KR200299241Y1 - Regenerating device of waste plastics pyrolyzing oil - Google Patents

Abstract

The present invention relates to a waste synthetic resin pyrolysis oil regeneration device, in which various waste synthetic resins are introduced into a pyrolysis furnace to thermally decompose the hot combustion gas generated in the combustion chamber as an indirect heat source to extract pyrolysis oil, and supply waste to fuel in the combustion chamber. The present invention is to provide a waste synthetic resin pyrolysis oil regeneration device having a low maintenance cost by inputting residual gas remaining after pyrolysis oil extraction from a condenser into a combustion chamber as a fuel.

That is, the present invention provides a combustion chamber 30 to one side of the regeneration chamber 20 in which the reactor 10 is installed in the upper portion, and a heat exchanger 40 to the other side thereof so as to communicate with each other. The upper side relates to the waste synthetic resin pyrolysis oil regeneration device (A) connected to the condenser 50, the inlet of the waste synthetic resin finely pulverized through the crusher and the grinder by the automatic input device 11 into the reactor It is possible to continuously input without waste to increase raw material (waste synthetic resin, waste) throughput and product (= pyrolysis oil) production, and two knife gate valve 62 on the discharge pipe 61 connected to the lower side of the reactor 10 (63) is installed, the lower portion is formed with a discharge tank 64 into which water is introduced, and the transfer pipe (65) shaft-mounted from the lower portion of the discharge tank (64) is configured to be inclined upwardly. The automatic ASH take-off device 60 is formed to be discharged without inflow of air.

The ignition burner 31 and the blower 32 are integrally formed at the inlet of the combustion chamber 30, and at one side thereof, a communication tube 33 and a blower fan 34, which are hermetically connected to the regeneration chamber 20, are installed. 40 is formed in a circulation structure with the water tank 80 to cool the combustion gas generated after the combustion chamber 30 passes through the regeneration chamber 20 and warms the reactor 10, and on the other side, The gas purification device 70 is installed to minimize environmental pollution.

The condenser 50 is formed in a circulation structure with the water tank 80 to liquefy the pyrolysis gas introduced from the reactor 10, and the combustion chamber (not shown) to transfer some unliquefied residual gas to the combustion chamber 30. The gas transfer pipe 51 connected to 30 is formed at one side, and the lower portion forms liquefied pyrolysis oil to connect with the regeneration oil tank 90 to increase the raw material throughput and the product yield, and maximize energy efficiency and economy. You can expect a number of effects.

Description

Regenerating device of waste plastics pyrolyzing oil

The present invention relates to a waste synthetic resin pyrolysis oil regeneration device, and more particularly, to add various waste synthetic resins to a pyrolysis furnace (= reactor) to thermally decompose high-temperature combustion gas generated in a combustion chamber as an indirect heat source, thereby producing high value-added pyrolysis oil. And the waste to be supplied as fuel in the combustion chamber, but some residual gas that has not been liquefied after the extraction of pyrolysis oil is also introduced into the combustion chamber and recycled, thereby eliminating the need for a separate residual gas treatment facility. It is to provide a playback device.

In general, the treatment of waste synthetic resins depends on incineration or landfill, but incineration releases harmful substances such as dioxin, which causes environmental pollution.Incinerators, such as general fluidized grate, incinerator load due to high calorific value High throughput is reduced, and the treatment cost is rising due to mechanical corrosion due to molten synthetic resin. Due to problems such as landfill shortage and ground instability, landfill treatment has been well known for reducing environmental pollution and recovering fuel oil or petroleum resources by pyrolysis in terms of recycling resources.

The conventional waste synthetic resin pyrolysis oil regeneration device has a structure in which the entire reactor is sealed to maintain a reducing atmosphere (= environment), or a continuous operation is not possible in order to maintain a reduced pressure atmosphere. There is a problem that can only be solved, the present inventors have applied for a patent application for the automatic input device that can be automatically input after removing the air from the waste synthetic resin pyrolysis oil regeneration device to the regeneration chamber (application number: 10- 2001-77266).

