KR100639643B1 - Multi recycling equipment of waste using exhaust heat and method thereof - Google Patents

Abstract

The present invention uses the waste heat discharged from a small incinerator in the process of processing waste wood, waste synthetic resins and waste vinyl containing hazardous compounds, hazardous waste compounds by controlling the temperature of the waste heat according to the type of waste Waste wood and waste synthetic resin comprising pyrolysis (carbonization) to produce activated carbon (carbide) and RPF, and further, waste synthetic resin and waste vinyl to produce plastic raw materials and RPF, melting and evaporating and condensing liquid waste The present invention relates to a multifunctional waste recycling apparatus using waste heat for recycling to a liquid phase such as an organic solvent and a method thereof.

To this end, the present invention, and a second kiln type regenerative furnace (1) for burning the auxiliary burner, regenerated activated carbon (carbide) and RPF; A temperature controller (2) for controlling temperature by inducing waste heat supplied from the heat storage furnace; A pyrolysis (carbonization) device (3) capable of producing activated carbon (carbide) and RPF by pyrolyzing (carbonizing) waste wood and waste synthetic resin containing harmful substances using the waste heat induced by the temperature control device; A melting apparatus 4 that melts the waste synthetic resin and the waste vinyl so as to be recycled into recyclable recycled raw materials and RPF using the waste heat induced by the temperature control device; The evaporation gas generated by evaporating the liquid waste by using the waste heat induced by the temperature control device is introduced into the condenser, and the evaporated gas is recycled into a recyclable liquid such as an organic solvent condensed by cooling water. Condensation device (5), First, by treating the waste wood and waste synthetic resin containing harmful chemicals by the pyrolysis (carbonization) method to produce the recycled activated carbon (carbide) and recycled oil to incineration waste synthetic resin and waste wood It is possible to prevent secondary pollution from air pollution and incineration residues generated by the existing methods, and to reduce the initial investment cost by miniaturizing the treatment facilities rather than incineration facilities. Second, pyrolysis (carbonization) Regeneration activity produced in the internal process of fuel in regenerator to obtain waste heat required for cooling, melting and evaporation And because it uses the RPF and the like is effective to separate the energy savings do not require fuel of the waste treated.

Description

Multifunctional waste recycling apparatus using waste heat and its method {MULTI RECYCLING EQUIPMENT OF WASTE USING EXHAUST HEAT AND METHOD THEREOF}

1 is a schematic view showing a multifunctional recycling apparatus using waste heat according to the present invention.

Figure 2 is a schematic diagram showing a shuttle kiln type heat storage furnace according to the present invention.

3 is a schematic configuration diagram showing a pyrolysis (carbonization) device according to the present invention.

Figure 4 is a schematic diagram of a condenser according to the pyrolysis (carbonization) device according to the present invention.

5 is a schematic view showing a melting apparatus according to the present invention.

6 is a schematic view showing an evaporation and condensation device according to the present invention.

         * Description of the symbols for the main parts of the drawings *

1: Kiln-type heat storage furnace 2: Temperature controller

3: pyrolysis (carbonization) device 4: melting device

5: evaporation and condensation device 6: condenser

8: storage tank

The present invention relates to a multifunctional waste recycling apparatus and method thereof using waste heat, and more particularly, in a small incinerator in the process of processing waste wood, waste synthetic resin and waste vinyl, liquid waste containing harmful compounds Waste wood and waste synthetic resins containing harmful compounds are thermally decomposed (carbonized) to produce activated carbon (carbide) and RPF by controlling the temperature of the waste heat according to the type of waste using the waste heat discharged. The present invention relates to a multifunctional waste recycling apparatus and method using waste heat for melting plastics and RPFs, melting and evaporating and condensing liquid wastes and recycling them to liquid phases such as organic solvents.

In recent years, environmental pollution due to various wastes generated during industrialization is getting more serious, and various waste treatment technologies and pollution prevention technologies and policies have been proposed to cope with these problems as they become more real.

Currently, in Korea, waste is disposed of by landfill, incineration, and recycling. However, landfill is gradually being reduced, and incineration and recycling are recommended. Incineration, however, is used as auxiliary fuel for burning the waste while incineration with the waste at most incinerators. In this case, about 30% of the residue is generated by incomplete combustion, and these residues are landfilled again in the landfill. However, no one knows what toxic substances are contained in the incineration process, and no one can predict the seriousness of secondary pollution from these incineration residues.

Accordingly, in recent years, related laws have been loosened to recycle wastes. In particular, carbonization technology by pyrolysis of various wastes has been applied, but in this case, a large burden of facility costs and maintenance costs for operating such facilities, i.e. It is a problem.

