A slag removal device

Abstract

The present invention discloses a slag removal device, which relates to the technical field of tar residue processing. The slag removal device includes a separator and a filter assembly. The separator includes a shell and a separation cylinder arranged in the shell. The shell is a hollow cylinder. The top of the separation cylinder is fixedly connected to the top surface of the shell. The bottom end of the separation cylinder is spaced apart from the bottom surface of the shell. The top surface of the shell is provided with a liquid outlet pipe, and the liquid outlet pipe extends into the separation cylinder. The bottom surface of the shell is provided with a slag discharge port. The side wall of the shell is provided with a liquid inlet pipe. The liquid entering the liquid inlet pipe can flow circumferentially along the inner wall of the shell. The filter assembly includes a first filter element, which is arranged in the separation cylinder and has a through hole. The slag removal device can separate tar residue without stopping the machine for cleaning, thereby improving the continuity of production and reducing the consumption of manpower and material resources.

Description

Technical Field

[0001] The present invention relates to the technical field of tar residue treatment, in particular to a slag removal device. Background Art

[0002] Tar residue is a byproduct of the coking process and is considered hazardous waste. It is crucial to ensure its harmless treatment, reduce its disposal costs, and maximize its residual value. Research and practice have shown that using coal tar residue as an additive in coking production significantly improves coke quality and allows for its recycling.

[0003] During the coking process, tar residue is typically discharged mixed with ammonia. Tar residue, primarily a mixture of coal dust and tar, is quite viscous. If only filters were used to separate the tar residue, the residue would accumulate and clog the filter, necessitating manual removal and cleaning of the filter after the machine has been shut down. This not only takes a long time and impacts production, but also consumes manpower and material resources.

[0004] In view of the above problems, it is necessary to develop a slag removal device to solve the problem of needing to stop the machine to clean the filter screen when separating the tar residue. Summary of the Invention

[0005] The purpose of the present invention is to provide a slag removal device that can separate tar residue without stopping the machine for cleaning, thereby improving production continuity and reducing the consumption of manpower and material resources.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A slag removal device, comprising:

[0008] A separator comprising a shell and a separation cylinder disposed within the shell, wherein the shell is a hollow cylinder, the top end of the separation cylinder is fixedly connected to the top surface of the shell, the bottom end of the separation cylinder is spaced apart from the bottom surface of the shell, a liquid outlet pipe is provided on the top surface of the shell, and the liquid outlet pipe extends into the separation cylinder, a slag discharge port is provided on the bottom surface of the shell, and a liquid inlet pipe is provided on the side wall of the shell, and liquid entering the liquid inlet pipe can flow circumferentially along the inner wall of the shell;

[0009] The filter assembly includes a first filter element, which is arranged in the separation cylinder and has a through hole.

[0010] In some embodiments, the input direction of the liquid inlet pipe is tangent to the inner wall of the shell.

[0011] In some embodiments, the first filter element is inclined downward from the edge toward the inside.

[0012] In some embodiments, the filter assembly further includes a second filter element, which is disposed in the separation cylinder and located above the first filter element.

[0013] In some embodiments, the second filter element is spaced apart from the inner wall of the separation cylinder.

[0014] In some embodiments, the second filter element is inclined downward from the edge toward the inside.

[0015] In some embodiments, the slag removal device also includes a straightening box, which is fixedly arranged on the outer wall of the shell. The straightening box is provided with multiple connecting ports spaced apart in the vertical direction. The multiple connecting ports are connected to the shell, and the liquid inlet pipe is connected to the shell through the straightening box.

[0016] In some embodiments, the slag removal device further includes a slag storage tank, which is fixedly disposed below the shell, and the slag discharge port is connected to the slag storage tank.

[0017] In some embodiments, the slag removal device further includes a flushing assembly, which is in communication with the slag storage tank and is configured to flush the slag storage tank.

[0018] In some embodiments, the slag removal device further includes a clarification tank, which is connected to the slag storage tank.

[0019] Beneficial effects of the present invention:

[0020] The present invention provides a slag removal device. In this slag removal device, a liquid inlet pipe of a separator is used to input a mixed liquid of ammonia water and tar residue. The mixed liquid can flow circumferentially along the inner wall of a shell, causing the liquid in the shell to form a vortex. Under the centrifugal effect, the larger particles of tar residue are thrown to the inner wall of the shell due to their large mass, and then descend to the slag discharge port under the action of gravity.

