CN112458219A - Special-shaped refractory brick for side wall of blast furnace ceramic cup and combination method thereof - Google Patents
Special-shaped refractory brick for side wall of blast furnace ceramic cup and combination method thereof Download PDFInfo
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- CN112458219A CN112458219A CN202011431269.7A CN202011431269A CN112458219A CN 112458219 A CN112458219 A CN 112458219A CN 202011431269 A CN202011431269 A CN 202011431269A CN 112458219 A CN112458219 A CN 112458219A
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- 239000011449 brick Substances 0.000 title claims abstract description 161
- 239000000919 ceramic Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 abstract description 21
- 238000013461 design Methods 0.000 abstract description 7
- 238000003723 Smelting Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 12
- 206010066054 Dysmorphism Diseases 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 206010063659 Aversion Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003908 quality control method Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/04—Blast furnaces with special refractories
- C21B7/06—Linings for furnaces
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Abstract
The invention discloses a special-shaped refractory brick for a side wall of a blast furnace ceramic cup and a combination method thereof. The refractory brick has universality, and the side walls of the ceramic cups with different hearth diameters can be built into a quasi-circular polygon by adopting the same brick type, so that the design and production manufacturing efficiency is improved, and the manufacturing cost of the refractory brick for the side wall of the ceramic cup is reduced; in the brickwork of the side wall of the blast furnace ceramic cup combined by the refractory bricks, the convex arc-shaped side surface of the refractory bricks extends into the concave arc-shaped side surface, and the left and right adjacent refractory bricks form an occlusion structure, so that the stability of the side wall of the ceramic cup is improved, and the danger of smelting products passing through masonry joints among the bricks is reduced.
Description
Technical Field
The invention belongs to the technical field of refractory bricks, and particularly relates to a special-shaped refractory brick for a side wall of a ceramic cup of a blast furnace and a combination method thereof.
Background
At present, the refractory bricks for building the side wall of the ceramic cup of the hearth of the blast furnace comprise two types, namely large refractory products and small refractory bricks. In order to adapt to the circular characteristic of a blast furnace hearth, when a large refractory product is adopted to build the side wall of the ceramic cup, wedge-shaped bricks with different cold and hot surface widths are required to be designed and manufactured according to different diameters of the hearth so as to build a quasi-circular polygon, so that the built side wall of the ceramic cup has good stability; when the side wall of the ceramic cup is built by small refractory bricks, the side wall is built into a quasi-circular polygon by matching straight bricks and wedge-shaped bricks. From the aspect analysis such as masonry structure, design and production manufacturing efficiency, masonry construction and brickwork quality control, the main defect that above-mentioned two kinds of modes exist has: 1. when the side wall of the ceramic cup is built by the massive refractory products, the wedge-shaped bricks with different widths of cold and hot surfaces are specially designed and manufactured for different hearth diameters, the massive products lack universality, the design and production and manufacturing efficiency is low, the building position is determined according to the widths of the cold and hot surfaces strictly during building, the construction difficulty is increased, and the construction time is long; 2. when the straight and wedge-shaped small refractory bricks are adopted to build the side wall of the ceramic cup, the straight bricks and the wedge-shaped bricks must be pre-built and processed in advance in a matching way according to different diameters of the hearth so as to determine the shape and the width of the proper door-closing bricks, the procedures increase the production time and the cost, and even if the pre-building and the processing are carried out, the pre-building size and the positions of the bricks cannot be reproduced when the blast furnace is built on site, the bricks at the positions of the doors still need to be measured and processed on site in the building construction of the blast furnace on site, so that the construction difficulty and the construction time are increased, and the adverse effect on the construction quality is brought; in the quasi-circular polygon brickwork of straight brick and wedge brick joining in marriage the building, straight brick lacks stability, and vibration and mechanical scouring in the smelting production make its aversion easily to influence the brickwork stability of ceramic cup lateral wall, and then influence the life of ceramic cup lateral wall. Therefore, we propose a special-shaped refractory brick for the side wall of a blast furnace ceramic cup and a combination method thereof to solve the problems mentioned in the background technology.
