CN113550592A - Construction method of post-pouring coke oven floor ventilation trench and gas pipe trench - Google Patents
Construction method of post-pouring coke oven floor ventilation trench and gas pipe trench Download PDFInfo
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- CN113550592A CN113550592A CN202110831795.0A CN202110831795A CN113550592A CN 113550592 A CN113550592 A CN 113550592A CN 202110831795 A CN202110831795 A CN 202110831795A CN 113550592 A CN113550592 A CN 113550592A
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- chute
- coke oven
- pouring
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- concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
-
- 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
- C10B29/00—Other details of coke ovens
- C10B29/08—Bracing or foundation of the ovens
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0481—Concrete chutes
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention relates to a construction method of a post-pouring coke oven floor ventilation trench and a gas pipe trench, which comprises the following steps of 1) manufacturing a stringing barrel and a chute, wherein the stringing barrel comprises a funnel, and the bottom of the funnel is fixedly connected with a concrete guide cylinder; the concrete guide cylinder is inserted into the coke oven from the coke oven top plate cleaning pipe; the chute is arranged in the coke oven, and the lower end of the chute is arranged at the pouring position of the coke oven floor; 2) selecting a certain position on a coke oven floor as a pouring starting point, wherein the lower end of a chute is arranged at the starting point, and the upper end of the chute faces the direction of a concrete pump; 3) selecting a cleaning pipe at a corresponding position at the upper end of the chute to be filled into the stringing barrel, wherein a concrete guide cylinder of the stringing barrel is connected with the chute; 4) pumping a concrete pump into the upper opening of the string barrel, and injecting concrete into the string barrel; 5) and selecting a second pouring point, moving the string barrel to a position where the chute can be transferred to the point, moving the chute in the coke oven to enable the upper end of the chute to be connected with the string barrel and the lower end of the chute to be connected with the second pouring point, and continuously pouring concrete.
Description
Technical Field
The invention relates to a pouring construction technology of a coke oven structure, in particular to a later pouring construction method of a coke oven floor ventilation trench and a gas pipe trench.
Background
At present, pouring of a ventilation trench and a gas pipe trench on a base bottom plate of a coke oven is influenced by construction period and erection of full supports of a top plate of the coke oven, and construction is usually started after the construction of the top plate of the coke oven is finished and the full supports are disassembled. In actual pouring, because the clearance height between the top plate and the bottom plate of the coke oven is small and the main flues on the two sides are poured, the end of the pump pipe of the pump truck cannot extend to the pouring position, and the common existing construction adopts ground pump pouring. The trench of the coke oven penetrates through the whole bottom plate, the total length is about 50 meters, a great number of supporting upright posts are arranged in the coke oven, and generally, one row of trenches is arranged in every 500mm of the upright posts in the coke oven according to the design and is arranged among the upright posts. When the ground pump is arranged for casting the trench, in order to convey concrete slurry to a specified casting place, a concrete conveying pipeline of the ground pump needs to enter the coke oven at a reserved construction opening and needs to bypass the upright column and extend to the trench. When in construction, one trench is poured, and a section of concrete conveying pipeline is added every 10 meters. The concrete conveying pipeline needs to be paved for about 60 to 70 meters when a trench is poured. Because the conveying pipeline has more corners, the installation is more complicated. If the joint sealing is not good during installation, the blockage and slurry leakage of the concrete conveying pipeline are easily caused by the internal pressure of the fluid, the floor of the coke oven is seriously polluted, and the construction quality cannot be ensured.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the existing coke oven construction adopts ground pump trench pouring, the concrete conveying pipeline has long stroke, more connecting pipes and easy slurry leakage.
In order to solve the problems, the invention adopts the technical scheme that:
a construction method of a post-pouring coke oven floor ventilation trench and a gas pipe trench is carried out according to the following steps,
firstly, manufacturing a stringing barrel and a chute, wherein the stringing barrel comprises a funnel, and a concrete guide cylinder is arranged at the bottom of the funnel; the stringing barrel is arranged on the top of the coke oven, and the concrete guide cylinder is inserted into the coke oven from the coke oven top plate cleaning pipe; the chute is arranged in the coke oven, and the lower end of the chute is arranged at the pouring position of the coke oven floor;
secondly, selecting a certain position on the floor of the coke oven as a pouring starting point, arranging the lower end of the chute at the starting point, and enabling the upper end of the chute to face the direction of the concrete pump;
thirdly, selecting a cleaning pipe at a corresponding position at the upper end of the chute to be filled into a stringing barrel, wherein a concrete guide cylinder of the stringing barrel is connected with the chute;
fourthly, pumping concrete into the upper opening of the string barrel, and injecting concrete into the string barrel;
and fifthly, selecting a second pouring point, moving the string barrel to a position where the chute can be transferred to the point, moving the chute in the coke oven to enable the upper end of the chute to be connected with the string barrel, enabling the lower end of the chute to be connected with the second pouring point, and continuously pouring concrete.
Compared with the prior art, the invention adopting the technical scheme has the beneficial effects that:
the construction method provided by the invention does not need long-distance conveying, the stringing barrel is arranged above the pouring position, the pump truck directly performs grouting, and the conveying distance is small; the chute is used for receiving concrete slurry conveyed from the top plate and guiding the concrete slurry to the trench in a straight line, so that slurry leakage is avoided, and the problem that the floor of the coke oven is easily polluted is solved; the stringing barrels enter through the top plate blocking pipes, and are uniformly arranged on the top plate in a cleaning manner, so that the stringing barrels are arranged at a plurality of positions and can be close to any pouring point of a trench, the pouring continuity is ensured, and the construction quality of a coke oven ventilation trench and a gas pipe trench is ensured; the invention does not need to take over, greatly saves the labor cost, is convenient and quick to put the concrete raw materials at fixed points by the pump truck, and can effectively shorten the construction period.
Preferably, the further technical scheme of the invention is as follows:
the concrete guide cylinder extends 1000mm below the top plate of the coke oven. The device is convenient to be lapped with the chute.
The lap joint of the upper end of the chute and the lower end of the concrete guide cylinder is not less than 30 mm. The upper end of the chute is limited by the structure to be higher than the concrete guide cylinder by one section, so that the concrete is prevented from flowing backwards upwards under strong impact, and slurry leakage is avoided.
The chute is provided with an attached vibrator. The vibration can effectively avoid the difficulty of concrete flowing.
The chute upper end is connected with the concrete draft tube, and the lower extreme is provided with the walking wheel, and the lower extreme can be followed the initial point of pouring and removed to the terminal point of pouring under the fixed circumstances in upper end. The structure enables the grouting point to be continuously carried out along the trench, and one-time pouring is realized.
Handles are fixedly connected to two sides of the funnel of the stringing barrel. The handle is convenient to install or change the position of the stringing barrel.
Drawings
FIG. 1 is a schematic structural view of a coke oven requiring pouring in an existing internal ventilation trench or gas pipe trench;
FIG. 2 is a schematic view of a barrel stringing structure according to the present invention;
FIG. 3 is a perspective view of the barrel stringing structure of the present invention;
fig. 4 is a schematic view of the arrangement of the equipment in casting construction of the invention.
In the figure, a top plate 1, a cleaning pipe 2, a ventilation trench 3, a stringing barrel 4, a funnel 41, a concrete guide cylinder 42, a handle 43, a chute 5 and a travelling wheel 6.
Detailed Description
The invention will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the invention.
Referring to fig. 1 to 4, the construction method of the post-cast coke oven floor ventilation trench and the gas pipe trench provided by the invention is carried out according to the following steps,
firstly, manufacturing a stringing barrel 4 and a chute 5, wherein the stringing barrel 4 comprises a funnel 41, and a concrete guide cylinder 42 is arranged at the bottom of the funnel 41; the stringing barrel 4 is arranged on the top of the coke oven, and the concrete guide cylinder 42 is inserted into the coke oven from the position of the cleaning pipe 2 of the coke oven top plate 1; the chute 5 is arranged in the coke oven, and the lower end of the chute is arranged at the pouring position of the coke oven floor (namely the ventilation trench 3 or the gas pipe trench).
And secondly, selecting a certain position on the floor of the coke oven as a pouring starting point, wherein the lower end of the chute 5 is arranged at the starting point, and the upper end of the chute faces the direction of the concrete pump.
Thirdly, the cleaning pipe 2 is selected to be arranged into the stringing barrel 4 at the corresponding position of the upper end of the chute 5, and the concrete guide cylinder 42 of the stringing barrel 4 is connected with the chute 5.
And fourthly, pumping concrete into the upper opening of the string barrel 4, and injecting concrete into the string barrel 4.
And fifthly, selecting a second pouring point, moving the string barrel 4 to a position where the chute 5 can be transferred to the point, moving the chute 5 in the coke oven to enable the upper end of the chute to be connected with the string barrel 4, enabling the lower end of the chute to be connected with the second pouring point, and continuously pouring concrete.
Preferably, in the above method, the upper end of the chute 5 is connected with the concrete guide cylinder 42, the lower end is provided with the travelling wheels 6, and the lower end can move from the pouring starting point to the pouring end point under the condition of being fixed at the upper end. Once pour, chute 5 can be followed the structure removal of ventilation trench 3, realizes connecting and pours to reduce the number of times that cluster bucket 4 changed the position, reduce construction latency.
Prepare the stringing barrel 4, weld the handles 43 on both sides of the feeding bin, and facilitate the movement of the stringing barrel by personnel.
The lap joint of the upper opening of the chute 5 and the lower opening of the stringing barrel 4 is not less than 30 mm. The concrete guide cylinder 42 extends into the position 1000mm below the coke oven top plate 1.
If concrete slurry is difficult to flow down during pouring, an attached vibrator can be installed on the chute 5. The vibrator effectively prevents the concrete from stagnation.
Based on the concept of the above scheme, the stringing barrel 4 and the chute 5 aiming at other trenches can also be arranged at the same time. Therefore, after the concrete pump pours a trench, the pump nozzle directly transfers to the next barrel string 4 for pouring, and the waiting time is reduced. If the length of the constructed trench is large, a plurality of chutes 5 can be arranged to be poured at multiple points simultaneously.
The invention has the beneficial effects that: 1) the cleaning holes on the top plate of the original structure of the coke oven are used as grouting holes, the cleaning holes close to the trench pouring points can be found all the time to arrange the string barrels, the relative positions of the string barrels and the specified pouring points can be protected all the time, and the direct fixed-point grouting is carried out through a pump truck. The stringing barrel is light in weight, convenient to move and easy to install, is high in installation and fixing speed, and realizes continuous pouring. The chute has a short flow guide path, no risk of slurry leakage caused by pipeline pressure exists, and slurry leakage can be completely avoided as long as the upper end of the lap joint point of the chute and the concrete flow guide pipe is reserved to be long enough; the chute is fixed and short in length, which means that the rolling conveying path is short and the pouring speed is high; the invention saves the installation of a ground pump and a conveying pipeline, shortens the construction period and saves the cost; the method of the invention ensures the construction quality by continuous pouring, well utilizes the arrangement of the cleaning pipes of the top plate and is easy to pour concrete into the appointed position. From the equipment investment perspective, in the prior art, the ground pump pouring has too many connecting pipes, pipeline materials and considerable investment of pipe connecting personnel are necessary.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (6)
1. A construction method of a post-pouring coke oven floor ventilation trench and a gas pipe trench is characterized in that: the method is carried out according to the following steps,
firstly, manufacturing a stringing barrel and a chute,
the stringing barrel comprises a funnel, and a concrete guide cylinder is arranged at the bottom of the funnel; the stringing barrel is arranged on the top of the coke oven, and the concrete guide cylinder is inserted into the coke oven from the coke oven top plate cleaning pipe;
the chute is arranged in the coke oven, and the lower end of the chute is arranged at the pouring position of the coke oven floor;
secondly, selecting a certain position on the floor of the coke oven as a pouring starting point, arranging the lower end of the chute at the starting point, and enabling the upper end of the chute to face the direction of the concrete pump;
thirdly, selecting a cleaning pipe at a corresponding position at the upper end of the chute to be filled into a stringing barrel, wherein a concrete guide cylinder of the stringing barrel is connected with the chute;
fourthly, pumping concrete into the upper opening of the string barrel, and injecting concrete into the string barrel;
and fifthly, selecting a second pouring point, moving the string barrel to a position where the chute can be transferred to the point, moving the chute in the coke oven to enable the upper end of the chute to be connected with the string barrel, enabling the lower end of the chute to be connected with the second pouring point, and continuously pouring concrete.