[0021] Smaller particles of tar residue and other impurities enter the separation drum along with the mixed liquid. The slower liquid flow rate within the drum facilitates the sedimentation of these smaller particles. The first filter element filters out any remaining small particles of tar residue and other impurities, further separating them. If a certain amount of residue accumulates in the first filter element, the through-holes ensure fluid flow without requiring downtime for cleaning.

[0022] The slag removal device can separate the tar residue without stopping the machine for cleaning, thereby improving the continuity of production and reducing the consumption of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a structural schematic diagram of the slag removal device provided by the present invention;

[0024] Figure 2 is a top view of the separator provided by the present invention;

[0025] Figure 3 It is a structural schematic diagram of the separation cylinder and filter assembly provided by the present invention.

[0026] In the picture:

[0027] 1. Separator; 2. Filter assembly; 3. Rectifier box; 4. Slag storage tank; 5. Flushing assembly; 6. Clarifying tank; 7. Self-priming pump; 8. Purge assembly; 9. Underground tank;

[0028] 11. Shell; 12. Separation cylinder; 13. Liquid outlet; 14. Slag discharge port; 15. Liquid inlet; 21. First filter element; 22. Second filter element; 23. Rib plate; 31. Communication port;

[0029] 211. Through hole. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions.

[0032] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they may refer to fixed or removable connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0033] Unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0035] Example 1

[0036] This embodiment provides a slag removal device, such as Figure 1 and Figure 2 As shown, the slag removal device includes a separator 1, which includes a shell 11 and a separation cylinder 12 arranged in the shell 11. The shell 11 is a hollow cylinder. The top of the separation cylinder 12 is fixedly connected to the top surface of the shell 11, and the bottom end of the separation cylinder 12 is spaced apart from the bottom surface of the shell 11. A liquid outlet pipe 13 is provided on the top surface of the shell 11, and the liquid outlet pipe 13 extends into the separation cylinder 12. A slag discharge port 14 is provided on the bottom surface of the shell 11, and a liquid inlet pipe 15 is provided on the side wall of the shell 11. The liquid entering the liquid inlet pipe 15 can flow circumferentially along the inner wall of the shell 11.

[0037] In this deslagging device, the liquid inlet pipe 15 of the separator 1 is used to input a mixed liquid of ammonia water and tar residue. The mixed liquid can flow along the circumferential direction of the inner wall of the shell 11, forming a vortex in the liquid inside the shell 11. Under the centrifugal force, the larger tar residue particles are thrown to the inner wall of the shell 11 due to their large mass. Under the action of gravity, they fall to the slag discharge port 14 for discharge. The smaller tar residue particles or other impurities enter the separation drum 12 along with the mixed liquid. Since the liquid flow rate in the separation drum 12 is relatively slow, it is conducive to the precipitation of the smaller tar residue particles or other impurities.

[0038] The slag removal device can separate the tar residue without stopping the machine for cleaning, thereby improving production continuity and reducing the consumption of manpower and material resources.

[0039] like Figure 1 and Figure 3 As shown, the slag removal device further includes a filter assembly 2 , which includes a first filter element 21 . The first filter element 21 is disposed in the separation cylinder 12 , and a through hole 211 is formed in the first filter element 21 .

[0040] The first filter element 21 can filter a small amount of unprecipitated tar residue or other impurities to further separate them. If a certain amount of residue accumulates on the first filter element 21, the through hole 211 can ensure the passage of liquid without stopping the machine for cleaning.

[0041] Preferably, the first filter element 21 is tilted downward from the edge inward. The first filter element 21 has an inverted cone shape, so that the first filter element 21 can guide the liquid in the housing 11 to a certain extent. Liquid with a faster flow rate can easily flow along the first filter element 21 to the outside of the separation cylinder 12, thereby reducing the flow rate of the liquid flowing into the separation cylinder 12 and improving the filtering effect of the first filter element 21.

[0042] Preferably, the filter assembly 2 further includes a second filter element 22, which is disposed in the separation cylinder 12 and above the first filter element 21. The second filter element 22 can further filter unsettled particles, smaller tar residues, or other impurities in the separation cylinder 12, thereby improving the separation effect.

[0043] Specifically, the second filter element 22 is spaced apart from the inner wall of the separation drum 12. If a certain amount of debris accumulates in the second filter element 22, the gap between the second filter element 22 and the inner wall of the separation drum 12 is sufficient to allow liquid to pass through without requiring shutdown for cleaning. The second filter element 22 is secured to the inner wall of the separation drum 12 by ribs 23 to ensure its stability.

