KR102638586B1 - Gas exhaust pipe cleaning device of waste plastic emulsification device - Google Patents

Abstract

The present invention can periodically and stably remove foreign substances that occur when waste plastic is melted at high temperature and deposit and adhere to the internal wall using a screw method, and the removed foreign substances can be stably discharged. It consists of an exhaust pipe through which molten gas moves and is exhausted, a screw part for removing foreign substances attached to the inside of the exhaust pipe, and a removal unit for removing foreign substances attached to the screw part; By installing a screw rotating screw unit inside the exhaust pipe, foreign substances can be removed periodically and stably, which has the effect of keeping the exhaust pipe clean.

Description

Gas exhaust pipe cleaning device of waste plastic emulsification device}

The present invention relates to a waste plastic emulsification device, and more specifically, to a waste plastic emulsification device, which can periodically and stably remove oil vapor generated when waste plastic is melted at high temperature and foreign substances deposited and attached to the inner wall of the exhaust pipe through which the gas is exhausted. This technology relates to a gas exhaust pipe cleaning device for a waste plastic emulsification device that can be applied to the waste plastic processing industry, the waste plastic processing equipment industry, and the waste plastic processing equipment manufacturing industry.

In general, plastic is a material that can be molded by heating, pressurizing, or both, or a resin product using these materials. Plastic generally refers to a synthetic resin. In the final product, it is solid and has a high molecular weight, but when molded, it has fluidity and is easy to mold, making it possible to produce articles of various shapes and polymerize various materials using petroleum as the main raw material. As it is manufactured in the form of a polymer, it is possible to produce polymer compounds with various functions and properties by polymerizing materials that can have the properties desired by the user, and its use and amount of use are rapidly increasing. In addition, plastic is a type of petroleum compound that uses petroleum as its main raw material. As it is manufactured in the form of a polymer, it is difficult to decompose and has excellent corrosion resistance, allowing it to be used for a long time. It is easy to mold, so it can be manufactured in various shapes, and is light in weight. Its usage is rapidly increasing as it is used in a variety of applications, from daily necessities to various industrial products.

However, waste plastics discarded after use are difficult to dispose of in landfills due to their non-degradability, which is a characteristic of plastics. When incinerated, various harmful gases are emitted and pollute the air environment, making disposal of waste plastics difficult. .

In addition, as reserves of oil, including petroleum, which is the fuel used to produce plastic, are shrinking, the price of oil is rising, and as resources are depleted, the need to reuse the oil existing inside waste plastic is increasing.

Accordingly, recently, an oil reduction device for waste plastic has been developed to reduce and recover the oil contained inside the waste plastic, thereby increasing resource recycling.

However, the conventional waste plastic oil reduction device has a device for shredding the collected waste plastic, a device for pyrolyzing the waste plastic, and a device for reducing oil from the gas generated by the thermal decomposition of the waste plastic, respectively, to reduce the oil. Accordingly, a moving process was added for each process, which lowered the process speed, and there was a problem of gas by-products attaching to the inner wall of the exhaust pipe when the decomposed gas was moved.

In addition, in the conventional waste plastic oil reduction device, the molten gas generated during thermal decomposition of waste plastic passes through the exhaust pipe, and if gas by-products are continuously deposited on the inner wall of the exhaust pipe during exhaust, it may become clogged or prevent smooth exhaust of exhaust gas. Therefore, there was a problem of lowering the melting efficiency.

In addition, the conventional waste plastic oil reduction device had the problem of loss due to the need to replace the exhaust pipe or stop operation of the melting furnace for a long time to clean and remove by-products when the exhaust pipe was blocked by by-products.

As a result, exhaust gas by-products attached to the inside of the exhaust pipe can be removed in real time, increasing the convenience of management and extending the life of the exhaust pipe. At the same time, foreign substances attached to the shaftless screw can be incidentally removed and easily discharged. There is an urgent need for an improved waste plastic emulsification device gas exhaust pipe cleaning device.

