CN207811781U - A kind of Blast Furnace Bottom completely spreads charcoal brick structure - Google Patents
A kind of Blast Furnace Bottom completely spreads charcoal brick structure Download PDFInfo
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- CN207811781U CN207811781U CN201721640594.8U CN201721640594U CN207811781U CN 207811781 U CN207811781 U CN 207811781U CN 201721640594 U CN201721640594 U CN 201721640594U CN 207811781 U CN207811781 U CN 207811781U
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Abstract
A kind of Blast Furnace Bottom completely spreads charcoal brick structure, belongs to blast furnace hearth and bottom masonry construction technical field.Center line is built by laying bricks or stones including master, it is auxiliary to build center line, first kind brick fuel, the second class brick fuel, third class brick fuel by laying bricks or stones.It is main and auxiliary to build the equal overfill paving brick fuel theory center of circle of center line by laying bricks or stones and be mutually perpendicular to.Completely paving brick fuel can integrally be divided into four and build center line symmetrical region by laying bricks or stones along main and auxiliary.In addition to one piece of third class charcoal brick masonry, outer first kind brick fuel substantially completely spreads a wherein side region along 45 ° of line both sides on 45 ° of lines in each area, and the second class brick fuel has substantially completely spread another side region.Advantage is：Full paving charcoal brick layer any point is greatly reduced and builds on centerline direction brickwork joint quantity by laying bricks or stones and master builds centerline direction flash heat transfer distance by laying bricks or stones auxiliary, heat is realized in full paving charcoal brick layer at any point in two-dimensional level face, the multipath of three-dimensional spatial area nearby, quickly transmits, it is effectively improved furnace bottom heat transfer conditions, circumferential, radially uniform symmetrical temperature field is formed, the life of the blast furnace is improved.
Description
Technical field
The utility model belongs to blast furnace hearth and bottom masonry construction technical field, more particularly to a kind of Blast Furnace Bottom is completely spread
Charcoal brick structure is suitable for any Blast Furnace Bottom for holding grade and completely spreads charcoal brick masonry.
Background technology
Operating mode region the most severe when blast furnace hearth and bottom region is operation of blast furnace.Cupola well refractory furnace bottom is because of molten hot metal
It washes away, aoxidize and the chemical erosions such as slag, alkali metal cause that cupola well furnace bottom is circumferential, the radial and vertical residual thickness of resistance to material is uneven
And part is insufficient, crisis blast furnace is normally kept the safety in production.Under existing refractory technology, blast furnace hearth and bottom region refractory material
Which kind of masonry construction form the temperature field of cupola well furnace bottom uniformly, quick, effectively cooling is realized using, is slowed down and is washed away, aoxidizes, invading
Erosion, it is all ironmaking worker's focus of attention all the time to extend the life of the blast furnace.
The brick fuel that Blast Furnace Bottom uses is generally rectangular shape.From geometric dimension, length is significantly greater than wide or thick
The geometric dimension of degree, i.e. length are more than brick fuel sectional dimension.From geometrical relationship, length direction is vertical with section.Both at home and abroad
The common section specification of Blast Furnace Bottom brick fuel is 400X400,500X500,600X600 etc..
Currently, furnace bottom, which completely spreads charcoal brick masonry, following two structure types.First, brick fuel laid on end, i.e. the section of brick fuel is in
Level, length direction are in vertical.Specific masonry construction is completely paving charcoal brick layer except the brick fuel level close to completely paving geometry round edge is built
Outside building, remaining region i.e. central area brick fuel are to build by laying bricks or stones vertically.Such structure is based on monolithic brick fuel heat transfer all directions
The theory of anisotropic (i.e. the thermal coefficient of brick fuel length direction is more than the thermal coefficient of cross-wise direction) is built, it is intended that allows Blast Furnace Bottom
The heat that charcoal brick layer transmits blast furnace ladle heel layer central area is quickly transmitted to furnace bottom, weakens radial level heat transfer, enhancing
Furnace bottom cooling effect mitigates furnace bottom area side wall cooling system thermic load pressure.But with being constantly progressive for brick fuel production technology,
The difference of monolithic brick fuel heat conduction each side anisotropy is gradually reducing, and brick fuel height, that is, length of laid on end also should not be very long, generally
800mm high, if long, the hot structural stability of brick fuel of laid on end is poor, and laid on end is high to brick fuel requirement on machining accuracy itself in addition, at
This is higher, and construction is cumbersome, and completely radially brickwork joint is large number of in horizontal cross-section for paving charcoal brick layer, and thermal coefficient is low at brickwork joint, weak
The performance of furnace bottom area side wall cooling system spatial integration effect is changed.