However, when the above-mentioned automatic input device is applied, the part related to the discharge of residue (ASH) after continuous pyrolysis also needs to be improved in relation to the automation part of the whole process, and also the continuous heat source (= waste resin) Since the device is needed for supplying the pyrolysis, the structure is complicated, and the installation cost and maintenance cost are increased. Also, the economical efficiency is low because separate electric or expensive kerosene, diesel, etc. are used to obtain the heat source. There is an urgent need for the development of a device that can eliminate the above problems due to the disadvantages.

Therefore, in the present invention, the material (= waste synthetic resin) is decomposed to the air during the operation of the pyrolysis furnace to eliminate the problems of material input and discharge of the waste synthetic resin pyrolysis oil regeneration device as described above. It provides a continuous synthetic resin pyrolysis oil regeneration device that can continuously supply the heat source obtained by burning the waste and automatic anoxic discharge of the residue (ASH) due to pyrolysis during the pyrolysis process while automatically supplying continuously after removal. This invention has been completed with the technical problem of the design.

1 is a plan layout schematically showing the overall configuration of the present invention

Figure 2 is a front layout schematically showing the overall configuration of the present invention

Figure 3 is an excerpt front view of the regeneration chamber and the condenser coupled to the reactor in the present design

Figure 4 is a schematic cross-sectional view showing sequentially the operating state of the automatic continuous ASH take out device of the present invention

5 is a flow chart showing an embodiment of the present invention

6 is a process diagram showing an embodiment of the present invention

■ Explanation of symbols used in main part of drawing ■

A: waste synthetic resin pyrolysis oil regeneration device 10: reactor

11: Automatic feeding device 12: Transfer screw

13: Inlet pipe 14: Hydraulic cylinder

15: Knife gate valve 20: Regeneration chamber

30: combustion chamber 31: ignition burner

32: blower 33: communication pipe

34: blower fan 40: heat exchanger

50: condenser 51: gas transfer pipe

60: automatic continuous ASH take-off device 61: discharge pipe

62, 63: Knife gate valve 64: Discharge tank

65: transfer pipe 66: transfer screw

70: gas purification device 80: water tank

90: regeneration oil tank

1 and 2 is a plan view and a front layout schematically showing the overall configuration, Figure 3 is an excerpt front view of the regeneration chamber and the condenser coupled to the reactor of the present invention, Figures 4 to 5 shows an embodiment of the present invention When the present invention is described in detail below as a flow chart and process diagram as follows.

According to the present invention, the combustion chamber 30 is installed at one side of the regeneration chamber 20 in which the reactor 10 connected with the automatic input device 11 is installed therein, and the heat exchanger 40 is installed at the other side thereof. The upper side of the reactor (10) relates to a waste synthetic resin pyrolysis oil regeneration device (A) connected to the condenser 50, the reactor 10 is an automatic continuous supply of waste synthetic resin from which air is removed automatically It is connected to the input device 11 and sealed structure, and inside the shaft is formed of a dual structure to prevent bending and deflection at high temperature, the feed screw 12 for transferring the residue during thermal decomposition of the waste synthetic resin shaft installation In the upper part, the inlet pipe 13 connected to the condenser 50 and the knife gate valve 15 opened and closed by the hydraulic cylinder 14 is formed in a sealed structure, and pyrolysis is terminated to the lower side of the end. Person who can extract ash (= Ash) without inflow of air ASH continuous take-out device 60 are integrally formed.

The automatic continuous ASH take-out device 60 is provided with two knife gate valves 62 and 63 on the discharge pipe 61 connected to the reactor 10, and water is introduced into the lower portion to prevent the inflow of air. The discharge tank 64 is formed, and the transfer pipe 65 in which the transfer screw 66 is axially installed from the discharge tank 64 is inclined upwardly.

In addition, the ignition burner 31 and the blower 32 are integrally formed at the inlet of the combustion chamber 30, and at one side, a blower fan 34 capable of supplying air into the communication tube 33, which is hermetically connected to the regeneration chamber 20, is provided. The heat exchanger 40 is circulated with the water tank 80 to cool the combustion gas generated after the combustion chamber 30 passes through the regeneration chamber 20 and warms the reactor 10. On the other side, the gas purification device 70 for purifying the combustion gas is provided.

