CN107586908B - Lattice brick bears the extra-column of metal device, lattice brick bears metal device and column adding method - Google Patents
Lattice brick bears the extra-column of metal device, lattice brick bears metal device and column adding method Download PDFInfo
- Publication number
- CN107586908B CN107586908B CN201710417047.1A CN201710417047A CN107586908B CN 107586908 B CN107586908 B CN 107586908B CN 201710417047 A CN201710417047 A CN 201710417047A CN 107586908 B CN107586908 B CN 107586908B
- Authority
- CN
- China
- Prior art keywords
- column
- mentioned
- metal device
- extra
- wedge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
Extra-column (50) is set between the grid metal device (20) and furnace bottom face (21) for bearing the lattice brick of hot-blast stove, has column main body (51), top metal device (52) and wedge metal device (53).Top metal device (52) is configured on column main body (51) and the sub- metal device of dative (20) abuts.Wedge metal device (53) is driven between column main body (51) and top metal device (52).Wedge metal device (53), the face that is abutted at least one party among column main body (51) and top metal device (52) be formed as the inclined inclined surface of relatively horizontal orientation.
Description
Technical field
The present invention relates to hot-blast stoves, more particularly to the lattice brick supported to the indoor lattice brick of the accumulation of heat of hot-blast stove bears gold
Belong to the extra-column of device, lattice brick bears metal device and column adding method.
Background technique
In the past, hot-blast stove was used as the equipment to the blast furnace supply hot wind of ironmaking.
Hot-blast stove is provided with multiple (3~5) according to every seat height furnace, which is set as, in multiple hot-blast stoves
Any hot-blast stove carry out accumulation of heat, and carry out the warm-air supply to blast furnace with other hot-blast stoves, so as to blast furnace in a steady stream
Hourly supply hot wind.
Hot-blast stove has combustion chamber and regenerative chamber, and the lattice brick of accumulation of heat is laminated in regenerative chamber.In the bottom surface of hot-blast stove
Be provided with lattice brick for supporting lattice brick and bear metal device, be connected with pipeline in the lower side of hot-blast stove, so as to than lattice
Brick bears the space connection of metal device more on the lower.
An example of metal device is born as lattice brick, it is known to bear metal device as follows: in the bottom surface of hot-blast stove
It erects pillar (support frame), with the pillar supporting horizontal beam (crossbeam (corresponding Japanese: グ レ ー ト beam)), in the upper of the horizontal beam
Surface side hangs up grid metal device and forms (document 1: Japanese Unexamined Patent Application 51-20004 bulletin reference).Lattice brick is by grid
The upper surface side of metal device is born.The identical aperture of through hole of dative brick is equipped in grid metal device.In grid metal
Ventilation space is formed between the lower surface of device and the bottom surface of hot-blast stove.Ventilation space is connected to above-mentioned pipeline.Structure as a result,
As can dative brick, grid metal device, ventilation space and pipeline ventilate.
When carrying out accumulation of heat to hot-blast stove, hot wind that plaid matching brick is heated from the through hole of the lattice brick of most junior downward
It sprays, after ventilation space concentration, is discharged from pipeline towards external.
To blast furnace supply hot wind when, from pipeline to ventilation space import outer gas, backward lattice brick each through hole distribute,
Assigned outer gas is heated during passing through lattice brick, is sent out as hot wind to blast furnace.
But from the blast furnace that hot-blast stove is fed with hot wind, as the reducing material of iron ore and for melting
Heat source and need coke.Coke consumption amount can be cut down and carrying out high temperature to the hot blast temperature from hot-blast stove, due to
It is related to the reduction of operating cost, therefore, it is desirable to carry out high temperature to the hot wind supplied from hot-blast stove to blast furnace.
As noted above, the heat that there is the high temperature of enough heats in order to become the hot wind supplied from hot-blast stove to blast furnace
Wind needs to increase the heat (amount of stored heat) of the lattice brick institute accumulation of heat of hot-blast stove, needs to improve the temperature especially bottom surface temperature of lattice brick.
But when above-mentioned lattice brick receiving metal device becomes heat resisting temperature or more, it may occur that lattice brick bears gold
Belong to device failure, lattice brick collapse and hot-blast stove operation stop the case where.Therefore, the heat of the atmosphere temperature of hot-blast stove furnace bottom is determined
The upper limit value of wind furnace delivery temperature bears the heat resisting temperature of metal device by lattice brick to determine.
Therefore, when supplying hot wind to blast furnace, the hot wind of heating when accumulation of heat is limited to lattice brick and bears metal device
Partial heat resisting temperature is hereinafter, the upper limit of the heat-retaining capacity of lattice brick is limited.As a result, cannot make to blast furnace supply hot wind into
One step becomes high temperature.
Here, considering higher by the way that the lattice brick receiving metal device for the hot-blast stove being set is changed to heat resisting temperature
Lattice brick bears metal device, carrys out the upper limit of the heat-retaining capacity of the Upgrade Lattice brick.
But metal device is born in order to replace lattice brick, carry out large-scale replacement/transformation including lattice brick
Engineering.If carrying out the engineering, during needing the long-term operation such as 1 year or more to stop, furnace processor is reduced.
Corresponding as other high temperatures, consideration has the case where adding the pillar that the sub- metal device of plaid matching is supported.?
When adding pillar, it can be improved the intensity that lattice brick bears metal device, can be realized the raising of heat resisting temperature.
But the height dimension of the pillar of installation is adjusted and is difficult, it, cannot when being unable to adjust height dimension
Keep pillar corresponding with the height dimension until the lower surface for playing grid metal device from furnace bottom face.Accordingly, it is difficult to suitably right
Grid metal device is supported.
Summary of the invention
The object of the present invention is to provide a kind of lattice bricks to bear the extra-column of metal device, lattice brick bears metal device and
Column adding method can increase the amount of stored heat of lattice brick and corresponding with high temperature, can cut down operating cost, and realize the duration
Shorten.
The extra-column that lattice brick of the invention bears metal device is set to the grid metal device for bearing the lattice brick of hot-blast stove
Between part and furnace bottom face, which is characterized in that have: column main body has the multiple column components stacked in the height direction；Top gold
Belong to device, is configured in above-mentioned column main body and is abutted with above-mentioned grid metal device；And height regulating mechanism, it is set to above-mentioned
Between column main body and above-mentioned top metal device, between the midway of above-mentioned column main body or above-mentioned column main body and above-mentioned furnace bottom face,
Above-mentioned top metal device has slit, which is configured at position corresponding with the venthole of above-mentioned grid metal device, makes
Gas from the venthole is ventilated to the side of the top metal device.