[0044] It can be understood that the through hole 211 of the first filter element 21 and the gap between the second filter element 22 and the inner wall of the separation cylinder 12 are relatively small to ensure that the first filter element 21 and the second filter element 22 have a sufficiently large filtering area. When a certain degree of residue accumulation occurs in the first filter element 21 or the second filter element 22, the liquid mainly passes through the through hole 211 of the first filter element 21 or the gap between the second filter element 22 and the inner wall of the separation cylinder 12 to prevent the liquid from being unable to flow out through the liquid outlet pipe 13 and causing an accident.

[0045] The second filter element 22 is tilted downward from the edge inward. The second filter element 22 is in an inverted cone shape. When both the first filter element 21 and the second filter element 22 become clogged to a certain extent, the liquid needs to pass through the through-hole 211 and the gap between the second filter element 22 and the inner wall of the separation cylinder 12. This lengthens the liquid flow path and improves the tortuosity of the flow path, which facilitates the precipitation of smaller particles of tar residue or other impurities, thereby improving the filtration effect.

[0046] The interval between the first filter element 21 and the second filter element 22 is 3 to 15 cm. In this embodiment, the interval between the first filter element 21 and the second filter element 22 can be 3 cm, 5 cm, 7 cm, 9 cm, 11 cm, 13 cm, and 15 cm.

[0047] In this embodiment, to improve the separation of tar residue, the input direction of the liquid inlet pipe 15 is tangential to the inner wall of the housing 11. When the mixed liquid enters the housing 11 through the liquid inlet pipe 15, the flow direction of the mixed liquid is tangential to the inner wall of the housing 11. In other words, the interior of the housing 11 does not form an obstruction to the mixed liquid, ensuring that the flow velocity of the mixed liquid is not reduced, thereby improving the effect of the centrifugal action.

[0048] like Figure 1 As shown, the slag removal device also includes a self-priming pump 7 and an underground tank 9. The underground tank 9 contains a mixed liquid of ammonia water and tar residue, and the mixed liquid also includes other impurities with smaller particles. The self-priming pump 7 is connected to the liquid outlet pipe 13, and the liquid inlet pipe 15 extends into the underground tank 9. When the self-priming pump 7 is started, the slag removal device can suck up the mixed liquid from the underground tank 9 and complete the separation of tar residue and ammonia water.

[0049] Furthermore, the deslagging device further includes a purge assembly 8, which is disposed at the liquid outlet pipe 13. Gas from the purge assembly 8 can enter the housing 11 through the liquid outlet pipe 13. The purge assembly 8 is used to regularly purge the separator 1 to melt away tar residue attached to the inner wall of the separator 1.

[0050] Specifically, the purge assembly 8 includes a steam generator and a purge pipe. The two ends of the purge pipe are connected to the steam generator and the liquid outlet pipe 13, respectively. The steam generator is used to generate high-temperature steam. When the separator 1 needs to be purged, the liquid in the separator 1 needs to be discharged, and the high-temperature steam is allowed to enter the separator 1 through the purge pipe and the liquid outlet pipe 13. To prevent steam from entering the self-priming pump 7, a valve is installed between the purge pipe and the self-priming pump 7.

[0051] In order to prevent steam from entering the underground tank 9 during the purging process, a one-way valve is provided on the liquid inlet pipe 15 , which only allows the mixed liquid to flow from the underground tank 9 to the separator 1 .

[0052] like Figure 1 As shown, the slag removal device also includes a slag storage tank 4, which is fixedly disposed below the housing 11. A slag discharge port 14 is connected to the slag storage tank 4. Tar residue settled by centrifugal force and gravity can enter the slag storage tank 4 through the slag discharge port 14, preventing excessive accumulation of tar residue within the housing 11, which would be difficult to remove. To facilitate the entry of tar residue within the housing 11 into the slag storage tank 4, the bottom surface of the housing 11 is tilted downward from the right outside to the inside, and the slag discharge port 14 is located at the lowest point of the bottom surface of the housing 11.

[0053] In this embodiment, the slag removal device further includes a flushing assembly 5, which is connected to the slag storage tank 4 and is configured to flush the slag storage tank 4. The slag storage tank 4 contains highly viscous tar residue, and the flushing assembly 5 can flush the tar residue out of the slag storage tank 4 to prevent excessive tar residue from clogging the slag discharge port 14, thereby ensuring the continuous operation of the slag removal device. The flushing assembly 5 includes a flushing pump that drives hot ammonia water to flush the slag storage tank 4. The temperature of the hot ammonia water is 60°C to 80°C, and can be selected from 60°C, 65°C, 70°C, 75°C, and 80°C.

