A device of automatic on-line impurity separator for circulating liquid of coking primary cooler

Abstract

The utility model relates to the field of coking chemical industry, put forward a kind of coking primary cooler circulating liquid online impurity automatic separator's device, including primary cooler, the side of primary cooler is equipped with the circulating liquid entrance of the impurity such as rich coke powder, the inside of primary cooler is provided with impurity automatic separation subassembly, the impurity automatic separation subassembly includes the steam or solvent entrance of impurity separation area inclined plate deposition impurity cleaning, the steam or solvent entrance of impurity separation area inclined plate deposition impurity cleaning is equipped in the side of primary cooler, the inner wall of primary cooler is provided with in-vessel primary impurity settlement control panel, the inner wall of primary cooler is provided with in-vessel secondary impurity settlement control panel, the inner wall of primary cooler is provided with in-vessel tertiary impurity settlement control panel, by above technical scheme, the problem that current technology cannot reduce the hidden danger of coke oven gas conveying process blockage, cannot reduce production cost is solved.

Description

Technical Field

[0001] This utility model relates to the field of coking and chemical technology, specifically to a device for an online automatic impurity separator for circulating liquid in a coking primary cooler. Background Technology

[0002] Coking plants use bituminous coal as raw material, heating it at 1000±50℃ under air-isolated conditions for 16-96 hours to produce coke, tar, water, and coke oven gas with a volatile matter content ≤1.8%. However, they also produce insoluble impurities such as coke powder, coal powder, and tar residue. The coking industry is a crucial foundation of the steel industry. Coke provides the necessary reducing agent and structural raw material for blast furnaces, and is vital to the development of the national steel industry. These impurities, circulating with the liquid in the upper and lower sections of the primary cooler, cause a series of problems, including spray pipe blockage, liquid deviation in the primary cooler, coke oven gas deviation, increased resistance, and difficulties in coke oven gas transportation. These issues have a significant negative impact on production, environmental protection, and safety, necessitating urgent process improvements.

[0003] According to a public disclosure of a coking primary cooler (publication number: CN216808699U), the primary cooler includes a primary cooler for cooling coking oven gas. The primary cooler is divided into an upper section and a lower section. The upper section and the lower section are respectively provided with cooling pipes for cooling coking oven gas. The two ends of the cooling pipes are connected and fixed by a tube sheet. The tube sheet has several connection holes for connecting to the ends of the cooling pipes. Multiple annular expansion grooves are provided in the connection holes. The two ends of the cooling pipes are provided with expansion pipe heads that expand to connect with the connection holes.

[0004] The aforementioned methods, through the coordination of components such as cooling pipes and expansion joints, are insufficient to address the potential for blockages in the coke oven gas transportation process and reduce production costs. This results in increased labor intensity for employees and a greater negative impact on the environment, requiring further improvement. Utility Model Content

[0005] This invention proposes a device for an online automatic impurity separator for circulating liquid in a coking primary cooler, which solves the problems in related technologies.

[0006] The technical solution of this utility model is as follows: A device for an online automatic impurity separator for circulating liquid in a coking primary cooler includes a primary cooler. The primary cooler has a circulating liquid inlet rich in impurities such as coke powder on its side. An automatic impurity separation component is installed inside the primary cooler. This component includes a steam or solvent inlet for cleaning impurities deposited on an inclined plate in the impurity separation zone. This inlet is located on the side of the primary cooler. A primary impurity settling control plate, a secondary impurity settling control plate, and a tertiary impurity settling control plate are installed on the inner wall of the primary cooler. The primary cooler has an internal scum discharge outlet on its inner wall, an internal scum baffle on its inner wall, an internal liquid level control plate on its inner wall, a circulating liquid outlet for removing coke powder, coal powder, and tar residue on its side, a steam or solvent inlet for cleaning deposited impurities via an inclined plate in the internal sedimentation and anti-mixing zone on its side, an inclined plate to prevent impurity accumulation on its inner wall, a circulating liquid sedimentation and impurity discharge outlet at its bottom, an internal impurity separation zone inside its interior, an internal sedimentation and anti-mixing zone inside its interior, and an internal impurity anti-mixing plate on its inner wall.

[0007] Optionally, two inclined plates are provided to prevent impurity accumulation. The inclined plates are located below the liquid level control plate and the impurity anti-mixing plate inside the vessel. Providing two inclined plates to prevent impurity accumulation is beneficial to preventing impurity accumulation.