Lattice brick according to the present invention bears the extra-column of metal device, can with subsequent sequence by extra-column add in
Lattice brick bears metal device.
Firstly, column main body is stood up furnace bottom face, top metal device is placed in the column main body.At this point, with
Height regulating mechanism is set in advance between top metal device, between column main body or between column main body and furnace bottom face.Utilize this
Height regulating mechanism, the height dimension until the lower surface of grid metal device can be played with the furnace bottom face from hot-blast stove are corresponding
Ground adjusts the column height dimension of extra-column, abuts the sub- metal device of top metal device dative, can support grid securely
Metal device.
Extra-column can be added as described above, it is therefore not necessary to which carrying out replacement lattice brick bears the large-scale of metal device
Replacement/improvement project is able to suppress the reduction of furnace processor during not needing long-term operation stopping.
In addition, can be improved the intensity that lattice brick bears metal device, heat resisting temperature is improved, the accumulation of heat of lattice brick can be increased
Amount.In turn, by increasing amount of stored heat, so as to carry out high temperature to the hot wind from hot-blast stove to blast furnace, coke can be reduced,
Operating cost can be cut down.
In the present invention, column main body is integrally divided into multiple column components with respect to the column main body smaller, it can be only respectively
On the spot convey each column component.Thus, for example, even if the opening that the ventilation space between grid metal device and furnace bottom face passes through
Straitly be formed as the degree that column main body overall time cannot be moved in, it also can be by multiple column components separately from opening
Mouth is moved in ventilation space.In addition, with column main body integrally compared with, column component monomer is small-sized and light weight, therefore, is easy to carry out by people
The progress such as hand are moved in.
In the present invention, slit, therefore, energy are formed in the top metal device that the lower surface of the sub- metal device of dative abuts
Enough reduce the occlusion locations of the venthole of grid metal device.Thereby, it is possible to reduce the gas stream hindered by top metal device
It is dynamic.
In addition, lattice brick of the invention, which bears metal device, for example has the sub- metal device of grid metal device, dative case
Beam and the pillar for bearing beam.The relatively above-mentioned pillar of extra-column is added setting, is configured at spaced intervals between pillar.
Preferably, in the extra-column that lattice brick of the invention bears metal device, above-mentioned multiple column components can be mutual
Ground bumps are chimeric.
According to such composition, when stacking to multiple column components, keep each column component concave-convex chimeric each other, thus,
The mutual positioning of column component can simply be carried out.The setting setting operation of extra-column is easy as a result, when can shorten operation
Between.
Preferably, in the extra-column that lattice brick of the invention bears metal device, above-mentioned height regulating mechanism includes tune
Whole bolt stands up above-mentioned furnace bottom face and can abut with above-mentioned column main body；And wedge metal device, it is driven into above-mentioned column
Between main body and above-mentioned furnace bottom face.
Preferably, above-mentioned height regulating mechanism has the wedge being driven between above-mentioned column main body and above-mentioned top metal device
Metal device, above-mentioned wedge metal device, abut at least one party among above-mentioned column main body and above-mentioned top metal device
Face is formed as the inclined inclined surface of relatively horizontal orientation.
Preferably, in the extra-column that lattice brick of the invention bears metal device, the inclined surface of above-mentioned wedge metal device
Relatively horizontal orientation is set to greater than 0 degree and the tilt angle less than 10 degree.
According to such composition, for example above-mentioned mode in inclined surface is configured to gently tilt angle.Therefore, even if wedge is golden
Belong to device to be configured between column main body and top metal device, but also in the state of not being driven into, is also able to suppress wedge gold
The positional shift for belonging to device, top metal device, can easily be done column and adds operation.
Preferably, in the extra-column that lattice brick of the invention bears metal device, above-mentioned extra-column has stopper portions
Above-mentioned wedge metal device is locked to above-mentioned column main body and above-mentioned top metal device by part, the block component.
According to such composition, after being adjusted based on squeezing into for wedge metal device to column height dimension, pass through gear
Block part engages wedge metal device, thus, it is possible to inhibit the positional shift of wedge metal device.
Preferably, in the extra-column that lattice brick of the invention bears metal device, above-mentioned block component is formed as wedge shape
Shape is formed with through hole in above-mentioned wedge metal device, which squeezes into the side that direction intersects to wedge for above-mentioned block component
To insertion.
According to such composition, the insertion by adjusting block component with respect to the through hole of wedge metal device, thus, energy
Enough and wedge metal device the wedge amount of squeezing into accordingly makes wedge metal device be locked to column main body and top metal device.
Preferably, in the extra-column that lattice brick of the invention bears metal device, above-mentioned extra-column has retaining member,
The retaining member is fixed on above-mentioned column main body and above-mentioned top metal device, and abuts with above-mentioned block component and prevent the gear
Block part abjection.
According to such composition, anticreep is carried out to block component by retaining member, thereby, it is possible to more reliably keep wedge
The wedge of metal device squeezes into state.
Lattice brick of the invention bears metal device and is characterized in that having: the grid metal device of dative case brick；In receiving
State multiple pillars of grid metal device；And above-mentioned lattice brick of the invention bears the extra-column of metal device.
Lattice brick according to the present invention bears metal device, can be configured to play and bear with above-mentioned lattice brick of the invention
The lattice brick of the identical function and effect of the extra-column of metal device bears metal device.
Preferably, it is born in metal device in lattice brick of the invention, above-mentioned extra-column is in above-mentioned multiple pillar spacer standard widths of a room in an old-style house
It is configured every ground.
According to such composition, by multiple pillars and extra-column, it can shorten what the sub- metal device of plaid matching was supported
Interval.Therefore, it can mitigate and bear the stress that metal device generates in lattice brick, high-temperature capability can be effectively improved.
Preferably, it bears to have: the grid metal device of dative case brick in metal device in lattice brick of the invention；It bears
Multiple pillars of above-mentioned grid metal device；And above-mentioned lattice brick of the invention bears the extra-column of metal device, it is above-mentioned
Extra-column is configured in a manner of multiple adjoinings, relatively above-mentioned by 1 extra-column among above-mentioned multiple extra-columns of adjacent configuration
Other multiple extra-columns among multiple extra-columns are centrally located, and above-mentioned wedge metal device is in other above-mentioned multiple extra-columns
Wedge is squeezed into direction and is set as along each extra-column from other multiple extra-columns towards 1 extra-column positioned at above-mentioned center
Direction.
