Chimney protection device and fastening protection method

Abstract

The invention discloses a chimney protection device and a fastening protection method.The chimney protection device comprises a chimney body and a crawling ladder arranged on the chimney body, the chimney body is further provided with a walking platform, a protective handrail is arranged along the circumference of the walking platform, and the chimney protection device further comprises steel plate braces arranged on the periphery of the chimney body; the multiple steel plate braces are arranged on the periphery of the chimney body, the steel plate braces and the chimney body are welded in parallel, the steel plate braces and the chimney body are perpendicularly welded, and allowance is reserved at the joint position of each steel plate brace for installing the tightness adjuster. Each steel plate brace is fastened to a proper position through the tightness regulators, the steel plate braces comprise a longitudinal steel plate brace and an annular steel plate brace, and the tightness regulators are arranged at the opening positions of the two ends of the annular steel plate brace.

Description

Technical Field

[0001] The invention belongs to the field of steel industry, and specifically relates to a chimney protection device and a fastening protection method. Background Art

[0002] Coke ovens are core equipment in the coking industry, used to convert coal into coke through dry distillation. This process is crucial for steel production and other industrial fields.

[0003] Coke ovens are usually made of refractory bricks and refractory blocks, used to oxidize coal to produce coke. Coke is made from coal. It is the main thermal equipment for coking. Modern coke ovens refer to horizontal chamber coke ovens that are mainly used to produce metallurgical coke and can recover coking chemical products. They are composed of furnace bodies and auxiliary equipment. The coke oven body consists of the furnace roof, combustion chamber and carbonization chamber, chute area, heat storage chamber, etc., which are connected by flues and chimneys. The entire coke oven is built on a concrete foundation. The basic structure of modern coke ovens is roughly the same, but due to different coal loading methods, heating methods and fuels used, they can be divided into many types.

[0004] The coke oven chimney is one of the landmark buildings of the coking plant. Its main function is to generate suction to inhale air and gas from the basement for combustion, and to discharge the exhaust gas from the combustion smoothly from the furnace. The working principle of the coke oven chimney depends on the suction generated at the root of the chimney. This suction overcomes the resistance of the heating system and allows the exhaust gas in the furnace to be discharged.

[0005] During the long-term continuous production and operation of the coke oven chimney, high-temperature exhaust gas is continuously discharged from the chimney for a long time, which makes the chimney affected by thermal expansion and contraction for a long time, causing corrosion to the chimney and resulting in different degrees of falling off and damage of the chimney refractory bricks or concrete. If this situation is not handled in time, it will cause the falling off of the refractory bricks or concrete inside and outside the chimney. In severe cases, it will cause the coke oven to stop production. At the same time, due to the high height of the chimney, the falling refractory bricks or concrete pose a great safety hazard to people and vehicles passing by on the ground.

[0006] In view of the above factors, a chimney protection device and a fastening protection method are provided, which can effectively prevent the refractory bricks or concrete of the coke oven chimney from falling off in advance and the production problems of handling them after they fall off. Summary of the invention

[0007] The object of the present invention is to provide a chimney protection device and a fastening protection method to solve the problems raised in the above background technology.

[0008] The objective of the present invention is achieved through the following technical solutions: a chimney protection device, comprising a chimney body and a ladder arranged on the chimney body, the chimney body is also provided with a walking platform, a protective railing is arranged along the circumference of the walking platform, and also comprises a steel plate brace arranged on the periphery of the chimney body, wherein a plurality of the steel plate braces are arranged on the periphery of the chimney body;

[0009] The steel plate tie rod is welded parallel to the chimney body, and the steel plate tie rod is welded vertically to the chimney body;

[0010] A margin is reserved at the joint of each steel plate tie rod to install a tension adjuster, and each steel plate tie rod is fastened to a suitable position through the tension adjuster.

[0011] Furthermore, the steel plate pull rods include longitudinal steel plate pull rods and annular steel plate pull rods, and tension adjusters are arranged at the opening positions at both ends of the annular steel plate pull rods.

[0012] Furthermore, a steel wire and a positioning opening are fixedly provided at the joint portion of each of the annular steel plate pull rods, one end of the steel wire is connected to the annular steel plate pull rod, and the other end is connected to the tension adjuster, and the positioning opening on the annular steel plate pull rod is connected to the hook on the tension adjuster.

[0013] Furthermore, the tension adjuster adopts a vise tensioner, and the tension adjuster connects the steel wires arranged at the joints of the steel plate tie rods.

[0014] Furthermore, adjacent longitudinal steel plate strips are spaced at equal distances from each other, and the longitudinal steel plate strips and the annular steel plate strips are cross-welded to form a uniform square grid-shaped fastening net.