Disclosure of Invention
The invention aims to provide a special-shaped refractory brick for the side wall of a blast furnace ceramic cup and a combination method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a blast furnace pottery cup is special-shaped firebrick for lateral wall, includes special-shaped firebrick body, a side of special-shaped firebrick body is evagination arc (1), another side has indent arc (2), perhaps two sides of special-shaped firebrick body are evagination arc (1) or two sides all have indent arc (2).
Preferably, the width of the bottom edge of the convex arc (1) is the same as the thickness of the special-shaped refractory brick body.
Preferably, the width of the bottom edge of the concave arc (2) is smaller than the thickness of the special-shaped refractory brick body, and a plane is arranged between the two sides of the concave arc (2) and the hot surface (4) and the cold surface (5) of the special-shaped refractory brick body.
Preferably, the curvature radius of the concave arc (2) is equal to the sum of the curvature radius of the convex arc (1) and the width of the brick joint.
A combination method of special-shaped refractory bricks for the side wall of a blast furnace ceramic cup specifically comprises the following steps:
the side wall of the blast furnace ceramic cup is composed of special-shaped refractory brick bodies, one side surface of each special-shaped refractory brick body is an outer convex arc (1), and the other side surface of each special-shaped refractory brick body is provided with an inner concave arc (2), and the side surface of the outer convex arc (1) of each special-shaped refractory brick body extends into the side surface of the adjacent special-shaped refractory brick body, which is provided with the inner concave arc (;
or the side wall of the blast furnace ceramic cup is composed of a special-shaped refractory brick body with two convex arc-shaped side surfaces (1) and a special-shaped refractory brick body with two concave arc-shaped side surfaces (2), the special-shaped refractory brick body and the special-shaped refractory brick body are arranged alternately in the circumferential direction of the furnace hearth, and the side surface of the convex arc-shaped refractory brick body (1) of the special-shaped refractory brick body extends into the side surface of the adjacent special-shaped refractory brick body with the concave arc-shaped side;
or the side wall of the blast furnace ceramic cup is simultaneously combined by a refractory brick (I) with a convex arc (1) on one side and a concave arc (2) on the other side, a refractory brick (II) with a convex arc (1) on both sides and a refractory brick (III) with a concave arc (2) on both sides;
the side surface of the convex arc (1) of the refractory brick II extends into the side surface of the refractory brick III with the concave arc (2) adjacent to the side surface of the refractory brick III, the side surface of the convex arc (1) of the refractory brick I extends into the side surface of the refractory brick III with the concave arc (2) adjacent to the side surface of the refractory brick III or extends into the side surface of the refractory brick III with the concave arc (2) adjacent to the side surface of the refractory brick III, and the sum of the total number of the side surfaces of the convex arc (1) of all the refractory bricks II and the total number of the side surfaces of the convex arc (1) of all the refractory bricks I is equal to the sum of the total number of the side surfaces of the concave arc (2) of all the refractory bricks III and the.
The width of a brick joint between the convex arc surface (1) and the concave arc surface (2) is 1-5 mm.
Compared with the prior art, the invention has the beneficial effects that: the special-shaped refractory brick for the side wall of the ceramic cup of the blast furnace and the combination method thereof have universality, and the side walls of the ceramic cups with different hearth diameters can be built into a quasi-circular polygon by adopting the same brick type, so that the design and production manufacturing efficiency is improved, and the manufacturing cost of the refractory brick for the side wall of the ceramic cup is reduced; in the brickwork of the side wall of the blast furnace ceramic cup combined by the refractory bricks, the convex arc-shaped side surface of the refractory bricks extends into the concave arc-shaped side surface, and the left and right adjacent refractory bricks form an occlusion structure, so that the stability of the side wall of the ceramic cup is improved, and the danger of a smelting product passing through a masonry joint between the bricks is reduced; because the side of adjacent brick is the cambered surface of shape, size matching, can realize the good bonding between the resistant firebrick through the angle of rotatory fragment of brick when building in advance and building in the blast furnace scene, needn't measure, process and close a brick, improved work efficiency, can obtain better brickwork quality. The special-shaped refractory brick for the side wall of the blast furnace ceramic cup and the combination method thereof can obtain higher design, production, manufacture and construction efficiency, thereby improving the economic benefits of ceramic cup manufacturing enterprises and construction enterprises; the better stability and construction quality of the side wall of the ceramic cup have the advantages of prolonging the service life of the side wall of the ceramic cup of the blast furnace, namely the service life of the blast furnace, and enabling blast furnace iron-making enterprises to obtain obvious economic benefits.