Registered Patent 10-0524376 (Solid fuel manufacturing device using waste plastic) ) Registered Patent 10-0955297 (Oil reduction device for waste plastic) Public patent 10-2019-0086063 (Waste plastic pyrolysis device)

The present invention was developed to solve the above problems, and provides a gas exhaust pipe cleaning device for a waste plastic emulsification device that periodically and stably removes foreign substances by installing a screw part that rotates in a screw manner inside the exhaust pipe. There is a purpose.

The purpose of the present invention is to enable the screw part to be combined and disassembled at the end of the exhaust pipe, and to be stably separated and managed along the guide rail when dismantled.

The purpose of the present invention is to remove foreign substances adhering to the screw of the screw unit using a removal unit to ensure that the rotation of the screw and the foreign matter removal efficiency are constant.

The present invention aims to allow foreign substances removed by the removal unit to be collected inside the removal unit body and then discharged to the outside.

The gas exhaust pipe cleaning device of the waste plastic emulsification device according to an embodiment of the present invention is an exhaust pipe that is installed on the rear side of a pyrolysis tank that receives the waste plastic and heats the waste plastic to a high temperature, and exhausts molten gas. , a screw part installed inside the exhaust pipe and operating in a screw method to remove internal wall deposits or foreign substances, installed on the lower side of the exhaust pipe and a portion of the lower surface of the exhaust pipe to remove foreign substances attached to the screw unit. A removal body installed to close the removed opening and coupled to close the opening, and a removal part formed by a scraper protruding from the top of the removal body; The removal body is shaped like a square cylinder and fixes the body end of the scraper to the inner wall, and a screw is inserted into the gap of the split knife divided into a 'U' shape at the top of the body end to separate foreign substances attached to the screw as it rotates. A gas exhaust pipe cleaning device for a waste plastic emulsification device is provided, wherein a bearing is installed between the body end and the dividing knife so that the dividing knife can rotate while making contact when the screw rotates.

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Additionally, an outlet is provided at the lower part of the removal body to remove separated foreign substances.

According to an embodiment of the present invention, by installing a screw part that rotates in a screw manner inside the exhaust pipe, foreign substances can be removed periodically and stably, which has the effect of keeping the exhaust pipe clean.

In addition, the screw part can be combined and disassembled at the end of the exhaust pipe, and can be stably separated along the guide rail when dismantled, increasing the convenience of work and ensuring safe management.

In addition, by removing foreign substances adhering to the screw of the screw unit using the removal unit, the rotation and foreign matter removal efficiency of the screw are constant, which has the effect of ensuring stable eccentricity or rotation.

In addition, foreign substances removed by the removal unit can be collected inside the removal unit body and then discharged to the outside, thereby enabling continuous management.

1 is an overall configuration diagram of the emulsification device to which the gas exhaust pipe cleaning device of the waste plastic emulsification device according to the present invention is applied;
Figure 2 is an overall configuration diagram of the gas exhaust pipe cleaning device of the waste plastic emulsification device according to the present invention;
Figure 3 is an exploded perspective view of the gas exhaust pipe cleaning device of the waste plastic emulsification device according to the present invention;
Figure 4 is a partial cross-sectional view of the gas exhaust pipe cleaning device of the waste plastic emulsification device according to the present invention;
Figure 5 is a side view showing the rail portion of the gas exhaust pipe cleaning device of the waste plastic emulsification device according to the present invention.
Figure 6 is a state in which the screw is mounted on the rail part of the gas exhaust pipe cleaning device of the waste plastic emulsification device according to the present invention;
Figure 7 is a cross-sectional view of the removal unit installed in the gas exhaust pipe cleaning device of the waste plastic emulsification device according to the present invention;
Figure 8 is a perspective view of the screw installed between the splitting knives in the gas exhaust pipe cleaning device of the waste plastic emulsification device according to the present invention;
Figure 9 is a state in which the screw is dismantled from the exhaust pipe of the gas exhaust pipe cleaning device of the waste plastic emulsification device according to the present invention;
Figure 10 is a diagram showing a state in which foreign substances attached to the screw are removed by the removal unit in the gas exhaust pipe cleaning device of the waste plastic emulsification device according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Throughout the specification, similar parts are given the same reference numerals.

