Coke extraction cover
By adding a lifting cover with top and bottom limiters to the lifting device, the problems of repeated cleaning and poor flowability of active coke are solved, achieving a more efficient cleaning effect and equipment protection.
Patent Information
- Application Number
- CN202520024087.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-07
AI Technical Summary
The straight-up-down structure of existing coke lifters causes the cleaned activated coke to easily fall at the coke discharge tube inlet, resulting in repeated cleaning and poor flowability.
Design a coke lifting cover that includes top and bottom limiters. The limiters are fitted onto the outer wall of the coke discharge tube to prevent activated coke from falling off, and the conical cover increases the flowability of activated coke.
This avoids the need for repeated cleaning of activated coke after initial cleaning, improves cleaning efficiency, enhances the fluidity of activated coke, and reduces equipment wear.
Smart Images
Figure CN223861380U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of focus lifting technology, and more specifically, to a focus lifting cover. Background Technology
[0002] The coke lifter is typically installed in the adsorption tank or tower of the activated coke adsorption process to lift the activated coke to the discharge outlet. Because water and activated coke have different densities, they will form stratification in the adsorption tank (tower), with water on top and activated coke at the bottom. To improve the cleaning efficiency of the activated coke, the usual practice is to wash the coke first, then perform coke-water separation, discharge the wastewater after washing, and recover the cleaned activated coke at the same time. To enable the coke lifter to perform both coke washing and coke-water separation, the applicant designed a coke lifter that integrates these two functions. In this device, the coke lifter washes the activated coke, which then re-enters the adsorption tank (tower). However, because the coke lifter has a vertical structure, the washed activated coke, after separating from the wastewater, falls into the adsorption tank (tower) and, under gravity, falls vertically to the inlet of the coke discharge pipe. Due to the large size of the coke lifter, it cannot be moved, so the washed activated coke ends up near the inlet. This results in significant limitations in cleaning the activated coke; the already washed activated coke is repeatedly washed, while the surrounding activated coke, due to its poor fluidity, is difficult to clean. Therefore, how to prevent the washed activated coke from being repeatedly washed is the technical problem that this invention aims to solve. Utility Model Content
[0003] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.
[0004] To at least partially solve the above problems, this utility model provides a coke lifting cover, comprising: two limiters and a cover body; both the two limiters and the cover body are sleeved on the outer wall of the coke discharge tube of the coke lifting device, the two limiters are a top limiter and a bottom limiter, the top limiter is located at the top of the cover body, the bottom limiter is located at the bottom of the cover body, and the liquid inlet of the coke discharge tube is located below the bottom limiter.
[0005] Preferably, the limiter consists of a limiting half-ring and a retaining ring. The bottom of the limiting half-ring of the top limiter abuts against the top of the cover, and the top of the limiting half-ring of the bottom limiter abuts against the bottom of the cover. The limiting half-ring and the retaining ring are connected by screws.
[0006] Preferably, the inner diameter of the limiting semi-ring is adapted to the outer diameter of the coke discharge pipe, and it consists of an upper abutment ring, a lower abutment ring, and at least three connecting plates. The top limiter abuts against the top of the cover through the lower abutment ring, and the bottom limiter abuts against the bottom of the cover through the upper abutment ring. The upper abutment ring and the lower abutment ring are arranged in parallel and connected to each other through connecting plates. The two opposite ends of the upper abutment ring and the lower abutment ring are connected through connecting plates, and the two ends of the retaining ring are connected to the two connecting plates by screws.
[0007] Preferably, the retaining ring is Ω-shaped and consists of an arc-shaped retaining plate with an inner diameter adapted to the outer diameter of the coke discharge pipe, and mounting plates disposed at both ends of the arc-shaped retaining plate. When the inner arc surface of the limiting semi-ring and the inner arc surface of the arc-shaped retaining plate are opposite each other and both abut against the outer wall of the coke discharge pipe, a gap is left between the mounting plate and the connecting plate, and the opposite mounting plate and connecting plate are connected by screws.