Drawings
FIG. 1 is a schematic view of a shaped refractory brick body of the present invention having an outwardly convex curved side surface and an inwardly concave curved side surface;
FIG. 2 is a schematic view of a shaped refractory brick body of the present invention having two convex curved sides;
FIG. 3 is a schematic view of a shaped refractory brick body of the present invention having concave arcs on both sides;
FIG. 4 is a plan view of a partial schematic view of a side wall of a ceramic cup for a blast furnace according to a first embodiment of the present invention;
FIG. 5 is a schematic plan view of a partial side wall of a blast furnace ceramic cup according to a second embodiment of the present invention;
FIG. 6 is a schematic plan view of a ceramic cup for a blast furnace according to a third embodiment of the present invention.
In the figure, 1 is an outward convex arc shape, 2 is an inward concave arc shape, 3 is a plane, 4 is a hot surface, 5 is a cold surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
see fig. 1, 4.
The side wall of the blast furnace ceramic cup of the embodiment is composed of special-shaped refractory brick bodies, and the side surface of the convex arc (1) of each refractory brick body extends into the side surface of the adjacent special-shaped refractory brick body with the concave arc (2).
One side of the special-shaped refractory brick body is a convex arc-shaped (1) side, the other side of the special-shaped refractory brick body is a concave arc-shaped (2) side, the width of the bottom edge of the convex arc-shaped (1) side is equal to the thickness of the special-shaped refractory brick body, the width of the bottom edge of the concave arc-shaped (2) is smaller than the thickness of the special-shaped refractory brick body, a plane (3) is arranged between the two sides of the bottom edge of the concave arc-shaped (2) and the hot surface (4) and the cold surface (5) of the special-shaped refractory brick body, and the curvature radius of the concave arc-shaped (2) is equal.
The width of a brick joint between the convex arc (1) surface and the concave arc (2) surface is 2 mm.
Example two:
see fig. 2, 3 and 5.
The blast furnace ceramic cup lateral wall of this embodiment all has the dysmorphism firebrick body of indent arc (2) to make up jointly by the dysmorphism firebrick body that two sides were evagination arc (1) and two sides, and two kinds of dysmorphism firebrick bodies alternate in the furnace pot week and arrange, and the evagination arc (1) side of dysmorphism firebrick body stretches into in the side that has indent arc (2) of adjacent dysmorphism firebrick body.
The width of the bottom edge of the side surface of the convex arc (1) is the same as the thickness of the special-shaped refractory brick body;
the width of the bottom edge of the concave arc (2) is smaller than the thickness of the special-shaped refractory brick body, and a plane (3) is arranged between the two sides of the bottom edge of the concave arc (2) and the hot surface (4) and the cold surface (5) of the special-shaped refractory brick body;
the curvature radius of the concave arc (2) is equal to the sum of the curvature radius of the convex arc (2) and the width of the brick joint.
The width of a brick joint between the convex arc (1) surface and the concave arc (2) surface is 2.5 mm.
Example three:
see fig. 1, 2, 3 and 6.
The side wall of the ceramic cup is formed by combining refractory bricks (namely a special-shaped refractory brick body with one side surface being an outward convex arc (1) and the other side surface being an inward concave arc (2)), refractory bricks (namely a special-shaped refractory brick body with two side surfaces being outward convex arcs (1)) and refractory bricks (namely a special-shaped refractory brick body with two side surfaces being inward concave arcs (2));
the side surface of the convex arc (1) of the firebrick II extends into the side surface with the concave arc (2) of the firebrick I adjacent to the firebrick II, and the side surface of the convex arc (1) of the firebrick I extends into the side surface with the concave arc (2) of the firebrick III adjacent to the firebrick II or extends into the side surface with the concave arc (2) of the firebrick I adjacent to the firebrick II;
the sum of the total number of the side surfaces of the convex arcs (1) of all the refractory bricks and the total number of the side surfaces of the convex arcs (1) of all the refractory bricks is equal to the sum of the total number of the side surfaces of the concave arcs (2) of all the refractory bricks and the total number of the side surfaces of the concave arcs (2) of all the refractory bricks.
The width of a brick joint between the side surface of the convex arc (1) and the side surface of the concave arc (2) is 3 mm.
