CN116836709A - Construction method for overhauling coke guide grating of coke guide - Google Patents
Construction method for overhauling coke guide grating of coke guide Download PDFInfo
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- CN116836709A CN116836709A CN202310784759.2A CN202310784759A CN116836709A CN 116836709 A CN116836709 A CN 116836709A CN 202310784759 A CN202310784759 A CN 202310784759A CN 116836709 A CN116836709 A CN 116836709A
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- coke guide
- coke
- grid body
- guide
- half grid
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- 239000000571 coke Substances 0.000 title claims abstract description 183
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 31
- 239000003245 coal Substances 0.000 claims abstract description 17
- 238000012423 maintenance Methods 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 230000008439 repair process Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000009193 crawling Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000007246 mechanism Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 241000282326 Felis catus Species 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B33/00—Discharging devices; Coke guides
- C10B33/14—Coke guides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/14—Cars
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
- C10B41/02—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke for discharging coke
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The application provides a construction method for overhauling a coke guide grid of a coke guide, which comprises a dismantling, installing or replacing method of the coke guide grid, so as to solve the problem that the coke guide in the middle of a furnace is difficult to replace because the coke guide in the coke guide is not provided with an end table (limited by a crane) when a plurality of coke ovens are connected in a row, and simultaneously, the coke guide is overhauled safely, reliably and quickly, and has less influence on normal production. According to the method, the flat coal rod overhauling frame and the coke guide structural beam are used as supports for hoisting the coke guide grid, and the upper half and the lower half of the coke guide grid are respectively hoisted through the alternate adjustment among a plurality of chain hoists on the coke guide grid, so that the method has the advantages of small hoisting tonnage and lower hoisting safety risk; the operation is convenient, and the influence on production is small; the device is suitable for maintenance situations in narrow spaces and/or in positions of the coke guide far away from the end table.
Description
Technical Field
The application relates to the technical field of coking equipment engineering installation, in particular to a construction method for overhauling a coke guide grating of a coke guide.
Background
The coke guide is an important device in the coke oven, and is operated on the coke side of the coke oven for opening and closing the oven door, so that the pushed hot coke is guided into the coke quenching car, and the coke guide has the functions of transporting the oven door and the oven door frame to be overhauled. The coke guide mainly comprises a steel structure, a running mechanism, a coke guide device, a furnace door cleaning device, a furnace frame cleaning device, a head and tail coke processing device, a dust removal protective cover, a cab, an electric room, a hydraulic station and the like, wherein the coke guide device comprises a coke guide grid, a driving arm 16, a connecting hanging wheel 10, a baffle roller 15, a lower guide roller 18, an upper guide rail, a lower guide rail 19, a coke guide groove 17, a dust removal plate set, a locking mechanism, a tilting prevention mechanism, a limiting mechanism and the like (see figure 1). The coke guide gate body can bear the baking and abrasion of coke Gao Wenzhi in the operation process, and can deform after long-term use, so that the coke guide gate is blocked when moving back and forth, and the production is seriously influenced. Therefore, the coke guide grating belongs to an important part in the coke guide, which needs to be replaced and overhauled periodically.
Some methods for overhauling or replacing coke guide grids are disclosed at present, for example, the disclosures of Chinese patent application publication numbers CN 110964545A and CN 102295935A. However, the prior art still has the following problems: (1) The coke guide is replaced in an integral hoisting mode, and is only suitable for being arranged at two end tables of a coke oven, but not suitable for being connected into a row by a plurality of coke ovens, wherein the coke guide is arranged in the middle of the oven, and the condition that the coke guide cannot be hoisted in and out at one time by a crane is avoided; (2) The prior art has large lifting weight and high safety lifting risk, and particularly, the coke guide is in a situation that the lifting space is narrow and cannot be positioned once and needs to be led in by a chain hoist; (3) Some of the prior art has had circumstances affecting normal coke production. Therefore, a more ingenious method for overhauling the coke guide grid is needed to be designed aiming at the situation.