[0008] Preferably, the cover is a conical structure with openings at both the top and bottom. The inner diameter of the top opening of the cover is adapted to the outer diameter of the exhaust pipe, and the inner diameter of the top opening is smaller than the inner diameter of the bottom opening. The lower abutting ring of the top limiter abuts against the top of the cover.
[0009] Preferably, the bottom of the cover is provided with an abutment plate, the abutment plate is circular, the diameter of the abutment plate is not less than the inner diameter of the bottom opening of the cover, the bottom of the cover is connected to the top of the abutment plate, the center of the abutment plate is provided with an installation hole with a diameter adapted to the outer diameter of the coke discharge pipe, the abutment plate is sleeved on the outer wall of the coke discharge pipe through the installation hole, and the upper abutment ring of the bottom limiter abuts against the bottom of the abutment plate.
[0010] Preferably, the diameter of the abutment plate is larger than the inner diameter of the bottom opening of the cover, and the outer wall of the cover is provided with a number of stiffeners, one end of which is located at the top opening of the cover, and the other end extends to the bottom opening of the cover and is connected to the top surface of the abutment plate.
[0011] Preferably, the abutment plate is provided with a plurality of through holes, which are located within the bottom opening range of the cover.
[0012] Compared with the prior art, the present invention has at least the following beneficial effects:
[0013] The top and bottom limiters axially position the shroud, preventing displacement between the shroud and the coke discharge pipe inlet when the coke lifter is inserted into or removed from the adsorption tank (tower). The coke lifter equipped with this shroud prevents cleaned activated coke from falling into the coke discharge pipe inlet during cleaning, thus avoiding the need for repeated cleaning of already cleaned activated coke.
[0014] The focus lifting cover described in this utility model, other advantages, objectives and features of this utility model will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this utility model. Attached Figure Description
[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the structure of the coke lifting cover on the coke discharge tube according to this utility model.
[0017] Figure 2 for Figure 1 The main view.
[0018] Figure 3 for Figure 2 A sectional view.
[0019] Figure 4 for Figure 1 A cross-sectional structural diagram (coke exhaust pipe not shown).
[0020] In the diagram: 1. Cover body, 2. Row of coke tubes, 3. Top limiter, 4. Bottom limiter, 5. Limiting half ring, 6. Clamping ring, 7. Upper abutment ring, 8. Lower abutment ring, 9. Connecting plate, 10. Arc-shaped clamping plate, 11. Mounting plate, 12. Abutment plate, 13. Rib plate, 14. Through hole. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.
[0022] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.
[0023] like Figures 1-4As shown, this utility model provides a coke lifting hood, comprising: two limiters and a hood body 1; both the two limiters and the hood body 1 are sleeved on the outer wall of the coke discharge pipe 2 of the coke lifting device. The two limiters are a top limiter 3 and a bottom limiter 4, respectively. The top limiter 3 is located at the top of the hood body 1, and the bottom limiter 4 is located at the bottom of the hood body 1. The liquid inlet of the coke discharge pipe 2 is located below the bottom limiter 4, thereby axially limiting the position of the hood body 1 and preventing displacement between the hood body 1 and the liquid inlet of the coke discharge pipe 2 when the coke lifting device is inserted into or removed from the adsorption tank (tower). The coke lifting device equipped with this coke lifting hood can prevent the cleaned activated coke from falling into the liquid inlet of the coke discharge pipe 2 during the cleaning of activated coke, thereby avoiding the need for repeated cleaning of the already cleaned activated coke.