According to such composition, when squeezing into wedge metal device in other multiple extra-columns, centrally located 1 can be passed through
A extra-column is squeezed into contrary direction side from the wedge with wedge metal device to other multiple extra-columns and is supported.Therefore,
The wedge that can easily be done wedge metal device squeezes into operation.
In addition, further including wedge gold other than extra-column is in contact with each other the case where configuring in the adjacent configuration of extra-column
Belong to device and waits the case where being slightly separated and configure with the degree that do not interfere each other.
Column adding method of the invention is characterized in that, is to add above-mentioned extra-column of the invention to bear gold in lattice brick
The column main body of above-mentioned extra-column is stood up the furnace bottom face of hot-blast stove in the above-mentioned methods by the method for belonging to device, will be above-mentioned
The wedge metal device of extra-column is placed in above-mentioned column main body, and above-mentioned top metal device is placed in above-mentioned wedge metal device, will
Above-mentioned wedge metal device, which is squeezed between above-mentioned column main body and above-mentioned top metal device, carrys out adjustment column height dimension.
Column adding method according to the present invention can play identical with above-mentioned lattice brick receiving metal device of the invention
Function and effect.
In addition, the case where so-called furnace bottom face that the column main body of extra-column is stood up to hot-blast stove, for example, in addition to by column
The lower end of main body is erected in except the situation on the furnace bottom face of hot-blast stove, and there are also a part of above-mentioned lower end is buried composition
Situation in the contraction-free grouting concrete in furnace bottom face.
Preferably, in column adding method of the invention, above-mentioned column main body is made of multiple column components, by above-mentioned multiple columns
Component stacks in the height direction and erects the above-mentioned column main body of setting.
According to such composition, the multiple column components for constituting column main body can be individually conveyed individually.Thus, for example, i.e.
The opening for passing through the ventilation space between grid metal device and furnace bottom face is straitly formed as cannot be whole by column main body
Small multiple column components integrally than column main body also separately can be moved to ventilation from opening by the degree disposably moved in
Space.In addition, with column main body integrally compared with, column component monomer is small-sized and light weight, therefore, is easy to carry out removing by the progress such as manpower
Enter.
Preferably, in column adding method of the invention, 1 above-mentioned extra-column is set, it is adjacent around above-mentioned extra-column
In the case where connecing configuration and other multiple extra-columns being set, to from other above-mentioned multiple extra-columns towards it is opposite this other it is multiple attached
The wedge of 1 centrally located above-mentioned extra-column of strutting squeezes into the wedge metal device that direction is squeezed into other above-mentioned multiple extra-columns.
According to such composition, when squeezing into wedge metal device in other multiple extra-columns, centrally located 1 can be passed through
A extra-column is squeezed into contrary direction side from the wedge with wedge metal device to other multiple extra-columns and is supported.Therefore,
The wedge that can easily be done wedge metal device squeezes into operation.
Preferably, in column adding method of the invention, above-mentioned wedge metal device is squeezed into above-mentioned column main body and above-mentioned top
It holds between metal device, above-mentioned wedge metal device is locked to by above-mentioned column main body and above-mentioned top metal device by block component
Part.
According to such composition, after being adjusted based on squeezing into for wedge metal device to column height dimension, pass through gear
Block part engages wedge metal device, thus, it is possible to inhibit the positional shift of wedge metal device.
According to the present invention, extra-column, the lattice brick for providing a kind of lattice brick receiving metal device bear metal device and column
Adding method can increase the amount of stored heat of lattice brick, can cut down operating cost.
Detailed description of the invention
Fig. 1 is the schematic diagram for indicating to bear the hot-blast stove of metal device using lattice brick of the first embodiment.
Fig. 2A is to indicate that lattice brick of the first embodiment bears the explanatory diagram of metal device.
Fig. 2 B is to indicate that lattice brick of the first embodiment bears the explanatory diagram of metal device.
Fig. 3 is to indicate that lattice brick of the first embodiment bears the schematic diagram of the extra-column of metal device.
Fig. 4 is to indicate that lattice brick of the first embodiment bears the perspective view of the top metal device of metal device.
Fig. 5 A is to indicate that lattice brick of the first embodiment bears the schematic diagram of the construction of metal device.
Fig. 5 B is to indicate that lattice brick of the first embodiment bears the schematic diagram of the construction of metal device.
Fig. 5 C is to indicate that lattice brick of the first embodiment bears the schematic diagram of the construction of metal device.
Fig. 5 D is to indicate that lattice brick of the first embodiment bears the schematic diagram of the construction of metal device.
Fig. 6 A is to indicate that lattice brick of the second embodiment bears the signal of the main portions of the extra-column of metal device
Figure.
Fig. 6 B is to indicate that lattice brick of the second embodiment bears the signal of the main portions of the extra-column of metal device
Figure.
Fig. 7 A is to indicate that lattice brick of the third embodiment bears the signal of the main portions of the extra-column of metal device
Figure.
Fig. 7 B is to indicate that lattice brick of the third embodiment bears the signal of the main portions of the extra-column of metal device
Figure.
Fig. 8 is to indicate that lattice brick of the fourth embodiment bears the explanatory diagram of the extra-column of metal device.
Specific embodiment
[the 1st embodiment]
Hereinafter, being illustrated based on attached drawing to the 1st embodiment of the invention.
In Fig. 1, hot-blast stove 2 is connected to the blast furnace 1 of ironmaking in which can supply hot wind.In Fig. 1,1 is only shown
Hot-blast stove 2, but every seat height furnace is provided with multiple hot-blast stoves 2.
Hot-blast stove 2 is the furnace for having combustion chamber and regenerative chamber 3.The lattice brick 4 of accumulation of heat is laminated in regenerative chamber 3.In heat
The lower side of wind furnace 2 is connected with the pipeline 5 for making air circulate to lattice brick 4, hot-blast stove 2 furnace bottom face 21 (Fig. 2A with
And Fig. 2 B reference) it is provided with lattice brick receiving metal device 10 of the first embodiment.