Second is that brick fuel level is built by laying bricks or stones, i.e., the length direction of brick fuel is in level, and cross-wise direction is in vertical.Specifically build knot by laying bricks or stones
Structure, which is every layer of completely paving brick fuel, has a master to build center line by laying bricks or stones, one it is auxiliary build center line by laying bricks or stones, major-minor center line of building by laying bricks or stones is mutually perpendicular to.Same layer charcoal
Brick except auxiliary brickwork center line by completely spread at geometry round edge the brick fuel center line built by laying bricks or stones with it is auxiliary build centerline parallel by laying bricks or stones in addition to, remaining brick fuel
Its center line builds center line by laying bricks or stones each parallel to master when building by laying bricks or stones.Such structure type processes processing with respect to for laid on end to brick fuel itself
Required precision is low, and cost is relatively low, construction is simple.From the point of view of heat transfer, every layer of Blast Furnace Bottom completely spreads brick fuel and is built by laying bricks or stones for level, absolutely
Most of brick fuel centerline parallels build center line by laying bricks or stones in master, completely spread charcoal brick layer takes up an official post how a little build centerline direction heat transfer by laying bricks or stones along main
Comparatively fast.Opposite laid on end structure, level is built by laying bricks or stones to be dominant in radial heat transfer, is especially built by laying bricks or stones on centerline direction along master.It is existing
Completely to spread brick fuel for the general furnace bottom of blast furnace be 4-5 layer, and every layer of equal reasonable disposition good brick fuel of thermal conductivity compares brickwork joint for laid on end
At more 2-3, in view of the monolithic brick fuel built by laying bricks or stones of level, heat fast transmits so that heat can be by downward transmit in the horizontal direction
The area that widens one's influence is walked, is conducive to furnace bottom cooling, therefore opposite laid on end structure, level are built by laying bricks or stones in vertical direction heat transfer brothers
Between.Such form deficiency of building by laying bricks or stones is that every layer of completely paving brick fuel is more in auxiliary centerline direction brickwork joint quantity of building by laying bricks or stones, brickwork joint heat conduction
Coefficient is low, influences the heat transfer rate of the direction；And it is quick in main direction heat transfer of building by laying bricks or stones, and main to build centerline direction by laying bricks or stones any
A little all have wherein one to distance farther out, it is relatively blunt in establishing circumferential, radially uniform, symmetrical temperature field in furnace bottom.
The characteristics of brick fuel masonry construction form is completely spread in view of above two furnace bottom and deficiency, it is proposed that a kind of Blast Furnace Bottom is full
Spread brick fuel masonry construction and building method, it is intended that completely spreading in brick fuel at any point heat in furnace bottom, multipath is just radially
Closely, it fast, symmetrically transmits, is effectively improved the heat transfer conditions of furnace bottom, and then establish circumferential, radial symmetric temperature field, extend height
Furnace li`.
Invention content
The utility model aim is to provide a kind of Blast Furnace Bottom and completely spreads brick fuel masonry construction.Overcome above two furnace bottom
Completely spread the deficiency of brick fuel masonry construction form.The utility model is built by laying bricks or stones using brick fuel level, by changing original same layer monolithic charcoal
Pattern of rows and columns of brick extends the life of the blast furnace to be effectively improved the hot biography situation that furnace bottom completely spreads every layer of brick fuel.
