Screw device for discharging char

The screw device for discharging char addresses the issues of high-temperature fires and clogging by using automatic motor output control and cooling mechanisms, ensuring safe and efficient operation during char discharge and internal inspection.

WO2025121482A1PCT designated stage expired Publication Date: 2025-06-12REVO TECH CO LTD
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Patent Information

Application Number
PCT/KR2023/020044
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-06
Publication Date
2025-06-12

AI Technical Summary

Technical Problem

Existing screw devices for discharging char in waste pyrolysis processes face issues such as fires due to high temperatures and clogging during compression, which pose safety risks during internal inspection and maintenance.

Method used

A screw device with automatic motor output control, which measures temperature and current values to adjust motor output, prevents fires by cooling high-temperature char with cooling water, and ensures safe internal inspection by introducing cooled char to block gas leakage.

Benefits of technology

The solution effectively prevents fires and clogging, enables safe internal inspection by blocking gas leakage, and reduces maintenance risks through cooling and automatic control mechanisms.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a screw device for discharging char, which can: automatically control the output of a motor rotating a screw for transferring, compressing, and discharging the char to prevent a fire due to a high temperature and a clogging phenomenon due to compression; block gas leakage by introducing a cooled state char when the internal inspection is necessary, thereby enabling safe internal inspection work; and cool the high-temperature char through cooling water, thereby preventing a fire.
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Description

Screw device for discharging tea

[0001] The present invention relates to a screw device for discharging char, and more specifically, to a screw device for discharging char, which automatically controls the output of a motor that rotates a screw for transporting, compressing, and discharging char, thereby preventing fire caused by high temperature and clogging caused by compression, and which allows safe internal inspection work by blocking gas leakage by introducing cooled char when internal inspection is necessary, and which also prevents fire by cooling high-temperature char through cooling water.

[0002] Synthetic resin products like tires, vinyl, and plastics, widely used in various industries and daily life, are only recycled to a small extent after use. Most are classified as waste and are landfilled or incinerated. This synthetic resin waste is considerably larger in volume relative to its weight, making landfill costs higher than general waste. Furthermore, it does not decompose even after landfilling, making it a significant social nuisance.

[0003] Recently, research and development are actively underway on methods and devices for pyrolyzing synthetic resin waste to obtain useful oils, as a way to recycle such synthetic resin waste without incinerating or landfilling it.

[0004] Meanwhile, in the case of waste pyrolysis devices, char, a byproduct, is generated during the pyrolysis process, and in the past, there were problems such as fires caused by high temperatures or clogging during compression.

[0005] In addition, when a problem occurred in the screw device that transports and compresses the tea and required internal inspection, there was a problem that threatened safety, such as a fire, during inspection and replacement work because vapor was continuously generated while the high-temperature tea was filled inside the screw.

[0006] The present invention is intended to solve the above-mentioned problems, and to provide a screw device for discharging char, which automatically controls the output of a motor that rotates a screw for transporting, compressing, and discharging char, thereby preventing fire caused by high temperature and clogging caused by compression, and which allows safe internal inspection work by introducing cooled char when internal inspection is required, thereby blocking gas leakage, and also preventing fire by cooling high-temperature char through cooling water.

[0007] A screw device for discharging tea according to one embodiment of the present invention may include a housing (110) having a hollow portion formed along a longitudinal direction, a screw (120) that rotates within the housing (110) to transport tea discharged from a PS screw outlet, a motor (130) that rotates the screw (120), and an output control unit (140) that automatically controls the output of a motor connected to the PS screw or the motor (130) based on the results of measuring the PS screw outlet temperature and the current value of the motor (130), respectively.

[0008] In one embodiment, the output control unit (140) measures the PS screw outlet temperature and the current value of the motor (130), respectively, and when the PS screw outlet temperature exceeds a preset temperature value, the output of the motor connected to the PS screw is reduced, and when the current value exceeds a preset current value, the output of the motor (130) is reduced.

[0009] In one embodiment, the output control unit (140) may control the output value of the motor (130) based on a smaller output value among the output value of the motor connected to the PS screw or the output value of the motor (130).

[0010] In one embodiment, the housing (110) may be provided as a combined structure that is separable into upper and lower parts along the longitudinal direction.

[0011] In one embodiment, a compression section is provided in an area adjacent to the discharge port among the areas of the housing (110) in which the car transported by the screw (120) is compressed, and a cover covering the compression section may be provided in a combined structure that can be separated into upper and lower parts.

[0012] In one embodiment, the present invention may further include a tea charging hopper (150) provided at the center of the housing (110) and supplying tea into the inside of the housing (110).

[0013] In one embodiment, an opening / closing valve (151) may be provided on the inside of the tea charging hopper (150) to allow tea in a cooled state stored in the tea charging hopper (150) to flow into the inside of the housing (110) through an opening / closing operation.