The width of the bottom edge of the convex arc (1) of the firebrick (I) is the same as the thickness of the firebrick (I), the width of the bottom edge of the concave arc (2) of the firebrick (I) is smaller than the thickness of the firebrick (I), a plane (3) is arranged between two sides of the bottom edge of the concave arc (2) of the firebrick (I) and a hot surface (4) and a cold surface (5) of the firebrick (I), and the curvature radius of the concave arc (2) of the firebrick (I) is equal to the sum of the curvature radius of the convex.
The width of the bottom edge of the convex arc (1) of the refractory brick II is the same as the thickness of the refractory brick II;
the width of the bottom edge of the concave arc (2) of the refractory brick (c) is smaller than the thickness of the refractory brick (c), and a plane (3) is arranged between the two sides of the bottom edge of the concave arc (2) of the refractory brick (c) and the hot surface (4) and the cold surface (5) of the refractory brick (c);
the curvature radius of the concave arc (2) of the refractory brick (III) is equal to the sum of the curvature radius of the convex arc (1) of the refractory brick (II) and the width of a brick joint.
In conclusion, compared with the prior art, the refractory brick has universality, and the side walls of the ceramic cups with different hearth diameters can be built into a quasi-circular polygon by adopting the same brick type, so that the design and production manufacturing efficiency is improved, and the manufacturing cost of the refractory brick for the side wall of the ceramic cup is reduced; in the brickwork of the side wall of the blast furnace ceramic cup combined by the refractory bricks, the convex arc-shaped side surface of the refractory bricks extends into the concave arc-shaped side surface, and the left and right adjacent refractory bricks form an occlusion structure, so that the stability of the side wall of the ceramic cup is improved, and the danger of a smelting product passing through a masonry joint between the bricks is reduced; because the side of adjacent brick is the cambered surface of shape, size matching, can realize the good bonding between the resistant firebrick through the angle of rotatory fragment of brick when building in advance and building in the blast furnace scene, needn't measure, process and close a brick, improved work efficiency, can obtain better brickwork quality. The special-shaped refractory brick for the side wall of the blast furnace ceramic cup and the combination method thereof can obtain higher design, production, manufacture and construction efficiency, thereby improving the economic benefits of ceramic cup manufacturing enterprises and construction enterprises; the better stability and construction quality of the side wall of the ceramic cup have the advantages of prolonging the service life of the side wall of the ceramic cup of the blast furnace, namely the service life of the blast furnace, and enabling blast furnace iron-making enterprises to obtain obvious economic benefits.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a blast furnace pottery cup lateral wall is with special-shaped resistant firebrick, includes special-shaped resistant firebrick body, its characterized in that: one side surface of the special-shaped refractory brick body is an outer convex arc (1), the other side surface of the special-shaped refractory brick body is an inner concave arc (2), or both side surfaces of the special-shaped refractory brick body are outer convex arcs (1) or both side surfaces of the special-shaped refractory brick body are inner concave arcs (2).
2. The special-shaped refractory brick for the side wall of the blast furnace ceramic cup as claimed in claim 1, wherein: the width of the bottom edge of the convex arc (1) is the same as the thickness of the special-shaped refractory brick body.
3. The special-shaped refractory brick for the side wall of the blast furnace ceramic cup as claimed in claim 1, wherein: the width of the bottom edge of the concave arc (2) is smaller than the thickness of the special-shaped refractory brick body, and a plane (3) is arranged between the two sides of the concave arc (2) and the hot surface (4) and the cold surface (5) of the special-shaped refractory brick body.
4. The special-shaped refractory brick for the side wall of the blast furnace ceramic cup as claimed in claim 1, wherein: the curvature radius of the concave arc (2) is equal to the sum of the curvature radius of the convex arc (1) and the width of a brick joint.