The utility model includes that master builds center line by laying bricks or stones, auxiliary to build center line, first kind brick fuel, the second class brick fuel, third class by laying bricks or stones
Brick fuel.It is main and auxiliary to build the equal overfill paving brick fuel theory center of circle of center line by laying bricks or stones and be mutually perpendicular to.First kind brick fuel is completely to spread in charcoal brick structure
Brick fuel length direction and the main brick fuel for building centerline parallel by laying bricks or stones；Second class brick fuel be completely spread charcoal brick structure in brick fuel length direction with
The auxiliary brick fuel for building centerline parallel by laying bricks or stones；Vertical projection is in close when third class brick fuel is built by laying bricks or stones for its brick fuel level in completely paving charcoal brick structure
The brick fuel of triangle.First kind brick fuel section is identical with the second class brick fuel section.It should be noted that first kind brick fuel and
The division of two class brick fuels is divided according to main and auxiliary center line of building by laying bricks or stones.It is main to build center line usually completely paving brick fuel structure level throwing by laying bricks or stones
Transverse horizontal line on shadow face.Auxiliary center line of building by laying bricks or stones is completely to spread longitudinal vertical line on brick fuel structure level perspective plane.It is main and auxiliary to build by laying bricks or stones
Heart line can be interchanged, and completely spreads brick fuel overall structure and is rotated by 90 ° for original structure.
The completely paving equal level of brick fuel is built by laying bricks or stones, and a line first kind charcoal brick masonry is built by laying bricks or stones in master on center line, and the row first kind charcoal is made
Brick floor projection upper edge is main and auxiliary, and to build center line by laying bricks or stones symmetrical.One row the second class charcoal brick masonry is built by laying bricks or stones in auxiliary on center line, this is made to arrange
To build center line by laying bricks or stones symmetrical along main and auxiliary respectively in two class brick fuel floor projections.It is main and auxiliary to build first kind brick fuel and second on center line by laying bricks or stones
First kind brick fuel length direction side is built on class brick fuel intersection the second class brick fuel section top or first kind brick fuel section top builds second
Class brick fuel length direction side.Completely to build center line by laying bricks or stones symmetrical along main and auxiliary for paving brick fuel overall structure floor projection.Completely paving brick fuel is whole
It can be four and build center line symmetrical region by laying bricks or stones along main and auxiliary.The first kind brick fuel other than one block of third class brick fuel in each area
Substantially full paving a wherein side region, second class brick fuel along 45 ° of (or 135 ° or 225 ° or 315 °) line both sides are substantially completely spread
Another side region.Brick fuel is completely spread along 45 ° of (or 135 ° or 225 ° or 315 °) near symmetricals in each region.
The utility model concrete structure is as follows：In each area center line is built by laying bricks or stones along auxiliary since master builds center line by laying bricks or stones
One side direction, close to first kind brick fuel N rows are built by laying bricks or stones, (without first kind brick fuel on center line is built by laying bricks or stones, N, which is the region, to build by laying bricks or stones successively
The maximum value of first kind brick fuel row), number consecutively is 1 to N rows；Since it is auxiliary build center line by laying bricks or stones along master build center line side by laying bricks or stones
Direction, close to the second class brick fuel N row are built by laying bricks or stones, (without building the second class brick fuel on center line by laying bricks or stones, N, which is the region, can build the by laying bricks or stones successively
The maximum value of two class brick fuels row), number consecutively is 1 to N row.All same sequence number row and column first kind brick fuels and the second class brick fuel
Intersection, if first kind brick fuel length direction side is built on main and auxiliary center line intersection the second class brick fuel section top of building by laying bricks or stones, first
Class brick fuel and the second class brick fuel intersection are that the second class brick fuel section top is built in first kind brick fuel length direction side；Otherwise i.e.
It is main and auxiliary when building center line intersection first kind brick fuel section top by laying bricks or stones and building the second class brick fuel length direction side, then first kind brick fuel
It is that first kind brick fuel section top is built in the second class brick fuel length direction side with the second class brick fuel intersection.Only have in each region
One block of third class brick fuel is placed on 45 ° of each region (or 135 ° or 225 ° or 315 °) direction and completely spreads brick fuel theory the edge of the circle
Place.The both sides of third class brick fuel are pushed up respectively builds in the long side side of the long side side of first kind brick fuel and the second class brick fuel.