Each lattice brick 4 is that substantially hexagonal shape, multiple through holes of each lattice brick 4 are formed simultaneously quilt up and down when overlooking
It is arranged in clathrate.Multiple lattice bricks 4 are mutually interconnected in the horizontal direction with clathrate by multiple arrangements with respective through hole
Until near the furnace roof that logical mode is stacked into hot-blast stove 2 from lattice brick bears metal device 10.
It is cast iron system that lattice brick, which bears metal device 10, is the metal device for supporting lattice brick 4.As shown in Fig. 2A, Fig. 2 B,
Lattice brick, which bears metal device 10, to be had: the grid metal device 20 of dative case brick 4；The beam 30 of the sub- metal device 20 of dative case；It holds
By multiple pillars 40 of beam 30；Multiple extra-columns 50 of metal device are born (hereinafter, it is additional for omitting address with qualifying brick
Column).Grid metal device 20, beam 30, pillar 40 and extra-column 50 are cast iron system.
Grid metal device 20 is tabular, is set as extending in the horizontal direction in the furnace bottom part of the inside of hot-blast stove 2.
On grid metal device 20, it is formed with multiple ventholes 201 shown in Fig. 3 up and down.The upper table of grid metal device 20
Lower surface in face of lattice brick 4 is supported.The lower surface of grid metal device 20 is supported via beam 30 by multiple pillars 40, and
It is supported by multiple extra-columns 50.
Beam 30 is configured multiplely along the lower surface arrangement of grid metal device 20.
Multiple pillars 40 are configured at intervals along the length direction of each beam 30.Each pillar 40 is integrally formed as
Column.The lower end of each pillar 40 is fixed in the heat resistance concrete 22 of the furnace bottom part of hot-blast stove 2.The upper end of each pillar 40
It is abutted with the lower surface of beam 30.
As shown in figure 3, each extra-column 50 has column main body 51, is configured in column main body 51 and the sub- metal device 20 of dative supports
The top metal device 52 that connects and wedge metal device 53 between column main body 51 and top metal device 52 is squeezed into, passes through wedge
Metal device 53 constitutes height regulating mechanism.Furthermore it is preferred that heat-resisting temperature of the extra-column 50 by the pillar 40 than being set
The heat-resisting cast iron of the high heat resisting temperature (450~600 DEG C of degree) of degree (300~450 DEG C of degree) is formed.
Column main body 51 has the multiple column components 511 stacked in the short transverse of hot-blast stove 2.Each formation of column component 511
For section hexagonal shape.
The column component 511A of most junior among multiple column components 511 is in the hole that its lower face side is formed inserted with steel
Axis body 54.Here, axis body 54 will be flowed into the ungauged regions of the groove portion formed by the deposited brick 23 being laid on heat resistance concrete 22
Grouting material 24 penetrates through, and is fixed in heat resistance concrete 22, which erects setting with respect to furnace bottom face 21.In column component 511A
Upper surface be formed with protrusion 512 (dowel pin).
The lower surface of uppermost column component 511B among multiple column components 511 is formed with recess portion 513.Column component
The upper surface of 511B is formed as flat horizontal plane.
Remaining multiple column components 511 are formed with protrusion 512 in upper surface other than column component 511A, 511B, under
Surface is formed with recess portion 513.
Here, each protrusion 512 and each recess portion 513 carry out concave-convex chimeric, mutually column component 511 is positioned.
As shown in figure 3, top metal device 52 has the top main body that the lower surface of the sub- metal device 20 of dative abuts
521 and the wedge contact body 522 that is abutted with wedge metal device 53.The lower surface of top main body 521 is fixed in wedge contact body
522 upper surface.
As shown in figure 4, top main body 521 by the slit 523 of the ventilation on block in the horizontal direction it is multiple in a row
The mode of formation is configured.
Slit 523 is open in the upper surface of top main body 521 and two sides, is formed to make from grid metal device
The gas of the venthole 201 of part 20 is ventilated from the upper surface of top main body 521 to side.Depth dimensions (the top of slit 523
Hold the depth dimensions from upper surface to lower face side of main body 521) with from the central portion on the left and right directions of top main body 521
It rises and is become larger towards left and right ends portion.
Part in top main body 521 between slit 523 is formed as plate, the upper surface dative interest category device of the part
The lower surface of part 20 abuts.
The lower surface 522A of wedge contact body 522 is formed as the inclined inclined surface in upper surface along wedge metal device 53.
In addition, top main body 521 can also be integrally formed with wedge contact body 522.
Wedge metal device 53 is formed as the thickness T of up and down direction in the horizontal direction from one end towards another
End side and become larger.
The lower surface 531 of wedge metal device 53 is formed as flat horizontal plane, abuts with the upper surface of column component 511B.
The upper surface 532 of wedge metal device 53 is formed as flat inclined surface, which is configured to relatively
Horizontal direction is in be greater than 0 degree and the tilt angle less than 10 degree, is configured to 1 degree of tilt angle in the present embodiment.
The wedge metal device 53 is configured to squeeze by the wedge being driven between column main body 51 and top metal device 52
The adjustment of amount can adjust the whole column height dimension L of extra-column 50.
As shown in Figure 2 B, born in metal device 10 in lattice brick, 7 extra-columns 50 are configured by adjacent, each group for example it is above-mentioned that
7 extra-columns 50 of the adjacent configuration of sample, between beam 30 and are spaced apart compartment of terrain in multiple pillars 40 and are configured.
By other among the relatively multiple extra-columns 50 of 1 extra-column 50A among multiple extra-columns 50 of adjacent configuration
Multiple extra-column 50B are centrally located.
Wedge of the wedge metal device 53 in each extra-column 50B is squeezed into direction and is set to along from each extra-column 50B points
Not towards the direction of extra-column 50A.Therefore, the wedge of 6 extra-column 50B squeeze into direction by center extra-column 50A centered at
For radiation direction.
In the case where carrying out accumulation of heat in above-mentioned hot-blast stove 2, it will be imported in the gas of combustion chambers burn to regenerative chamber 3,
Lattice brick 4 in regenerative chamber 3 is heated.The gas that plaid matching brick 4 heats sprays downward from the through hole of lattice brick 4, by lattice
Brick bears the ventilation space 6 formed between metal device 10 and the furnace bottom face 21 of hot-blast stove 2, and Xiang Guandao 5 is flowed and is discharged.
In addition, import outer gas from pipeline 5 to ventilation space 6 in the case where supplying hot wind to blast furnace 1 in hot-blast stove 2,
Distribute from ventilation space 6 towards each through hole of lattice brick 4, the outer gas heated during passing through lattice brick 4, as hot wind to
Blast furnace 1 is sent out.