As shown in Figures 1 to 8, when the configuration of the present invention is explained with reference to the accompanying drawings, the gas exhaust pipe cleaning device of the waste plastic emulsification device is applied to the waste plastic emulsification device, and the molten gas moves and is exhausted. The cleaning device 100 is comprised of an exhaust pipe 20, a screw unit 30 for removing foreign substances attached to the inside of the exhaust pipe 20, and a removal unit 40 for removing foreign substances attached to the screw unit 30. Compose.

The cleaning device 100 is installed on the rear side of the pyrolysis tank 10, which receives waste plastic 1 and heats the waste plastic 1 to a high temperature, and forms an exhaust pipe 20 for exhausting molten gas.

The pyrolysis tank 10 has a lying cylindrical shape, and has an input door 11 on the front surface through which waste plastic 1 can be input, and a plurality of doors 11 at the bottom for melting and heating and decomposing the waste plastic 1. Constructs the burner (12).

An exhaust pipe 20 is installed in the horizontal direction at the center of the rear surface of the pyrolysis tank 10, and a plurality of discharge pipes 22 for exhausting exhaust gas are formed at the upper part of the exhaust pipe 20.

The diameter of the exhaust pipe 20 is appropriately sized depending on the capacity of the pyrolysis tank 10 or the flow capacity of the exhaust gas.

In addition, a screw unit 30 is installed inside the exhaust pipe 20 and operates in a screw manner to remove deposits or foreign substances from the internal wall.

The screw part 30 opens one end of the exhaust pipe 20 and has a continuous screw shape installed to rotate inward, forming a screw 31 that has a coil shape and does not have a central axis.

The screw 31 is made of a wide plate in the form of a coil with a diameter that contacts the inner wall of the exhaust pipe 20. As the screw 31 rotates, it scrapes and removes foreign substances from the inner wall of the exhaust pipe 20 using the concept of a scraper operation. and configured so that it can be moved.

It is installed at the end of the exhaust pipe 20 and consists of a drive motor 32 that rotates the screw 31.

The motor shaft 33 of the drive motor 32 penetrates and is installed integrally with the motor body 34, forming a sealing cover 35 that seals the end of the exhaust pipe 20.

The exhaust pipe 20 and the sealing cover 35 form flange ends at the ends where they come into contact with each other and are joined using bolts and nuts.

Guide blocks 36 for movement are formed on the lower front and rear sides of the drive motor 32.

When dismantling the screw 31 from the exhaust pipe 20 simultaneously with the drive motor 32, a rail 51 is formed to move the drive motor 32 and the screw 31 and guide them so that they do not fall.

The rail 51 includes a pair of transfer rails 52 along which the drive motor 32 moves and a plurality of auxiliary rails 53 along the length to prevent the screw 31 from falling.

The rails 51 are installed in pairs on both sides of the upper side, arranged side by side toward the rear of the exhaust pipe 20, and 4 to 5 auxiliary rails 53 are installed in parallel with the rails 51.

In addition, it is installed on the lower side of the exhaust pipe 20 and includes a removal part 40 for removing foreign substances attached to the screw part 30.

The removal part 40 is installed to close the partially removed opening part 21 on the lower surface of the exhaust pipe 20.

A removal body 41 is formed that is coupled to close the opening 21. The removal body 41 is configured to surround the opening 21 of the exhaust pipe 20.

The removal body 41 has a square cylindrical shape and is configured to fix the body end 43 of the scraper 42 to the inner wall.

The screw 31 is inserted into the gap 45 of the dividing knife 44 divided into a 'U' shape at the top of the body end 43 and rotates to separate foreign substances attached to the screw 31.

A bearing 46 is installed between the body end 43 and the dividing knife 44 so that when the screw 31 rotates, the dividing knife 44 contacts and rotates.