[0008] Optionally, the primary impurity settling control plate is located on the side of the secondary and tertiary impurity settling control plates. The design of the primary impurity settling control plate is beneficial for controlling impurities.

[0009] Optionally, the liquid level control plate inside the vessel is one to five millimeters higher than the lower opening of the scum discharge outlet inside the vessel, and the circulating liquid outlet for removing coke powder, coal powder and tar residue is located above the steam or solvent inlet for cleaning impurities deposited on the inclined plate of the sedimentation and anti-mixing zone inside the vessel. This design is beneficial for discharging impurities.

[0010] Optionally, an anti-clogging component is provided on the side of the primary cooler. The anti-clogging component includes a slanted rod, one end of which is fixedly connected to the outer wall of the primary cooler. A protective frame is fixedly connected to the end of the slanted rod away from the primary cooler. The side of the protective frame is fixedly connected to the outer wall of the primary cooler. A motor is fixedly connected to the inner wall of the protective frame. A half gear is fixedly connected to the output shaft of the motor. A rack is slidably connected to the inner wall of the protective frame. A striking rod is fixedly connected to one end of the rack. The striking rod is used to strike the outlet of the circulating liquid sediment impurities to prevent clogging when removing impurities.

[0011] Optionally, the half gear and the rack mesh with each other, and the outlet for the circulating liquid sedimentation impurities is located on the displacement trajectory of the striking rod. This design is beneficial because when the half gear rotates onto the rack, it can drive the rack to move.

[0012] Optionally, a spring is fixedly connected to the inner wall of the protective frame, and the end of the spring away from the protective frame is fixedly connected to one end of the rack. The design of the spring is conducive to the rack automatically resetting when it is not driven.

[0013] Optionally, a limiting rod is fixedly connected to the side of the rack, and the end of the limiting rod away from the rack is slidably connected to the inner wall of the protective frame. The design of the limiting rod helps to limit the movement trajectory of the rack and prevent deviation of the rack's movement trajectory.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, through the cooperation between components such as the solvent inlet pipe and the secondary impurity settling control plate inside the impurity automatic separation component, the impurities in the circulating liquid of the upper and lower sections of the primary cooler are separated according to the above-mentioned device. The shutdown and cleaning cycle of each primary cooler is increased from three months to more than three years. After purification, the insoluble impurities such as coke powder, coal powder and tar residue in the circulating liquid of the upper and lower sections of the primary cooler are reduced by more than 80%. At the same time, it not only reduces the risk of blockage in the coke oven gas transportation process, reduces production costs, reduces the labor intensity of employees, and solves the negative environmental impact, but also creates huge economic and social benefits for enterprises.

[0016] 2. In this utility model, through the cooperation between the components such as the striking rod, rack, motor, and half gear inside the anti-clogging component, the motor drives the half gear to rotate, which in turn drives the rack to move. The striking rod can periodically strike the outlet of the circulating liquid sediment impurities. This action effectively prevents the outlet from being blocked due to the accumulation of impurities, thereby ensuring the smooth progress of the impurity discharge process. Attached Figure Description

[0017] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0018] Figure 1 This is a three-dimensional appearance structure diagram of the present utility model;

[0019] Figure 2 This is a three-dimensional cross-sectional view of the primary cooler of this utility model.

[0020] Figure 3 This is a three-dimensional bottom view of the diagonal brace of this utility model;

[0021] Figure 4 This is a three-dimensional cross-sectional view of the protective frame of this utility model;

[0022] Figure 5 This utility model Figure 4 A three-dimensional magnified structural diagram of A.

[0023] In the diagram: 1. Primary cooler; 2. Inlet of circulating liquid rich in coke powder and other impurities; 3. Automatic impurity separation component; 31. Steam or solvent inlet for cleaning impurities deposited on inclined plates in the impurity separation zone; 32. Primary impurity settling control plate inside the unit; 33. Secondary impurity settling control plate inside the unit; 34. Tertiary impurity settling control plate inside the unit; 35. Scum discharge outlet inside the unit; 36. Scum baffle inside the unit; 37. Liquid level control plate inside the unit; 38. Circulating liquid for removing coke powder, coal powder, and tar residue. 39. Steam or solvent inlet for cleaning deposited impurities in the inclined plate of the sedimentation and anti-mixing zone inside the vessel; 310. Inclined plate to prevent impurity accumulation; 311. Outlet for sedimentation and impurity discharge of circulating liquid; 312. Impurity separation zone inside the vessel; 313. Sedimentation and anti-mixing zone inside the vessel; 314. Impurity anti-mixing plate inside the vessel; 4. Anti-clogging component; 41. Inclined rod; 42. Protective frame; 43. Motor; 44. Half gear; 45. Rack; 46. Striking rod; 47. Spring; 48. Limiting rod. Detailed Implementation

