KR20090105580A - The Refined Oil Manufacturing Device for Coking Prevention - Google Patents

Abstract

PURPOSE: A coking prevention emulsifying device is provided, which can improve effectiveness of the productivity and process and profitability by consecutively operating the emulsifying device. CONSTITUTION: A coking prevention emulsifying device includes a material supply hopper(110), knife valves(123,125), a pyrolysis tube(131), an electric heater(145), a vertical gas pipe(151), and a horizontal gas pipe(153). The material supply hopper supplies waste plastic film or waste plastic to the pyrolysis tube. The knife valve is installed in the outlet pipe of the material supply hopper and injects the raw material of the predetermined amount into the pyrolysis tube. The pyrolysis tube heats and decomposes the raw material supplied from the material supply hopper and is equipped with a variable-pitch screw. The electric heater supplies heat while surrounding the outer circumference of the pyrolysis tube. The vertical gas pipe perpendicularly moves the gas. The horizontal gas pipe includes a transfer pipe(160) which transfers the gas to a condenser.

Description

The Refined Oil Manufacturing Device for Coking Prevention}

The present invention relates to an emulsifying apparatus for producing regenerated oil using vinyl or plastic waste, and more particularly, to an emulsifying apparatus for producing regenerated oil by pyrolyzing vinyl or plastic waste, in which coking phenomenon of carbon component deposition occurs. The present invention relates to an anti-caulking emulsification apparatus that can be continuously operated by preventing the pyrolysis reaction tube or the gas tube from being blocked.

In today's world, resources are limited, but energy resources are gradually being depleted due to population growth and accelerated consumption. Also, a large amount of waste generated through various production and consumption activities causes serious environmental pollution. I'm doing it.

In the current dependence of energy such as oil and gas in foreign countries, the efficient use of energy requires not only a national level but also a deep life in terms of profitability, saving, and frugality according to cost and household.

In particular, from a firm's point of view, it is not necessary to reconsider the profitability of the company due to cost reduction or to improve international competitiveness due to the appreciation of the won.

On the other hand, waste plastics used in rural areas and waste plastics used in various goods and packaging materials have to be disposed of. If these wastes are buried in the ground, they will not decay even after several decades. When collected and burned, dioxin and smoke are the main contributors to air pollution.

In particular, vinyl products made of polyethylene (PE) or polypropylene (PP), which are commonly used today, are mostly disposed of as waste because of their low recyclability. It takes a lot of time until the measures have been required. In addition, the development of new energy to replace the limited resources of petroleum energy is required.

Therefore, the government has selected a certain company to process such plastic waste and induces plastic waste to manufacture plastic products. However, since the soil or stone in plastic waste is washed with water, Not only complete removal of the soil or stone, but also the poor quality of the finished product, as well as the release of large amounts of fumes such as fumes into the air through the chimney when dissolving the plastic waste. In addition, since the raw material used for dissolving vinyl waste is using diesel oil or the like, there is a problem in that it is not possible to use energy efficiently and waste foreign currency.

In order to solve the problems of environmental pollution and energy depletion as described above, a method of recycling waste fuel by liquefying and cracking waste vinyl has been proposed.

Normally, vinyl products are manufactured from polymers having a large molecular weight in petroleum, and gasoline, diesel, and liquefied gas used as resources are manufactured from polymers having relatively small molecular weight in petroleum. The liquefied gas and the like are all composed of carbon and hydrogen.

Therefore, since the composition of waste vinyl, gasoline, diesel oil, and liquefied gas is the same, the conversion of the plasticity of the molecular weight can convert waste vinyl into an energy source such as gasoline, diesel oil, or liquefied gas. As waste vinyl, it can be regarded as solid petroleum having a very high molecular weight, and when it is liquefied and cracked, it can be converted into petroleum in liquid and gas.

Such a cracking method can be divided into a pyrolysis method using only heat and a catalytic cracking step of injecting a catalyst, and recently, a method in which heat and catalytic cracking are also investigated.

The present invention relates to a pyrolysis method, and the pyrolysis method is a simple process and easy to operate, and a lot of research has been conducted in the past. Such a method can obtain regeneration oil, which is a decomposition product such as liquid fuel, gaseous fuel, or synthesis gas. Due to the coking phenomenon due to carbon deposition in the pyrolysis reactor and the gas collection pipe, there was a fatal problem in that the economic efficiency such as the continuous operation was limited due to the interruption of the process.

