TW201924792A - Impact-type continuous softening extrusion method of waste automobile shredder residue extrudes and melts the ASR through a mold unit - Google Patents

Abstract

The impact-type continuous softening extrusion method of waste automobile shredder residue (ASR) comprises the following steps: inputting an ASR into the body of the impact-type continuous softening extrusion device; reciprocally impacting and rubbing the ASR through the impact unit arranged on the body to generate the first heat to the ASR; utilizing the reciprocating motion of the impact unit to generate another ASR rubbed in a gap between the impact unit and the inner wall of the body, so as to generate second heat to the ASR; impacting and pushing the ASR into the mold unit by the reciprocating motion of the impact unit, the mold unit having an instantaneously reduced cross-sectional area relative to the body to generate heat to the ASR, and at least one of the first heat, the second heat, and the third heat reaching a melting temperature to melt the ASR; and extruding the molten ASR through the mold unit.

Description

Impact type continuous softening extrusion method for waste motor vehicle crushing residue

The invention relates to an impact continuous softening extrusion method for a waste motor vehicle shredder residue (ASR). In particular, an impact type continuous softening extrusion method used in the production of waste-derived fuels by using waste motor vehicles to pulverize residues.

In recent years, with the economic development, the use of motor vehicles has gradually increased, and the large amount of waste generated by scrapped motor vehicles has a huge burden on the environment and ecology. After dismantling and pulverizing these valuable motor vehicles, nearly 30% still contain, for example, foam, plastic (PE, PVC, PP), rubber (rubber, neoprene, acrylonitrile), synthetic resin (PU). , PA, epoxy resin, styrene compound), hard-to-recycle residue of fiber (textile, waste paper, wood), metal, glass, dust, paint and other impurities, commonly known as "waste motor vehicle crushing residue ( ASR)".

The main method of dealing with ASR today is landfill. However, minimizing waste and reducing buried waste has become a current environmental trend. It is known that the waste residue of waste motor vehicles can be recovered, and the combustibles can be screened to form a Densified Refuse Derived Fuel (RDF-5) to convert waste into renewable energy.

Waste-derived fuel (RDF) technology is a technology in which waste is fueled by different treatment processes. The solid waste-derived fuel (RDF-5) is a process of crushing, sorting, drying, mixing additives and molding, and making solid ingots (such as spheres, columns, etc.) with combustible waste components. )fuel. The main characteristics of solid waste-derived fuel (RDF-5) are uniform size and calorific value (about 2/3 of coal), which can be stored for 6~12 months at normal temperature without corruption, which not only helps transportation and Preservation is more beneficial to the control of the combustion conditions in the boiler, thereby improving the power generation efficiency, reducing exhaust emissions and reducing Dioxin pollution. RDF-5 can be directly applied to mechanical bed boilers, fluidized bed boilers and power generation boilers, etc., instead of using coal as the main fuel or co-firing with coal, it can also be co-firing with other raw materials. To regulate the combustion conditions in the boiler.

When the waste component is made into a solid ingot fuel RDF-5, the steps include: screening a raw material having a predetermined size/component; feeding the screened raw material to the heating unit through a conveyor to gradually heat the molten raw material, heating time The raw material is brought into a molten state for about 1 to 2 hours; and the rotating screw agitates the raw material and extrudes the raw material into a molding unit. That is, prior art methods or apparatus for making solid waste derived fuel require a heating unit/step that is independent of an extrusion unit/step.

Extrusion devices for various softening materials in other industries are also required to have a heating unit/step.

The problems with the prior art are: (1) before the raw material is extruded, a heating unit/step is required to make the raw material softened and molten; (2) the heating unit/step requires preheating and heating time (heating to the raw material) The melting temperature is about at least 1 to 2 hours); (3) the raw materials must be fed into the process in batches. After the first batch of raw materials is heated to a molten state, the second batch of raw materials can be heated into the process after entering the next step. That is to say, conventional extrusion methods and apparatus cannot be continuously fed, and it is not possible to carry out economical mass production continuously; and (4) extrusion is carried out because of heating of the extrusion apparatus and extrusion granulation in two separate steps. When it comes out, the raw material has cooled down, and it is further likely to solidify, which easily blocks the extrusion opening.

