Chimney protection device
By installing a protective device consisting of steel plate tie rods and tension adjusters around the coke oven chimney, the problem of refractory brick detachment from the chimney was solved, enabling online repair and ensuring continuous production and extending the coke oven's lifespan.
Patent Information
- Application Number
- CN202422996324.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-05
AI Technical Summary
During long-term continuous production, the refractory bricks or concrete of coke oven chimneys may fall off due to corrosion from high-temperature exhaust gases, posing a safety hazard and affecting the continuity of production.
The protective device, consisting of steel plate tie rods and tension adjusters, is welded to form a uniform square grid-like fastening mesh. Combined with a ring hoop structure, it adapts to the thermal expansion and contraction of the chimney, enabling online repair.
It effectively prevents the refractory bricks or concrete on the outer wall of the chimney from falling off, avoids production stoppages for maintenance, extends the continuous production time of the coke oven, and increases coke production.
Smart Images
Figure CN223470515U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of iron and steel industry, concretely relates to a chimney protection device. BACKGROUND
[0002] A coke oven is a core device in the coking industry, used to convert coal into coke through dry distillation, which is crucial for steel production and other industrial fields.
[0003] A coke oven is a core device in the coking industry, used to convert coal into coke through dry distillation, which is crucial for steel production and other industrial fields.
[0004] A coke oven is a core device in the coking industry, used to convert coal into coke through dry distillation, which is crucial for steel production and other industrial fields.
[0005] During the long-term continuous production and operation of the coke oven, high-temperature waste gas is continuously discharged from the chimney, causing the chimney to be affected by thermal expansion and cold contraction for a long time, resulting in corrosion of the chimney, and causing different degrees of detachment and damage of the refractory bricks or concrete in the chimney. If this situation is not handled in a timely manner, it will cause the refractory bricks or concrete inside and outside the chimney to detach, and in severe cases, it will cause the coke oven to stop production. In addition, due to the high height of the chimney, the detached refractory bricks or concrete pose a great safety hazard to pedestrians and vehicles on the ground.
[0006] In view of the above factors, a chimney protection device is provided to effectively prevent the detachment of the refractory bricks or concrete in the coke oven chimney and to solve the production problem of handling the detachment. UTILITY MODEL CONTENTS
[0007] The utility model aims to provide a chimney protection device to solve the problems raised in the background technology.
[0008] The chimney protection device is characterized in that: the steel plate bracing bars are arranged on the periphery of the chimney body, the steel plate bracing bars are parallel to the chimney body and are welded to the chimney body, and the steel plate bracing bars are perpendicular to the chimney body and are welded to the chimney body.
[0009] The steel plate bracing bars are parallel to the chimney body and are welded to the chimney body, and the steel plate bracing bars are perpendicular to the chimney body and are welded to the chimney body.
[0010] The joint portions of each steel plate bracing bar are provided with a tension adjuster, and each steel plate bracing bar is fastened to a proper position through the tension adjuster.
[0011] Further, the steel plate bracing bars comprise longitudinal steel plate bracing bars and annular steel plate bracing bars, and the opening positions of the two ends of the annular steel plate bracing bars are provided with tension adjusters.
[0012] Further, the joint portions of each annular steel plate bracing bar are fixedly provided with a steel wire and a positioning hole, one end of the steel wire is connected with the annular steel plate bracing bar, the other end of the steel wire is connected with the tension adjuster, and the positioning hole on the annular steel plate bracing bar is connected with a hook on the tension adjuster.
[0013] Further, the tension adjuster adopts a tiger head pincette wire tightener, and the tension adjuster is connected with the steel wire arranged at the joint portion of the steel plate bracing bar.
[0014] Further, the longitudinal steel plate bracing bars are arranged at equal intervals, and the longitudinal steel plate bracing bars and the annular steel plate bracing bars are cross-welded to form a uniform square grid-shaped fastening net.