In order to solve this problem, the present invention is an emulsifying apparatus for producing regenerated oil by pyrolyzing vinyl or plastic waste, wherein coking phenomenon occurs due to carbon component deposition and prevents the pyrolysis reaction tube or gas pipe from being clogged. The purpose is to provide an anti-caulking emulsification apparatus that can be operated to increase the productivity and process efficiency of the regeneration oil.

In order to achieve the above object, the present invention provides a raw material supply hopper for supplying waste vinyl or waste plastic as a raw material to a pyrolysis reaction tube; A knife valve installed at an outlet tube of the raw material supply hopper to inject a predetermined amount of raw material into the pyrolysis reaction tube; The pitch of the screw blade is widened to thermally decompose the raw material supplied from the raw material supply hopper, and to transfer the raw material and ash to the ash outlet while removing the caulking material caused by the deposition of carbon components of the liquefied or vaporized raw material therein. A pyrolysis reaction tube including a variable pitch screw having an enlarged portion and a pitch reduced portion narrowing the pitch; An electric heater that applies heat while surrounding an outer circumferential surface of the pyrolysis reaction tube; A vertical gas pipe connected to the pyrolysis reaction pipe to vertically convex the vaporized gas; And a horizontal gas pipe having a transfer pipe for transferring the gas introduced through the vertical gas pipe to the condenser.

According to the present invention, in an emulsifying apparatus for producing regenerated oil by pyrolysing vinyl or plastic waste, coking phenomenon occurs due to deposition of carbon components, thereby preventing the pyrolysis reaction tube or gas pipe from being clogged so that the emulsifying apparatus can be continuously operated. As a result, the productivity of the reclaimed oil and the efficiency and economic efficiency of the process can be improved.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same reference numerals are used as much as possible even if displayed on different drawings. In addition, in describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a block diagram schematically showing an anti-caulking emulsifying apparatus according to an embodiment of the present invention, Figure 2a is a side view showing a pyrolysis reaction tube of the anti-caulking emulsifying apparatus according to an embodiment of the present invention, Figure 2b is Figure 2a This is an enlarged view of the A portion of the.

1 and 2a and 2b, the anti-caulking emulsification apparatus according to an embodiment of the present invention includes a raw material supply hopper 110 for supplying waste vinyl or waste plastic to the pyrolysis reaction tube 131 as a raw material; A knife valve 120 installed at an outlet pipe 115 of the raw material supply hopper 110 to inject a predetermined amount of raw material into the pyrolysis reaction tube 131; The screw blade to heat and decompose the raw material supplied from the raw material supply hopper 110 to transfer the raw material and ash to the ash outlet 250 while removing the caulking material by the deposition of carbon components of the liquefied or vaporized raw material therein. A pyrolysis reaction tube 131 provided with a variable pitch screw 130 on which a pitch enlargement 135 for widening the pitch of 136 and a pitch reduction section 137 for narrowing the pitch are formed; An electric heater 145 for applying heat while surrounding the outer circumferential surface of the pyrolysis reaction tube 131; A vertical gas pipe 151 connected to the pyrolysis reaction pipe 131 to vertically convex the vaporized gas; And a horizontal gas pipe 153 having a transfer pipe 160 for transferring the gas introduced through the vertical gas pipe 151 to the condenser.

The raw material supply hopper 110 is a device for temporarily storing and supplying waste vinyl or plastic waste (hereinafter, referred to as "raw material") conveyed by the raw material input belt conveyor 105, and feeding a certain amount of raw material as necessary. As the valve 120 opens and closes, the valve 120 is supplied to the pyrolysis reaction tube 131.

The raw material supply hopper 110 is provided with a knife valve 120 in the outlet pipe 115 to prevent the inflow of air as much as possible when supplying the raw material to the pyrolysis reaction tube 131 and to supply only the raw material.

The knife valve 120 opens and closes the outlet pipe 115 of the raw material supply hopper 110 so as to input the raw material supplied to the pyrolysis reaction tube 131 by a predetermined amount, the upper knife valve 123 and the lower knife valve. 125 is comprised by a pair.