The present invention has been proposed to solve the above-mentioned problems of the prior art, and an object of the present invention is to thermally decompose waste wood and waste synthetic resins containing hazardous chemicals using waste heat discharged from a shuttle kiln-type small combustion regenerative furnace. It provides a multifunctional device that can carbonize and use these carbides as fuel for combustion regenerative furnace, and recycle waste synthetic resin, waste vinyl and liquid waste by melting, evaporation and condensation while controlling the temperature of these waste heat. have.

In addition, another object of the present invention is to develop a small combustion regenerative furnace to use a carbide produced using waste as fuel for the combustion regenerative furnace to minimize the burden of fuel costs and to use harmful heat generated from the regenerative furnace. In addition to thermal decomposition (carbonization) of waste wood and synthetic resins containing materials, the waste heat is used to melt waste synthetic resins and waste vinyl at the same time to make plastic recycled materials and RPF, and to recycle wastes by evaporating and condensing liquid wastes. To maximize efficiency.

 Multifunctional recycling apparatus for waste using waste heat according to the present invention for achieving the above object of the present invention comprises: a second kiln type regenerative furnace for burning an auxiliary burner, regenerated activated carbon (carbide) and RPF; A temperature controller for controlling temperature by inducing waste heat supplied from a heat storage furnace; A pyrolysis (carbonization) device capable of producing activated carbon (carbide) and RPF by pyrolyzing (carbonizing) waste wood and waste synthetic resin containing harmful substances using the waste heat induced by the temperature control device; A melting apparatus for melting the waste synthetic resin and the waste vinyl by recycling the recycled raw materials and the RPF using the waste heat induced by the temperature controller; The evaporation gas generated by evaporating the liquid waste by using the waste heat induced by the temperature control device is introduced into the condenser, and the evaporated gas is recycled into a recyclable liquid such as an organic solvent condensed by cooling water. It is characterized by consisting of a condenser.

In addition, the multifunctional recycling method of waste using waste heat according to the present invention for achieving the object of the present invention is primarily to increase the thermal decomposition (carbonization) efficiency by collecting waste wood and waste synthetic resin containing harmful chemicals After the separation and separation, the pyrolytic carbon preparation step of crushing with a crusher; Inputting the waste wood and waste synthetic resin containing harmful chemicals into the pyrolysis (carbonization) device 3 using a feeder when ready to crush the waste wood;

Pyrolysis to produce regenerated activated carbon (carbide), RPF and regenerated oil by pyrolyzing (carbonizing) waste wood and waste synthetic resins containing harmful chemicals while supplying the regenerated combustion heat from the exit of the kiln-type regenerative furnace to the pyrolysis chamber. Carbonization step; The decomposition gas flowing into the condenser passes through the first and second condensers, and passes through a multi-step condensation process to produce as much recycled oil as possible; Regenerated oil condensed in the condensation stage is collected in a storage tank, and residual uncondensed gas is connected to an air pollution prevention facility that includes various means for filtering harmful gases contained in the cracked gas to prevent air pollution. Characterized in that it comprises a collection step.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is a schematic view showing a multifunctional recycling apparatus using waste heat according to the present invention, Figure 2 is a schematic configuration showing a shuttle kiln type heat storage furnace 1 according to the present invention, Figure 3 according to the present invention It is a schematic block diagram which shows the pyrolysis (carbonization) apparatus 3, and FIG. 4 is a schematic block diagram of the condenser 6 which concerns on the pyrolysis (carbonization) apparatus 3 which concerns on this invention. 5 is a schematic diagram showing the melting apparatus 4 according to the present invention, and FIG. 6 is a schematic diagram showing the evaporation and condensation apparatus 5 according to the present invention.

First, a brief description will be given of the heat storage furnace 1, which is a shuttle kiln-type small incinerator for supplying waste heat, as shown in FIG.