Disclosure of Invention
Because the prior art has the defects, the application provides a construction method for overhauling the coke guide grids of the coke guide, so as to solve the problems that the coke guide in the middle of a furnace is not provided with an end table position (limited by a crane) and is difficult to replace, and meanwhile, the coke guide grids can be overhauled safely and reliably quickly, and the normal production is less affected.
In order to achieve the above purpose, in one aspect, the application provides a construction method for overhauling a coke guide coke grating of a coke guide, which is characterized by comprising the following steps: the method comprises the following steps of removing the coke guide grid:
step S101, according to the height of the bottom surface of a coke guide gate of a coke guide vehicle of the coke guide gate to be replaced, a track frame for transporting the coke guide gate and a transporting trolley are manufactured in advance: the track gauge of the track frame is matched with the track gauge of the transport trolley; the top surface of the transport trolley after being placed on the track frame is lower than the bottom surface of the coke guide grid;
step S102, stopping the coke guide at the middle position of a gap between two adjacent coke ovens, wherein the center of a grid opening of the coke guide grid is aligned with a coal leveling rod maintenance frame;
step S103, aligning the track frame with a Jiao Shanshan opening, and swinging the track frame from the machine side to Jiao Fang;
step S104, a plurality of the transfer trolleys are transferred to the track frame from the furnace door repair station;
step S105, hanging eight first chain hoists on the maintenance frame of the coal leveling rod at two sides;
step S106, opening the coke guide grating, temporarily welding and fixing the upper half grating body and the coke guide car structural beam by using a connecting plate, removing a connecting pin shaft and a base of a driving arm, and removing a lower guide roller and a locking pin seat between the lower guide roller and the lower half grating body;
s107, hanging the upper parts of the four second chain hoists on the coke guide structural beam, and hanging the lower parts of the second chain hoists on the lower half grid body; the four second chain hoists are pulled at the same time to take up force;
s108, cutting a connecting welded junction and bolts of the upper half grid body and the lower half grid body, slowly loosening the four second chain hoists, and separating the upper half grid body and the lower half grid body;
step S109, adjusting four second chain hoists to drop the lower half grid body onto a transport trolley of the track frame;
step S110, after a plurality of first chain hoists are connected with the lower half grid body, the lower half grid body is transported to a machine side from coke Fang Pingwen by means of position and tightness adjustment of the first chain hoists;
s111, under the cooperation of a crane at the outer side of the coke oven, lifting the lower half grid body from the track frame at the machine side to a ground trailer for carrying out;
and S112, cutting a hanging wheel and a temporary connecting plate for connecting the upper half grid body and the coke guide structural beam, dismantling the upper half grid body to a machine side according to a method similar to the method from S109 to S111, and then carrying out the upper half grid body by a crane to finish dismantling the coke guide grid.
Further, the step S102 further includes dedusting the body of the coke guide.
On the other hand, the application provides a construction method for overhauling a coke guide coke grating of a coke guide, which is characterized by comprising the following steps of: installing a new coke guide gate by reversely implementing the step of dismantling the coke guide gate, and specifically comprises the following steps:
s201, hanging a new upper half grid body onto the transport trolley;
step S202, conveying the new upper half grid body from a machine side to Jiao Fang under the assistance of eight second chain hoists on the coal leveling rod overhaul frame, hoisting the new upper half grid body to the original position under the assistance of four first chain hoists on a coke guide structural beam, and installing the connecting hoisting wheel;
step S203, a new lower half grid body is hung to the original position according to a method similar to the steps S201 to S202, connecting bolts of the upper half grid body and the lower half grid body are installed, and interfaces of the upper half grid body and the lower half grid body are welded;
s204, recovering the connecting pin shaft and the base of the driving arm; restoring the locking bolt seat between the lower guide roller and the new lower half grid body;
step S205, the installation is completed and the debugging operation of the coke guide device is carried out.