SUMMARY OF THE INVENTION The object of the present invention is to solve the problems of the prior art extrusion apparatus and to provide an impact type continuous softening extrusion method for waste motor vehicle pulverization residue. The impact type continuous softening extrusion method of the waste motor vehicle crushing residue of the invention is applicable to an impact type continuous softening extrusion device, and the impact type continuous softening extrusion method comprises the following steps: inputting waste motor vehicle crushing residue to impact type a body of a continuous softening extrusion device as a fuel substrate; through an impact unit disposed on the body, reciprocating impact and generating a friction against the fuel substrate to generate a first heat to the fuel substrate; utilizing The reciprocating motion of the impact unit produces another fuel substrate that is rubbed in a gap of the impact softening extrusion device to generate a second heat to the fuel substrate, wherein the gap is between the impact unit and an inner wall of the body The fuel substrate is impacted and pushed by the reciprocating movement of the impact unit into a mold unit, and the mold unit has an instantaneously reduced cross-sectional area relative to the body to generate a third heat on the fuel substrate, through the first At least one of heat, second heat, and third heat reaches a melting temperature to melt the fuel substrate; and to make the fuel base The molten extruded through the die base material of the fuel cell.

In an embodiment of the invention, the input of the waste motor vehicle crushing residue is performed simultaneously with the reciprocating motion of the impact unit.

In an embodiment of the invention, a chlorine removal agent is added.

In an embodiment of the invention, the instantaneously reduced cross-sectional area is reduced by more than 50%.

In an embodiment of the invention, the impact unit reciprocates at a pressure of 200 kg/cm ² or more and 1650 kg/cm ² or less.

In an embodiment of the invention, the impact unit performs two or more reciprocating motions in one second.

In an embodiment of the invention, the reciprocating motion of the impact unit is achieved by a flywheel.

In an embodiment of the invention, the temperature of the fuel substrate is brought to 150 C or more.

In an embodiment of the invention, the direction in which the waste motor vehicle is shredded into the residue is perpendicular to the direction of reciprocation of the impact unit.

In an embodiment of the invention, the amount of molten fuel substrate extruded from the mold unit is determined by varying the number of openings in the mold unit.

The impact type continuous softening extrusion method of the waste motor vehicle crushing residue provided by the invention has the following advantages compared with the existing extrusion method: the impact unit is used to impact the fuel base material to generate heat, and the fuel base material reaches a high temperature. Continuous melt extrusion without the need for an additional heating unit to provide heat source to heat the fuel substrate, and does not require time for preheating and heating; the structure of the present invention can generate multi-stage heat to the fuel substrate, which can be continuously The feed is extruded without batch production; and a large amount of heat energy is generated in the mold unit by means of a mold unit having a reduced impact sectional area, and the fuel substrate is not easily solidified and clogged at the time of output.

In addition, the impact type continuous softening extrusion method of the waste motor vehicle pulverization residue provided by the present invention can efficiently extrude the fuel substrate and save the energy required for extrusion.

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

The impact type continuous softening extrusion method of the present invention is an impact type continuous softening extrusion method using a waste motor vehicle pulverized residue ASR. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the steps of an impact type continuous softening extrusion method according to an embodiment of the present invention. The impact type continuous softening extrusion method of the waste motor vehicle pulverized residue of the present invention is suitable for an impact type continuous softening extrusion apparatus, for example, the impact type continuous softening extrusion apparatus of Fig. 2. The structure of the device mentioned in the following method can be referred to FIG.

As shown in FIG. 1, the impact type continuous softening extrusion method includes a step of feeding input S10, impact friction melting S20, and extruding S30.

In the present embodiment, the waste motor vehicle waste may be pretreated by cutting, screening, or the like, not shown, to become a waste motor vehicle crushing residue ASR having a predetermined size or composition.