Therefore, when the upper knife valve 123 is opened while the lower knife valve 125 is closed, and a certain amount of raw material is filled in the upper outlet pipe 115 of the lower knife valve 125, the upper knife valve 123 is closed. And the lower knife valve 125 is opened so that only the raw material from which air is excluded as much as possible is supplied to the pyrolysis reaction tube 131.

The knife valve 120 is hydraulically or electrically driven by a control panel, and a pair of upper knife valves 123 and lower knife valves 125 are provided in one pyrolysis reaction tube 131, and in FIG. 1, two pyrolysis reactions are provided. Although the tube is shown and described as having a pair of knife valves, respectively, but not necessarily limited thereto, in some cases, two or more pyrolysis reaction tubes may be provided in accordance with the production situation of the emulsifier manufacturing facility, accordingly the knife Valves may also be provided in pairs in each pyrolysis reaction tube.

The pyrolysis reaction tube 131 is a device that generates regenerated oil by cracking a carbon chain molecular structure while heating and melting waste vinyl or waste plastic, which is a raw material supplied in an anoxic or low oxygen state, to melt.

In general, most of the waste vinyl or waste plastic has a physical change that is deformed and melted at a temperature of 300 ° C. or lower as a thermoplastic material, and when it is 350 ° C. or higher, a chemical change that causes the carbon chain structure to be cracked occurs.

Therefore, the raw material supplied to the pyrolysis reaction tube 131 undergoes a reaction in which the raw material is melted and vaporized by heat, and the vaporized gas is collected through the vertical gas pipe 151 and the horizontal gas pipe 153 and condensed in the condenser to be reduced to the required regeneration oil. The remaining carbonized ash is discharged to the ash outlet 250 provided at the end of the pyrolysis reaction tube 131.

The pyrolysis reaction tube 131, together with the vertical gas pipe 151 and the horizontal gas pipe 153, may be referred to as a core device of the emulsifier, and the raw material that is melted and vaporized transfers the inner circumferential surface or the raw material of the pyrolysis reaction tube 131. Caulking phenomenon occurs to block the pyrolysis reaction tube 131 by being stuck to the screw, or the heat is not provided to the center of the pyrolysis reaction tube 131, so the pyrolysis process of the raw material is not done properly, the entire process is a critical problem In order to prevent the present invention is provided with a variable pitch screw 130 driven by the motor 147.

That is, as shown in FIG. 2A, the raw material input part 133 having a constant screw pitch, the pitch expanding part 135 in which the screw pitch gradually widens from the raw material input part 133, and the pitch expanding part 135 are gradually obtained. The pitch reduction part 137 in which a pitch becomes narrow, and the ash discharge part 139 in which a screw pitch is constant are formed integrally.

In addition, the pitch enlarged portion 135 and the pitch reduced portion 137 have a through hole 138 cut between the blade end portions from the outer circumferential surface of the screw shaft 132 on the screw blade 136 as shown in FIG. 2B. Formed.

Therefore, since the raw material supplied to the raw material input unit 133 passes through the pitch expanding unit 135 where the pitch is widened while melting and shrinking, the screw blade 136 is fixed to the inner circumferential surface of the pyrolysis reaction tube 131. The molten mass that is not melted to the inside of the screw blade 136 is not transported due to the through hole 138 of the screw blade 136 and is stagnated at that position or pushed back to the raw material input part 133 to receive sufficient heat supply. It will melt and vaporize.

That is, in the section where the melt of the raw material is easily fixed, the interval of pitch is widened, and the large molten agglomerate which is not completely melted is not transported through the through hole anymore and is provided with a sufficient heat supply to melt and vaporize it. A continuous pyrolysis process is possible.

Since physical and chemical changes such as melting and vaporization of raw materials should be applied from the outside by endothermic reaction, an electric heater 145 is installed outside the pyrolysis reaction tube 131 to surround the outer circumferential surface.

The electric heater 145 is installed while covering the outer circumferential surface of the pyrolysis reaction tube 131 so as to be in direct contact with the outer circumferential surface of the pyrolysis reaction tube 131 so as to supply heat, so that heat is evenly distributed to the center of the pyrolysis reaction tube 131. It is intended to be delivered.