[0015] Furthermore, a plurality of groove structures are arranged at intervals on the periphery of the longitudinal steel plate brace, and connecting steel wires are arranged in the groove structures along the periphery of the chimney body for fixing;

[0016] The connecting steel wire is located between the square grid-shaped fastening net formed by cross-welding of the longitudinal steel plate pull bars and the annular steel plate pull bars.

[0017] Furthermore, a hoop structure is detachably provided on the outer circumference of the chimney body above the square grid-shaped fastening net, and the hoop structure is in contact with the annular steel plate brace at the uppermost end of the chimney body;

[0018] The hoop structure is formed by splicing two mutually symmetrical semicircular clamps, and the symmetrical semicircular clamps are bound and fixed by steel wire ropes;

[0019] The hoop structure is provided with a fixing ear plate along the outer circumference, the fixing ear plate is provided with a fixing hole, and the fixing ear plate is connected in series with a traction rope and fixed to the guardrail.

[0020] Furthermore, the annular steel plate pull rod at the uppermost end is welded with a protruding edge, and the width of the edge is the same as the thickness of the hoop structure.

[0021] A method for fastening and protecting a chimney protection device comprises the following steps:

[0022] According to the actual perimeter of the coke oven chimney at different heights on site and the specific height of the position to be fastened, the steel plate is cut into steel plate strips with the same width and different lengths;

[0023] The welding method of the steel plate tie rods is determined according to the actual thermal expansion and contraction degree of the coke oven chimney. One method is to weld the steel plate tie rods parallel to the chimney outer wall, and the other method is to weld the steel plate tie rods vertically to the chimney. At different heights of the chimney, the steel plate tie rods are evenly welded 360 degrees around the chimney in parallel to form a ring, and then the steel plate tie rods are welded to the longitudinal position of the chimney. At the position where the chimney needs to be tightened, steel plates are used to weld the rings evenly and vertically to the longitudinal position to form a protective mesh to surround the chimney in a ring shape;

[0024] It is also necessary to reserve a margin at the joint of each annular steel plate tie rod to install a tension adjuster, and tighten each annular steel plate tie rod to a suitable position through the tension adjuster to ensure that the steel plate tie rod does not fall off and reserve a margin for thermal expansion and contraction of the chimney to facilitate future adjustment.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention is to perform fastening treatment on local refractory bricks or concrete that fall off when the chimney is corroded by high-temperature exhaust gas for a long time during normal production of the coke oven, thereby realizing online treatment of the refractory bricks or concrete that fall off on the outer wall of the coke oven chimney without stopping the coke oven, thereby avoiding the loss caused by production delay due to shutdown and maintenance of the outer wall of the coke oven chimney falling off.

[0027] The present invention is a device for treating the falling off of the refractory bricks or concrete on the outer wall of the chimney after the coke oven is put into production. The method of tightening and repairing the refractory bricks or concrete on the outer wall of the chimney when the coke oven is in normal production without stopping production is implemented to repair the falling off of the outer wall of the coke oven chimney, breaking the traditional mode of temporary repair of the falling off of the outer wall of the coke oven chimney with poor effect and stopping production for a long time for maintenance when necessary, and achieving success with good use effect. It not only solves the technical problem of the falling off of the outer wall of the coke oven chimney, but also effectively prolongs the service life of the coke oven chimney, thereby prolonging the continuous production and operation time of the coke oven, and increasing the coke output. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1It is an overall schematic diagram of the present invention;

[0029] Figure 2 The present invention Figure 1 Schematic diagram of the connection position of the middle tension adjuster;

[0030] Figure 3 It is a schematic diagram of the arrangement of the longitudinal steel plate braces and the annular steel plate braces of the present invention;

[0031] Figure 4 This is a schematic diagram of the groove structure on the longitudinal steel plate brace of the present invention;

[0032] Figure 5 It is a schematic diagram of the hoop structure of the present invention;

[0033] Figure 6 It is a schematic diagram of the positioning holes at both ends of the annular steel plate tie rod and the connecting steel wires of the present invention;

[0034] Figure 7 It is a schematic diagram of the protruding edge of the welding of the uppermost annular steel plate pull rod of the present invention. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] like Figure 1-6As shown, a chimney protection device comprises a chimney body 1 and a ladder 2 arranged on the chimney body 1, the chimney body 1 is also provided with a walking platform 3, a protective railing 4 is arranged along the circumference of the walking platform 3, and also comprises a steel plate tie bar 5 arranged on the periphery of the chimney body 1, and a plurality of the steel plate tie bars 5 are arranged on the periphery of the chimney body 1;

[0039] The steel plate tie rod 5 is welded parallel to the chimney body 1, and the steel plate tie rod 5 is welded vertically to the chimney body 1;

[0040] A margin is reserved at the joint of each of the steel plate tie bars 5 for installing a tension adjuster 6 , and each of the steel plate tie bars is fixed to a suitable position through the tension adjuster 6 .