[the column adding method of the 1st embodiment]
Hereinafter, for bearing the column adding method that metal device 10 adds extra-column 50 to lattice brick of the present embodiment
It is illustrated.
Firstly, the maintenance manhole 8 being arranged in the lower part of hot-blast stove 2 is opened, by the column component 511 of multiple extra-columns 50
It is moved in the ventilation space 6 between the sub- metal device 20 of 21 dative of furnace bottom face.
Then, as shown in Figure 5A, the column component 511A of most junior is configured at the specified position on furnace bottom face 21, insertion from
The axis body 54 outstanding of furnace bottom face 21.Then, (including the uppermost column portion of multiple column components 511 is stacked on column component 511A
Part 511B).At this point, each protrusion 512 and each recess portion 513 carry out it is concave-convex chimeric.In this way, as shown in Figure 5 B, column main body 51 is erect
It is set to furnace bottom face 21.
Then, as shown in Figure 5 C, wedge metal device 53 is placed in upper surface (the upper table of column component 511B of column main body 51
Face), top metal device 52 is placed in the upper surface of wedge metal device 53.
In turn, wedge metal device 53 is squeezed between column main body 51 and top metal device 52, makes top metal device 52
It is moved upward.By squeezing into for wedge metal device 53, the upper surface of top metal device 52 is crimped on grid metal device 20
Lower surface.
In this way, extra-column 50 is arranged to mode shown in Fig. 5 D.In addition, the column height dimension L of extra-column 50 can lead to
It crosses the adjustment of the wedge amount of squeezing into of wedge metal device 53 and is adjusted.
Here, having multiple extra-columns 50 as shown in Figure 2 B by adjacent the case where configuring.So the adjoining of extra-column 50 is matched
The sequence set is as described below.
Firstly, the extra-column 50A in center is arranged to above-mentioned mode.Then, the adjacent configuration around extra-column 50A
And 6 extra-column 50B of setting.Here, the wedge of each extra-column 50B squeeze into direction be set as from each extra-column 50 towards center it is attached
The direction strutting 50A.In this way, carrying out adjacent configuration to multiple extra-columns 50.
[effect of the 1st embodiment]
(1) in the present embodiment, which is characterized in that extra-column 50 is the grid metal in the lattice brick 4 for bearing hot-blast stove 2
The extra-column 50 being arranged between device 20 and furnace bottom face 21, the extra-column 50 have column main body 51, are configured in column main body 51 simultaneously
The top metal device 52 and be driven between column main body 51 and top metal device 52 that the sub- metal device 20 of dative abuts
Wedge metal device 53, wedge metal device 53, the face that is abutted at least one party among column main body 51 and top metal device 52
Be formed as to the inclined inclined surface of horizontal direction (upper surface 532).
Due to above-mentioned composition, extra-column 50 can be added with subsequent sequence and bear metal device in lattice brick
Part 10.Firstly, column main body 51 is stood up furnace bottom face 21, wedge metal device 53 is placed in column main body 51, by top gold
Belong to device 52 and is placed in wedge metal device 53.Then, by wedge metal device 53 squeeze into column main body 51 and top metal device 52 it
Between carry out adjustment column height dimension L.
Here, by adjusting the wedge amount of squeezing into of wedge metal device 53 grid can be played with the furnace bottom face 21 from hot-blast stove 2
Height dimension until the lower surface of metal device 20 accordingly adjusts the column height dimension L of extra-column 50, being capable of secured twelve Earthly Branches
Hold grid metal device 20.Since extra-column 50 can be added as described above, it is therefore not necessary to which carrying out plaid matching brick bears metal device
Large-scale replacement/improvement project that part 10 is replaced is able to suppress furnace processor during not needing long-term operation stopping
Reduction.
In addition, can be improved the intensity that lattice brick bears metal device 10, heat resisting temperature is improved, the storage of lattice brick 4 can be increased
Heat.In turn, it by increasing amount of stored heat, so as to carry out high temperature to from hot-blast stove 2 to the hot wind of blast furnace 1, can reduce
Coke can cut down operating cost.
In turn, in the present embodiment, each effect below can be played.
(2) upper surface 532 (inclined surface) of wedge metal device 53 is set as relatively horizontal orientation greater than 0 degree and less than 10 degree
Tilt angle.Above-mentioned upper surface 532 is in gentle tilt angle as a result, therefore, even if being configured in wedge metal device 53
Between column main body 51 and top metal device 52, and in the state of being driven into not yet, be also able to suppress wedge metal device 53,
The positional shift of top metal device 52 can be easy progress column and add operation.
(3) column main body 51 has the multiple column components 511 stacked in the height direction.It therefore, can be with respect to the column main body
Column main body 51 is divided into multiple column components 511 smaller by 51, can separately convey each column component 511.Therefore, example
Such as, even if be straitly formed as cannot one for the opening 7 that the ventilation space 6 between grid metal device 20 and furnace bottom face 21 passes through
Multiple column components 511 also separately can be moved to ventilation from opening by the degree that secondary property integrally moves in column main body 51
In space 6.In addition, compared with column main body 51 is whole, 511 monomer of column component is small-sized and light weight, therefore, be easy by manpower etc. into
Row is moved in.
(4) multiple column components 511 are configured to concave-convex can mutually be fitted into.Therefore, it is stacked to multiple column components 511
When, it is concave-convex chimeric each other to make each column component 511, thus, it is possible to simply carry out the mutual positioning of column component 511.It adds as a result,
The setting setting operation of column 50 is easy, and can shorten the operating time.
(5) it is formed with slit 523 in top metal device 52, which is configured at the logical of the sub- metal device 20 of dative
The corresponding position of stomata 201 makes the gas from the venthole 201 ventilate to the side of the top metal device 52.Therefore, energy
The occlusion locations for enough reducing the venthole 201 of grid metal device 20, can reduce the gas as caused by top metal device 52
The obstruction of flowing.
(6) extra-column 50 is spaced apart compartment of terrain in multiple pillars 40 and is configured.Therefore, pillar 40 and extra-column can be passed through
50 shorten the interval that the sub- metal device 20 of plaid matching is supported, and can mitigate and answer what lattice brick bore that metal device 10 generates
Power can effectively improve heat resisting temperature.