3 is a view showing a motor drive of the pyrolysis reaction tube according to an embodiment of the present invention.

As shown in FIG. 3, the inside of the pyrolysis reaction tube 131 maintains a high temperature of 500 ° C. to 900 ° C., thereby causing a large temperature difference with the outside, such that the variable pitch screw 130 and the pyrolysis reaction tube 131 are in the axial direction. And the packing housing 305 formed on the outside of the reaction tube casing 315 through which the axis 132 of the variable pitch screw 130 is sealed, thereby sealing the pyrolysis reaction tube 131 and the housing cover 310. The thermal expansion play 317 is formed in this.

That is, the packing housing 305 and the housing cover 310 are assembled by bolts in a state spaced apart by the thermal expansion gap 317, and then the pyrolysis reaction tube 131 is heated by an electric heater, thereby changing the variable pitch screw 130. ) And the pyrolysis reaction tube 131 extends by the thermal expansion gap 317 in the axial direction, so that the packing housing 305 and the housing cover 310 closely adhere to each other.

The bearing 320 and the packing member 325 are inserted and coupled to each other between the shaft 132 and the packing housing 305 of the variable pitch screw 130 to maintain friction and reduce friction.

4 is a view showing a vertical gas pipe and a horizontal gas pipe according to an embodiment of the present invention.

As shown in FIG. 4, the regeneration oil gas generated in the pyrolysis reaction tube 131 is collected in the vertical gas pipe 151 and the horizontal gas pipe 153. The anti-caulking screw 155 driven by the motor 405 is provided to prevent the problem of being stuck and stuck to the inner circumferential surface of the 151 and the horizontal gas pipe 153.

That is, while the gas vaporized at a high temperature is convection and passes through the vertical gas pipe 151, the carbon component is first fixed to the inner circumferential surface of the horizontal gas pipe 153 while the carbon component is fixed to the vertical gas pipe 151 and reduced. The carbon components fixed to the inner circumferential surfaces of the vertical gas pipe 151 and the horizontal gas pipe 153 are removed while the anti-caulking screw 155 rotates.

Therefore, since the anti-caulking screw 155 is simultaneously operated by the motor 405 during the operation of the emulsifying device, it is possible to prevent the caulking shape of the vertical gas pipe 151 and the horizontal gas pipe 153 due to the deposition of carbon components. It is possible to operate the continuous emulsifier can be equipped with productivity and economy.

In addition, the screw blade 159 of the anti-caking screw 155 may be formed with a gas movement hole 158 cut between the end of the blade from the outer peripheral surface of the screw shaft 157, pyrolysis reaction tube 131 ) Serves as a moving passage by convection of gas vaporized.

Meanwhile, the vertical gas pipe 151, the horizontal gas pipe 153, and the anti-caulking screw 155 also expand in the axial direction because the high temperature is maintained, thereby sealing the vertical gas pipe 151 and preventing the shaft of the anti-caulking screw 155 ( A thermal expansion gap 417 is formed between the vertical housing 413 and the vertical housing cover 415 formed outside the vertical gas pipe casing 410 through which the 157 penetrates.

The thermal expansion gap 427 also seals between the horizontal gas pipe 153 and the horizontal housing 423 and the horizontal housing cover 425 formed outside the horizontal gas pipe casing 420 through which the axis of the anti-caulking screw 155 penetrates. Is formed.

Between the shaft 157 and the vertical housing 415 and the horizontal housing 423 of the anti-caking screw 155 is inserted into the bearing 430 and the packing member 435 in consideration of the friction to maintain the airtight and friction To reduce

Anti-caulking emulsifying apparatus according to an embodiment of the present invention may be further provided with a control panel for controlling the opening and closing timing of the knife valve and the drive motor of the variable pitch screw and the anti-caulking screw.

According to the present invention having such a structure and shape, in the emulsification apparatus for pyrolyzing vinyl or plastic waste to produce regenerated oil, the coking phenomenon occurs due to the deposition of carbon components and prevents the pyrolysis reaction tube or gas pipe from being blocked. As a result, it is possible to operate the emulsifier, which has the effect of increasing the productivity of the recycled oil and the efficiency and economic efficiency of the process.