[0024] The limiter consists of a limiting half-ring 5 and a retaining ring 6. The bottom of the limiting half-ring 5 of the top limiter 3 abuts against the top of the cover 1, and the top of the limiting half-ring 5 of the bottom limiter 4 abuts against the bottom of the cover 1. The limiting half-ring 5 and the retaining ring 6 are connected by screws. The inner diameter of the limiting semi-ring 5 is adapted to the outer diameter of the coke discharge pipe 2, and it consists of an upper abutment ring 7, a lower abutment ring 8, and at least three connecting plates 9. The top limiter 3 abuts against the top of the cover 1 through the lower abutment ring 8, and the bottom limiter 4 abuts against the bottom of the cover 1 through the upper abutment ring 7. The upper abutment ring 7 and the lower abutment ring 8 are arranged in parallel and connected by connecting plates 9. Usually, there are three connecting plates 9. The two opposite ends of the upper abutment ring 7 and the lower abutment ring 8 are connected by connecting plates 9, which not only support the two abutment rings at both ends, but also connect to the retaining ring 6. Another connecting plate 9 is located between the upper abutment ring 7 and the lower abutment ring 8 to support the two abutment rings. The two ends of the retaining ring 6 are connected to the two connecting plates 9 by screws. The retaining ring 6 is Ω-shaped and consists of an arc-shaped retaining plate 10 with an inner diameter adapted to the outer diameter of the coke discharge pipe 2, and mounting plates 11 set at both ends of the arc-shaped retaining plate 10. When the inner arc surface of the limiting half ring 5 and the inner arc surface of the arc-shaped retaining plate 10 are opposite each other and both abut against the outer wall of the coke discharge pipe 2, there is a gap between the mounting plate 11 and the connecting plate 9. The opposing mounting plate 11 and the connecting plate 9 are connected by screws, so that the clamping force between the retaining ring 6 and the limiting half ring 5 can be adjusted by the tightness of the screws.
[0025] The cover 1 is a conical structure with openings at both the top and bottom. The conical structure effectively pushes the vertically falling activated carbon to all sides, thereby causing the activated carbon at the bottom of the adsorption tank (tower) to flow horizontally. Since the cover 1 is located above the liquid inlet, it can generate vortices in the activated carbon below the cover 1, thereby increasing the fluidity of the activated carbon at the bottom of the adsorption tank (tower). The inner diameter of the top opening of the cover 1 is adapted to the outer diameter of the coke discharge pipe 2, and the inner diameter of the top opening is smaller than the inner diameter of the bottom opening. The lower abutting ring 8 of the top limiter 3 abuts against the top of the cover 1. Because the cover 1 is a conical structure, the bottom limiter 4 can abut against the inner wall of the cover 1, thereby supporting the cover 1. The bottom of the cover 1 is provided with an abutment plate 12. The abutment plate 12 is circular and its diameter is not less than the inner diameter of the bottom opening of the cover 1. The bottom of the cover 1 is connected to the top of the abutment plate 12. The center of the abutment plate 12 is provided with an installation hole with a diameter adapted to the outer diameter of the coke discharge pipe 2. The abutment plate 12 is sleeved on the outer wall of the coke discharge pipe 2 through the installation hole. The upper abutment ring 7 of the bottom limiter 4 abuts against the bottom of the abutment plate 12. By providing the abutment plate 12, the bottom limiter 4 can conveniently limit the position of the cover 1 and facilitate the disassembly and assembly of the bottom limiter 4. The diameter of the abutment plate 12 is larger than the inner diameter of the bottom opening of the cover 1. Because the activated coke has a high density and the adsorption tank (tower) is deep, to prevent the conical cover 1 from being crushed, several stiffeners 13 are provided on the outer wall of the cover 1. One end of the stiffener 13 is located at the top opening of the cover 1, and the other end extends to the bottom opening of the cover 1 and connects with the top surface of the abutment plate 12. Several through holes 14 are provided on the abutment plate 12. The through holes 14 are located within the bottom opening range of the cover 1, thereby significantly reducing the overall weight of the present invention. At the same time, the through holes 14 also make the interior and exterior of the cover 1 integrated, avoiding the situation where the interior of the cover 1 is sealed by the abutment plate 12 and filled with air. If the cover 1 is sealed by the abutment plate 12, the internal air will generate upward buoyancy. Since the length of the coke discharge pipe 2 is relatively long, it is easy for the coke discharge pipe 2 to bend and be damaged due to the buoyancy of the sealed cover 1 and the force of the flowing activated coke on the cover 1 for a long time.