As a whole, the receiving space is formed therein to accommodate the heating materials, and an inlet is formed at one side, and a discharge port for exhausting combustion gas and waste heat is formed at the other side, and a primary combustion chamber that burns regenerative activated carbon (carbide) and RPF and It includes a secondary combustion chamber (heat storage chamber) that reburns incomplete combustion material generated in the primary combustion chamber, and the two primary combustion chambers are located around the secondary combustion chamber (heat storage chamber), and two such combustion chambers are installed. The combustion heat generated by alternating operation is designed so that constant heat is always introduced into the pyrolysis (carbonization) device 3 through the heat storage chamber. In addition, the fuel in the heat storage furnace is designed to use renewable activated carbon (carbide) and RPF. Each of the primary combustion chamber and the secondary combustion chamber is a dome structure, and the flame generated by burning the regenerated activated carbon (carbide) and the RPF is rotated inside the primary combustion chamber, and then moved to the secondary combustion chamber along the flame guide. One flame is also provided with an incinerator having a pivoting structure inside the secondary combustion chamber. In addition, through the inlet, the trolley is equipped with a trolley driving device to input and take out activated carbon (carbide) and RPF manufactured using carbides obtained by thermally decomposing (carbonizing) waste wood containing waste chemicals and waste synthetic resins. A plurality of auxiliary burners, which are heating means for heating the heating material, and a blower for suctioning combustion air are installed on one side of the regenerated activated carbon (carbide) and the RPF, and the auxiliary burners are pollutants caused by auxiliary fuel. LPG can be used as fuel to minimize emissions. Inside the secondary combustion chamber (heat storage chamber), refractory bricks are loaded for heat storage. In addition, the discharge port is connected to an air pollution prevention facility including various means for filtering the harmful gas contained in the combustion gas in order to prevent air pollution by the combustion gas.

In addition, as shown in FIG. 3, the pyrolysis (carbonization) device according to the present invention pyrolyzes waste wood and waste synthetic resin containing hazardous chemicals using high temperature (1,100 ° C) heat discharged from the outlet of the high temperature heat storage furnace. Carbonization) to be connected to the outlet of the high temperature heat storage furnace so as to manufacture regenerated activated carbon (carbide) and RPF, and at this time, two pyrolysis (carbonization) devices 3 are installed and connected in parallel to operate alternately. And, attach the castable to the outer portion for the thermal insulation of the pyrolysis (carbonization) device.

In addition, as shown in FIG. 4, the condenser 6 is connected to the pyrolysis (carbonization) device 3 to condense the cracked gas introduced from the pyrolysis (carbonization) device with cooling water. The condenser 6 includes a first condenser directly connected to the pyrolysis (carbonization) device, and a second condenser connected in series to the first condenser, and the first and second condensers respectively have cooling water for condensation. It is provided with a device for supplying. This cooling water cools the temperature raised by the cooling tower.

In addition, the decomposition gas remaining without condensation in the second condenser is connected to an air pollution prevention facility including various means for filtering the harmful gas included in the decomposition gas in order to prevent air pollution.

The condenser is provided with a storage tank 8 connected to collect the condensed recycled oil.

Next, among the multifunctional waste recycling systems configured as described above, the multifunctional wastes are recycled using a pyrolysis (carbonization) device, which is a recycling system for waste wood and waste synthetic resins containing hazardous chemicals by the pyrolysis method according to an embodiment of the present invention. The method will be described.

First, in order to increase the efficiency of pyrolysis (carbonization) by collecting waste wood containing waste chemicals and waste synthetic resins, they are first separated and crushed by a crusher (pyrolysis: carbonization preparation step).

When the waste wood containing waste chemicals and waste synthetic resins are ready for crushing, they are fed into a pyrolysis (carbonization) machine using a feeder.

Then, regenerated activated carbon (carbide), RPF and regenerated oil are produced by pyrolyzing (carbonizing) waste wood and waste synthetic resin containing harmful chemicals while supplying the regenerated combustion heat from the outlet of the high temperature heat storage chamber to the pyrolysis chamber. (Pyrolysis: carbonization step)

In this case, pyrolysis (carbonization) is a method for recovering useful components by decomposing the raw material by heating the raw material without contact with oxygen or in the absence of oxygen, and here, pyrolysis (carbonization) during pyrolysis (carbonization) The temperature inside the apparatus is adjusted to be 750 ° C. or less. The reason for this is to increase the thermal decomposition (carbonization) efficiency of waste wood and waste synthetic resin containing harmful chemicals by heat by applying pyrolysis method at low temperature (below 750 ℃).

When waste wood and waste synthetic resins containing harmful chemicals are pyrolyzed (carbonized), decomposed gas is generated while carbides (charcoal) remain, which are flowed to the condenser through the outlet of the carbonizer.

The cracked gas flowing to the condenser passes through the first and second condensers to generate as much recycled oil as possible through a multi-step condensation process.