The scraper 42 is formed in a U-shape divided into two, and the gap 45 is configured to allow the screw 31 to be inserted into contact with both sides of the screw 31.

In addition, a cooling unit 60 is provided at the lower part of the removal body 41 to cool the separated foreign substances.

The cooling unit 60 has a cooling pipe 63 installed along the inner wall of the cooling chamber 62, and when the temperature of the exhaust pipe 20 decreases after the operation of the pyrolysis tank 10 is stopped, the cooling pipe ( Refrigerant is supplied through 63) to cool foreign substances collected in the cooling chamber 62 so that they can be easily discharged.

An outlet 61 is formed at the lower part of the cooling unit 60 to discharge foreign substances. The outlet 61 is installed on the lower surface of the cooling chamber 62 and is installed to open downward so that foreign substances fall. It is structured so that it can be done.

The state of use of the cleaning device 100 configured as above is as follows.

As shown in FIGS. 1 to 10, the cleaning device 100 opens the input door 11 of the pyrolysis tank 10, inputs a fixed amount of waste plastic 1, and then closes the input door 11. I order it.

Thereafter, the burner 12 installed at the lower part of the pyrolysis tank 10 is operated and the pyrolysis tank 10 is rotated by the operation of the mixing motor 13.

Next, during the process of melting and pyrolyzing the waste plastic 1 inside the pyrolysis tank 10, when decomposition gas of the waste plastic 1 is generated in the internal space of the pyrolysis tank 10, the pyrolysis tank 10 ) Due to the increase in internal pressure, the decomposed gas flows through the exhaust pipe (20).

Next, the decomposed gas flowing through the exhaust pipe 20 passes through a separate air purification device through the discharge pipe 22 and is exhausted into the atmosphere through a purification process.

At this time, the decomposed gas generated in the pyrolysis tank 10 continuously flows through the exhaust pipe 20 and flows through the discharge pipe 22. The decomposed gas contains smoke, oil vapor, moisture, foreign substances, etc. mixed together and flows through the exhaust pipe 20. It flows at high temperature through (20).

In this way, the exhaust pipe 20 is installed horizontally, so foreign substances or oil vapor, etc., which have a large specific gravity contained in the decomposed gas, adhere to the internal wall in a tar-like form over time, reducing the internal space of the exhaust pipe 20. This occurred, and the discharge pipe 22 was installed vertically, so that the attachment rate of foreign substances was lower than that of the exhaust pipe 20.

The cleaning device 100 of the present invention operates the drive motor 32 when foreign matter is attached to the inner wall of the exhaust pipe 20, and the screw 31 connected to the motor shaft 33 rotates to clean the inside of the exhaust pipe 20. It has the feature of cleaning the exhaust pipe 20 while performing the function of scraping and removing foreign substances attached to the wall.

At this time, when removing foreign substances from the exhaust pipe 20 using the cleaning device 100, the foreign substances remain in a sticky state like tar due to the high temperature and move downward along the direction in which the screw 31 rotates. It moves.

At this time, the foreign matter scraped from the exhaust pipe 20 by the screw 31 flows into the inside of the removal body 41 of the removal unit 40 through the opening 21 of the exhaust pipe 20 and cools the cooling unit 60. ) is collected in the cooling chamber 62.

At the same time, when the screw 31 rotates, foreign substances contacted and attached to both sides of the screw 31 are scraped cleanly by the scraper 42 and removed from the removal body 41 through the opening 21 of the exhaust pipe 20. ) and has the characteristic of cleaning the screw 31 cleanly at the same time.

In addition, due to the bearing 46 installed between the body end 43 and the dividing knife 44, when the screw 31 rotates, the dividing knife 44 can rotate together while contacting the screw 31. It has a feature that does not affect rotation.

At this time, the scraper 42 cleanly removes foreign substances attached to the screw 31, thereby preventing the weight of the screw 31 from increasing due to foreign substances and making the screw 31 smoother.