[0015] Further, the periphery of the longitudinal steel plate bracing bar is provided with a plurality of groove structures arranged at intervals, and a connecting steel wire is arranged along the periphery of the chimney body in the groove structure and is fixed.
[0016] The connecting steel wire is located between the square grid-shaped fastening net formed by the cross-welding of the longitudinal steel plate bracing bars and the annular steel plate bracing bars.
[0017] Further, the outer periphery of the chimney body is provided with a ring structure in a detachable manner above the square grid-shaped fastening net, and the ring structure is in contact with the annular steel plate bracing bar at the uppermost end of the chimney body.
[0018] The ring structure is formed by two mutually symmetrical semicircular clamps, and the symmetrical semicircular clamps are fixed by being bound with a steel wire rope.
[0019] The fixing lug plate is provided with a fixing hole, and a traction rope is connected to the fixing lug plate.
[0020] Further, the uppermost end of the ring-shaped steel plate is welded with a protruding edge, and the width of the edge is the same as the thickness of the hoop structure.
[0021] A fastening protection method of a chimney protection device comprises the following steps:
[0022] According to the actual circumference of the coke oven chimney at different heights and the specific position height to be fastened, the steel plate is cut into steel plate strips with the same width and different lengths.
[0023] According to the actual thermal expansion and contraction degree of the coke oven chimney, the steel plate strip is welded in two ways, one is parallel to the outer wall of the chimney, and the other is perpendicular to the chimney. The steel plate strip is evenly welded around the chimney in a ring shape at different heights, and the steel plate strip is welded longitudinally at the position to be fastened, and the steel plate strip is evenly spaced and welded in a ring shape and a longitudinal position perpendicular to each other to form a protective mesh to surround the chimney.
[0024] A slack adjuster is also needed at each joint of the ring-shaped steel plate strip. The steel plate strip is fastened to the appropriate position through the slack adjuster, so that the steel plate strip can be reserved for thermal expansion and contraction of the chimney, and the steel plate strip can be adjusted in the future.
[0025] Compared with the prior art, the utility model has the advantages of:
[0026] The utility model discloses a fastening treatment of the coke oven chimney when the coke oven is in normal production, realizes the online treatment of the coke oven chimney when the coke oven is in normal production, avoids the loss caused by the coke oven chimney in normal production.
[0027] The utility model discloses a fastening treatment of the coke oven chimney when the coke oven is in normal production, realizes the online treatment of the coke oven chimney when the coke oven is in normal production, avoids the loss caused by the coke oven chimney in normal production. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1 is the overall schematic view of the utility model;
[0029] Figure 2 is the utility model Figure 1 is the schematic view of the connection position of the elastic adjuster in the middle;
[0030] Figure 3 is the schematic view of the arrangement of the longitudinal steel plate bracing and the annular steel plate bracing of the utility model;
[0031] Figure 4 is the schematic view of the groove structure on the longitudinal steel plate bracing of the utility model;
[0032] Figure 5 is the schematic view of the hoop structure of the utility model;
[0033] Figure 6 is the schematic view of the positioning hole and the connecting steel wire at the two ends of the annular steel plate bracing of the utility model;
[0034] Figure 7 is the schematic view of the welded protruding edge of the uppermost annular steel plate bracing of the utility model. DETAILED DESCRIPTION
[0035] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0036] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0037] In the description of the utility model, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.
[0038] As Figures 1-6As shown, a chimney protection device, comprising a chimney body 1 and a ladder 2 arranged on the chimney body 1, a deformation platform 3 is arranged on the chimney body 1, a protective rail 4 is arranged along the circumference of the deformation platform 3, and a steel plate brace 5 is arranged on the periphery of the chimney body 1, and the steel plate brace 5 is arranged on the periphery of the chimney body 1;
[0039] The steel plate brace 5 is welded parallel to the chimney body 1, and the steel plate brace 5 is welded perpendicular to the chimney body 1;
[0040] A slack adjuster 6 is reserved for each joint of the steel plate brace 5, and each steel plate brace is fixed to a suitable position through the slack adjuster 6.
