JP2001162620A - Waste volume reducing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste volume reducing system capable of efficiently recovering a waste by volume reducing a waste. SOLUTION: The waste volume reducing apparatus comprises a volume reducing tank 2 for storing a waste, an agitator 15 having agitating blades 16 in the tank 2, and an electric heater 13 for heating the tank 2. The waste is charged in the tank 2, and heated to be volume reduced by the heater 13 while agitating by the agitator 15. Thus, a bulky waste like a foamed polystyrol is volume reduced, and a wide space is not required to storage it, and the polystyrol can be transported to a treating facility at a low cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste volume reducing apparatus for heating and reducing volume of waste polystyrene generated as industrial waste and garbage and the like.

[0002]

2. Description of the Related Art Styrofoam, for example, is widely used as a packing material for foods and electric appliances, and used Styrofoam is collected by a garbage truck and transported to a treatment facility.

[0003]

However, since styrofoam is bulky, the efficiency of loading a garbage truck is low, and the cost of collecting garbage must be increased due to the need to transport the garbage truck many times. have.

[0004] In view of the above, it is an object of the present invention to provide a waste volume reducing treatment apparatus capable of efficiently collecting waste by reducing the volume.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a waste volume reducing treatment apparatus according to claim 1, wherein a waste input port is provided at an upper portion and a discharge port is provided at a lower portion. And a stirrer having a stirring blade in the volume reduction tank,
And an electric heating means for heating the volume reduction tank.

According to a second aspect of the present invention, in the waste volume reducing apparatus, the volume reducing tank has a substantially cylindrical shape, and the agitator reduces the volume of a stirring shaft having stirring blades from the upper surface of the volume reducing tank. It is characterized in that it is inserted into a tank and the upper end of the stirring shaft is connected to a stirring motor.

According to a third aspect of the present invention, there is provided a waste volume reducing treatment apparatus, wherein an input hopper is disposed above the input port.
The input hopper is characterized in that crushing means for crushing waste to be input is provided.

According to a fourth aspect of the present invention, an exhaust pipe is connected to an upper portion of the volume reducing tank, and an end of the exhaust pipe is connected to an intake port of a generator engine. It is characterized by being connected.

According to a fifth aspect of the present invention, in the waste volume reducing apparatus, the charging hopper is provided with an opening / closing lid.
The exhaust pipe is provided with an intake valve for introducing outside air, and the opening / closing control of the intake valve is linked with the opening / closing operation of the opening / closing lid.

Further, in the waste volume reducing treatment apparatus according to claim 6, the exhaust pipe is provided with a heat radiating function.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to a waste volume reducing apparatus according to the first aspect of the present invention, a waste volume reducing apparatus is installed in a waste generation facility or a recovery facility, and the heating volume is reduced. When the amount of waste that can be generated, for example, the amount of polystyrene foam increases, the polystyrene foam is put into a volume reduction tank, and the volume is reduced by heating with an electric heating means such as an electric heater while stirring with a stirrer. Due to this volume reduction, even a large amount of Styrofoam is reduced in bulk and does not require a large space for storage, and can be transported to a processing facility or the like at low cost.

According to the second aspect of the present invention, the volume reducing tank has a substantially cylindrical shape, and has a simple structure in which a stirring shaft is inserted from the upper surface of the volume reducing tank. Any waste such as garbage can be thrown in to reduce the volume by heating, making the device highly flexible.

According to the third aspect of the present invention, since the crushing means for crushing the waste is provided in the input hopper of the volume reducing tank, the waste is finely crushed and then reduced. It can be put into a storage tank and the volume reduction in the reduction tank can be performed smoothly.

According to the fourth aspect of the present invention, since the exhaust pipe of the melting tank is connected to the intake port of the engine of the generator, the odor gas generated when the waste is heated and reduced in volume. It can be led to the generator engine for combustion deodorization.