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0025] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0026] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0028] Example 1

[0029] Reference Figures 1-5 This first embodiment of the present invention proposes a device for an online automatic impurity separator for circulating liquid in a coking primary cooler. The device includes a primary cooler 1, with a circulating liquid inlet 2 rich in impurities such as coke powder on its side. An automatic impurity separation component 3 is installed inside the primary cooler 1. The automatic impurity separation component 3 includes a steam or solvent inlet 31 for cleaning impurities deposited on an inclined plate in the impurity separation zone. The steam or solvent inlet 31 is located on the side of the primary cooler 1. A primary impurity settling control plate 32, a secondary impurity settling control plate 33, and a tertiary impurity settling control plate 34 are installed on the inner wall of the primary cooler 1. The inner wall of the cooler 1 is provided with an internal scum discharge outlet 35, the inner wall of the primary cooler 1 is provided with an internal scum baffle 36, the inner wall of the primary cooler 1 is provided with an internal liquid level control plate 37, the side of the primary cooler 1 is provided with a circulating liquid outlet 38 for removing coke powder, coal powder and tar residue, the side of the primary cooler 1 is provided with a steam or solvent inlet 39 for cleaning sedimentation and anti-mixing zone inclined plate, the inner wall of the primary cooler 1 is provided with an inclined plate 310 to prevent impurity accumulation, the bottom of the primary cooler 1 is provided with a circulating liquid sedimentation and impurity discharge outlet 311, the interior of the primary cooler 1 is provided with an internal impurity separation zone 312, the interior of the primary cooler 1 is provided with an internal sedimentation and anti-mixing zone 313, and the inner wall of the primary cooler 1 is provided with an internal impurity anti-mixing plate 314.

[0030] Two inclined plates 310 are provided to prevent impurity accumulation. The inclined plates 310 are located below the liquid level control plate 37 and the impurity anti-mixing plate 314 in the vessel. The provision of two inclined plates 310 is beneficial to prevent impurity accumulation.

[0031] The primary impurity settling control plate 32 is located on the side of the secondary impurity settling control plate 33 and the tertiary impurity settling control plate 34. The design of the primary impurity settling control plate 32 is beneficial for controlling impurities.

[0032] The lower openings of the liquid level control plate 37 and the scum discharge outlet 35 are one to five millimeters higher. The circulating liquid outlet 38, which removes coke powder, coal powder and tar residue, is located above the steam or solvent inlet 39 for cleaning impurities deposited on the inclined plate of the sedimentation and anti-mixing zone inside the vessel. This design is conducive to the discharge of impurities.