The recycled oil condensed in the condensation step is collected in a storage tank, and the residual uncondensed gas is connected to an air pollution prevention facility including various means for filtering harmful gases contained in the cracked gas to prevent air pollution. (Collection stage)

5 is a block diagram schematically showing a melting apparatus 4 among the multifunctional recycling system of waste using waste heat according to the present invention, and as shown in the drawing, recycled waste synthetic resin and waste vinyl using waste heat according to the present invention. Simple melting apparatus (4) to be recycled to possible recycled raw materials and RPF, etc. comprises: crushing means for crushing the waste synthetic resin and waste vinyl at one end; A thermostat (2) for controlling the temperature of the induced waste heat; It consists of a simple melting means for melting waste synthetic resin and waste vinyl so that the waste synthetic resin and waste vinyl shredded using temperature controlled waste heat can be recycled into recyclable recycled materials and RPF.

The shredding means shreds the waste synthetic resin and waste vinyl into pieces of 15 cm or less.

In addition, the temperature control device (2) is installed in the pipe member for moving the waste heat discharged through the discharge port formed in the melting apparatus and pyrolysis (carbonization) device to adjust the temperature of the waste heat supplied.

At this time, the temperature control means may be any means as long as it has a function to control the temperature of the waste heat according to the type of waste synthetic resin and waste vinyl, such a device is well known to those skilled in the art. In this embodiment, a temperature control means using a damper is adopted.

The melting means is composed of a waste synthetic resin shredded to 15 cm or less, and a blower for circulating the decomposition gas generated when the waste vinyl is melted by melting with a screw 4 and melted by a screw.

The melting apparatus 4 is installed in a conveying pipe through which waste heat is transferred, and a circulation part is installed at the rear end of the melter.

In addition, the decomposition gas generated in the melting device (4) is to flow to the heat storage chamber to be burned again to minimize the air pollution.

Next, the operation of the melting apparatus, which is a simple recycling system for recycling the waste synthetic resin using the waste heat according to the embodiment of the present invention among the multi-functional waste recycling system configured as described above, can be recycled with renewable raw materials and RPF. do.

First, waste synthetic resin and waste vinyl are put into a crusher to crush the waste synthetic resin and waste vinyl to 15 cm or less. Then, an appropriate heating temperature is set in a temperature control device using a damper according to the types of waste synthetic resin and waste vinyl shredded. (Pulverization and preparation step)

When this is ready, the waste heat generated from the heat storage furnace is led to the melting apparatus. At this time, the induced waste heat is properly introduced into the melting apparatus by the temperature control device by the damper and the waste heat passes through the transfer pipe including the melting apparatus. Crushed waste synthetic resin and waste vinyl are melted by waste heat. (Melting stage)

At this time, the decomposition gas generated in the melter is allowed to flow back into the heat storage chamber through the tuyeres and burned again, thereby minimizing the emission of air pollutants.

6 is a block diagram schematically illustrating an evaporation and condensation apparatus 5 among the multifunctional recycling system of waste using waste heat according to the present invention. As shown in the figure, evaporation and condensation of liquid waste using waste heat according to the present invention is shown. The apparatus 5 includes a thermostat 2 for regulating the temperature of the waste heat induced largely; Condenser 6 for condensing the liquid waste to an organic solution that can be recycled by using the temperature controlled waste heat.

The temperature control device (2) adjusts the temperature of the waste heat supplied and installed in the pipe member for moving the waste heat discharged through the discharge port formed in the melting apparatus and the evaporation and condensation apparatus.

At this time, the temperature control device 2 may be any means as long as it has a function to adjust the temperature of the waste heat according to the type of liquid waste, such a device is well known to those skilled in the art. In this embodiment, a temperature control means using a damper is also adopted.

The evaporation and condensation device 5 includes an evaporation tank in which liquid waste is accommodated and stirred by a stirrer, a suction inlet through which the waste heat supplied through the temperature control device 2 is sucked and discharged, The discharge port is formed of a heat storage tank for heating the evaporation tank by the waste heat sucked in, and a storage tank connected to the evaporation tank to collect the organic solvent by condensing the evaporated gas generated in the evaporation tank with cooling water.

The evaporation tank is provided with an accommodating space for accommodating liquid waste, and closed and closed by a cap member so as to inject liquid waste, and the cap member is equipped with a motor for driving an agitator, and by the motor. The driven stirrer is installed to agitate the liquid waste injected into the receiving space.

The heat storage tank is formed with an intake port through which the waste heat supplied through the temperature control device 2 is sucked, and waste heat is discharged at a maximum distance from the intake port so that the waste heat supplied through the intake port can sufficiently heat the evaporation tank. An outlet is formed.

In addition, the discharge port is connected to the air pollution prevention facility provided in the heat storage furnace so that the waste heat discharged is filtered through the air pollution prevention facility and then discharged to the atmosphere.