According to the fifth aspect of the present invention, the opening / closing lid of the charging hopper of the volume reducing tank and the opening / closing of the intake valve for introducing outside air into the exhaust pipe are linked with each other. If the hopper lid is closed, the intake valve of the exhaust pipe is opened to guide the outside air to the generator engine in addition to the odor gas in the volume reduction tank. And no damage to the engine.

Further, when the opening / closing lid of the charging hopper is opened, the intake valve of the exhaust pipe is closed and the odor gas in the volume reduction tank is strongly sucked, so that the odor gas does not leak outside.

Further, according to the waste volume reducing treatment apparatus of the sixth aspect, the exhaust pipe is provided with a heat radiation function such as lengthening the exhaust pipe or attaching a heat radiating plate to the exhaust pipe to increase the heat radiation area. In addition, the temperature of the gas introduced into the engine is not lowered and the engine is not damaged.

[0018]

Embodiments of the present invention will be described below with reference to the drawings.

The waste volume reducing apparatus 1 has a substantially cylindrical volume reducing tank 2 for heating and reducing the volume of the waste. A discharge port 4 for discharging the reduced volume of waste is provided, and a slide type discharge gate 5 is attached to the discharge port 4.

An input hopper 6 is disposed above the input port 3, and a crusher 7 for finely crushing bulky waste is disposed inside the input hopper 6, An opening / closing lid 8 is provided at the entrance of the hopper 6.

The crushing machine 7 has a substantially rod-shaped crushing blade 10 radially fixed to a shaft 9 rotatably attached to the input hopper 6 at predetermined intervals, and a substantially rod-shaped crushing blade 10 at a hopper position facing the crushing blade 10. A plurality of fixed blades 11 are protruded so as not to contact the crushing blade 10 so that the crushing blade 10 rotates while sliding through the blades of the fixed blade 11. When the crushing blade 10 is rotated by the motor 12 in the direction of the arrow in FIG. It falls into the lower volume reduction tank 2. The crusher 7 does not need to have the above-mentioned structure, but may be any crushing means as long as it can crush waste such as bulky polystyrene into an appropriate size.

An electric heater 13 which is an electric heating means is provided on a peripheral wall of the volume reducing tank 2.
The heat insulating material 14 is stuck on the surface of the device to form a heat insulating structure. In addition, as shown in FIG. 3, the electric heater 13 attaches an electric heater such as a rod-shaped, linear or planar heater to an appropriate position on the peripheral wall and the bottom wall of the volume reducing tank 2. Further, a heating method such as induction heating or high-frequency heating may be adopted as the electric heating means of the volume reduction tank 3 instead of the electric heater 13.

Further, the volume reducing tank 2 is provided with a stirrer 15 for promoting the volume reduction of the waste. This stirrer 15
The agitating shaft 17 having the stirring blade 16 is inserted from the upper part of the volume reducing tank 2, and the upper end of the stirring shaft 17 is connected to a stirring motor 18 provided on the ceiling wall of the volume reducing tank 2. The stirring blade 16 may be any one that can stir the waste so as to efficiently heat the waste, and may be a plate-shaped blade as shown in FIG. 3, or a rod-shaped blade or a screw-shaped blade. good.

In the vicinity of the volume reducing tank 2,
A generator 19 for generating electric power for driving the electric heater 13 and the stirrer 15 is provided. The electric power is generated by driving a power generation engine 20 in the generator 19 and supplied to each device. If commercial power can be used, this generator 19 does not need to supply power to each device.
It may be used only for deodorization described later.

Reference numeral 21 denotes an exhaust pipe connected to the upper part of the volume reduction tank 2 for exhausting odorous gas generated when heating the waste. The end of the exhaust pipe 21 is connected to the engine 20 of the generator 19. The exhaust gas in the volume reduction tank 2 is supplied to the intake side of the engine 20 and burned together with the fuel to perform a deodorizing treatment.