[0033] In this embodiment, after the primary cooler 1's upper or lower circulating liquid comes into direct contact with the coke oven gas, impurities such as coal powder, coke powder, inorganic dust, or tar residue in the coke oven gas are washed into the circulating liquid. These insoluble impurities are suspended or carried by the insoluble liquid and enter the impurity separation area 312 inside the automatic separator device through the circulating liquid inlet 2, which is rich in coke powder and other impurities. The impurity-rich upper and lower circulating liquids of the primary cooler 1 first pass through a multi-layered, three- to five-degree integrated control inclined plate with a directional flow angle of at least three degrees, causing the fluid to flow slightly downwards. This facilitates the gradual downward separation of settling impurities. The impurity-rich upper and lower circulating liquids of the primary cooler 1 then flow downwards into the separator... The circulating liquid flows forward, and its cross-sectional area is more than ten times larger than the inlet pipe diameter. As the impurity-rich circulating liquid flows forward, the amount of impurities deposited at the bottom of the vessel gradually increases. To prevent impurities from accumulating at the bottom of the vessel, an inclined plate 310 with a 15-30 degree angle to the fluid direction is designed at the bottom of the impurity separation zone 312 to prevent impurity accumulation. Calculations show that a circulating liquid sedimentation outlet 311 is set at the middle to lower bottom where the highest concentration of deposited impurities is found. To prevent impurities from remaining and obstructing the flow on the inner surface of the inclined plate 310, this invention designs a steam or solvent inlet 31 for cleaning the deposited impurities in the impurity separation zone. Steam cleaning and organic solvent cleaning can be performed periodically every three to seven days. To further improve impurity separation efficiency, this invention features an internal sedimentation and anti-mixing zone 313. To prevent impurities from accumulating and obstructing flow on the inner surface of the inclined plate 310, a steam or solvent inlet 39 for cleaning impurities deposited in the sedimentation and anti-mixing zone is designed. This inlet can be periodically cleaned with steam and organic solvents every three to ten days. To improve the purification efficiency of surface floating impurities after heavy impurity separation, an internal impurity anti-mixing plate 314 with a reverse flow of three to five degrees is designed during the flow from the sedimentation and anti-mixing zone 313 to the outlet. This ensures that impurities such as coke powder on the upper surface of the circulating liquid in the primary cooler 1 are removed by an internal scum baffle 36. This invention incorporates an internal sedimentation and anti-mixing zone... The liquid level control plate 37 is one to five millimeters higher than the scum discharge outlet 35 in the vessel. Due to the physical property that the density of the scum is lower than that of the primary cooling circulating liquid, the circulating liquid of the primary cooler 1 must pass through the scum baffle 36 in the vessel, and the scum is discharged from the circulation system. The circulating liquid in the upper section or the lower section of the primary cooler 1 must undergo a deceleration, sedimentation, separation and purification process of more than or equal to ten minutes after passing through this online automatic impurity separation device. The circulating liquid in the upper section and the lower section of the primary cooler 1 after the sedimentation separation of heavy impurities and the separation of scum leaves the device through the circulating liquid outlet 38, which removes coke powder, coal powder and tar residue, for recycling. This also indicates that the task of separating impurities in the circulating liquid is completed.

[0034] Example 2

[0035] Reference Figures 1-5 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that an anti-clogging component 4 is provided on the side of the primary cooler 1. The anti-clogging component 4 includes a slanted rod 41. One end of the slanted rod 41 is fixedly connected to the outer wall of the primary cooler 1, and the end of the slanted rod 41 away from the primary cooler 1 is fixedly connected to a protective frame 42. The side of the protective frame 42 is fixedly connected to the outer wall of the primary cooler 1. A motor 43 is fixedly connected to the inner wall of the protective frame 42. A half gear 44 is fixedly connected to the output shaft of the motor 43. A rack 45 is slidably connected to the inner wall of the protective frame 42. A striking rod 46 is fixedly connected to one end of the rack 45. The striking rod 46 is used to strike the outlet 311 of the circulating liquid sediment impurities to prevent clogging when removing impurities.

[0036] The half gear 44 and the rack 45 mesh with each other, and the outlet 311 for the sedimentation of circulating fluid is located on the displacement trajectory of the striking rod 46. This design is beneficial because when the half gear 44 rotates onto the rack 45, it can drive the rack 45 to move.

[0037] A spring 47 is fixedly connected to the inner wall of the protective frame 42. The end of the spring 47 away from the protective frame 42 is fixedly connected to one end of the rack 45. The design of the spring 47 is conducive to the rack 45 automatically resetting when it is not driven.

[0038] A limiting rod 48 is fixedly connected to the side of the rack 45. The end of the limiting rod 48 away from the rack 45 is slidably connected to the inner wall of the protective frame 42. The design of the limiting rod 48 helps to limit the movement trajectory of the rack 45 and prevent the movement trajectory of the rack 45 from deviating.