[0041] In order to adjust the steel plate brace 5 according to the expansion allowance in the use state, the steel plate brace 5 comprises a longitudinal steel plate brace 51 and a ring-shaped steel plate brace 52, and the slack adjuster 6 is arranged at the opening position of the two ends of the ring-shaped steel plate brace 52.
[0042] In order to facilitate the butt joint and fastening of the two ends of the steel plate brace 5 by the slack adjuster 6 in the use state, a steel wire and a positioning hole are fixedly arranged at the joint of each slack adjuster 6, one end of the steel wire is connected with the slack adjuster 6, the other end of the steel wire is connected with the slack adjuster 6, and the positioning hole on the ring-shaped steel plate brace 52 is connected with the hook on the slack adjuster 6.
[0043] The slack adjuster 6 adopts a tiger head wire tightener, and the slack adjuster 6 connects the steel wire arranged at the joint of the ring-shaped steel plate brace 52.
[0044] In order to facilitate the equal distance between adjacent longitudinal steel plate braces 51 in the use state, the longitudinal steel plate brace 51 and the ring-shaped steel plate brace 52 are cross-welded to form a uniform square grid-shaped fastening net.
[0045] Through the above structure, the effect of the long-term thermal expansion and cold contraction of the coke oven chimney on the normal production caused by the falling of the outer wall of the chimney is effectively controlled and repaired.
[0046] In order to facilitate the reduction of the grid space formed by the steel plate brace in the use state, the periphery of the longitudinal steel plate brace 51 is provided with a plurality of recess structures arranged at intervals, and a connecting steel wire is arranged along the periphery of the chimney body 1 in the recess structure for fixation;
[0047] The connecting steel wire is located between the square grid-shaped fastening net formed by the cross-welding of the longitudinal steel plate brace 51 and the ring-shaped steel plate brace 52.
[0048] In order to facilitate in use state, can through setting ring hoop structure 7 in upper part is fixed, through the traction rope fixed, through the chimney body 1 The outer circumference is located above the square grid-shaped fastening net to detachably set ring hoop structure 7, the ring hoop structure 7 With the contact of the annular steel plate bracing 52 of the uppermost end of the chimney body 1;
[0049] The ring hoop structure 7 is spliced by two mutually symmetrical semicircular clamps, and the symmetrical semicircular clamps are fixed by steel wire rope;
[0050] The fixed lug plate 8 is arranged on the ring hoop structure 7 along the outer circumference, the fixed lug plate 8 is provided with a fixed hole, and the fixed lug plate 8 is connected with the traction rope and fixed to the protective fence 4.
[0051] The uppermost end of the annular steel plate bracing 52 is welded with a protruding edge, the width of the edge is the same as the thickness of the ring hoop structure 7, and an opening gap is left on the edge to facilitate adjustment and deformation with the annular steel plate bracing 52.
[0052] A fastening protection method of chimney protection device, comprising the following steps:
[0053] According to the actual circumference of the coke oven chimney at different height positions and the specific position height to be fastened, the steel plate is cut into steel plate bracings with consistent width and different length;
[0054] According to the actual thermal expansion and contraction expansion degree of the coke oven chimney, the welding mode of the steel plate bracing is determined, one is parallel welding of the steel plate bracing and the chimney outer wall, the other is perpendicular welding of the steel plate bracing and the chimney, the steel plate bracing is uniformly welded in parallel around the chimney at different height positions to form a ring shape, and the steel plate bracing is welded in longitudinal position, and the steel plate bracing is uniformly spaced in parallel ring shape and perpendicular to the longitudinal position at the position to be fastened of the chimney to form a protective net shape to surround the chimney in ring shape;
[0055] A slack adjuster is additionally provided at the joint part of each ring-shaped steel plate bracing, each ring-shaped steel plate bracing is fastened to a suitable position through the slack adjuster, the steel plate bracing can be prevented from falling off, and the thermal expansion and contraction of the chimney can be reserved, so that the chimney can be adjusted in the future.