In still another aspect, the application provides a construction method for overhauling a coke guide coke grating of a coke guide, which is characterized by comprising the following steps of: the construction steps of removing the coke guide grid and installing the new coke guide grid are sequentially carried out to replace the coke guide grid.
Further, the track frame comprises a base plate at the bottom, two parallel track vertical frame bodies on the base plate and an inclined support piece between the track vertical frame bodies.
Further, the rail vertical frame body is welded by adopting No. 20 channel steel, and the supporting backing plate is a metal plate with the thickness of 200mm multiplied by 10 mm.
Further, the four first chain blocks have a specification of 5 tons, and the eight second chain blocks have a specification of 2 tons.
Further, the flat coal rod overhauling frame is arranged at the bottom of the coke oven top and is matched with a cat ladder and an overhauling platform as auxiliary facilities.
Compared with the prior art, the application has the following advantages or beneficial effects:
compared with the traditional construction method, the construction method provided by the application has the advantages that the flat coal rod overhauling frame and the coke guide structure beam are used as supports for hoisting the coke guide grid, and the upper half and the lower half of the coke guide grid are respectively hoisted through the alternate adjustment among a plurality of chain hoists on the coke guide structure beam, so that the method has small hoisting tonnage and lower hoisting safety risk; the operation is convenient, and the influence on production is small; the device is suitable for maintenance situations in narrow spaces and/or in positions of the coke guide far away from the end table.
Drawings
The application and its features, aspects and advantages will become more apparent from the detailed description of non-limiting embodiments with reference to the following drawings. Like numbers refer to like parts throughout. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the application.
FIG. 1 is a schematic view of a coke guide apparatus of a coke guide according to an embodiment of the present application;
FIG. 2 is a construction flow chart of removing a coke guide according to an embodiment of the application;
FIG. 3 is a schematic diagram of a front view structure of a construction station for detaching a lower half grid body of a coke guide grid according to an embodiment of the application;
FIG. 4 is a schematic side view of a construction station for detaching a lower half grid body of a coke guide grid according to an embodiment of the application;
FIG. 5 is a schematic elevation view of a track frame and a transport cart according to an embodiment of the application;
FIG. 6 is a schematic plan view of a track frame and a transporting carriage according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a front view structure of an upper half grid body installation construction of a coke guide grid according to an embodiment of the present application;
1, a track frame; 11. an upper half gate body; 12. a lower half gate body; 13. connecting welded junctions; 14. a coke guide structural beam; 15. a blocking roller; 16. a driving arm; 17. a coke guide groove; 18. a lower guide roller; 19. a lower guide rail; 2. a transport trolley; 21. a backing plate; 22. a rail vertical frame body; 23. a diagonal support member; 3. a coal leveling rod overhauling frame; 4. a first chain block; 5. a connecting plate; 6. a second chain block; 7. a crane; 8. a coke oven roof; 9. embedding bolts; 10. and is connected with a hanging wheel.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. It is to be understood that all of the described exemplary embodiments are only some, but not all, embodiments and examples of the present application. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the technical disclosure to those skilled in the art.
In the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, and are merely for convenience of describing the present application, not required that the present application must be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application.
The order of execution of the operations, steps, and the like in the apparatus and methods shown in the claims, the specification, and the drawings may be performed in any order as long as the order is not particularly specified, and as long as the output of the preceding process is not used in the following process. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may, optionally, include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Example 1
The embodiment relates to a coke guide as shown in fig. 1, comprising: the device comprises a coke guide grid, a driving arm 16, a connecting hanging wheel 10, a baffle roller 15, a lower guide roller 18, an upper guide rail, a lower guide rail 19, a coke guide groove 17, a dust removing plate group, a locking mechanism, a tilting prevention mechanism, a limit and the like. The coke guide grating comprises an upper half grating body 11, a lower half grating body 12 and a connecting weld 13 between the upper half grating body and the lower half grating body. Referring to fig. 2 to 4, the present embodiment provides a construction method for removing a coke guide grating of a coke guide, including the following steps:
step S101, according to the height of the bottom surface of a coke guide gate of a coke guide vehicle of the coke guide gate to be replaced, a track frame 1 and a transport trolley 2 for transporting the coke guide gate are manufactured in advance: the track gauge of the track frame 1 is matched with the track gauge of the transport trolley 2; the top surface of the transporting trolley 2 placed on the track frame 1 is lower than the bottom surface of the coke guide grid.