[0041] In order to be able to adjust the steel plate tie bar 5 according to the margin of thermal expansion in use, the steel plate tie bar 5 includes a longitudinal steel plate tie bar 51 and an annular steel plate tie bar 52 , and tension adjusters 6 are provided at the opening positions at both ends of the annular steel plate tie bar 52 .

[0042] For the convenience of use, the tension adjuster 6 connects and tightens the two ends of the steel plate pull strip 5. A steel wire and a positioning opening are fixedly provided at the joint of each tension adjuster 6. One end of the steel wire is connected to the tension adjuster 6, and the other end is connected to the tension adjuster 6. The positioning opening on the annular steel plate pull strip 52 is connected to the hook on the tension adjuster 6.

[0043] The tension adjuster 6 is a vise tensioner, and the tension adjuster 6 connects the steel wires arranged at the joints of the annular steel plate tie rod 52 .

[0044] For the convenience of use, the adjacent longitudinal steel plate strips 51 are spaced at equal distances from each other, and the longitudinal steel plate strips 51 and the annular steel plate strips 52 are cross-welded to form a uniform square grid-shaped fastening net.

[0045] The above-mentioned structural setting can effectively control and repair the coke oven chimney which is affected by thermal expansion and contraction for a long time, causing the chimney outer wall to fall off and affecting normal production.

[0046] In order to reduce the grid space formed by the steel plate strips in use and improve the degree of fastening, the periphery of the longitudinal steel plate strips 51 is provided with a plurality of groove structures arranged at intervals, and connecting steel wires are arranged in the groove structures along the periphery of the chimney body 1 for fixing;

[0047] The connecting steel wire is located between the square grid-shaped fastening net formed by cross-welding of the longitudinal steel plate tie bars 51 and the annular steel plate tie bars 52 .

[0048] In order to facilitate the use, the chimney body 1 can be fixed at the top by setting a hoop structure 7, fixed by a traction rope, and the chimney body 1 is located above the square grid-shaped fastening net through the outer circumference thereof. The hoop structure 7 is detachably provided, and the hoop structure 7 is in contact with the annular steel plate pull strip 52 at the uppermost end of the chimney body 1;

[0049] The hoop structure 7 is formed by splicing two mutually symmetrical semicircular clamps, and the symmetrical semicircular clamps are bound and fixed by steel wire ropes;

[0050] The hoop structure 7 is provided with a fixing ear plate 8 along the outer circumference, the fixing ear plate 8 is provided with a fixing hole, and the fixing ear plate 8 is connected in series with a traction rope and fixed to the guardrail 4 .

[0051] The annular steel plate tie rod 52 at the uppermost end is welded with a protruding edge, the width of which is the same as the thickness of the hoop structure 7 , and an open gap is left on the edge to facilitate adjustment and deformation along with the annular steel plate tie rod 52 .

[0052] A method for fastening and protecting a chimney protection device comprises the following steps:

[0053] According to the actual perimeter of the coke oven chimney at different heights on site and the specific height of the position to be fastened, the steel plate is cut into steel plate strips with the same width and different lengths;

[0054] The welding method of the steel plate tie rods is determined according to the actual thermal expansion and contraction degree of the coke oven chimney. One method is to weld the steel plate tie rods parallel to the chimney outer wall, and the other method is to weld the steel plate tie rods vertically to the chimney. At different heights of the chimney, the steel plate tie rods are evenly welded 360 degrees around the chimney in parallel to form a ring, and then the steel plate tie rods are welded to the longitudinal position of the chimney. At the position where the chimney needs to be tightened, steel plates are used to weld the rings evenly and vertically to the longitudinal position to form a protective mesh to surround the chimney in a ring shape;

[0055] It is also necessary to reserve a margin at the joint of each annular steel plate tie rod to install a tension adjuster, and tighten each annular steel plate tie rod to a suitable position through the tension adjuster to ensure that the steel plate tie rod does not fall off and reserve a margin for thermal expansion and contraction of the chimney to facilitate future adjustment.