The above description is illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

1 is a schematic view showing an anti-caulking emulsifying apparatus according to an embodiment of the present invention;

Figure 2a is a side view showing a pyrolysis reaction tube of the anti-caulking emulsification apparatus according to an embodiment of the present invention;

FIG. 2B is an enlarged view of a portion A of FIG. 2A; FIG.

3 is a view showing a motor drive of the pyrolysis reaction tube according to an embodiment of the present invention;

4 is a view showing a vertical gas pipe and a horizontal gas pipe according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

110: raw material supply hopper 123: upper knife valve

125: lower knife valve 130: variable pitch screw

131: pyrolysis reaction tube 135: pitch expansion portion

137: pitch reduction portion 138: through hole

145: electric heater 151: vertical gas pipe

153: horizontal gas line 155: anti-caulking screw

158: gas moving hole 305: packing housing

310: housing cover 315: reaction tube casing

410: vertical gas pipe casing 420: horizontal gas pipe casing

Claims (10)

A raw material supply hopper for supplying waste vinyl or waste plastic as a raw material to a pyrolysis reaction tube; A knife valve installed at an outlet pipe of the raw material supply hopper to inject a predetermined amount of raw material into a pyrolysis reaction tube; The pitch of the screw blade is widened to thermally decompose the raw material supplied from the raw material supply hopper, and to transfer the raw material and ash to the ash outlet while removing the caulking material caused by the deposition of carbon components of the liquefied or vaporized raw material therein. A pyrolysis reaction tube having a variable pitch screw having an enlarged portion and a pitch reduced portion having a narrower pitch; An electric heater applying heat while surrounding an outer circumferential surface of the pyrolysis reaction tube; A vertical gas pipe connected to the pyrolysis reaction pipe to vertically convex the vaporized gas; And A horizontal gas pipe having a transfer pipe for transferring the gas introduced through the vertical gas pipe to a condenser; Anti-caulking emulsifying apparatus comprising a. The method of claim 1, The inside of the vertical gas pipe and the horizontal gas pipe, anti-caulking emulsifying apparatus, characterized in that the anti-caulking screw for removing the caulk stuck to the inner peripheral surface by deposition of the carbon component of the vaporized raw material. The method of claim 2, And a control panel for controlling the opening and closing timing of the knife valve and the drive motor of the variable pitch screw and the anti-caulking screw. The method according to any one of claims 1 to 3, An anti-caulking emulsifying apparatus, characterized in that a through hole formed between the end of the blade from the outer circumferential surface of the screw shaft is formed in the screw blade of the pitch expanding portion and the pitch reducing portion of the variable pitch screw. The method according to any one of claims 1 to 3, Anti-coking emulsion device characterized in that the pyrolysis reaction tube, the vertical gas pipe and the horizontal gas pipe is provided with two or more. The method according to any one of claims 1 to 3, The knife valve is composed of a pair of the upper knife valve and the lower knife valve are installed spaced apart from each other, the upper knife valve is opened when the upper knife valve is closed when the raw material is filled in the outlet pipe of the raw material supply hopper a certain amount. After the lower knife valve is opened and the raw material is introduced into the pyrolysis reaction tube, anti-caulking emulsifying apparatus characterized in that the inflow of air is minimized. The method according to any one of claims 1 to 3, The anti-coking emulsion device characterized in that the thermal expansion gap is formed between the packing housing and the housing cover formed on the outer side of the reaction tube casing sealing the pyrolysis reaction tube and the shaft of the variable pitch screw penetrates. The method according to any one of claims 1 to 3, The anti-coking emulsion device characterized in that the thermal expansion gap is formed between the vertical housing and the vertical housing formed on the outer side of the vertical gas pipe casing which seals the vertical gas pipe and passes through the axis of the anti-caulking screw. The method according to any one of claims 1 to 3, And a thermal expansion gap formed between the horizontal housing and the horizontal housing cover which is formed on the outside of the horizontal gas pipe casing through which the axis of the anti-caulking screw penetrates the horizontal gas pipe. The method of claim 3, wherein The screw blade of the anti-caulking screw provided in the vertical gas pipe and the horizontal gas pipe is provided with a gas movement hole formed between the end of the blade from the outer peripheral surface of the screw shaft.

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