(7) other multiple extra-column 50B opposite by 1 extra-column 50A among multiple extra-columns 50 of adjacent configuration
The wedge of wedge metal device 53 in center, multiple extra-column 50B is squeezed into direction and is set as along from multiple extra-column 50B points
Not towards the direction of central extra-column 50A.Therefore, when squeezing into wedge metal device 53 in multiple extra-column 50B, can pass through
The extra-column 50A in center squeezes into contrary direction side from the wedge with wedge metal device 53 and props up multiple extra-column 50B
It holds.Thereby, it is possible to be easy to carry out the wedge of wedge metal device 53 to squeeze into operation.
[the 2nd embodiment]
Hereinafter, being illustrated based on Fig. 6 A and Fig. 6 B to the 2nd embodiment of the invention.
Lattice brick of the second embodiment shown in Fig. 6 A bears the extra-column 60 of metal device in addition to wedge metal device
Other than 53, the extra-column 50 for bearing metal device with the lattice brick of the 1st embodiment is identically formed.
Extra-column 60 is also equipped with block component 61 other than having composition identical with extra-column 50.
Block component 61 be wedge shape, and be formed as with from lower end towards upper end and thickness becomes larger.
Extra-column 60 has wedge metal device 63.Wedge metal device 63 is formed substantially in the same manner with wedge metal device 53, but
Be further be formed with squeezed into wedge penetrated through in the direction i.e. up and down direction that direction intersects through hole 64 (referring to Fig. 6 A,
Fig. 6 B).
It, will after squeezing into wedge metal device 63 between column main body 51 and top metal device 52 in the extra-column 60
Block component 61 is inserted into through hole 64.Wedge metal device 63 and column main body 51 and top metal device 52 are engaged as a result, pressed down
The positional shift of wedge metal device 63 processed.
In addition, can be squeezed into the insertion of through hole 64 with the wedge of wedge metal device 63 by adjusting block component 61
Amount accordingly engages the wedge metal device 63 with column main body 51 and top metal device 52 securely.
In addition, block component 61 is not limited to wedge shape, as long as having the shape for being inserted into through hole 64.Therefore,
For example, block component 61 can also be rectangular shape.
[the 3rd embodiment]
Hereinafter, based on Fig. 7 A and Fig. 7 B, embodiments of the present invention will be described.
Extra-column 70 shown in Fig. 7 A has column main body 51, top metal device 52, wedge gold identically as the 2nd embodiment
Belong to device 63 and block component 61.
In turn, extra-column 70 has retaining member 71 shown in Fig. 7 A, Fig. 7 B.
Retaining member 71 has a pair of of the fixation member for the side for being welded in column main body 51 and top metal device 52
72 and it is welded in the anti-off board 73 of a pair of of fixation member 72.Anti-off board 73 configures in the horizontal direction.Anti-off board 73 uses following table
Face is abutted with the upper surface of block component 61, and the block component 61 is inhibited to deviate from upwards.In this way, passing through 71 pairs of retaining member gears
Block part 61 carries out anticreep, can more reliably keep the wedge of wedge metal device 63 to squeeze into state.
[the 4th embodiment]
Hereinafter, based on Fig. 8, embodiments of the present invention will be described.
In the above-described embodiment, wedge metal device 63 is set between column main body 51 and top metal device 52 as high
Spend adjustment mechanism.In this regard, the height regulating mechanism of present embodiment is formed between column main body 51 and furnace bottom face 21.
In fig. 8, extra-column 80 has column main body 51 and top identically as the above-mentioned extra-column 50 of the 1st embodiment
Metal device 52 is held, column main body 51 is made of multiple column components 511.But top metal device 52 is only used as and is formed with slit
523 top main body 521 is omitted in the 1st embodiment as the wedge contact body 522 of height regulating mechanism and wedge metal device
Part 63.
Extra-column 80 has lower member 81, the structure between the lower member 81 and furnace bottom face 21 in the lower end of column main body 51
At there is height regulating mechanism.
It is fixed with the base component 82 of steel in furnace bottom face 21, base component 82 is provided with multiple adjustment bolts 83.Under
It is tight with fastening bolt 84 after the bottom part 811 of end pieces 81 is by being adjusted to the head rest supporting of adjustment bolt 83 of specified altitude
It is fixed in base component 82.The upper end of extra-column 80 is adjusted to defined height with respect to furnace bottom face 21 as a result,.
Between bottom part 811 and base component 82, wedge gold has been squeezed into from multiple position (between adjustment bolt 83) sides
Belong to device 85 load of extra-column 80 is reliably transmitted towards furnace bottom face 21 via the wedge metal device 85.
Even if, also can be using as the adjustment bolt 83 and wedge of height regulating mechanism in such present embodiment
Metal device 85 adjusts the height of extra-column 80 or even top metal device 52, can obtain and the 1st above-mentioned embodiment
Identical effect.
[variation]
The present invention is not limited to the compositions that above embodiment illustrates, can reach within the scope of the purpose of the present invention
Variation is contained in the present invention.
For example, in the above-described embodiment, column main body 51 is divided into multiple column components 511 and constitutes, and but not limited to this,
Column can also be formed integrally as in the range of can move in ventilation space 6.
In the above-described embodiment, it is formed with protrusion 512 (dowel pin) and recess portion 513 in multiple column components 511, but
It is that can also omit the composition of protrusion 512 and recess portion 513.
In the above-described embodiment, it is formed in top metal device 52 for the venthole from grid metal device 20
The slit 523 that 201 gas passes through, it is also possible to omit the composition of the slit 523.
In the above-described embodiment, the tilt angle of the upper surface 532 (inclined surface) of wedge metal device 53 is set as opposite water
Square to the tilt angle less than 10 degree, but not limited to this, wedge metal device 53 can be placed in top metal device 52
On range in can also be set as 10 degree or more of tilt angle.
In the above-described embodiment, multiple extra-columns 50 are configured by adjacent, but not limited to this, it can also be distributed.
In the above-described embodiment, 532 relatively horizontal orientation of the upper surface inclination of wedge metal device 53, but not limited to this.
For example, it is also possible to be set as the horizontal plane that upper surface 532 is formed as flat, it is inclined that lower surface 531 is formed as relatively horizontal orientation
Inclined surface.Furthermore it is also possible to be that both upper surface 532 and lower surface 531 are set as inclined surface.In this case, column portion
The upper surface of part 511B, the lower surface 522A of top metal device 52 and wedge metal device 53 lower surface 531, upper surface 532
Tilt angle be accordingly set as inclined surface, horizontal plane.