5. The method for assembling shaped refractory bricks for the sidewall of a ceramic cup for a blast furnace as claimed in claim 1, wherein: the method specifically comprises the following steps:
the side wall of the blast furnace ceramic cup is composed of special-shaped refractory brick bodies, one side surface of each special-shaped refractory brick body is an outer convex arc (1), and the other side surface of each special-shaped refractory brick body is provided with an inner concave arc (2), and the side surface of the outer convex arc (1) of each special-shaped refractory brick body extends into the side surface of the adjacent special-shaped refractory brick body, which is provided with the inner concave arc (;
or the side wall of the blast furnace ceramic cup is composed of a special-shaped refractory brick body with two convex arc-shaped side surfaces (1) and a special-shaped refractory brick body with two concave arc-shaped side surfaces (2), the special-shaped refractory brick body and the special-shaped refractory brick body are arranged alternately in the circumferential direction of the furnace hearth, and the side surface of the convex arc-shaped refractory brick body (1) of the special-shaped refractory brick body extends into the side surface of the adjacent special-shaped refractory brick body with the concave arc-shaped side;
or the side wall of the blast furnace ceramic cup is simultaneously combined by a refractory brick (I) with a convex arc (1) on one side and a concave arc (2) on the other side, a refractory brick (II) with a convex arc (1) on both sides and a refractory brick (III) with a concave arc (2) on both sides;
the side surface of the convex arc (1) of the refractory brick II extends into the side surface of the refractory brick III with the concave arc (2) adjacent to the side surface of the refractory brick III, the side surface of the convex arc (1) of the refractory brick I extends into the side surface of the refractory brick III with the concave arc (2) adjacent to the side surface of the refractory brick III or extends into the side surface of the refractory brick III with the concave arc (2) adjacent to the side surface of the refractory brick III, and the sum of the total number of the side surfaces of the convex arc (1) of all the refractory bricks II and the total number of the side surfaces of the convex arc (1) of all the refractory bricks I is equal to the sum of the total number of the side surfaces of the concave arc (2) of all the refractory bricks III and the.
6. The method for assembling the special-shaped refractory bricks for the side wall of the blast furnace ceramic cup as claimed in claim 5, wherein the method comprises the following steps: the width of a brick joint between the convex arc (1) surface and the concave arc (2) surface is 1-5 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011431269.7A CN112458219A (en) | 2020-12-07 | 2020-12-07 | Special-shaped refractory brick for side wall of blast furnace ceramic cup and combination method thereof |
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| CN202011431269.7A CN112458219A (en) | 2020-12-07 | 2020-12-07 | Special-shaped refractory brick for side wall of blast furnace ceramic cup and combination method thereof |
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| CN204325222U (en) * | 2014-11-15 | 2015-05-13 | 马钢(集团)控股有限公司 | One is dry puts out ring type air flue masonry |
| US20190310018A1 (en) * | 2009-07-08 | 2019-10-10 | Macrae Technologies, Inc. | Furnace bricks, coolers, and shells/bindings operating in systemic balance |
| CN209566287U (en) * | 2018-09-20 | 2019-11-01 | 宜兴市佳信数控科技有限公司 | A kind of high temperature resistant abnormal shape fire resisting radian brick mold |
| CN111549191A (en) * | 2020-06-29 | 2020-08-18 | 北京瑞尔非金属材料有限公司 | Blast furnace hearth ceramic cup side wall formed by inlaid bonded refractory brick rings |
| CN111607675A (en) * | 2020-06-29 | 2020-09-01 | 北京瑞尔非金属材料有限公司 | Blast furnace hearth ceramic cup side wall with embedded structure |
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2020
- 2020-12-07 CN CN202011431269.7A patent/CN112458219A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190310018A1 (en) * | 2009-07-08 | 2019-10-10 | Macrae Technologies, Inc. | Furnace bricks, coolers, and shells/bindings operating in systemic balance |
| US20110247535A1 (en) * | 2010-04-12 | 2011-10-13 | Yong Lee | Insulation brick |
| CN201974053U (en) * | 2011-02-16 | 2011-09-14 | 无锡兴达节能科技股份有限公司 | Brick for blast furnace |
| CN104059694A (en) * | 2014-06-30 | 2014-09-24 | 内蒙古华星新能源有限公司 | Furnace body structure of pressurized gasifier |
| CN204325222U (en) * | 2014-11-15 | 2015-05-13 | 马钢(集团)控股有限公司 | One is dry puts out ring type air flue masonry |
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| CN111549191A (en) * | 2020-06-29 | 2020-08-18 | 北京瑞尔非金属材料有限公司 | Blast furnace hearth ceramic cup side wall formed by inlaid bonded refractory brick rings |
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Application publication date: 20210309 |