In addition, the condenser 50 is formed in a circulating structure with the water tank 80 to liquefy the pyrolysis gas introduced from the reactor 10, and the combustion chamber to transfer some unliquefied residual gas to the combustion chamber 30. The gas transfer pipe 51 connected to 30 is formed at one side, and the lower portion is formed to connect the liquefied pyrolysis oil to the regeneration oil tank 90 and the pipe.

In the figure, reference numeral 71 denotes a multicyclone, 72 denotes an I-D fan, 73 denotes a washing tower, and 74 denotes a stack.

The waste synthetic resin pyrolysis oil regeneration device (A) of the present invention, which can be configured as described above, removes air during operation of the waste synthetic resin after operating the pyrolysis furnace, and continuously heats and obtains the heat source obtained by burning waste. As it is possible to continuously supply continuously, its operation will be described in more detail below.

Through the crusher and the crusher by the automatic feeding device 11 of the present invention, the finely ground waste synthetic resin is continuously introduced without introducing air into the reactor 10. As described above, the automatic injection device 11 is the inventor of the present application (patent application number: 10-2001-77266) bar detailed description will be omitted.

In the reactor 10, the finely divided waste resin is thermally decomposed into pyrolysis gas and residues by the complete combustion gas in the regeneration chamber 20 introduced from the combustion chamber 30, and the pyrolyzed gas is formed on the upper portion of the reactor 10. When the inlet pipe 13 is introduced to a predetermined pressure or more, the knife gate valve 15 is opened by the hydraulic cylinder 14 to be introduced into the condenser 50, and the pyrolysis gas in the condenser 50 is introduced into the water tank 80. Pyrolyzed oil is generated as water is liquefied by water, and pyrolyzed oil is stored in the regeneration oil tank 90, and some residual gas which is not liquefied is reduced to the combustion chamber 30 through the gas transfer pipe 51 to be recycled. It does not require a separate combustion prevention facility, the residue is a double screw transfer screw inside the reactor 10 to the discharge pipe 61 connected to the lower side of the reactor 10 as shown in FIG. Discharged by 12, When the upper knife gate valve 62 on the outlet pipe 61 is opened and is in close contact with the lower part, the upper knife gate valve 62 is closed and the lower knife gate valve 63 is opened and discharged to the discharge tank 64 when the upper knife gate valve 62 is opened. . At this time, the transfer screw 12 controls the residence time by controlling the rpm according to the components of the various waste synthetic resins or the mixing amount of each component, and the discharge tank 64 is filled with water so that the end of the discharge pipe 61 and the atmosphere Since no air is introduced into the reactor 10 because it is not in contact, the reactor 10 may maintain a sealed state without air. And the residue of the discharge tank 64 is completely discharged to the outside by the transfer screw 66 is axially installed in the transfer pipe (65).

In addition, the combustion gas, which is a heat source of the reactor 10, converts waste into dry gas (= unburned gas) in a dry flow furnace (not shown), and sends the waste gas to the combustion chamber 30, and the sent dry gas is a blower 32. By the inlet air and the ignition burner 31 to be completely burned in the combustion chamber (850 ° C. to 1200 ° C.), and combined with the air supplied by the blowing fan 34 of the combustion chamber 30 to obtain an appropriate temperature (700 ° C. to It becomes a combustion gas of 850 degreeC, and becomes an indirect heat source which keeps the temperature inside the reactor 10 in the regeneration chamber 20 at the optimal temperature (300 degreeC-500 degreeC) which waste synthetic resin thermally decomposes.

Combustion gas passing through the regeneration chamber 20 is almost recovered heat retention in the reactor (10), lowered below 250 ℃ while passing through the heat exchanger (40) flows into the gas purifier 70, inflow The combustion gas is purified through the multicyclone 71, the ID Fan 72, the washing tower 73, and discharged into the atmosphere through the stack 74 to minimize environmental pollution.

The waste synthetic resin pyrolysis oil regeneration device (A) can be applied to drying of food waste or sewage sludge drying and incineration of sewage treatment plants.