[0056] The utility model discloses in order to guarantee that the dry quenching furnace whole expansion stress is even after reinforcing, installs fastening steel plate strip and especially needs to pay attention to the distance between each steel plate strip and the steel plate strip, then the steel plate bracing is crossed and welded together according to the height of the reinforcing, forms the even square grid-shaped fastening net to the protection of coke oven chimney outer wall, and the specific interval and height need to be determined according to the actual situation of the chimney expansion, effective control and repair coke oven chimney are affected by thermal expansion and contraction for a long time, and the chimney outer wall falls off to affect normal production.
[0057] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.
[0058] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.
Claims
1. A chimney protection device comprising a chimney body (1) and a ladder (2) arranged on the chimney body (1), a walkway platform (3) is further arranged on the chimney body (1), a protection rail (4) is arranged along the circumference of the walkway platform (3), characterized in that: It also includes a steel plate brace (5) arranged on the periphery of the chimney body (1), and the steel plate brace (5) is arranged on the periphery of the chimney body (1); The steel plate brace (5) is welded parallel to the chimney body (1), and the steel plate brace (5) is welded perpendicular to the chimney body (1); A joint part of each steel plate brace (5) is provided with a tension adjuster (6), and each steel plate brace is fixed to a suitable position through the tension adjuster (6).
2. A chimney guard according to claim 1, characterised in that: The steel plate brace (5) includes longitudinal steel plate braces (51) and annular steel plate braces (52), and the annular steel plate brace (52) is provided with a tension adjuster (6) at the opening position of both ends.
3. A chimney guard according to claim 2, characterised in that: A joint part of each tension adjuster (6) is fixedly provided with a steel wire and a positioning hole, one end of the steel wire is connected with the tension adjuster (6), the other end of the steel wire is connected with the tension adjuster (6), and the positioning hole on the annular steel plate brace (52) is connected with the hook on the tension adjuster (6).
4. A chimney guard according to claim 3, characterised in that: The tension adjuster (6) adopts a tiger head clamp wire tightener, and the tension adjuster (6) connects the steel wire arranged at the joint part of the annular steel plate brace (52).
5. A chimney safeguard according to claim 4, characterised in that: Adjacent longitudinal steel plate braces (51) are spaced at equal distances, and the longitudinal steel plate braces (51) and the annular steel plate braces (52) are cross-welded to form a uniform square grid-shaped fastening net.
6. A chimney safeguard according to claim 5, characterised in that: The periphery of the longitudinal steel plate brace (51) is provided with a plurality of groove structures arranged at intervals, and a connecting steel wire is arranged in the groove structure along the periphery of the chimney body (1) for fixation. The connecting steel wire is located between the square grid-shaped fastening net formed by the cross-welding of the longitudinal steel plate brace (51) and the annular steel plate brace (52).
7. A chimney guard according to claim 6, characterised in that: An annular hoop structure (7) is detachably arranged above the square grid-shaped fastening net on the outer circumference of the chimney body (1), and the annular hoop structure (7) is in contact with the annular steel plate brace (52) at the uppermost end of the chimney body (1); The annular hoop structure (7) is spliced from two mutually symmetrical semicircular clamps, and the symmetrical semicircular clamps are fixed by a steel wire rope; A fixing lug (8) is arranged on the annular hoop structure (7) along the outer circumference, a fixing hole is formed in the fixing lug (8), and a traction rope is connected to the guardrail (4) through the fixing lug (8).
8. A chimney safeguard according to claim 7, characterised in that: The annular steel plate brace (52) at the uppermost end is welded with a protruding edge, and the width of the edge is the same as the thickness of the annular hoop structure (7).