In this way, foreign matter collected inside the cooling chamber 62 of the removal body 41 and the cooling unit 60 through the opening part 21 by the rotation of the screw 31 or the scraper 42 is waste plastic (1). After the pyrolysis process is completed and the operation of the pyrolysis tank 10 is stopped, when the temperature of the exhaust pipe 20 and the removal unit 40 is lowered to room temperature, a separate cooling device is operated to cool the cooling chamber of the cooling unit 60 ( Refrigerant is supplied to the cooling pipe 63 installed in the cooling chamber 62 to cool and harden the foreign substances collected inside the cooling chamber 62, and then they are removed by opening the outlet 61 at the bottom of the cooling chamber 62.

At this time, the foreign matter cooled by the cooling chamber 62 is easily separated and can be easily handled and disposed of.

In addition, when replacing or maintaining the screw unit 30, the cleaning device 100 stops the operation of the pyrolysis tank 10 and the operation of the drive motor 32 and removes the removal body of the removal unit 40. While removing (41) from the exhaust pipe (20), the scraper (42) is separated from the screw (31) and dismantled.

Thereafter, when the flange bolting of the exhaust pipe 20 and the sealing cover 35 is dismantled and the drive motor 32 is moved, the guide block 36 moves backward along the transfer rail 52 of the rail portion 50. When moved, the sealing cover (35) and the screw (31) connected to the motor shaft (33) are simultaneously separated from the exhaust pipe (20) and placed on the auxiliary rail (53), so that they do not fall and are stably separated from the exhaust pipe (20), allowing for repair and repair. It has the characteristics of reliably performing cleaning and replacement tasks.

In the above description of the cleaning device 100 according to the present invention with reference to the attached drawings, the specific shape and direction have been mainly described. However, the present invention can be modified and changed in various ways by those skilled in the art, and such modifications and changes are consistent with the present invention. It should be interpreted as included in the scope of rights.

1: waste plastic 10: pyrolysis tank
11: Input door 12: Burner
13: mixing motor
20: exhaust pipe 21: opening part
22: discharge pipe
30: screw part
31: screw 32: driving motor
33: motor shaft 34: motor body
35: Sealing cover 36: Guide block
40: removal part 41: removal body
42: scraper 43: body end
44: Splitting knife 45: Gap
50: rail part 51: rail
52: transfer rail 53: auxiliary rail
60: Cooling unit
61: outlet 62: cooling chamber
63: cooling pipe
100: Cleaning device

Claims (7)

In the waste plastic emulsification device,
An exhaust pipe (20) installed on the rear side of the pyrolysis tank (10) for receiving the waste plastic (1) and heating the waste plastic (1) to a high temperature, and exhausting molten gas;
A screw unit (30) installed inside the exhaust pipe (20) and operating in a screw manner to remove deposits or foreign substances on the internal wall,
It is installed on the lower side of the exhaust pipe 20 and is installed to close the opening 21 partially removed from the lower surface of the exhaust pipe 20 in order to remove foreign substances attached to the screw portion 30, and the opening 21 ) and a removal body 41 coupled to close the removal body 41, and a scraper 42 protruding from the top of the removal body 41 to form a removal portion 40;
The removal body 41 has a square cylindrical shape and fixes the body end 43 of the scraper 42 to the inner wall,
The screw 31 is inserted into the gap 45 of the split knife 44 divided into a 'U' shape at the top of the body end 43 and rotates to separate foreign substances attached to the screw 31,
A bearing 46 is installed between the body end 43 and the dividing knife 44 so that when the screw 31 rotates, the dividing knife 44 contacts and rotates. Gas exhaust pipe cleaning device for plastic emulsification equipment.
delete delete delete delete delete The method of claim 1, wherein a cooling part (60) is formed at the lower part of the removal body (41) to cool the separated foreign substances,
A gas exhaust pipe cleaning device for a waste plastic emulsifier, characterized in that an outlet (61) is provided at the lower part of the cooling unit (60) to discharge foreign substances.

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