[0014] In one embodiment, when an internal inspection signal is applied to the housing (110), the opening / closing valve (151) opens, allowing the cooled car to flow into the housing (110), and the motor (130) rotates in the reverse direction so that the cooled car that has already been introduced is transported toward the PS screw outlet, thereby blocking the PS screw outlet.

[0015] In one embodiment, the present invention further includes a cooling unit (160) that covers the outside of the housing (110) along the longitudinal direction of the housing (110), and the heated car inside the housing (110) can be cooled through cooling water flowing into the cooling unit (160).

[0016] In one embodiment, the cooling unit (160) may be formed to have a structure that can be separated into multiple regions.

[0017] According to the present invention, the output of a motor that rotates a screw for transporting, compressing, and discharging char is automatically controlled, thereby having the advantage of preventing fire caused by high temperature and clogging caused by compression.

[0018] In addition, according to the present invention, when an internal inspection is required, a cooled vehicle is introduced to block gas leakage, thereby enabling safe internal inspection work, and also has the advantage of preventing fire by cooling a high-temperature vehicle through coolant.

[0019] FIG. 1 is a drawing showing the configuration of a screw device (100) for discharging a car according to one embodiment of the present invention.

[0020] Figure 2 is a drawing showing the housing (110) in more detail.

[0021] Figure 3 is a drawing showing the compression section in more detail.

[0022] <Explanation of symbols>

[0023] 100: Screw device for discharging tea

[0024] 110: Housing

[0025] 120: Screw

[0026] 130: Motor

[0027] 140: Output control unit

[0028] 150: Car charging hopper

[0029] 151: Shut-off valve

[0030] 160: Cooling section

[0031] 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. The present invention may be implemented in various different forms and is not limited to the embodiments described herein.

[0032] In order to clearly explain the present invention, parts that are not related to the description are omitted, and the same reference numerals are used for identical or similar components throughout the specification.

[0033] In addition, in various embodiments, components having the same configuration are described only in representative embodiments using the same symbols, and in other embodiments, only configurations different from the representative embodiments are described.

[0034] Throughout the specification, when a part is said to be "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with other elements intervening. Furthermore, when a part is said to "include" a component, this may mean that the other component is included, rather than excluded, unless otherwise specifically stated.

[0035]

[0036] FIG. 1 is a drawing showing the configuration of a screw device (100) for discharging a car according to one embodiment of the present invention.

[0037] Referring to FIG. 1, a tea discharge screw device (100) according to one embodiment of the present invention can be largely configured to include a housing (110), a screw (120), a motor (130), an output control unit (140), a tea charging hopper (150), and a cooling unit (160).

[0038] The housing (110) is connected to the lower portion of the PS screw outlet and refers to a pipe having a hollow portion formed along the length direction. Inside the housing (110), a screw (120) rotates through the rotational force of a motor (130), thereby transporting the high-temperature car transported through the PS screw outlet toward the discharge port.

[0039] Meanwhile, the housing (110) can be formed into a combined structure that can be separated into upper and lower parts along the length direction. This will be specifically examined as follows.

[0040] Figure 2 is a drawing showing the housing (110) in more detail.

[0041] Referring to Fig. 2, the housing (110) is provided so as to be divided into an upper housing and a lower housing in half, and a square nugget is provided on the outer diameter of the shaft. In this state where the upper and lower housings are connected to each other, a screw (120) is inserted inside, and the upper and lower housings are fixed to each other through a bolt and nut combination. When the blade wears out during the rotation of the screw (120), the upper housing can be easily separated from the lower housing, which can have the advantage of easy maintenance. In addition, this can have the advantage of preventing fires that occur during welding and reduced operation due to overall cooling.

[0042]

[0043] The screw (120) rotates within the housing (110) by the rotational force of the motor (130) provided on one side, and uses blades provided along the outer diameter to transport the high-temperature tea toward the exhaust port. Here, the motor (130) may be a magnetic motor.

[0044] At this time, the output control unit (140) can be connected to the temperature sensor provided in the PS screw and the motor (130). The output control unit (140) receives the result of measuring the PS screw outlet temperature from the temperature sensor and receives the current value from the motor (130). Based on this, the output control unit (140) reduces the output of the motor connected to the PS screw if the outlet temperature of the PS screw exceeds a preset temperature value, and reduces the output of the motor (130) if the current value of the motor (130) exceeds a preset current value.

[0045] In addition, the output control unit (140) can control the output value of the motor (130) based on a smaller output value among the output value of the motor connected to the PS screw or the output value of the motor (130). This can prevent fire caused by high temperature and blockage caused by secondary compression.

[0046] Meanwhile, in one embodiment, a compression unit for compressing the vehicle transported by the screw (120) is provided in the area of ​​the housing (110) adjacent to the discharge port. At this time, the cover covering the compression unit may be provided in a combined structure that can be separated into upper and lower parts, similar to the housing (110). This will be described as follows.