And S102, stopping the coke guide at the middle position of a gap between two adjacent coke ovens, wherein the center of a grid opening of the coke guide grid is aligned with the coal leveling rod overhauling frame 3. As a preferred technical solution, further: step S102 further includes dedusting the body of the coke guide.
Step S103, aligning the track frame 1 with the opening Jiao Shanshan, and swinging the track frame from the machine side to Jiao Fang.
Step S104, a plurality of transporting trolleys 2 are transported to the track frame 1 from the furnace door repair station.
Step 105, hanging eight first chain hoists 4 on the flat coal rod overhauling frame 3 at two sides.
Step S106, temporarily fixing the upper half grid body 11, and removing other accessories below the upper half grid body: referring to fig. 1, the coke guide grating is opened, the upper half grating body 11 and the coke guide structural beam 14 are temporarily welded and fixed by a connecting plate 5, the connecting pin shaft and the base of the driving arm 16 are removed, and the lower guide roller 18 and the locking pin seat between the lower half grating body 12 are removed.
Step S107, the upper parts of the four second chain hoists 6 are hooked on the coke guide structural beams 14, and the lower parts are hooked on the lower half grid body 12; the four second chain hoists 6 are pulled at the same time to eat the power.
Step S108, cutting the connecting welded junctions 13 and bolts of the upper half grid body 11 and the lower half grid body 12, slowly loosening the four second chain hoists 6, and separating the upper half grid body and the lower half grid body.
And step 109, adjusting four second chain hoists 6 to drop the lower half grid body 12 onto the transporting trolley 2 of the track frame.
Step S110, after a plurality of first chain hoists 4 are connected with the lower half grid body 12, the lower half grid body 12 is stably transported to a machine side from Jiao Fang by means of position and tightness adjustment of the first chain hoists 4.
And S111, under the cooperation of the crane 7 at the outer side of the coke oven, the lower half grid body 12 is lifted from the rail frame 1 at the machine side to a ground trailer for carrying out.
Step S112, cutting the hanging wheel 10 and the temporary connecting plate 5 for connecting the upper half grid body 11 with the coke guide structural beam 14, dismantling the upper half grid body 11, conveying the upper half grid body to a machine side, and conveying the upper half grid body out through the crane 7 to finish dismantling the coke guide grid according to the method similar to the steps S109 to S111.
As an example, referring to fig. 5 to 6, the track frame 1 includes a base plate 21 at the bottom, two parallel rows of track vertical frames 22 on the base plate 21, and a diagonal brace 23 between the track vertical frames 22. As a preferred technical solution, further: the rail vertical frame 22 is welded by adopting No. 20 channel steel, and the supporting backing plate is a metal plate with the thickness of 200mm multiplied by 10 mm.
As an example, the four second chain blocks 6 have a gauge of 5 tons and the eight first chain blocks 4 have a gauge of 2 tons. The specification configuration of the two chain hoists is suitable for replacing the coke guide grating of the coke guide of the 55-hole JN60-82 type coke oven.
As a preferred technical solution, further: the flat coal rod overhauling frame 3 is arranged at the bottom of the coke oven top 8 and is matched with a cat ladder and an overhauling platform as auxiliary facilities. Preferably, the flat coal rod overhaul frame 3 is fixed by an embedded bolt 9 at the bottom of the coke oven top 8.