Feed Input S10: The waste motor vehicle pulverization residue ASR is input to the body 10 of the impact type continuous softening extrusion device 100. The body 10 of the impact type continuous softening extrusion device 100 may be provided with a feed input port 144 for inputting the waste motor vehicle crushing residue ASR into the body 10 of the impact type continuous softening extrusion device 100 via the feed input port 144. Used as a fuel substrate (hereinafter referred to as fuel substrate ASR).

Impact friction melting S20: The fuel substrate ASR is impacted and rubbed in a reciprocating motion in the body 10 to generate heat to the fuel substrate ASR, which heats the fuel substrate ASR to a softened fuel substrate ASR'. An impact unit 20 is disposed in the body 10 of the impact type continuous softening extrusion device 100, and the impact unit 20 reciprocates within the body 10.

In the present embodiment, the impact friction melting S20 may include three sub-steps such as steps S22 to S26. First, in step S22, by the reciprocating motion of the impact unit 20, the fuel base material ASR in the input body 10 is impacted and rubbed, so that the first heat can be generated on the fuel base material ASR, and the fuel base material ASR can be melted to form a softened fuel base. ASR'.

Next, in step S24, the fuel substrate ASR entering and exiting the gap G between the inner wall of the body 10 and the impact unit 20 is rubbed by the reciprocating motion of the impact unit 20, and the second heat can be generated on the fuel substrate ASR. The fuel base material ASR can be melted to form a fuel base material ASR' in a softened state.

Then, step S26 is performed: the fuel substrate ASR is impacted and pushed into a section of the die unit 30 that is instantaneously reduced relative to the body 10, and a third heat can be generated to the fuel substrate ASR. The inner diameter of the die unit 30 is greatly reduced with respect to the inner diameter of the body 10. That is, when the reciprocating motion of the impact unit 20 pushes the fuel base material ASR into the mold unit 30, the fuel base material ASR is impacted from the body 10 having a large cross-sectional area and pushed and pushed into the mold having a small cross-sectional area. In the unit 30, such a reduction in the instantaneous cross-sectional area can generate a third heat to the fuel base material ASR, and the fuel base material ASR can be melted to form a softened fuel base material ASR'.

In this way, the melting temperature can be reached by at least one of the first heat, the second heat, and the third heat, and the fuel base material ASR can be melted.

In addition, since the impact unit 20 reciprocates within the body 10, steps S22, S24, and S26 can be simultaneously performed.

After the impact friction melting step S20, the extrusion S30: the fuel base material ASR' which is melted and softened is extruded from the die unit 30. The mold unit 30 is disposed on a side of the body 10 with respect to the impact unit 20. The reciprocating motion of the impact unit 20 simultaneously pushes the melted softened fuel base material ASR' to the mold unit 30 at the same time as the impact friction input fuel base material ASR, and melts the softened fuel base material ASR' via the mold unit. 30 was extruded to the outside.

The fuel base material ASR' extruded to the outside by the impact type continuous softening extrusion method of the present embodiment can be further solidified, and the softened fuel base material ASR' can be made into a derivative fuel of a predetermined size or shape.

The impact type continuous softening extrusion method of the present invention utilizes a rapid reciprocating motion to generate a high pressure in the body 10, and impacts and rubs the fuel substrate ASR to cause the fuel substrate ASR to generate a high temperature to reach a melting temperature to become a molten fuel substrate. ASR'. The impact type continuous softening extrusion method can be carried out under a pressure of 200 kg/cm ² or more and 1650 kg/cm ² or less.

In the present embodiment, the impact type continuous softening extrusion method uses a pressure condition of 350 kg/cm ² , but is not limited thereto.

The fuel substrate ASR can be impacted at a predetermined frequency. In the present embodiment, the impact unit 20 performs three reciprocating motions in one second. However, the impact unit 20 can also perform more than two reciprocating motions in one second to impact the fuel substrate ASR, which is not limited thereto.

The melting temperature of the waste motor vehicle crushing residue ASR is about 150~260C. In the present embodiment, the impact unit 20 is impacted three times per second at an impact pressure of 350 kg/cm ² to achieve a fuel base material ASR of at least 150 C or more. That is, the impact type continuous softening extrusion apparatus 100 of the present invention can bring the temperature of the fuel base material ASR to a molten state by the rapid reciprocation of the impact unit 20.