In the above-described embodiment, the lower surface 531 and upper surface 532 of wedge metal device 53 are formed flatly, but not
It is limited to this, convex form, the concave shape (" V " word shape) etc. that can also be set as squeezing into direction extension along wedge constitute guide portion.At this
In the case of kind, the upper surface of column component 511B, the lower surface 522A of top metal device 52 and wedge metal device 53 lower surface
531, the shape of upper surface 532 is accordingly set as concave shape, convex form.
Guide portion with this configuration guides thus, it is possible to which wedge metal device 53 is squeezed into direction to wedge, can be simply
It is squeezed into.Therefore, it can be squeezed by the wedge of wedge metal device 53, it is easier to and accurately carry out the tune of column height dimension L
Whole operation.
In the above-described embodiment, each column component 511 of extra-column 50 is formed as section hexagonal shape, but is not limited to
This, can also be the polygonal shapes such as section triangle shape, quadrangle form, furthermore it is also possible to be section circle shape.
In the above-described embodiment, pillar 40 is via the sub- metal device 20 of dative case indirectly of beam 30, but not limited to this, also
The composition that can be omitted beam 30 passes through the sub- metal device 20 of the direct dative case of pillar 40.
In the above-described embodiment, the material of grid metal device 20, beam 30, pillar 40 and extra-column 50 is set as casting
It is iron to be illustrated, still, as long as the material of these components meets above-mentioned high-temperature capability and may not be cast iron system, example
Such as, it can also be refractory material/cast steel etc..
Claims (15)
1. a kind of lattice brick bears the extra-column of metal device, which is set to the grid metal for bearing the lattice brick of hot-blast stove
Between device and furnace bottom face, which is characterized in that have:
Column main body has the multiple column components stacked in the height direction；Top metal device is configured in above-mentioned column main body simultaneously
It is abutted with above-mentioned grid metal device；And height regulating mechanism, be set to above-mentioned column main body and above-mentioned top metal device it
Between, between the midway or above-mentioned column main body and above-mentioned furnace bottom face of above-mentioned column main body,
Above-mentioned top metal device has slit, which is configured at position corresponding with the venthole of above-mentioned grid metal device
It sets, the gas from the venthole is made to ventilate to the side of the top metal device.
2. the extra-column that lattice brick as described in claim 1 bears metal device, which is characterized in that
Above-mentioned multiple column components can be reciprocally concave-convex chimeric.
3. the extra-column that lattice brick as described in claim 1 bears metal device, which is characterized in that
Above-mentioned height regulating mechanism includes adjustment bolt, stands up above-mentioned furnace bottom face and can abut with above-mentioned column main body；
And wedge metal device, it is driven between above-mentioned column main body and above-mentioned furnace bottom face.
4. the extra-column that lattice brick as described in claim 1 bears metal device, which is characterized in that
Above-mentioned height regulating mechanism has the wedge metal device being driven between above-mentioned column main body and above-mentioned top metal device,
Above-mentioned wedge metal device, the face that abuts at least one party among above-mentioned column main body and above-mentioned top metal device formed
For the inclined inclined surface of relatively horizontal orientation.
5. the extra-column that lattice brick as claimed in claim 4 bears metal device, which is characterized in that
The inclined surface of above-mentioned wedge metal device is set to relatively horizontal orientation greater than 0 degree and the tilt angle less than 10 degree.
6. the extra-column that lattice brick as claimed in claim 4 bears metal device, which is characterized in that
Above-mentioned extra-column has block component, the block component by above-mentioned wedge metal device be locked to above-mentioned column main body and on
State top metal device.
7. the extra-column that lattice brick as claimed in claim 6 bears metal device, which is characterized in that
Above-mentioned block component is formed as wedge shape,
It is formed with through hole in above-mentioned wedge metal device, which squeezes into the side that direction intersects to wedge for above-mentioned block component
To insertion.
8. the extra-column that lattice brick as claimed in claim 6 bears metal device, which is characterized in that
Above-mentioned extra-column has retaining member, which is fixed on above-mentioned column main body and above-mentioned top metal device, and
And abutting with above-mentioned block component prevents the block component from deviating from.
9. a kind of lattice brick bears metal device, which is characterized in that have:
The grid metal device of dative case brick；
Bear multiple pillars of above-mentioned grid metal device；And
The extra-column of the receiving metal device of lattice brick described in any one of 1~claim 8 of claim.
10. lattice brick as claimed in claim 9 bears metal device, which is characterized in that
Above-mentioned extra-column is opened compartment of terrain in above-mentioned multiple pillar spacers and is configured.
11. a kind of lattice brick bears metal device, which is characterized in that have:
The grid metal device of dative case brick；
Bear multiple pillars of above-mentioned grid metal device；And
Lattice brick described in any one of 3~claim 8 of claim bears the extra-column of metal device,
Above-mentioned extra-column is configured in a manner of multiple adjoinings, by 1 extra-column among above-mentioned multiple extra-columns of adjacent configuration
Other multiple extra-columns among relatively above-mentioned multiple extra-columns are centrally located,
Wedge of the above-mentioned wedge metal device in other above-mentioned multiple extra-columns squeeze into direction be set as along from this other it is multiple attached
Each extra-column direction of strutting is located at the direction of 1 extra-column in above-mentioned center.
12. a kind of column adding method, which is characterized in that
Above-mentioned column adding method is that lattice brick described in any one of 4~claim 8 of claim is born metal device
Extra-column adds the method for bearing metal device in lattice brick,
In the above-mentioned methods,
The column main body of above-mentioned extra-column is stood up to the furnace bottom face of hot-blast stove,
The wedge metal device of above-mentioned extra-column is placed in above-mentioned column main body,
Above-mentioned top metal device is placed in above-mentioned wedge metal device,
Above-mentioned wedge metal device is squeezed between above-mentioned column main body and above-mentioned top metal device and carrys out adjustment column height dimension.
13. column adding method as claimed in claim 12, which is characterized in that
Above-mentioned column main body is made of multiple column components,
Above-mentioned multiple column components are stacked in the height direction and erect the above-mentioned column main body of setting.