In the present embodiment, two condensers 6 are connected in series to maximize condensation of the boil-off gas, but one or two or more plurality may be connected in series in consideration of the amount of the boil-off gas.

In addition, the condenser 6 is connected to the storage tank in which the holding liquid phase generated by condensation is collected.

In addition, the residual evaporation gas remaining without condensation in the condenser 6 may be filtered through an air pollution prevention facility and then discharged into the atmosphere.

Next, the operation of the evaporation / condensation device 5, which is a simple recycling system that enables the recycling of liquid waste using waste heat according to an embodiment of the present invention among organic waste recycling apparatuses configured as described above, may be performed. Explain.

First, the liquid waste is put into the evaporation tank and the stirrer is operated to stir the liquid waste. Then, an appropriate heating temperature is set in the temperature control device 2 according to the type of liquid waste. (Preparation step)

When it is ready, waste heat is led to the evaporation and condensation apparatus 5, and the waste heat induced at this time is appropriately introduced into the evaporation and condensation apparatus 5 by the temperature regulating apparatus 2.

When the waste heat is sucked into the inlet of the insulating tank, the evaporation tank is heated to evaporate the liquid waste inside the evaporation tank to generate evaporated gas. The waste heat of heating the evaporation tank is led to the air pollution prevention facility provided in the heat storage furnace through the discharge port, where it is filtered and then discharged to the atmosphere.

The evaporated gas generated in the evaporation tank is introduced into the condenser, and the introduced evaporated gas is condensed by the cooling water to be in a maintenance liquid state and collected by the storage tank (8).

Multifunctional waste recycling apparatus using waste heat according to the present invention

First, air pollution and incineration from the existing methods of incineration of wastes by treating waste wood and waste synthetic resins containing hazardous chemicals by pyrolysis (carbonization) to produce renewable activated carbon (carbide), RPF and recycled oil. Secondary pollution from residues can be prevented and the initial investment costs can be reduced by miniaturizing the treatment facilities rather than incineration plants.

Second, because the regenerated furnace fuel used to obtain waste heat required for pyrolysis (carbonization), melting, and evaporation is used in its process, it is not necessary to use separate fuel for waste treatment. It has the effect of saving energy.

Third, waste heat is used, and the waste heat used is sent to the air pollution prevention facility of the existing heat storage furnace, thereby utilizing the existing facilities, thereby reducing the installation cost of installing waste treatment facilities.

Claims (2)

In the waste recycling apparatus, A kiln-type regenerative furnace 1 for burning the auxiliary burner, regenerated activated carbon (carbide) and RPF; A temperature control device (2) for controlling temperature by inducing waste heat supplied from the heat storage furnace (1); A pyrolysis (carbonization) device capable of producing activated carbon (carbide) and RPF by pyrolyzing (carbonizing) waste wood and waste synthetic resin containing harmful substances by using the waste heat induced by the temperature control device 2 ( 3) and; A melting apparatus 4 for melting waste synthetic resin and waste vinyl to recycle the recycled raw materials, RPF, etc. using the waste heat induced by the temperature controller 2; The evaporation gas generated by evaporating the liquid waste using the induced waste heat by the temperature control device 2 is introduced into the condenser, and the introduced evaporated gas is converted into a recyclable liquid such as an organic solvent condensed by cooling water. A multifunctional recycling apparatus using waste heat, characterized by comprising an evaporation and condensation apparatus (5) for recycling. In the method of recycling waste, A pyrolysis / carbonization preparation step of firstly screening and crushing the waste wood and waste synthetic resin containing harmful chemicals to increase the thermal decomposition (carbonization) efficiency, and then crushing with a crusher; Inputting the waste wood and waste synthetic resin containing the harmful chemicals into a pyrolysis (carbonization) device 3 using a feeder when ready to crush the waste wood; Regenerated activated carbon (carbide), RPF, and regenerated oil are produced by thermally decomposing (carbonizing) waste wood and waste synthetic resins containing harmful chemicals while supplying the regenerated combustion heat from the exit of the shuttle kiln regenerator (1) to the pyrolysis chamber. Pyrolysis and carbonization step; The condensation gas flowing to the condenser 6 passes through the first and second condensers and passes through a multi-step condensation process to generate as much recycled oil as possible. The recycled oil condensed in the condensation step is collected into a storage tank, and the residual condensed gas that is not condensed is connected to an air pollution prevention facility including various means for filtering harmful gases contained in the cracked gas to prevent air pollution. Multifunctional recycling method using waste heat, characterized in that comprising a collecting step.

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