In addition, in the embodiment of Fig. 1, the feed input S10 of the waste motor vehicle pulverization residue ASR can be performed simultaneously with the impact friction melting S20. It is possible to input the waste motor vehicle pulverization residue ASR as a fuel substrate while feeding. Because the impact type continuous softening extrusion method according to the present embodiment can continuously generate thermal energy to the fuel substrate ASR at each stroke stage of the reciprocating motion of the impact unit 20, regardless of whether the fuel substrate falls on the impact type continuous softening extrusion device Within the body 10, or falling on the impact unit 20 as the impact unit 20 passes through the feed input port 144, thermal energy can be generated by the reciprocating motion of the impact unit 20.

The impact type continuous softening extrusion method of the present embodiment can further provide the fuel base material ASR which provides thermal energy to the mold unit 30, and can ensure that the fuel base material ASR of the mold unit 30 is melted into the softened fuel base material ASR', The clogging mold unit 30 is cured.

Therefore, the present invention generates a large amount of heat energy while extruding the fuel substrate ASR (ASR') without requiring an additional heating step.

The impact type continuous softening extrusion method of the present embodiment may also include a chlorine removal step: for example, adding a chlorine removal agent at the impact friction melting S20 or the feed input S10 to reduce the generation of dioxin in the high temperature melt combustion process.

It is worth mentioning that the impact type continuous softening extrusion method of the present embodiment can directly generate the high temperature of the fuel substrate ASR by the high temperature molten fuel substrate ASR generated by the impact friction, without adding the help fuel in the process. Additive for substrate ASR heating.

The impact type continuous softening extrusion method of the present invention can be summarized as an impact type continuous softening extrusion apparatus, as shown in FIG. The impact type continuous softening extrusion device of the present invention is suitable for waste motor vehicle crushing residue (ASR), and can continuously soften and extrude the waste motor vehicle crushing residue (ASR) to further become a waste-derived fuel.

2 is a schematic view showing the structure of an impact type continuous softening extrusion device 100 according to an embodiment of the present invention. As shown in FIG. 2, the impact type continuous softening extrusion apparatus 100 includes a body 10, an impact unit 20, a mold unit 30, and a gap G. The impact type continuous softening extrusion apparatus 100 can be connected to a conveyor 200 and a flywheel 300 as shown in FIG.

The body 10 is for accommodating the input waste motor vehicle pulverization residue ASR as a fuel base material (hereinafter referred to as a fuel base material ASR). The body 10 is provided with an impact unit 20 that reciprocates within the body 10 to impact the fuel substrate ASR housed within the body 10. The feed input port 144 of the conveyor 200 can be opened in a direction perpendicular to the reciprocating motion of the body 10 relative to the impact unit 20 for inputting the waste motor vehicle crushing residue ASR into the body 10. Although the waste motor vehicle pulverization residue ASR can be input through the conveyor 200 as shown in FIG. 2, the configuration of the conveyor 200 is not limited to that shown in FIG. 2. In this embodiment, the waste motor vehicle crushing residue ASR may be subjected to pretreatment such as cutting, screening, and the like.

The gap G is located between the impact unit 20 and the inner wall of the body 10, and the gap G can temporarily accommodate the fuel substrate ASR, that is, allow the fuel substrate ASR to enter and exit the gap G. The mold unit 30 is disposed on one side of the body 10 with respect to the impact unit 20, and the fuel base material ASR is extruded through the mold unit 30 to the outside of the impact type continuous softening extrusion device 100.

2 is a state in which the impact unit 20 is located at the initial position of the body 10 (bottom dead center, as shown by a broken line B in FIG. 2). The impact unit 20 can be connected to the flywheel 300 of FIG. 2, for example, and the flywheel 300 drives the impact unit 20 to operate. The moment of inertia of the flywheel increases the instantaneous impact force when the impact unit 20 reciprocates. However, the manner of driving the impact unit 20 is not limited to the figure. The flywheel 300 of 2 is a fuel base material ASR' which can cause the impact unit 20 to generate sufficient impact pressure and frequency to melt the fuel base material ASR into a softened state.