[0056] In order to ensure that the reinforced dry quenching furnace is uniformly expanded as a whole, the present invention pays special attention to the equal spacing between each steel strip when installing the fastening steel strips, and then the steel strips are cross-welded with the circumferential strips according to the height to be reinforced as required, so as to form a uniform square grid-shaped fastening net to protect the outer wall of the coke oven chimney. The specific spacing and height need to be determined according to the actual expansion situation of the chimney, so as to effectively control and repair the coke oven chimney that is affected by thermal expansion and contraction for a long time, causing the outer wall of the chimney to fall off and affect normal production.

[0057] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A chimney protection device, comprising a chimney body (1) and a ladder (2) arranged on the chimney body (1), wherein the chimney body (1) is further provided with a walking platform (3), and a guardrail (4) is arranged along the circumference of the walking platform (3), characterized in that: It also includes a steel plate tie bar (5) arranged on the periphery of the chimney body (1), wherein a plurality of the steel plate tie bars (5) are arranged on the periphery of the chimney body (1); The steel plate tie rod (5) is welded in parallel to the chimney body (1), and the steel plate tie rod (5) is welded in perpendicular to the chimney body (1); A margin is reserved at the joint of each steel plate tie rod (5) for installing a tension adjuster (6), and each steel plate tie rod is fixed to a suitable position through the tension adjuster (6).

2. The chimney protection device according to claim 1, characterized in that: The steel plate pull strip (5) comprises a longitudinal steel plate pull strip (51) and an annular steel plate pull strip (52), and tension adjusters (6) are arranged at the opening positions at both ends of the annular steel plate pull strip (52).

3. The chimney protection device according to claim 2, characterized in that: A steel wire and a positioning opening are fixedly provided at the joint portion of each tension adjuster (6); one end of the steel wire is connected to the tension adjuster (6), and the other end is connected to the tension adjuster (6); the positioning opening on the annular steel plate pull rod (52) is connected to a hook on the tension adjuster (6).

4. The chimney protection device according to claim 3, characterized in that: The tension adjuster (6) is a vise tensioner, and the tension adjuster (6) connects the steel wires arranged at the joints of the annular steel plate tie rod (52).

5. The chimney protection device according to claim 4, characterized in that: Adjacent longitudinal steel plate strips (51) are spaced at equal distances from each other, and the longitudinal steel plate strips (51) and the annular steel plate strips (52) are cross-welded to form a uniform square grid-shaped fastening net.

6. The chimney protection device according to claim 5, characterized in that: The periphery of the longitudinal steel plate tie bar (51) is provided with a plurality of groove structures arranged at intervals, and connecting steel wires are arranged in the groove structures along the periphery of the chimney body (1) for fixing; The connecting steel wire is located between the square grid-shaped fastening net formed by cross-welding of the longitudinal steel plate pull bars (51) and the annular steel plate pull bars (52).

7. The chimney protection device according to claim 6, characterized in that: The outer circumference of the chimney body (1) is located above the square grid-shaped fastening net and is provided with a hoop structure (7) in a detachable manner, and the hoop structure (7) is in contact with the annular steel plate brace (52) at the uppermost end of the chimney body (1); The hoop structure (7) is formed by splicing two mutually symmetrical semicircular clamps, and the symmetrical semicircular clamps are bound and fixed by steel wire ropes; A fixing ear plate (8) is arranged along the outer circumference of the hoop structure (7), a fixing hole is opened on the fixing ear plate (8), and a traction rope is connected in series to the fixing ear plate (8) and fixed to the guardrail (4).

8. The chimney protection device according to claim 7, characterized in that: The annular steel plate pull bar (52) at the uppermost end is welded with a protruding edge, the width of which is the same as the thickness of the hoop structure (7).

9. A method for fastening and protecting a chimney protective device according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: According to the actual perimeter of the coke oven chimney at different heights on site and the specific height of the position to be fastened, the steel plate is cut into steel plate strips with the same width and different lengths; The welding method of the steel plate tie rods is determined according to the actual thermal expansion and contraction degree of the coke oven chimney. One method is to weld the steel plate tie rods parallel to the chimney outer wall, and the other method is to weld the steel plate tie rods vertically to the chimney. At different heights of the chimney, the steel plate tie rods are evenly welded 360 degrees around the chimney in parallel to form a ring, and then the steel plate tie rods are welded to the longitudinal position of the chimney. At the position where the chimney needs to be tightened, steel plates are used to weld the rings evenly and vertically to the longitudinal position to form a protective mesh to surround the chimney in a ring shape; It is also necessary to reserve a margin at the joint of each annular steel plate tie rod to install a tension adjuster, and tighten each annular steel plate tie rod to a suitable position through the tension adjuster to ensure that the steel plate tie rod does not fall off and reserve a margin for thermal expansion and contraction of the chimney to facilitate future adjustment.

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