Example 2
Referring to fig. 7, the present embodiment provides a construction method for installing a coke guide grating of a coke guide, wherein a new coke guide grating is installed by reversing the step of removing the coke guide grating in embodiment 1, and specifically includes the following steps:
step S201, hanging a new upper half grid body 11 onto the transport trolley 2;
step S202, conveying the new upper half grid body 11 from a machine side to Jiao Fang with the help of eight first chain hoists 4 on the flat coal pole overhaul frame 3, hoisting the new upper half grid body 11 to the original position with the help of four second chain hoists 6 on the coke guide structural beam 14, and installing and connecting a hoisting wheel 10;
step S203, the new lower half grid body 12 is hung to the original position according to the method similar to the steps S201 to S202, connecting bolts of the upper half grid body and the lower half grid body are installed, and the upper half grid body and the lower half grid body are welded to the welded junction 13;
s204, recovering the connecting pin shaft and the base of the driving arm 16; restoring the locking bolt seat between the lower guide roller 18 and the new lower half grid body;
step S205, the installation is completed and the debugging operation of the coke guide device is carried out.
Example 3
The present embodiment provides a construction method for replacing a coke guide by sequentially carrying out the construction steps of removing the coke guide in embodiment 1 and installing a new coke guide in embodiment 2.
In summary, the application provides a construction method for overhauling a coke guide grid of a coke guide, which comprises a method for dismantling, installing or replacing the coke guide grid, so as to solve the problem that the coke guide in the middle of a furnace is difficult to replace because the coke guide in the coke guide is not provided with an end table (limited by a crane) when a plurality of coke ovens are connected in a row, and simultaneously, the method can safely, reliably and quickly overhaul the coke guide with less influence on normal production. According to the method, the flat coal rod overhauling frame and the coke guide structural beam are used as supports for hoisting the coke guide grid, and the upper half and the lower half of the coke guide grid are respectively hoisted through the alternate adjustment among a plurality of chain hoists on the coke guide grid, so that the method has the advantages of small hoisting tonnage and lower hoisting safety risk; the operation is convenient, and the influence on production is small; the device is suitable for maintenance situations in narrow spaces and/or in positions of the coke guide far away from the end table.
Those skilled in the art will understand that the skilled person can implement the modification in combination with the prior art and the above embodiments, and this will not be repeated here. Such modifications do not affect the essence of the present application, and are not described herein.
The preferred embodiments of the present application have been described above. It is to be understood that the application is not limited to the specific embodiments described above, wherein devices and structures not described in detail are to be understood as being implemented in a manner common in the art; any person skilled in the art can make many possible variations and modifications to the technical solution of the present application or modifications to equivalent embodiments without departing from the scope of the technical solution of the present application, using the methods and technical contents disclosed above, without affecting the essential content of the present application. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present application still fall within the scope of the technical solution of the present application.
Claims (8)
1. A construction method for overhauling a coke guide grating of a coke guide is characterized by comprising the following steps of: the method comprises the following steps of removing the coke guide grid:
step S101, according to the height of the bottom surface of a coke guide gate of a coke guide vehicle of the coke guide gate to be replaced, a track frame for transporting the coke guide gate and a transporting trolley are manufactured in advance: the track gauge of the track frame is matched with the track gauge of the transport trolley; the top surface of the transport trolley after being placed on the track frame is lower than the bottom surface of the coke guide grid;
step S102, stopping the coke guide at the middle position of a gap between two adjacent coke ovens, wherein the center of a grid opening of the coke guide grid is aligned with a coal leveling rod maintenance frame;
step S103, aligning the track frame with a Jiao Shanshan opening, and swinging the track frame from the machine side to Jiao Fang;
step S104, a plurality of the transfer trolleys are transferred to the track frame from the furnace door repair station;
step S105, hanging eight first chain hoists on the maintenance frame of the coal leveling rod at two sides;
step S106, opening the coke guide grating, temporarily welding and fixing the upper half grating body and the coke guide car structural beam by using a connecting plate, removing a connecting pin shaft and a base of a driving arm, and removing a lower guide roller and a locking pin seat between the lower guide roller and the lower half grating body;
s107, hanging the upper parts of the four second chain hoists on the coke guide structural beam, and hanging the lower parts of the second chain hoists on the lower half grid body; the four second chain hoists are pulled at the same time to take up force;
s108, cutting a connecting welded junction and bolts of the upper half grid body and the lower half grid body, slowly loosening the four second chain hoists, and separating the upper half grid body and the lower half grid body;
step S109, adjusting four second chain hoists to drop the lower half grid body onto a transport trolley of the track frame;
step S110, after a plurality of first chain hoists are connected with the lower half grid body, the lower half grid body is transported to a machine side from coke Fang Pingwen by means of position and tightness adjustment of the first chain hoists;
s111, under the cooperation of a crane at the outer side of the coke oven, lifting the lower half grid body from the track frame at the machine side to a ground trailer for carrying out;
and S112, cutting a hanging wheel and a temporary connecting plate for connecting the upper half grid body and the coke guide structural beam, dismantling the upper half grid body to a machine side according to a method similar to the method from S109 to S111, and then carrying out the upper half grid body by a crane to finish dismantling the coke guide grid.