A filter 22 such as a wire mesh is attached to the connection between the volume reducing tank 2 and the exhaust pipe 21 so that the small pieces generated by the crushing of the waste are not sucked to the engine 20 side.

The temperature of the odor gas discharged from the volume reduction tank 2 is considerably high, and if this high-temperature odor gas is introduced into the engine 20 as it is, there is an obstacle. As long as possible, or by attaching a number of heat sinks to the outer periphery of the exhaust pipe 21,
The exhaust pipe 21 has a heat radiation function. If further cooling is necessary, a forced cooling means such as a water cooling device may be employed.

Reference numeral 23 denotes an intake valve for introducing outside air provided in the middle of the exhaust pipe 21. The intake valve 23 controls opening and closing in conjunction with the opening and closing operation of the opening and closing lid 9 disposed at the inlet 3 of the volume reduction tank 2. . When the opening / closing lid 8 is closed, the intake valve 23 is opened, and the odor gas in the volume reduction tank 2 and the outside air are mixed to form the engine 2 of the generator 19.
To zero, preventing insufficient intake of the engine 20 and
The gas temperature is lowered to prevent damage inside the engine 20. When the opening / closing lid 8 is opened, the intake valve 23 is closed, and the odor gas in the volume reduction tank 2 is strongly sucked to reduce the volume of the odor gas.
This prevents odor gas inside from leaking out.

Reference numeral 24 denotes a recovery tank for recovering styrene and the like contained in the odor gas when styrofoam, which is waste, is heated and melted, and is disposed near the end of the exhaust pipe 21 where the odor gas is sufficiently cooled. Then, liquid styrene and the like are generated and recovered by the cyclone effect of the cyclone type tank.

Reference numeral 25 denotes a control panel, which controls the operation of the crusher 7, the electric heater 13, the stirrer 15, and the like driven by the electric power from the generator 19.

When the waste volume is reduced by the waste volume reducing apparatus, for example, styrene foam, the apparatus is installed in a styrofoam generation facility or a recovery facility, and when a certain amount of styrofoam is collected. Then, after driving the engine 20 of the generator 19 to start supplying power to each device, the opening / closing lid 8 of the charging hopper 7 is opened and an appropriate amount of styrene foam is charged. The supplied polystyrene is finely sheared by the crusher 7 and falls into the volume reduction tank 2. When an appropriate amount of styrofoam is put into the volume reduction tank 3, the opening / closing lid 8 is closed.

The styrofoam is supplied to the stirrer 15 in the volume reduction tank 2.
The electric heater 13 is stirred while being stirred by the stirring blade 16 of FIG.
And the volume is reduced by melting.

When the melting of the polystyrene foam is completed, the discharge gate 5 is opened to discharge the fluidized polystyrene foam to the pallet P or the like. The fluidized polystyrene foam is solidified by natural cooling.

On the other hand, the odor gas generated when the polystyrene foam is heated and melted is sucked through the exhaust pipe 21, styrene and the like are collected in the collection tank 24, and then guided to the engine 20 side of the generator 19, and The odor components are burned and decomposed, thereby reducing odor. At this time, the exhaust pipe 21
Is opened in conjunction with the closing of the opening / closing lid 8 of the input hopper 6, and the outside air is discharged together with the odor gas into the engine 2.
In addition, the intake air is guided to zero so that the intake is not insufficient, and the temperature of the odor gas is lowered so that the engine 20 is not damaged. Further, when the opening / closing lid 8 is opened, the intake valve 23 of the exhaust pipe 21 is closed, and the odor gas in the melting tank 2 is strongly pulled to prevent the odor from leaking to the outside.

When the volume reduction processing is performed in this manner, the bulk is reduced and a large space is not required for storage, and the transportation to a processing facility or the like can be performed at low cost.