[0039] Compared to Embodiment 1, further, the motor 43 is started and rotated forward. The forward rotation of the motor 43 drives the half gear 44 to rotate forward. The half gear 44 is provided with some teeth, some of which mesh with the rack 45. When the teeth on the half gear 44 rotate onto the rack 45, they will drive the rack 45 to move. The rack 45 will then drive the striking rod 46 to move closer to the circulating liquid sedimentation and impurity discharge outlet 311. The circulating liquid sedimentation and impurity discharge outlet 311 is located on the movement trajectory of the striking rod 46. When the striking rod 46 moves, it will strike the circulating liquid sedimentation and impurity discharge outlet 311, preventing the circulating liquid from being discharged. If the sediment discharge port 311 becomes blocked during impurity discharge, the motor 43 drives the half gear 44 to rotate, which in turn moves the rack 45. The striking rod 46 periodically taps the sediment discharge port 311, effectively preventing blockage due to impurity accumulation and ensuring smooth impurity discharge. Continuous tapping of the sediment discharge port 311 effectively clears the blockage, reduces sediment accumulation, and ensures timely and effective discharge of impurities, thereby improving the overall efficiency and reliability of the equipment.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for an online automatic impurity separator for circulating liquid in a coking primary cooler, characterized in that, Includes a primary cooler (1), the side of which is provided with a circulating liquid inlet (2) rich in coke powder impurities, and the interior of the primary cooler (1) is provided with an automatic impurity separation component (3). The automatic impurity separation component (3) includes a steam or solvent inlet (31) for cleaning impurities deposited on an inclined plate in the impurity separation area. The steam or solvent inlet (31) for cleaning impurities deposited on an inclined plate in the impurity separation area is located on the side of the primary cooler (1). A primary impurity settling control plate (32) is provided on the inner wall of the primary cooler (1). A secondary impurity settling control plate (33) is provided on the inner wall of the primary cooler (1). A tertiary impurity settling control plate (34) is provided on the inner wall of the primary cooler (1). An internal scum discharge outlet (35) is provided on the inner wall of the primary cooler (1). An internal scum baffle (36) is provided on the inner wall of the primary cooler (1). The wall is provided with an internal liquid level control plate (37), the side of the primary cooler (1) is provided with a circulating liquid outlet (38) for removing coke powder, coal powder and tar residue, the side of the primary cooler (1) is provided with a steam or solvent inlet (39) for cleaning impurities deposited by the inclined plate of the internal sedimentation anti-mixing zone, the inner wall of the primary cooler (1) is provided with an inclined plate (310) to prevent impurity accumulation, the bottom of the primary cooler (1) is provided with a circulating liquid sedimentation impurity discharge outlet (311), the interior of the primary cooler (1) is provided with an internal impurity separation zone (312), the interior of the primary cooler (1) is provided with an internal sedimentation anti-mixing zone (313), and the inner wall of the primary cooler (1) is provided with an internal impurity anti-mixing plate (314).

2. The device for an online automatic impurity separator for circulating liquid in a coking primary cooler according to claim 1, characterized in that, Two inclined plates (310) are provided to prevent impurity accumulation. The inclined plates (310) are located below the liquid level control plate (37) and the impurity anti-mixing plate (314) in the vessel.

3. The device for an online automatic impurity separator for circulating liquid in a coking primary cooler according to claim 2, characterized in that, The primary impurity settling control plate (32) is located on the side of the secondary impurity settling control plate (33) and the tertiary impurity settling control plate (34).

4. The device for an online automatic impurity separator for circulating liquid in a coking primary cooler according to claim 3, characterized in that, The liquid level control plate (37) inside the vessel is one to five millimeters higher than the lower opening of the scum discharge outlet (35) inside the vessel. The circulating liquid outlet (38) for removing coke powder, coal powder and tar residue is located above the steam or solvent inlet (39) for cleaning impurities deposited on the inclined plate of the sedimentation and anti-mixing zone inside the vessel.

5. The device for an online automatic impurity separator for circulating liquid in a coking primary cooler according to claim 4, characterized in that, The side of the primary cooler (1) is provided with an anti-clogging component (4). The anti-clogging component (4) includes a slant rod (41). One end of the slant rod (41) is fixedly connected to the outer wall of the primary cooler (1). The end of the slant rod (41) away from the primary cooler (1) is fixedly connected to a protective frame (42). The side of the protective frame (42) is fixedly connected to the outer wall of the primary cooler (1). A motor (43) is fixedly connected to the inner wall of the protective frame (42). A half gear (44) is fixedly connected to the output shaft of the motor (43). A rack (45) is slidably connected to the inner wall of the protective frame (42). A knocking rod (46) is fixedly connected to one end of the rack (45).

6. The device for an online automatic impurity separator for circulating liquid in a coking primary cooler according to claim 5, characterized in that, The half gear (44) and the rack (45) mesh with each other, and the circulating liquid sedimentation impurity discharge port (311) is located on the displacement trajectory of the striking rod (46).

7. The device for an online automatic impurity separator for circulating liquid in a coking primary cooler according to claim 6, characterized in that, A spring (47) is fixedly connected to the inner wall of the protective frame (42), and the end of the spring (47) away from the protective frame (42) is fixedly connected to one end of the rack (45).

8. The apparatus for an online automatic impurity separator for circulating liquid in a coking primary cooler according to claim 7, characterized in that, A limiting rod (48) is fixedly connected to the side of the rack (45), and the end of the limiting rod (48) away from the rack (45) is slidably connected to the inner wall of the protective frame (42).

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