The utility model realization principle is that completely paving brick fuel level is built by laying bricks or stones, and structure is symmetrical along main and auxiliary center line of building by laying bricks or stones, can divide
At 4 identical regions.Each region is substantially symmetrical along 45 ° of (or 135 ° or 225 ° or 315 °) lines.Completely spread brick fuel
It is this to greatly reduce any point on full paving brick fuel tradition masonry construction along multi-thread symmetrical structure and build centerline direction by laying bricks or stones auxiliary
Upper brickwork joint quantity, greatly improves any point heat transfer conditions on full paving brick fuel, i.e., any point (position on each region
X rows or X row) heat can (X be 1~N by X residing for the point and X+i rows；I is 1~(N-X)) or (and) X
And (X is 1~N to X+i row；I is 1~(N-X)) first kind brick fuel and the second class brick fuel length direction quickly completely spread charcoal to the region
The edge transfer (heat transfer distances respectively less than completely spread radius) of brick, to realize the heat maximum that single layer completely spreads each region of brick fuel
Degree completely spreads nearby, symmetrically, quickly transmitting for brick fuel edge to the region；It is brick according to full paving charcoal when multilayer completely spreads brick fuel
Special angle (30 °~45 °) need to be rotated by building the adjacent full laying of code requirement, then is in the point on upper layer by transmitting heat downwards
Completely spreading the certain point of brick fuel to corresponding lower layer, it is identical that the heat transfer of this point completely spreads each region point heat transfer of brick fuel with aforementioned single layer,
To formed stereoscopic three-dimensional spatially any point to the edges Man Pu nearby, symmetrically, the structural system of flash heat transfer, be conducive to blast furnace
Cupola well furnace bottom cooling system three dimensions effectively plays, and establishes circumferential, radially uniform symmetrical furnace bottom and completely spreads brick fuel temperature field, into
And extend the life of the blast furnace.
The utility model has following features：
1, brick fuel level is built by laying bricks or stones；
2, completely paving charcoal brick masonry set it is main and auxiliary build center line by laying bricks or stones, and main and auxiliary build the center line equal overfill paving brick fuel theory center of circle by laying bricks or stones
And it is mutually perpendicular to；Completely main and auxiliary to build center line by laying bricks or stones symmetrical in floor projection upper edge for paving brick fuel overall structure；Completely paving brick fuel entirety edge
45 ° of (or 135 ° or 225 ° or 315 °) near symmetricals.
3, parallel build by laying bricks or stones of first kind brick fuel builds center line by laying bricks or stones in master, and wherein a line first kind brick fuel is built by laying bricks or stones along its length
It is built by laying bricks or stones on center line in master, i.e., it is symmetrical to build center line by laying bricks or stones along master；
4, parallel along its length build by laying bricks or stones of the second class brick fuel builds center line by laying bricks or stones in auxiliary, and wherein the second class of row brick fuel is along long
Degree direction is built by laying bricks or stones and is built by laying bricks or stones on center line auxiliary, i.e., to build center line by laying bricks or stones symmetrical along auxiliary；
5, the first kind brick fuel of same sequence number row and column and the second class brick fuel are being mutually perpendicular to, and in intersection the second class charcoal
Brick section top, which is built, builds in first kind brick fuel length direction side or first kind brick fuel section top in the second class brick fuel length direction
Side.
6, it completely spreads third class brick fuel in charcoal brick structure and shares 4 pieces；
7, first kind brick fuel section is identical as the second class brick fuel section；
8, the both sides length of side of triangle is isometric in third class brick fuel floor projection, and is not less than 300mm.
The utility model advantage is：Monolithic brick fuel pattern of rows and columns in charcoal brick structure is completely spread by changing, is avoided original
Completely to build brickwork joint present on centerline direction by laying bricks or stones excessive auxiliary for paving charcoal brick layer any point, and main to build center line side heat transfer distances by laying bricks or stones remote
The deficiencies of, realize in full paving charcoal brick layer that heat is in two-dimensional level face at any point, the multipath of three-dimensional spatial area is nearby, soon
Speed is transmitted, and the heat transfer conditions of furnace bottom are effectively improved, and is conducive to the performance of furnace bottom bottom and side cooling space effect, and then formed
Circumferential, radially uniform symmetrical temperature field, improves the life of the blast furnace.The extension of the life of the blast furnace meet it is energy saving, consumption reduction, it is highly efficient and productive
Requirement.Blast furnace often extend 1 year all by reduced for enterprise at least 5,000,000 fund for major overhaul sunk cost, for enterprise create at least
87500000 profits (press 1000m3Blast furnace is calculated).In addition it is low to monolithic brick fuel requirement on machining accuracy completely to spread brick fuel for the utility model,
Cost is relatively low, and once investment is not high for blast furnace, and it is simple to expire paving brick fuel structure construction, it is easy to accomplish.
