropriately mixed.

[0034]

As is apparent from the above description, according to the method for disposing of landfill waste according to the first aspect of the present invention, an object to be treated, mainly waste to be landfilled, is mixed with clay or clay in a mixer. It is characterized by being crushed flat by a pressing machine such as a roller or a caterpillar of a bulldozer, and then slowly squeezing a slow-curing solid formed in a molding machine after stirring and mixing with a binder such as clay-like sludge and inorganic mud. Even if spoilage waste such as garbage, vegetables, fruits, etc. is mixed in the object, large amounts of fly can be prevented, and it can be prevented from being scattered by rats, crows, wild dogs, etc., and offensive odor. ,
Furthermore, flammable waste such as plastics, papers, sheets, etc. can be prevented from being scattered by the wind and fire, etc., and the drainage load (chemical treatment, sedimentation treatment, etc.) at the treatment site can be reduced, and it is useful for safety and ground stabilization. In addition, waste such as clay, clay-like sludge, and inorganic mud can be successfully used to form slow-curing solids. In particular, the slow-curing solids are flattened and landfilled with a press such as a roller or caterpillar of a bulldozer. You can extend the life of the earth.

According to the method for disposing of landfill waste according to the second aspect, incineration ash and fly ash (fly ash) to be landfilled
Ingredients and / or combustible waste such as plastics, paper, wood, etc. are mixed with a binder such as asphalt, clay, clay-like sludge, inorganic mud, etc. in a mixer, and then formed in a molding machine. It is characterized by squeezing the slow-curing solids flat with a press machine such as a roller or caterpillar of bulldozer, etc.It is produced from asphalt that comes out in large quantities at the time of road renovation and recycled asphalt etc. Depending on the temperature, fermentation or decay may occur even when solidifying perishable organic matter,
As a stable binder, it does not allow water to pass through the inorganic object.

Therefore, even if heavy metals are contained in the object to be treated such as incineration ash and fly ash (fly ash), elution by water can be prevented. In addition, flammable waste such as plastics, paper, and sheets of building materials, incineration ash, fly ash, etc. can be prevented from scattering due to wind and generating fire, reducing the drainage load (chemical treatment, etc.) at the treated land. It is useful and useful for safety, life extension and ground stabilization. Further, waste such as clay, clay-like sludge, and inorganic mud can be effectively used for forming a solid material that functions as described above. In particular, it is possible to prolong the life of the landfill by deforming the slow-curing solid into a flat shape using a press machine such as a roller or a caterpillar of a bulltoza.

According to the method for disposing of landfill waste according to the third aspect, waste containing plastic such as resin-based shredder dust is placed in a substantially horizontal elongated casing from an inlet at one end to an outlet at the other end. Crushing and kneading are performed by spirals attached to a pair of rotating shafts that are arranged side by side in the longitudinal direction and are rotationally driven in the opposite direction from top to bottom between them, and then the rotation is performed on the downstream side of the spirals. Compressed by a squeezed body attached to the shaft, crushed, melted by heat generated by friction and compression, evaporate water from an exhaust pipe provided in the casing near the squeezed body, and provided at the outlet after melting. Removed from the solidified perforated plate as a slow-curing solid, and crushing the slow-curing solid flat with a press machine such as a roller or caterpillar of a bulldozer. It is characterized by crushing and kneading waste containing plastic such as resin-based shredder dust by spiral bodies attached to a pair of rotating shafts that are driven to rotate in the opposite direction from top to bottom in a horizontal elongated casing, Compressed and crushed by a squeezed body, melted by the heat of friction and compression, evaporate water from the exhaust pipe, inorganic substances such as putrefactive waste such as garbage, vegetables and fruits, incinerated ash and fly ash (fly ash) Even if it is mixed in, it is taken into a non-permeable binder of molten plastic and solidified, and it is possible to prevent the generation of a large amount of fly, scattering by rats, crows, wild dogs, etc. Combustible waste such as sheets, incinerated ash and fly ash can be prevented from scattering due to wind.

At the same time, the drainage load (chemical treatment, sedimentation treatment, etc.) on the treated land is reduced, and it is useful for safety and ground stabilization. Particularly, the solid material is flattened by a press machine to extend the life of the landfill. Can be done.

According to the landfill waste disposal method of the present invention, incinerated ash and fly ash (fly ash) to be landfilled are treated.
And inorganic materials such as heavy metals and / or plastics, paper,
Slow-curing properties in which a combustible waste such as wood is stirred and mixed in a mixer with an impermeable binder containing a chelating agent such as asphalt, clay, clay-like sludge, and inorganic mud, and then molded in a molding machine It is characterized by crushing solids flat with a pressing machine such as a roller or caterpillar of a bulldozer, etc. The processing of inorganic substances such as incinerated ash, fly ash, heavy metals and / or combustible waste is a chelating agent. With an impermeable binder containing

Even if heavy metals such as lead are mixed, the chelating agent can be combined with lead ions eluted in water and stabilized as a water-insoluble chelate compound. The chelating agent is mixed very well by stirring and mixing, so that the amount of the chelating agent used can be kept to a minimum. The slow-curing solid obtained by using the water-impermeable binder,
The solid material is flattened by the press machine to extend the life of the landfill. Once hardened and solidified, lead is prevented from eluting even if it is put into water for landfilling, and it can be handled almost as well as a stable type.