2. The method according to claim 1, wherein the step S102 further comprises dedusting the body of the coke guide.
3. A construction method for overhauling a coke guide grating of a coke guide is characterized by comprising the following steps of: installing a new coke guide by reversing the construction method of claim 1, comprising the steps of:
s201, hanging a new upper half grid body onto the transport trolley;
step S202, conveying the new upper half grid body from a machine side to Jiao Fang under the assistance of eight second chain hoists on the coal leveling rod overhaul frame, hoisting the new upper half grid body to the original position under the assistance of four first chain hoists on a coke guide structural beam, and installing the connecting hoisting wheel;
step S203, a new lower half grid body is hung to the original position according to a method similar to the steps S201 to S202, connecting bolts of the upper half grid body and the lower half grid body are installed, and interfaces of the upper half grid body and the lower half grid body are welded;
s204, recovering the connecting pin shaft and the base of the driving arm; restoring the locking bolt seat between the lower guide roller and the new lower half grid body;
step S205, the installation is completed and the debugging operation of the coke guide device is carried out.
4. A construction method for overhauling a coke guide grating of a coke guide is characterized by comprising the following steps of: the replacement of the coke guide is performed by sequentially carrying out the construction steps of claim 1 or claim 2, and claim 3.
5. A method of constructing a coke guide for maintenance of a coke guide as claimed in any one of claims 1 to 4, wherein the rail frame comprises a base plate at the bottom, two parallel rows of rail vertical frames on the base plate, and a diagonal brace between the rail vertical frames.
6. The construction method for overhauling the coke guide coke grid of the coke guide as claimed in claim 5, wherein the track vertical frame body is welded by adopting No. 20 channel steel, and the supporting base plate is a metal plate with the dimensions of 200mm multiplied by 10 mm.
7. A construction method for overhauling a coke guide coke grating according to any one of claims 1 to 4, wherein the four first chain hoists have a specification of 5 tons and the eight second chain hoists have a specification of 2 tons.
8. The construction method for overhauling a coke guide coke grating according to any one of claims 1 to 4, wherein the flat coal rod overhauling frame is arranged at the bottom of the coke oven top and is matched with a crawling ladder and an overhauling platform as auxiliary facilities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310784759.2A CN116836709A (en) | 2023-06-29 | 2023-06-29 | Construction method for overhauling coke guide grating of coke guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310784759.2A CN116836709A (en) | 2023-06-29 | 2023-06-29 | Construction method for overhauling coke guide grating of coke guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116836709A true CN116836709A (en) | 2023-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310784759.2A Pending CN116836709A (en) | 2023-06-29 | 2023-06-29 | Construction method for overhauling coke guide grating of coke guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116836709A (en) |
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2023
- 2023-06-29 CN CN202310784759.2A patent/CN116836709A/en active Pending
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