In addition, as shown in FIG. 2, the mold unit 30 may have an opening 30a that communicates with the body 10. The inner diameter of the opening 30a is substantially smaller than the inner diameter of the body 10, that is, the mold unit 30 has an instantaneously reduced cross-sectional area with respect to the sectional area of the body 10.

The cross-sectional area of the opening 30a may be 50% or less of the sectional area of the body 10. In one embodiment, the cross-sectional area of the opening 30a is 25% to 35% of the cross-sectional area of the body 10.

3(a) to (d) are schematic views showing the operation of the impact unit 20 of the impact type continuous softening extrusion apparatus according to the embodiment of Fig. 2. As shown in FIG. 3(a), the impact unit 20 quickly impacts the fuel base material ASR accommodated in the body 10 by its reciprocating motion, and the fuel base material ASR is rubbed by the impact unit 20 during impact and is struck by the fuel base material ASR. Rubbing against each other produces a lot of heat. That is, the first heat is supplied to the fuel base material ASR, and the fuel base material ASR in the vicinity of the impact unit 20 is heated to a high temperature, and the fuel base material ASR can be melted to form a softened fuel base material ASR'.

When the impact unit 20 reciprocates, the fuel base material ASR in the gap G rubs against the impact unit 20 and the inner wall of the body 10, generating a large amount of thermal energy. That is, by rubbing the fuel substrate ASR with the inner wall of the body 10, the second heat is supplied to the fuel substrate ASR, and the fuel substrate ASR between the impact unit 20 and the inner wall of the body 10 generates a high temperature, and the fuel base can be made. The material ASR is melted to form a softened fuel substrate ASR'. Fig. 3(b) shows a state in which the fuel base material in the gap G is rubbed against the impact unit 20 and the inner wall of the body 10, and at the same time, the reciprocating motion of the impact unit 20 pushes the molten fuel base material ASR' to the mold unit 30.

The impact type continuous softening extrusion device 100 of the present embodiment can continuously feed, and does not need to wait for the device to be heated, cooled, and output the fuel substrate before being fed twice. That is, the waste motor vehicle pulverization residue ASR can be continuously input from the feed input port 144 while the impact unit 20 is reciprocating. 3(c) shows a state in which the waste motor vehicle crushing residue ASR input from the feed input port 144 falls on the impact unit 20 while the impact unit 20 is reciprocating.

3(d) shows the gap G between the waste motor vehicle crushing residue ASR falling into the impact unit 20 and the inner wall of the body 10 when the impact unit 20 is returned to the initial position. The fuel base material ASR in the gap G rubs against the impact unit 20 and the inner wall of the body 10 to generate the aforementioned second heat to the fuel base material ASR.

The configuration of the impact unit 20 is not limited as long as it can reciprocate within the body 10, which may be, for example, a piston or a shaft, and the structure of the front end of the piston or the shaft may be plate-like or cylindrical.

The impact unit 20 travels farthest to the mold unit 30 (top dead center, as indicated by a broken line T in Fig. 2), and the reciprocating motion of the impact unit 20 causes the fuel substrate ASR to be impacted and pushed to the mold unit 30 whose cross-sectional area is instantaneously reduced. The fuel base material ASR having a cross-sectional area difference is extruded from the main body by impact to generate a third heat to the fuel base material ASR, and the fuel base material ASR can be melted to form a softened fuel base material ASR'.

At the same time, the reciprocating motion of the impact unit 20 is pushed out to the outside of the mold unit 30 by the fuel substrate ASR that is pushed to the mold unit 30.

The configuration of the die unit 30 is not limited, and it may be single hole or porous. 4(a) shows an embodiment in which the mold unit 30 is a single hole, and FIG. 4(b) shows an example in which the mold unit 30 is porous. That is, the mold unit 30 may have one or more openings 30a, and the shape of the opening may be, for example, a circle, a square, or the like. The plurality of fuel substrates ASR/ASR' can be simultaneously extruded using the porous mold unit 30.