[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0028] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.
Claims
1. A focus-lifting cover, characterized in that, include: Two limiters and a cover (1); both limiters and the cover (1) are fitted on the outer wall of the coke discharge pipe (2) of the coke lifter. The two limiters are a top limiter (3) and a bottom limiter (4). The top limiter (3) is set at the top of the cover (1), and the bottom limiter (4) is set at the bottom of the cover (1). The liquid inlet of the coke discharge pipe (2) is located below the bottom limiter (4). The limiter consists of a limiting half ring (5) and a retaining ring (6). The bottom of the limiting half ring (5) of the top limiter (3) abuts against the top of the cover (1), and the top of the limiting half ring (5) of the bottom limiter (4) abuts against the bottom of the cover (1). The limiting half ring (5) and the retaining ring (6) are connected by screws. The inner diameter of the limiting half ring (5) is adapted to the outer diameter of the coke discharge pipe (2), and it is composed of an upper abutment ring (7), a lower abutment ring (8) and at least three connecting plates (9). The top limiter (3) abuts against the top of the cover (1) through the lower abutment ring (8), and the bottom limiter (4) abuts against the bottom of the cover (1) through the upper abutment ring (7). The upper abutment ring (7) and the lower abutment ring (8) are arranged in parallel and connected to each other through the connecting plate (9). The two ends of the upper abutment ring (7) and the lower abutment ring (8) are connected through the connecting plate (9). The two ends of the retaining ring (6) are connected to the two connecting plates (9) by screws. The retaining ring (6) is Ω-shaped and consists of an arc-shaped retaining plate (10) with an inner diameter adapted to the outer diameter of the coke discharge pipe (2) and mounting plates (11) set at both ends of the arc-shaped retaining plate (10). When the inner arc surface of the limiting half ring (5) and the inner arc surface of the arc-shaped retaining plate (10) are opposite each other and both abut against the outer wall of the coke discharge pipe (2), there is a gap between the mounting plate (11) and the connecting plate (9). The opposite mounting plate (11) and the connecting plate (9) are connected by screws.
2. The focus lifting cover according to claim 1, characterized in that, The cover (1) is a conical structure with openings at both the top and bottom. The inner diameter of the top opening of the cover (1) is adapted to the outer diameter of the coke discharge pipe (2), and the inner diameter of the top opening is smaller than the inner diameter of the bottom opening. The lower abutting ring (8) of the top limiter (3) abuts against the top of the cover (1).
3. The focus lifting cover according to claim 2, characterized in that, The bottom of the cover (1) is provided with an abutment plate (12). The abutment plate (12) is circular and its diameter is not less than the inner diameter of the bottom opening of the cover (1). The bottom of the cover (1) is connected to the top of the abutment plate (12). The center of the abutment plate (12) is provided with an installation hole with a diameter that is adapted to the outer diameter of the coke discharge pipe (2). The abutment plate (12) is sleeved on the outer wall of the coke discharge pipe (2) through the installation hole. The upper abutment ring (7) of the bottom limiter (4) abuts against the bottom of the abutment plate (12).
4. The focus lifting cover according to claim 3, characterized in that, The diameter of the abutment plate (12) is larger than the inner diameter of the bottom opening of the cover (1). The outer side wall of the cover (1) is provided with several stiffeners (13). One end of the stiffener (13) is located at the top opening of the cover (1), and the other end extends to the bottom opening of the cover (1) and is connected to the top surface of the abutment plate (12).
5. The focus lifting cover according to claim 3, characterized in that, The abutment plate (12) is provided with a plurality of through holes (14), which are located within the bottom opening range of the cover (1).