Description of the drawings
Fig. 1 is that traditional Blast Furnace Bottom completely spreads brick fuel structural schematic diagram.Wherein, it is main build by laying bricks or stones center line 1, auxiliary brickwork center line 2,
Brick fuel 3.
Fig. 2 is that the utility model Blast Furnace Bottom completely spreads brick fuel structural schematic diagram.Wherein, master builds by laying bricks or stones in center line 1, auxiliary brickwork
Heart line 2, first kind brick fuel 3, the second class brick fuel 4, third class brick fuel 5.
Specific implementation mode
The utility model is further illustrated in conjunction with attached drawing.
From figure 1 it will be seen that traditional blast furnace is completely spread in brick fuel masonry way, most brick fuels 3 are parallel along its length
1 level of center line is built by laying bricks or stones in master to build by laying bricks or stones, is only had a row to be parallel to auxiliary center line 2 of building by laying bricks or stones at the auxiliary both ends for building center line 2 by laying bricks or stones and is built
The brick fuel 3 built.From the figure, it can be seen that completely paving brick fuel it is auxiliary build by laying bricks or stones brickwork joint quantity on 2 direction of center line be probably master build by laying bricks or stones
4-5 times of brickwork joint quantity on centerline direction.Completely paving brick fuel builds center line 1 by laying bricks or stones along master and auxiliary center line 2 of building by laying bricks or stones is symmetrical, completely spreads charcoal
Brick is divided into 4 regions.In terms of each region, it is auxiliary build by laying bricks or stones brickwork joint quantity on 2 direction of center line will probably be master build center line side by laying bricks or stones
8-10 times of upward brickwork joint quantity.Design brickwork joint is generally not greater than 1mm.Each face of brick fuel, which is smeared, when completely spreading charcoal brick masonry builds mud by laying bricks or stones
Close to building by laying bricks or stones after slurry, i.e., theoretically by building the full filling of mud by laying bricks or stones in the vertical seam between brick fuel.Build the thermal coefficient of mud by laying bricks or stones not
More than 3W/ (mK), belong to low thermal conductivity refractory material, far below domestic high-quality brick fuels such as current ultramicropore, microporous carbon bricks
Thermal coefficient 16-20W/ (mK), brick fuel is practical in addition build by laying bricks or stones after block is likely to occur between brickwork joint in baker, actual production
It builds mud loss and then generates the air gap thermal resistance of bigger, it is seen that the brickwork joint the more more are unfavorable for the transmission of heat, therefore traditional high
Stove completely spreads on brick fuel masonry construction certain point heat and mainly will build center line 1 by laying bricks or stones along main and transmit.Centerline direction is built by laying bricks or stones in view of auxiliary
Brickwork joint is too many, which is only capable of building center line by laying bricks or stones along main in adjacent several rows and quickly transmitting, and builds center line side by laying bricks or stones auxiliary
It builds center line by laying bricks or stones and is about to undertake less heat transfer to and far from the master of the point.For each region, the main heat of the point
Amount is only built center line 1 by laying bricks or stones along master and is transmitted nearby to the edges Man Pu, and builds 2 direction of center line by laying bricks or stones in region aids and transmit a small amount of heat
Amount, region is symmetrical along 45 ° of (or 135 ° or 225 ° or 315 °) space of lines, but there are serious asymmetry for heat transfer, this is unfavorable
Circumferential, radially uniform, the symmetrical temperature field in being formed, is also more likely to respect to other regions to these regions of cupola well furnace bottom,
More easily there is abnormal erosion in these regions.