[0054] Furthermore, the slag removal device also includes a clarifier 6, which is connected to the slag storage tank 4. The flushing component 5 can flush the tar residue in the slag storage tank 4 into the clarifier 6. A scraper conveyor is provided at the bottom of the clarifier 6. After the tar residue and ammonia water enter the clarifier 6, the tar residue will settle onto the scraper conveyor under the action of gravity and leave the clarifier 6 under the conveyor. It is used as an additive to join the coking production with coal, realizing the recycling of the tar residue. The ammonia water in the upper layer of the clarifier 6 can also be recovered and continue to flow back to the flushing component 5 to flush the slag storage tank 4, or continue to participate in other processes.

[0055] Example 2

[0056] This embodiment is based on the first embodiment, with the addition of a rectifier box 3 .

[0057] like Figure 1 As shown, the slag removal device also includes a rectifier box 3, which is fixedly mounted on the outer wall of the housing 11. The rectifier box 3 is provided with a plurality of communication ports 31 spaced apart in the vertical direction. The plurality of communication ports 31 are in communication with the housing 11, and the liquid inlet pipe 15 is in communication with the housing 11 through the rectifier box 3. After the mixed liquid enters the rectifier box 3 through the liquid inlet pipe 15, it enters the housing 11 through the plurality of communication ports 31, thereby greatly increasing the range in which the mixed liquid disturbs the liquid in the housing 11, increasing the flow rate of the liquid in the housing 11, and thus improving the centrifugal separation effect.

[0058] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A slag removal device, characterized in that: include: A separator (1) comprises a shell (11) and a separation cylinder (12) arranged in the shell (11), wherein the shell (11) is a hollow cylinder, the top end of the separation cylinder (12) is fixedly connected to the top surface of the shell (11), the bottom end of the separation cylinder (12) is spaced apart from the bottom surface of the shell (11), the top surface of the shell (11) is provided with a liquid outlet pipe (13), and the liquid outlet pipe (13) extends into the separation cylinder (12), the bottom surface of the shell (11) is provided with a slag discharge port (14), and the side wall of the shell (11) is provided with a liquid inlet pipe (15), and the liquid entering the liquid inlet pipe (15) can flow along the circumferential direction of the inner wall of the shell (11); A filter assembly (2) comprises a first filter element (21) and a second filter element (22), wherein the first filter element (21) and the second filter element (22) are both arranged in the separation cylinder (12), and the second filter element (22) is located above the first filter element (21), the first filter element (21) is inclined downward in an inward direction from the edge, a through hole (211) is provided at the bottom of the first filter element (21), and the second filter element (22) is spaced apart from the inner wall of the separation cylinder (12), and when the first filter element (21) and / or the second filter element (22) are blocked, part of the liquid can pass through the through hole (211) and the gap between the second filter element (22) and the separation cylinder (12).

2. The slag removal device according to claim 1, characterized in that: The input direction of the liquid inlet pipe (15) is tangent to the inner wall of the shell (11).

3. The slag removal device according to claim 1, characterized in that: The second filter element (22) is inclined downward in an inward direction from the edge.

4. The slag removal device according to any one of claims 1 to 3, characterized in that: The slag removal device further comprises a straightening box (3), the straightening box (3) being fixedly arranged on the outer wall of the shell (11), the straightening box (3) being provided with a plurality of communication openings (31) spaced apart in a vertical direction, the plurality of communication openings (31) being in communication with the shell (11), and the liquid inlet pipe (15) being in communication with the shell (11) through the straightening box (3).

5. The slag removal device according to any one of claims 1 to 3, characterized in that: The slag removal device further comprises a slag storage tank (4), the slag storage tank (4) being fixedly arranged below the shell (11), and the slag discharge port (14) being in communication with the slag storage tank (4).

6. The slag removal device according to claim 5, characterized in that: The slag removal device further comprises a flushing assembly (5), the flushing assembly (5) being in communication with the slag storage tank (4), and the flushing assembly (5) being configured to flush the slag storage tank (4).

7. The slag removal device according to claim 6, characterized in that: The slag removal device further comprises a clarification tank (6), and the clarification tank (6) is connected to the slag storage tank (4).

Images