As described above, the waste synthetic resin pyrolysis oil regeneration device (A) provided by the present invention has a structure in which the entire apparatus is sealed in order to maintain a reducing atmosphere (= environment), or to maintain an atmosphere of reduced pressure. Batch operation was not possible due to continuous input and automatic input device 11 and reactor 10 compared with other external heat sources such as oil, electricity, and gas to obtain pyrolysis oil. Can be thermally decomposed into a closed structure without the inflow of air, and the heat source can also be used to burn waste synthetic resin by using the combustion gas completely burned in the combustion chamber (30) using dry gasified waste. It can be supplied continuously, increasing the throughput of raw materials and production, and if the heat source cost is rarely incurred or the waste treatment fee is received. So you can use it and to maximize the recycling and economy of energy and resource efficiency, it is expected that the effects are designed to be utilized, such as dry or even in the sewage treatment plant for sewage sludge drying and incineration of various food waste.

Claims (5)

Various waste synthetic resins (PE, PP, PS, PVC, etc., or mixtures thereof) are removed from the air during operation of the reactor (10), and then the continuous source of heat is obtained by burning waste while enabling continuous supply and discharge automatically. In constructing a waste synthetic resin pyrolysis oil regeneration device (A) that can be continuously supplied to recover the pyrolysis oil; The combustion chamber 30 is installed at one side of the regeneration chamber 20 having the reactor 10 installed therein so as to communicate with the heat exchanger 40 at the other side, and the condenser 50 at the upper side of the reactor 10. ) Is formed at one side of the lower side to communicate with the automatic ASH take-off device 60, the condenser 50 is connected to the regeneration oil tank 90 to recover and store the pyrolysis oil, the heat exchanger 40 Is formed in a circulation structure with the water tank 80 to cool the combustion gas after the reactor 10 is warmed, and on the other side is provided with a gas purifier 70 for purifying the combustion gas Waste synthetic resin pyrolysis oil regeneration device. The method of claim 1; The reactor 10 is connected in a closed structure with an automatic dosing device 11 that automatically and continuously supply the waste synthetic resin from which the air is removed, the inside of the double structure that can transfer the residues during the thermal decomposition of the waste synthetic resin The feed screw 12 is axially installed, the upper portion is connected to the condenser 50, the inlet pipe 13 formed with a knife gate valve 15 that is opened and closed by the hydraulic cylinder 14 is composed of a closed structure, A waste synthetic resin pyrolysis oil regeneration device, characterized in that the automatic continuous ASH take-out device (60) capable of taking out ash (= Ash) in which pyrolysis has been terminated without inflow of air is integrally formed under the end portion. The method of claim 2; The automatic continuous ASH take-out device 60 is provided with two knife gate valves 62 and 63 on the discharge pipe 61 connected to the reactor 10, and water is introduced into the lower portion to prevent the inflow of air. Discharge tank (64) is formed, waste synthetic resin pyrolysis oil regeneration device, characterized in that the transfer pipe (65) is installed inclined upward from the discharge tank (64) shaft is installed. The method of claim 1; The combustion chamber (30) is a combustible pipe (850 ℃ ~ 1200 ℃) in the combustion chamber 30 by the ignition burner 31 and the air flowed through the blower 32 to the dry gas gas sent by the dry distillation gas waste Together with the air supplied by the blowing fan 34 on the (33) side, the combustion gas has a proper temperature (700 ° C to 850 ° C), and the temperature inside the reactor 10 formed above the regeneration chamber 20 is increased. The waste synthetic resin pyrolysis oil regeneration device, characterized in that formed on the one side of the combustion chamber 30 to be supplied to the regeneration chamber 20 by a hermetically connected communication tube 33 to be an indirect heat source maintained at 300 ℃ to 500 ℃. . The method of claim 1; The condenser 50 is formed in a circulation structure with the water tank 80 to liquefy the pyrolysis gas introduced from the reactor 10, and the combustion chamber 30 to transfer some unliquefied residual gas to the combustion chamber 30. And a gas transfer pipe (51) connected to one side, and the lower portion of the gas transfer pipe (51) is formed to connect the liquefied pyrolysis oil to the regeneration oil tank (90).