Further, the die unit 30 may be connected to a heat insulating unit (not shown) to provide a melting temperature of the fuel substrate ASR to further ensure that the fuel substrate ASR maintains its molten softened state until it is extruded outside the die unit 30.

Accordingly, the impact continuous softening extrusion process of the present invention can simultaneously feed, soften and extrude the fuel substrate. The invention utilizes impact friction to reach high temperature and high pressure to make the fuel substrate into a molten softened state, and does not require an additional heating step, and can soften and extrude the fuel substrate in a single device, thereby saving production time and energy, and in manufacturing derivative fuels. Achieve real environmental protection and resource reuse.

The present invention has been described in terms of the above embodiments and examples, but the present invention is not limited to the above description, and those skilled in the art can understand that various modifications, improvements, and combinations are possible without departing from the gist of the present invention. The possibilities are all within the scope of the invention.

10‧‧‧ Ontology

20‧‧‧ impact unit

30‧‧‧Mold unit

30a‧‧‧ openings

100‧‧‧Blasting continuous softening extrusion device

144‧‧‧feed input

200‧‧‧Dropper

300‧‧‧ flywheel

G‧‧‧ gap

B‧‧‧Bottom dead point

T‧‧‧top dead point

S10, S20, S22, S24, S26, S30‧‧

1 is a block diagram of an impact type continuous softening extrusion method according to an embodiment of the present invention; and FIG. 2 is a schematic structural view of an impact type continuous softening extrusion apparatus according to an embodiment of the present invention; FIG. 3(a)~ (d) is a schematic view of the operation of the impact unit of the impact type continuous softening extrusion apparatus of FIG. 2; and FIG. 4(a) is a front view of the single-hole mold unit of the impact type continuous softening extrusion apparatus of FIG. 2, FIG. b) is a front view of a porous mold unit of another embodiment.

Claims (10)

An impact type continuous softening extrusion method for waste motor vehicle crushing residue, which is suitable for an impact type continuous softening extrusion device, the impact type continuous softening extrusion method comprising the following steps: inputting waste motor vehicle crushing residue to the impact type a body of a continuous softening extrusion device as a fuel substrate; a shock unit disposed on the body, reciprocatingly impacting and generating a friction against the fuel substrate to generate a first heat to the fuel base Using the reciprocating motion of the impact unit, another fuel substrate that is rubbed in a gap of the impact softening extrusion device is generated to generate a second heat to the fuel substrate, wherein the gap is located at the impact Between the unit and an inner wall of the body; the fuel substrate is impacted and pushed by the reciprocating movement of the impact unit into a mold unit, the mold unit having an instantaneously reduced cross-sectional area relative to the body, Generating a third heat to the fuel substrate, and transmitting at least one of the first heat, the second heat, and the third heat Melting temperature to melt the base fuel; and causing the fuel to the fuel base substrate by melt extruding the mold unit. According to the impact type continuous softening extrusion method of the first aspect of the patent application, the step of inputting the waste motor vehicle to pulverize the residue is performed simultaneously with the reciprocating movement of the impact unit. A chlorine removal agent is added according to the impact type continuous softening extrusion method described in claim 1 of the patent application. According to the impact type continuous softening extrusion method described in claim 1, the instantaneously reduced cross-sectional area is reduced by 50% or more. According to the impact type continuous softening extrusion method of the first aspect of the patent application, the impact unit reciprocates at a pressure of 200 kg/cm ² or more and 1650 kg/cm ² or less. According to the impact type continuous softening extrusion method of the first aspect of the patent application, the impact unit performs two or more reciprocating movements in one second. According to the impact type continuous softening extrusion method described in claim 1, the reciprocating motion of the impact unit is realized by a flywheel. The impact type continuous softening extrusion method according to claim 1, wherein the temperature of the fuel substrate is 150 C or more. According to the impact type continuous softening extrusion method according to the first aspect of the patent application, the direction in which the waste motor vehicle pulverizes the residue is input is perpendicular to the direction of the reciprocating motion of the impact unit. According to the impact type continuous softening extrusion method of the first aspect of the patent application, the amount of the molten fuel substrate extruded from the mold unit is determined by changing the number of openings of the mold unit.