It can see using Fig. 2 of the utility model, completely spread brick fuel and builds center line 1 by laying bricks or stones along main, auxiliary to build center line 2 by laying bricks or stones right
Claim, at the same time along 45 ° or 135 ° of near symmetricals.Completely paving brick fuel region is divided into 4 completely the same regions.Each region edge
45 ° (or 135 ° or 225 ° or 315 °) also near symmetrical.No matter from whole region or in terms of each region, brick fuel is completely spread along main
Brickwork joint quantity and the auxiliary brickwork joint quantity for building center line 2 by laying bricks or stones for building center line 1 by laying bricks or stones are all less and suitable.It is full for each region
On paving brick fuel heat of certain arbitrary point can along it is main build by laying bricks or stones center line 1 and it is auxiliary build center line 2 by laying bricks or stones and transmitted nearby to the edges Man Pu, heat
Amount transmission is symmetrical along 45 ° of (or 135 ° or 225 ° or 315 °) lines, this advantageously forms circumferential direction, radially uniform, symmetrical temperature field,
It is conducive to extend cupola well refractory furnace bottom service life, the life of the blast furnace.It can find out that furnace volume is bigger from Fig. 2, completely spread brick fuel theoretical diameter
Bigger, above-mentioned advantage is more prominent.
Claims (4)
1. a kind of Blast Furnace Bottom completely spreads charcoal brick structure, which is characterized in that build center line (1) by laying bricks or stones including master, it is auxiliary to build center line by laying bricks or stones
(2), first kind brick fuel (3), the second class brick fuel (4), third class brick fuel (5)；First kind brick fuel (5) is completely to spread charcoal in charcoal brick structure
Brick length direction and the main brick fuel that build center line (1) by laying bricks or stones parallel；Second class brick fuel (4) is completely to spread brick fuel length side in charcoal brick structure
To with the auxiliary brick fuel that build center line (2) by laying bricks or stones parallel；Third class brick fuel (3) is in nearly three completely to spread brick fuel floor projection in charcoal brick structure
Angular brick fuel；Completely paving brick fuel it is whole along it is main build by laying bricks or stones center line (1) and it is auxiliary build center line (2) by laying bricks or stones be divided into 4 regions, each
In region other than one piece of third class brick fuel (5) is built by laying bricks or stones on 45 ° or 135 ° or 225 ° or 315 ° of lines, first kind brick fuel (3) is full
Paving a wherein side region, second class brick fuel (4) along 45 ° or 135 ° or 225 ° or 315 ° of line both sides have completely spread another side region.
2. structure according to claim 1, it is characterised in that：First kind brick fuel (3), the second class brick fuel (4), third class charcoal
Brick (5) level is built by laying bricks or stones；First kind brick fuel (3) section is identical as the second class brick fuel (4) section；Third class brick fuel (5) is horizontal to be thrown
Shadow is isometric in the nearly triangle both sides length of side, and is not less than 300mm；It completely spreads third class brick fuel (5) in charcoal brick structure and shares 4 pieces.
3. structure according to claim 1, it is characterised in that：Completely paving charcoal brick masonry sets master and builds center line (1) by laying bricks or stones, auxiliary to build by laying bricks or stones
Center line (2), and master builds center line (1) by laying bricks or stones and auxiliary center line (2) overfill of building by laying bricks or stones spreads the brick fuel theory center of circle and is mutually perpendicular to；It is full
Paving brick fuel overall structure builds center line (1) by laying bricks or stones in floor projection upper edge master and auxiliary center line (2) of building by laying bricks or stones is symmetrical；Completely paving brick fuel is whole
Structure is symmetrical along 45 ° or 135 ° or 225 ° or 315 °.
4. structure according to claim 1, it is characterised in that：The first kind brick fuel (3) of same sequence number row and column and second
Class brick fuel (4) is mutually perpendicular to, and is built in first kind brick fuel (3) length direction side on intersection the second class brick fuel (4) section top
Or first kind brick fuel (3) section top is built in second class brick fuel (4) length direction side.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107739764A (en) * | 2017-11-30 | 2018-02-27 | 北京首钢国际工程技术有限公司 | A kind of Blast Furnace Bottom completely spreads brick fuel structure and building method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107739764A (en) * | 2017-11-30 | 2018-02-27 | 北京首钢国际工程技术有限公司 | A kind of Blast Furnace Bottom completely spreads brick fuel structure and building method |
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