According to the method for disposing of landfill waste according to the fifth aspect, a substantially horizontal slender casing is formed from a waste containing plastics such as resin-based shredder dust and heavy metal to an outlet at one end and an outlet at the other end. Are crushed by a spiral attached to a pair of rotating shafts which are arranged side by side in the longitudinal direction and are rotationally driven in the opposite direction from top to bottom therebetween, kneaded together with a chelating agent, and then the spiral Compressed and pulverized by a compressed body attached to the rotating shaft on the downstream side of the shaft, melted by friction and heat generated by compression, evaporate moisture from an exhaust pipe provided in the casing near the compressed body, and melt Later, the solidified perforated plate provided in the outlet is taken out as a slow-curing solid, and the slow-curing solid is pressed with a press machine such as a roller or a caterpillar of a bulldozer. It is characterized by being flattened and crushed by a spiral body attached to a pair of rotating shafts that rotate plastic such as resin-based shredder dust in a horizontal elongated casing from top to bottom in opposite directions. , Kneaded, compressed by a squeezed body, crushed, melted by the heat of friction and compression, evaporate water from the exhaust pipe, take in inorganic substances such as heavy metals mixed in with or without putrefactive waste into molten plastic It can be taken out from the solidified porous plate as a slow-curing solid.

Even if heavy metals such as lead are mixed, the chelating agent can be combined with lead ions eluted in water and stabilized as a water-insoluble chelate compound. The chelating agent is mixed very well by stirring and mixing, so that the amount of the chelating agent used can be kept to a minimum. The late-curing solid obtained by using the non-water-permeable binder of the molten plastic can deform the solid flat by a press machine to extend the life of the landfill. Once hardened and solidified, lead is prevented from eluting even if it is put into water for landfilling, and it can be handled almost as well as a stable type.

[Brief description of the drawings]

FIG. 1 is a perspective view of a press for obtaining flat landfill waste according to a representative embodiment of the present invention.

FIG. 2 is an explanatory cross-sectional view of a flattening operation by a caterpillar of a brutosa at a landfill site for the landfill waste.

FIG. 3 is a cross-sectional view of an example of a mixing molding machine used for pretreatment for forming the landfill waste.

FIG. 4 is a side view of a rotor separator used for pretreatment of the landfill waste formation.

FIG. 5 is a plan view of a main part of a sorting block of the rotor separator.

FIG. 6 is a plan view of a screw crusher as a crusher used for pretreatment of landfill waste formation.

FIG. 7 is a longitudinal sectional view of a cutter-type crusher as a crusher used for pretreatment of the landfill waste formation.

FIG. 8 is a cross-sectional view of the solidification molding machine for forming the landfill waste.

FIG. 9 is a horizontal sectional view of the solidification molding machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Landfill waste 2 Slow-hardening solid matter 15 Press machine (roller) 15 'Press machine (caterpillar of bulltoza) 17, 18 Roller 19 Caterpillar 50 Silo 60 Mixer 70, 70' Solidification forming machine 71A Input port 71B Take-out port 70S Rotating shaft 72 Helical body 73A, 73B Press body 75 Solidified perforated plate 76 Exhaust pipe A Landfill B Non-permeable binder K Chelating agent W5 Strip-shaped workpiece

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI B09B 3/00 301M 301N 301W

Claims (5)

[Claims] 1. A slow-setting solid which is formed by mixing an object mainly composed of waste to be landfilled with a binder such as clay, clay-like sludge, inorganic mud and the like in a mixer, and then molding in a molding machine. Using a press machine such as a roller or a caterpillar of a bulldozer to flatten and crush the landfill waste. 2. Inorganic substances such as incinerated ash and fly ash (fly ash) to be landfilled and / or plastic, paper,
Stir-mix the combustible waste such as wood with a binder such as asphalt, clay, clay-like sludge, inorganic mud, etc. in a mixer, and then form the slow-curing solid formed in the molding machine into a roller or brutoza. A landfill waste disposal method characterized by being crushed flat by a press machine such as a caterpillar. 3. A waste containing a plastic such as resin-based shredder dust is juxtaposed along the longitudinal direction in a substantially horizontal elongated casing from an inlet at one end to an outlet at the other end. Crushing and kneading by a spiral attached to a pair of rotating shafts that are driven to rotate in opposite directions from top to bottom, and then compressed and pulverized by a pressing body attached to the rotating shaft downstream of the spiral. Then, it is melted by heat generated by friction or compression, evaporates moisture from an exhaust pipe provided in the casing in the vicinity of the compressed body, and after being melted, solidifies from the solidified porous plate provided in the outlet and is a slow-curing solid. And disposing the slow-curing solid material flat by a pressing machine such as a roller or caterpillar of a bulltoza, and disposing of the landfill waste. 4. An asphalt, clay, clay, or incineration ash or fly ash to be landfilled, fly ash, or an inorganic material such as heavy metal and / or a combustible waste such as plastic, paper or wood. A slow-curing solid formed in a molding machine after being stirred and mixed with a water-impermeable binder containing a chelating agent such as granular sludge and inorganic mud, and crushed flat by a pressing machine such as a roller or a caterpillar of a bulldozer. Disposal method of landfill waste. 5. A waste containing a plastic or heavy metal such as resin-based shredder dust is arranged along the longitudinal direction in a substantially horizontal elongated casing from an inlet at one end to an outlet at the other end. Crushed by a spiral attached to a pair of rotating shafts that are driven to rotate in the opposite direction from top to bottom, kneaded with a chelating agent, and then attached to the rotating shaft downstream of the spiral Compressed by the pressing body, crushed, melted by the heat of friction and compression, evaporate water from the exhaust pipe provided in the casing in the vicinity of the squeezing body, solidified porous plate provided in the outlet after melting Landfill waste characterized by being crushed flat by a pressing machine such as a roller or a caterpillar of a bulldozer, and taking out the slow-curing solid from How to dispose of waste.