[0047] Figure 3 is a drawing showing the compression section in more detail.

[0048] As shown in Figure 3, the cover covering the compression section is a jointed structure that can be separated vertically, significantly increasing work efficiency during internal inspections. Furthermore, since the cover is not welded, the risk of fire is significantly reduced, and operational degradation due to overall cooling is prevented.

[0049] Returning to FIG. 1 again, the tea charging hopper (150) is arranged to face upward from the center of the housing (110) and serves to additionally supply tea into the inside of the housing (110).

[0050] Here, the tea charging hopper (150) may include an opening / closing valve (151) that allows tea in a cooled state to flow into the housing (110) when internal inspection of the screw (120) is required during operation.

[0051] The opening / closing valve (151) is provided on the lower side inside the tea charging hopper (150) and initially maintains a closed state, but when an internal inspection signal for the housing (110) is applied, it automatically opens (OPEN) to allow tea in a cooled state to flow into the housing (110).

[0052] In this case, the cooled car is introduced into the housing (110) and filled between the blades of the screw (120), and in this state, the motor (130) rotates in the reverse direction, so that the cooled car is transported toward the PS screw outlet and blocks the outlet of the PS screw. Accordingly, gas leakage within the housing (110) is blocked, thereby maximizing the efficiency of internal inspection work.

[0053] A cooling unit (160) is provided along the longitudinal direction on the outside of the housing (110) to cool the heated car inside the housing (110) through cooling water flowing into the inside. By supplying cooling water during the operation of the screw (120), the high-temperature car transported inside the housing (110) can be cooled, and the occurrence of fire can be prevented. In addition, the heated cooling water can be discharged again as process water and recycled.

[0054] Meanwhile, since the cooling unit (160) is designed to have an assembly structure that can be separated into multiple areas, internal inspection and maintenance for each area can be easily performed.

[0055]

[0056] Although the present invention has been described above with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various modifications and changes may be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below.

[0057] According to the present invention, the output of a motor that rotates a screw for transporting, compressing, and discharging char can be automatically controlled to prevent fire caused by high temperature and clogging caused by compression, and the present invention is a technology that can be widely used in the pyrolysis industry to realize its practical and economic value.

Claims

1. A housing (110) having a hollow portion formed along the longitudinal direction; A screw (120) that rotates within the housing (110) to transport char discharged from the PS screw outlet; A motor (130) that rotates the above screw (120); and A screw device for discharging a car, characterized by including an output control unit (140) that controls the output of a motor connected to the PS screw or the motor (130) based on the results of measuring the PS screw outlet temperature and the current value of the motor (130), respectively.

2. In paragraph 1, The above output control unit (140) is A screw device for exhausting a car, characterized in that the PS screw outlet temperature and the current value of the motor (130) are respectively measured, and when the PS screw outlet temperature exceeds a preset temperature value, the output of the motor connected to the PS screw is reduced, and when the current value exceeds a preset current value, the output of the motor (130) is reduced.

3. In paragraph 2, The above output control unit (140) is A screw device for exhausting a car, characterized in that the output value of the motor (130) is adjusted based on a smaller output value among the output value of the motor connected to the PS screw or the output value of the motor (130).

4. In paragraph 1, A screw device for discharging a car, characterized in that the housing (110) is provided as a combined structure that can be separated into upper and lower sides along the longitudinal direction.

5. In paragraph 1, In the area of ​​the above housing (110) adjacent to the discharge port, a compression section is provided where the car transported by the screw (120) is compressed. A screw device for discharging a car, characterized in that the cover covering the compression section is provided as a combined structure that can be separated into upper and lower parts.

6. In paragraph 1, A screw device for discharging tea, characterized in that it further includes a tea charging hopper (150) provided at the center of the housing (110) and supplying tea into the inside of the housing (110).

7. In paragraph 6, Inside the above car charging hopper (150), A screw device for discharging tea, characterized in that it comprises an opening / closing valve (151) that allows tea in a cooled state stored in the tea charging hopper (150) to flow into the inside of the housing (110) through an opening / closing operation.

8. In paragraph 7, When an internal inspection signal is applied to the above housing (110), When the above opening / closing valve (151) is opened, the cooled car flows into the housing (110), and also A screw device for discharging tea, characterized in that the motor (130) rotates in the reverse direction so that the introduced cooled tea is transported toward the PS screw outlet, thereby blocking the PS screw outlet.

9. In paragraph 1, It further includes a cooling unit (160) covering the outside of the housing (110) along the longitudinal direction of the housing (110); A screw device for discharging tea, characterized in that the heated tea inside the housing (110) is cooled by cooling water flowing into the inside of the cooling unit (160).

10. In paragraph 9, The above cooling unit (160) is A screw device for discharging a car, characterized by having a structure capable of being separated into multiple areas.

Citation Information

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