14. column adding method as claimed in claim 12, which is characterized in that
1 above-mentioned extra-column is set,
In the case that adjoining configures and other multiple extra-columns is arranged around above-mentioned extra-column,
To the wedge from other above-mentioned multiple extra-columns towards opposite 1 centrally located above-mentioned extra-column of other multiple extra-columns
Squeeze into the wedge metal device that direction is squeezed into other above-mentioned multiple extra-columns.
15. column adding method as claimed in claim 12, which is characterized in that
Above-mentioned wedge metal device is squeezed between above-mentioned column main body and above-mentioned top metal device,
Above-mentioned wedge metal device is locked to above-mentioned column main body and above-mentioned top metal device by block component.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-135321 | 2016-07-07 | ||
| JP2016135321A JP6615059B2 (en) | 2016-07-07 | 2016-07-07 | Additional columns for checker brick receiving hardware, checker brick receiving hardware and column expansion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107586908A CN107586908A (en) | 2018-01-16 |
| CN107586908B true CN107586908B (en) | 2019-09-20 |
Family
ID=60945929
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720646380.5U Withdrawn - After Issue CN207047270U (en) | 2016-07-07 | 2017-06-06 | The extra-column that lattice brick bears metal device bears metal device with brick of passing |
| CN201710417047.1A Active CN107586908B (en) | 2016-07-07 | 2017-06-06 | Lattice brick bears the extra-column of metal device, lattice brick bears metal device and column adding method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720646380.5U Withdrawn - After Issue CN207047270U (en) | 2016-07-07 | 2017-06-06 | The extra-column that lattice brick bears metal device bears metal device with brick of passing |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6615059B2 (en) |
| CN (2) | CN207047270U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6615059B2 (en) * | 2016-07-07 | 2019-12-04 | 日鉄エンジニアリング株式会社 | Additional columns for checker brick receiving hardware, checker brick receiving hardware and column expansion method |
| CN112251556B (en) * | 2020-09-30 | 2022-06-21 | 广东韶钢松山股份有限公司 | Method for recovering performance of grate support column equipment of blast furnace hot blast stove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56213A (en) * | 1979-06-15 | 1981-01-06 | Ishikawajima Harima Heavy Ind Co Ltd | Hot air furnace |
| CN201634702U (en) * | 2010-01-26 | 2010-11-17 | 北京首钢国际工程技术有限公司 | High-temperature and low-oxygen top-combustion type hot-blast stove |
| CN103290156A (en) * | 2013-05-15 | 2013-09-11 | 萨伯丁·安东 | Grating plate device of lattice brick air heating furnace |
| CN205115515U (en) * | 2014-10-17 | 2016-03-30 | 新日铁住金工程技术株式会社 | Check brick supporting components and hot -blast furnace |
| CN207047270U (en) * | 2016-07-07 | 2018-02-27 | 新日铁住金工程技术株式会社 | The extra-column that lattice brick bears metal device bears metal device with brick of passing |
-
2016
- 2016-07-07 JP JP2016135321A patent/JP6615059B2/en active Active
-
2017
- 2017-06-06 CN CN201720646380.5U patent/CN207047270U/en not_active Withdrawn - After Issue
- 2017-06-06 CN CN201710417047.1A patent/CN107586908B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56213A (en) * | 1979-06-15 | 1981-01-06 | Ishikawajima Harima Heavy Ind Co Ltd | Hot air furnace |
| CN201634702U (en) * | 2010-01-26 | 2010-11-17 | 北京首钢国际工程技术有限公司 | High-temperature and low-oxygen top-combustion type hot-blast stove |
| CN103290156A (en) * | 2013-05-15 | 2013-09-11 | 萨伯丁·安东 | Grating plate device of lattice brick air heating furnace |
| CN205115515U (en) * | 2014-10-17 | 2016-03-30 | 新日铁住金工程技术株式会社 | Check brick supporting components and hot -blast furnace |
| CN207047270U (en) * | 2016-07-07 | 2018-02-27 | 新日铁住金工程技术株式会社 | The extra-column that lattice brick bears metal device bears metal device with brick of passing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018003134A (en) | 2018-01-11 |
| CN207047270U (en) | 2018-02-27 |
| CN107586908A (en) | 2018-01-16 |
| JP6615059B2 (en) | 2019-12-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107586908B (en) | Lattice brick bears the extra-column of metal device, lattice brick bears metal device and column adding method | |
| CN206486576U (en) | A kind of billet heating walking beam furnace | |
| CN102444907B (en) | The method of burning is carried out in industrial furnace | |
| CN203782013U (en) | Automatic rising type springer structure for regenerative chamber of glass smelting kiln | |
| CN211666752U (en) | Tunnel lock foot stock positioner | |
| CN201606010U (en) | M-shaped headframe support system of sheave platform in shape of a ladder | |
| CN201819232U (en) | Composite grate | |
| CN208616372U (en) | Three-dimensional assembled architecture superimposed sheet storage shelf | |
| CN201406843Y (en) | Adjustable flue arch stuffing supporting frame | |
| CN203534153U (en) | Energy-saving tunnel kiln | |
| CN203923238U (en) | Complete resistance to equipment structure supports checker brick furnace binding | |
| JP6932722B2 (en) | Bottom support type boiler | |
| US10330315B2 (en) | Integral self-supporting composite refractory wall modules for refractory structures and methods of forming refractory structure walls of the same | |
| US4479778A (en) | Construction of regenerator furnaces | |
| CN201145282Y (en) | Furnace grill for blast furnace hot blast stove as well as column support apparatus | |
| CN102900152B (en) | Net rack plate type rotating support | |
| CN104073582B (en) | Complete resistance to equipment structure supports checker brick furnace binding and brick-building art method | |
| CN206205484U (en) | A kind of construction roof beam structure | |
| CN207268089U (en) | Tool-type hoisting bracket device | |
| CN101622507B (en) | A modular tunnel kiln, and a method and equipment for mounting the tunnel kiln | |
| CN105040991B (en) | The supporting construction and method for supporting of large-span steel segmental hoisting | |
| CN109072319A (en) | Addition column, checker brick bearing metal part and the column adding method of checker brick bearing metal part | |
| CN206220116U (en) | Factory building upright post basic | |
| CN203238291U (en) | Grating plate device of hot-blast furnace | |
| CN201273768Y (en) | Injection circular flow type direct firing pushed slab kiln |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Tokyo, Japan, Japan Applicant after: Nippon Railway Engineering Technology Co., Ltd. Address before: Tokyo, Japan, Japan Applicant before: Nippon Steel Eng Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |