CN113278429A - Building geometric dimension control method for dry quenching tank refractory bricks - Google Patents
Building geometric dimension control method for dry quenching tank refractory bricks Download PDFInfo
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- CN113278429A CN113278429A CN202110441691.9A CN202110441691A CN113278429A CN 113278429 A CN113278429 A CN 113278429A CN 202110441691 A CN202110441691 A CN 202110441691A CN 113278429 A CN113278429 A CN 113278429A
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- 239000011449 brick Substances 0.000 title claims abstract description 58
- 238000010791 quenching Methods 0.000 title claims abstract description 43
- 230000000171 quenching effect Effects 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000571 coke Substances 0.000 claims abstract description 27
- 238000010276 construction Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002265 prevention Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 238000007689 inspection Methods 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- -1 and meanwhile Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
-
- 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
- C10B29/02—Brickwork, e.g. casings, linings, walls
Abstract
A building geometric dimension control method of a dry quenching tank refractory brick is characterized by comprising the following steps: a. set up a plurality of control frames in dry coke quenching jar stove outer covering, b, inspect the control frame, c, guarantee that the working face of resistant firebrick contacts with the pole setting of control frame when resistant firebrick builds construction, d, the brick layer line in the pole setting of control frame is as elevation control benchmark to the upper surface of building the brick layer compares with brick layer line and is higher or lower than the judgement and builds the elevation. The method for controlling the building geometric dimension of the refractory brick of the coke dry quenching tank body has the advantages of simple structure of the control frame, convenient manufacture and arrangement, safe and reliable engineering quality, capability of checking all directions at any time during construction, timely deviation correction, improvement of construction building quality, guidance in the construction process, prevention of rework and other conditions, and reduction of construction cost.
Description
Technical Field
The invention relates to a method for controlling the building size of a refractory brick, in particular to a method for controlling the building geometric size of a dry quenching tank refractory brick.
Background
In order to respond to the national requirements of energy conservation and environmental protection in recent years, most domestic coke plants are successively and newly built with a plurality of coke dry quenching devices to replace wet quenching. The coke dry quenching system is used as an important ring for cooling coke produced by a coke oven, the laying quality of coke dry quenching directly influences the production state of the coke dry quenching system, and the domestic coke dry quenching laying construction level is mature through continuous summary accumulation. However, with the continuous updating of each accessory equipment and the progress of the production technology level, the overall requirement on the state of the dry quenching equipment is higher. Therefore, at present, various large coke plants pay more attention to the construction and masonry quality of the dry quenching coke, and higher requirements are also put forward in the metallurgical construction industry.
In the summary of past construction experience, the fact that a plurality of furnace building workers simultaneously build the same layer of bricks is found that the building levels of the furnace building workers are different, the construction is purely manual operation, errors exist in materials, the control of the geometric dimension of the dry coke quenching tank can be influenced by the manufacturing and installation deviation of a furnace shell and the like, and the geometric dimension exceeds the national standard. The currently preferred control method is the crane method, using a central wheel lever for control and inspection. Namely, a central guide rod is arranged at the center of the dry quenching tank body from bottom to top, and then the radius and the elevation are checked by adopting a measuring tape measuring mode. However, this approach has no guiding effect and requires inspection after the daily workload is completed, which can lead to a lag in the time to expose the problem; the geometric dimension needs to be frequently checked, and the time consumption is large; the requirement for the arrangement of the central guide rod is high, deviation cannot be caused, and errors are easy to generate when the measuring tape is used for measuring. Particularly the joint part of the inner ring of the annular air duct and the prestoring area; because the furnace shell of the prestoring region is positioned and is built from bottom to top by taking the radius as the standard when the furnace shell is built at the lower part, the dislocation is easily generated under the influence of the diameter-changing control deviation and the furnace shell deviation. Based on the above, the method has a poor effect on controlling the geometric dimension of the dry coke quenching tank in actual construction.
The known methods for constructing refractory bricks for coke dry quenching tanks have various inconveniences and problems.
Disclosure of Invention
The invention aims to provide a method for controlling the building geometric dimension of a refractory brick of a dry quenching tank body, which has the advantages of high safety coefficient, good effect and simple control measures.
In order to achieve the purpose, the technical solution of the invention is as follows:
a building geometric dimension control method of a dry quenching tank refractory brick is characterized by comprising the following steps:
a. a plurality of control frames are arranged in the furnace shell of the dry coke quenching tank
A plurality of control frames are circumferentially arranged on the inner bottom surface of the shell of the dry coke quenching tank, each control frame is provided with an upright post and a cross rod, the upright posts are parallel to the axis of the shell of the dry coke quenching tank, one end of each cross rod is connected with the upright posts through connecting pieces to ensure that the cross rods are perpendicular to the upright posts, the other ends of the cross rods are fixedly welded with the inner wall of the shell of the dry coke quenching tank, the upright posts are arranged on the edges of the shell of the dry coke quenching tank to form a building design radius of refractory bricks, and brick layer lines are arranged on the upright posts;
b. inspecting the control rack
Checking a control frame, including checking the verticality of a cross rod and an upright rod of the control frame, checking the masonry design radius of a refractory brick surrounded by the upright rod at the edge of a furnace shell of a dry coke quenching tank, putting the deviation into use within a radius control error range, and setting the design radius error allowable value to be 0-15 mm;
c. during the construction of the refractory bricks, the working surface of the refractory bricks is ensured to be in contact with the vertical rods of the control frame;
d. the brick layer line on the pole setting of control frame is as elevation control benchmark to the upper surface and the brick layer line of building a brick layer are compared in order to judge to build the elevation on the high side or on the low side.
The method for controlling the building geometric dimension of the dry quenching tank refractory bricks can be further realized by adopting the following technical measures.
The method as described above, wherein the length of the vertical rod is 4 to 6 m.
The method of the preceding, wherein the cross-bar has a length of 1-3 m.
The number of the control frames is more than or equal to 12.
In the method, the control rack is a control rack which is adapted to the prestoring region, the circular air duct region and the cooling region and is independent from each other.
After the technical scheme is adopted, the method for controlling the building geometric dimension of the dry quenching tank refractory brick has the following advantages:
1. the control frame has simple structure and convenient manufacture and arrangement;
2. the engineering quality is safe and reliable, the inspection of each direction is carried out at any time during construction, the deviation is corrected in time, and the construction and building quality is improved;
3. and guidance is provided in the construction process so as to prevent the conditions of rework and the like and reduce the construction cost.
Drawings
FIG. 1 is a schematic diagram of laying refractory bricks of a dry quenching tank based on a control frame according to an embodiment of the invention.
In the figure: 1 furnace shell boundary, 2 refractory bricks, 3 control frame, 4 design radius and 5 brick layer line.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Example 1
The invention discloses a building geometric dimension control method of a dry quenching tank refractory brick, which is characterized in that a plurality of control frames are arranged on the inner wall of a furnace shell, the edges of the control frames enclose a building design radius of the refractory brick, and meanwhile, brick layer lines are arranged on the control frames, and the specific operation method comprises the following steps:
in order to achieve the above object, the technical solution of the present invention is as follows:
(1) each control frame is formed by combining a steel pipe with the length of 1m and a steel pipe with the length of 4m (3 m/6 m); the 4m steel pipes are provided with brick layer lines, and the two steel pipes are mutually perpendicular and are connected through a fastener; the distance between the outer wall of the steel pipe with the length of 4m and the end part of the steel pipe with the length of 1m is the masonry thickness of the refractory bricks, and the total number of the control frames is 12. FIG. 1 is a schematic diagram of laying refractory bricks of a dry quenching tank based on a control frame according to an embodiment of the invention.
(2) And the fixed points of all the control frames are uniformly arranged on the same height of the furnace shell, and the total number is 12.
(3) And welding the control frame on the fixed points of the control frames.
(4) And checking the size of the welded control frame, namely checking the verticality of the control frame and checking the radius enclosed by the control frame, wherein the deviation can be put into use within the radius control error range (the design radius error allowable value is generally 0-15 mm).
(5) When the refractory brick is built, only the working face of the refractory brick is required to be ensured to be contacted with the control frame. If the outer wall of the refractory material exceeds the control frame, the radius is smaller, and if a gap exists between the outer wall of the refractory material and the control frame, the radius is larger. And adjusting the masonry of the refractory bricks according to the radius.
(6) And the brick layer line on the control frame is used as an elevation control reference, and the upper surface of the masonry brick layer is compared with the brick layer line to see that the masonry elevation at the moment is higher or lower.
Example 2
The embodiment is a method for building refractory bricks in a 100-ton dry quenching cooling area and an annular air duct area, which comprises the following steps:
the control frame is arranged at the top of the cooling section, so that the masonry construction of the refractory bricks at the position of the cooling section can be ensured. The masonry radius of the cooling area is 8600mm, the masonry thickness of the cooling area is 4178mm, and the masonry thickness is 625 mm.
(1) Each control frame is formed by combining a 1m steel pipe and a 6m steel pipe; the 6m steel pipe is provided with a brick layer line, and the two steel pipes are mutually vertical and connected through a fastener; the distance between the outer wall of the 6m steel pipe and the end part of the 1m steel pipe is 625mm, and the total number of the control frames is 12.
(2) And the fixed points of all the control frames are uniformly arranged on the same height of the furnace shell, and the total number is 12.
(3) And respectively welding the 12 control frames on the fixed points of the control frames.
(4) And checking the size of the welded control frame, checking the verticality of the control frame by using a horizontal ruler to be less than or equal to 3mm/6m, and checking the radius defined by the control frame by using a 5m long measuring tape to be 4300 +/-5 mm.
(5) And judging the radius deviation by observing the clearance between the outer side of the refractory material and the control frame.
(6) And judging the building elevation error of the refractory material by observing the height difference between the upper surface of the building brick layer and the brick layer line.
The method for controlling the masonry geometric dimension of the dry quenching tank refractory bricks has the following advantages compared with the prior art: the inspection of each direction can be carried out at any time during construction, the deviation can be corrected in time, and the construction and masonry quality is improved; the condition of rework caused by larger deviation is avoided; the acceptance is quicker and more intuitive, and the brick can be directly obtained by directly comparing the masonry radius and the height of the brick with the boundary and the floor height line of the control frame. Arranging a plurality of control frames is beneficial to controlling the flatness of the brick layer in the annular direction. Can provide guidance in the construction process so as to prevent the conditions of rework and the like and reduce the construction cost. The problem of wrong station of annular wind channel position and handing-over position of prestoring district has directly been solved.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.
Claims (5)
1. A building geometric dimension control method of a dry quenching tank refractory brick is characterized by comprising the following steps:
a. a plurality of control frames are arranged in the furnace shell of the dry coke quenching tank
A plurality of control frames are circumferentially arranged on the inner bottom surface of the shell of the dry coke quenching tank, each control frame is provided with an upright post and a cross rod, the upright posts are parallel to the axis of the shell of the dry coke quenching tank, one end of each cross rod is connected with the upright posts through connecting pieces to ensure that the cross rods are perpendicular to the upright posts, the other ends of the cross rods are fixedly welded with the inner wall of the shell of the dry coke quenching tank, the upright posts are arranged on the edges of the shell of the dry coke quenching tank to form a building design radius of refractory bricks, and brick layer lines are arranged on the upright posts;
b. inspecting the control rack
Checking a control frame, including checking the verticality of a cross rod and an upright rod of the control frame, checking the masonry design radius of a refractory brick surrounded by the upright rod at the edge of a furnace shell of a dry coke quenching tank, putting the deviation into use within a radius control error range, and setting the design radius error allowable value to be 0-15 mm;
c. during the construction of the refractory bricks, the working surface of the refractory bricks is ensured to be in contact with the vertical rods of the control frame;
d. the brick layer line on the pole setting of control frame is as elevation control benchmark to the upper surface and the brick layer line of building a brick layer are compared in order to judge to build the elevation on the high side or on the low side.
2. The method for controlling the masonry geometry of the dry quenching pot refractory bricks according to claim 1, wherein the length of the vertical rods is 4-6 m.
3. The method of claim 1, wherein the cross bar has a length of 1-3 m.
4. The method for controlling the masonry geometry of the dry quenching tank refractory bricks according to claim 1, wherein the number of the control frames is more than or equal to 12.
5. The method for controlling the masonry geometry of the dry quenching tank refractory bricks according to claim 1, wherein the control racks are independent control racks adapted to a prestore area, a circular air duct area and a cooling area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110441691.9A CN113278429A (en) | 2021-04-23 | 2021-04-23 | Building geometric dimension control method for dry quenching tank refractory bricks |
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| CN202110441691.9A CN113278429A (en) | 2021-04-23 | 2021-04-23 | Building geometric dimension control method for dry quenching tank refractory bricks |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114874792A (en) * | 2022-04-23 | 2022-08-09 | 中国五冶集团有限公司 | Error control method for front surface line of heat recovery coke oven |
| CN114933911A (en) * | 2022-03-28 | 2022-08-23 | 中国五冶集团有限公司 | Method for building gas collecting pipe of clean heat recovery coke oven |
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|---|---|---|---|---|
| CN101081986A (en) * | 2007-02-13 | 2007-12-05 | 上海五冶冶金建设有限公司 | Coke oven masonry construction method employing upright line rod |
| CN101928575A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Dry quenching laying method |
| CN102777046A (en) * | 2012-08-20 | 2012-11-14 | 黄国祯 | Dry wall-building method adopting frame structure |
| CN103666494A (en) * | 2012-09-24 | 2014-03-26 | 五冶集团上海有限公司 | Coke oven column installation method |
| CN207193189U (en) * | 2017-08-31 | 2018-04-06 | 中国一冶集团有限公司 | Coke dry quenching furnace frustum is built by laying bricks or stones with masonry physical dimension control device |
| RU2017145100A3 (en) * | 2018-01-29 | 2019-07-29 | ||
| CN210263139U (en) * | 2019-01-31 | 2020-04-07 | 中建二局第二建筑工程有限公司 | Auxiliary tool for building circular inspection well |
-
2021
- 2021-04-23 CN CN202110441691.9A patent/CN113278429A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081986A (en) * | 2007-02-13 | 2007-12-05 | 上海五冶冶金建设有限公司 | Coke oven masonry construction method employing upright line rod |
| CN101928575A (en) * | 2009-06-19 | 2010-12-29 | 中冶成工上海五冶建设有限公司 | Dry quenching laying method |
| CN102777046A (en) * | 2012-08-20 | 2012-11-14 | 黄国祯 | Dry wall-building method adopting frame structure |
| CN103666494A (en) * | 2012-09-24 | 2014-03-26 | 五冶集团上海有限公司 | Coke oven column installation method |
| CN207193189U (en) * | 2017-08-31 | 2018-04-06 | 中国一冶集团有限公司 | Coke dry quenching furnace frustum is built by laying bricks or stones with masonry physical dimension control device |
| RU2017145100A3 (en) * | 2018-01-29 | 2019-07-29 | ||
| CN210263139U (en) * | 2019-01-31 | 2020-04-07 | 中建二局第二建筑工程有限公司 | Auxiliary tool for building circular inspection well |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114933911A (en) * | 2022-03-28 | 2022-08-23 | 中国五冶集团有限公司 | Method for building gas collecting pipe of clean heat recovery coke oven |
| CN114874792A (en) * | 2022-04-23 | 2022-08-09 | 中国五冶集团有限公司 | Error control method for front surface line of heat recovery coke oven |
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Application publication date: 20210820 |
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