2. The construction method of the post-cast coke oven floor ventilation trench and the gas pipe trench as claimed in claim 1, wherein: the concrete guide cylinder extends 1000mm below the top plate of the coke oven.
3. The construction method of the post-cast coke oven floor ventilation trench and the gas pipe trench as claimed in claim 2, wherein: the lap joint of the upper end of the chute and the lower end of the concrete guide cylinder is not less than 30 mm.
4. The construction method of the post-cast coke oven floor ventilation trench and the gas pipe trench as claimed in claim 3, wherein: the chute is provided with an attached vibrator.
5. The construction method of the post-cast coke oven floor ventilation trench and the gas pipe trench as claimed in claim 3, wherein: the chute upper end is connected with the concrete draft tube, and the lower extreme is provided with the walking wheel, and the lower extreme can be followed the initial point of pouring and removed to the terminal point of pouring under the fixed circumstances in upper end.
6. The method of claim 3, wherein handles are fixedly connected to both sides of the funnel of the barrel string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110831795.0A CN113550592A (en) | 2021-07-22 | 2021-07-22 | Construction method of post-pouring coke oven floor ventilation trench and gas pipe trench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110831795.0A CN113550592A (en) | 2021-07-22 | 2021-07-22 | Construction method of post-pouring coke oven floor ventilation trench and gas pipe trench |
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| Publication Number | Publication Date |
|---|---|
| CN113550592A true CN113550592A (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110831795.0A Withdrawn CN113550592A (en) | 2021-07-22 | 2021-07-22 | Construction method of post-pouring coke oven floor ventilation trench and gas pipe trench |
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| Country | Link |
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| CN (1) | CN113550592A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575715A (en) * | 2023-05-25 | 2023-08-11 | 中国二十二冶集团有限公司 | Method for quickly pouring ground of basement of coke oven |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899903A (en) * | 2009-05-27 | 2010-12-01 | 中冶成工上海五冶建设有限公司 | Fixing device for embedded sleeves of fundamental roof of coke oven |
| CN202969944U (en) * | 2012-12-29 | 2013-06-05 | 天津众业石化建筑安装工程有限公司 | Concrete pouring blanking appliance |
| CN103243620A (en) * | 2013-05-12 | 2013-08-14 | 中国十七冶集团有限公司 | Utilization method for movable chute for concrete pouring of monolithic track bed of modern tramcar |
| CN105986671A (en) * | 2015-01-30 | 2016-10-05 | 重庆雄创建筑工程技术有限公司 | Building concrete pouring process |
| CN108019052A (en) * | 2017-12-05 | 2018-05-11 | 马鞍山钢铁股份有限公司 | A kind of coke-oven coal tracheae brick passage sealing repair apparatus and its sealing method for repairing and mending |
| CN111962873A (en) * | 2020-09-10 | 2020-11-20 | 中国二十二冶集团有限公司 | Confined space concrete pouring guide device and construction method |
-
2021
- 2021-07-22 CN CN202110831795.0A patent/CN113550592A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899903A (en) * | 2009-05-27 | 2010-12-01 | 中冶成工上海五冶建设有限公司 | Fixing device for embedded sleeves of fundamental roof of coke oven |
| CN202969944U (en) * | 2012-12-29 | 2013-06-05 | 天津众业石化建筑安装工程有限公司 | Concrete pouring blanking appliance |
| CN103243620A (en) * | 2013-05-12 | 2013-08-14 | 中国十七冶集团有限公司 | Utilization method for movable chute for concrete pouring of monolithic track bed of modern tramcar |
| CN105986671A (en) * | 2015-01-30 | 2016-10-05 | 重庆雄创建筑工程技术有限公司 | Building concrete pouring process |
| CN108019052A (en) * | 2017-12-05 | 2018-05-11 | 马鞍山钢铁股份有限公司 | A kind of coke-oven coal tracheae brick passage sealing repair apparatus and its sealing method for repairing and mending |
| CN111962873A (en) * | 2020-09-10 | 2020-11-20 | 中国二十二冶集团有限公司 | Confined space concrete pouring guide device and construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575715A (en) * | 2023-05-25 | 2023-08-11 | 中国二十二冶集团有限公司 | Method for quickly pouring ground of basement of coke oven |
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Application publication date: 20211026 |
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| WW01 | Invention patent application withdrawn after publication |