[0036]

As described above, according to the waste volume reducing apparatus according to the first aspect of the present invention, a volume reducing tank having a waste inlet at an upper portion and a discharge port at a lower portion, Since a stirrer having stirring blades in the container and an electric heating means for heating the volume reducing tank are provided, the volume of waste can be reduced at a waste generation facility or a collection facility, and a large space for storage can be provided. It is not necessary and can be transported to treatment facilities at low cost. In addition, since the volume reduction process is not a burner heating type but an electric heating type, there is no danger of fire or the like, and the process is safe.

According to a second aspect of the present invention, the volume reduction tank has a substantially cylindrical shape, and the stirrer includes a stirring shaft having stirring blades, which is disposed above the volume reduction tank. Since it is inserted into the inside and the upper end of the stirring shaft is connected to the stirring motor, any waste such as styrofoam or garbage can be put in and heated to reduce the volume, resulting in a highly flexible device.

According to a third aspect of the present invention, a charging hopper is disposed above the charging port, and crushing means for crushing waste to be charged is provided in the charging hopper. Since it is equipped, the waste can be finely crushed and then put into the volume reduction tank, and the volume reduction in the volume reduction tank can be performed smoothly.

According to a fourth aspect of the present invention, an exhaust pipe is connected to an upper portion of the volume reducing tank, and an end of the exhaust pipe is connected to an intake port of a generator engine. As a result, the odor gas generated when the waste is heated and reduced in volume can be guided to the generator engine for combustion and deodorization.

According to a fifth aspect of the present invention, the waste hopper is provided with an opening / closing lid, the exhaust pipe is provided with an intake valve for introducing outside air, and the opening / closing control of the intake valve is controlled. Since it is linked with the opening and closing operation of the opening and closing lid,
When the opening / closing lid is closed, the intake valve is opened to take in the outside air together with the odor gas to eliminate the shortage of intake of the generator engine,
In addition, when the opening / closing lid is opened, the intake valve is closed and the odor gas in the volume reduction tank is strongly sucked to prevent the odor gas from leaking out.

According to the sixth aspect of the present invention, since the exhaust pipe is provided with a heat radiating function, it is possible to reduce the temperature of the gas introduced into the engine and damage the engine. Absent.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a waste volume reducing treatment apparatus according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is an enlarged cross-sectional view of a volume reduction tank portion taken along the line AA of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Waste volume reduction processing apparatus 2 ... Volume reduction tank 3 ... Input port 4 ... Discharge port 6 ... Input hopper 7 ... Crusher (crushing means) 8 ... Opening / closing lid 13 ... Electric heater (electric heating means) 15 ... Stirrer Reference Signs List 16 stirring blade 17 stirring shaft 19 generator 20 engine 21 exhaust pipe 23 intake valve 25 control panel

Claims (6)

[Claims] 1. A volume reduction tank having a waste inlet at an upper part and a discharge port at a lower part, a stirrer having a stirring blade in the volume reduction tank, and an electric heating means for heating the volume reduction tank. A waste volume reduction processing device comprising: 2. The volume reduction tank has a substantially cylindrical shape, and the stirrer inserts a stirring shaft having stirring blades into the volume reduction tank from an upper surface of the volume reduction tank, and connects an upper end of the stirring shaft to a stirring motor. The waste volume reduction processing apparatus according to claim 1, wherein 3. An input hopper is disposed above the input port.
3. The waste volume reduction processing apparatus according to claim 1, further comprising a crushing means for crushing waste to be charged in the input hopper. 4. The waste according to claim 1, wherein an exhaust pipe is connected to an upper portion of the volume reduction tank, and an end of the exhaust pipe is connected to an intake port of a generator engine. Volume reduction equipment. 5. The charging hopper has an opening / closing lid,
5. The waste volume reducing apparatus according to claim 4, wherein the exhaust pipe is provided with an intake valve for introducing outside air, and the opening / closing control of the intake valve is linked with the opening / closing operation of the opening / closing lid. 6. The waste volume reduction processing apparatus according to claim 4, wherein the exhaust pipe has a heat radiation function.