CN108531673A - A kind of slag ladle for blast furnace slag hot-loading and hot-conveying - Google Patents
A kind of slag ladle for blast furnace slag hot-loading and hot-conveying Download PDFInfo
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- CN108531673A CN108531673A CN201810808875.2A CN201810808875A CN108531673A CN 108531673 A CN108531673 A CN 108531673A CN 201810808875 A CN201810808875 A CN 201810808875A CN 108531673 A CN108531673 A CN 108531673A
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- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/10—Slag pots; Slag cars
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Abstract
The invention discloses a kind of slag ladles for blast furnace slag hot-loading and hot-conveying, are related to blast-furnace slag application technology as the second resource field.The present invention includes slag ladle tank body, inlet and outlet pipes；Slag ladle tank body includes inner canister layer and outer tank layer, is provided with cavity layer between inner canister layer and outer tank layer, inner canister layer is cast iron layer；Water inlet line is disposed through on outer tank layer, and water inlet line is connected with cavity layer, and outlet conduit is disposed through on outer tank layer, and outlet conduit is connected with cavity layer.The present invention injects cooling water into cavity layer by water inlet line, cooling water the high-temperature slag of loading can be carried out being quickly cooled down it is cold so that it is formed skull on inner canister layer inner wall, prevent slag from being bonded with slag ladle tank body；After water is discharged by outlet conduit in cavity layer, cavity layer can keep the temperature the slag in slag ladle body, and inner canister layer inner wall is avoided to form blocked up skull, and blast furnace slag is allowed to obtain better recycling production processing.
Description
Technical field
The present invention relates to blast-furnace slag application technology as the second resource fields, more specifically to one kind for blast furnace slag heat
Fill the slag ladle of hot sending.
Background technology
The use of continuous improvement with people to requirements such as building heat preservation, comfort levels, heat preserving and insulating material is more and more wider
General, heat preserving and insulating material includes mainly foamed plastics (polystyrene, polyurethane, phenolic resin etc.) and mineral fibres (mine at present
Slag wool, rock wool, aluminosilicate fiber cotton etc.) two major classes, and the heat preserving and insulating material of inorganic mineral fiber type is because it is with outstanding
Energy saving, fire resisting and soundproof effect are paid close attention to by researcher.On the other hand, it with the rapid development of steel and iron industry, smelts
The blast furnace slag being discharged during the pig iron is also more and more.The innoxious of melting waste slag, recycling treatment become China or even the world
The focus that various countries attach great importance to also becomes one of the centre point of Circular Economy.
Blast furnace is the important component of integrated iron and steel works, and blast-furnace technique economic indicator is good, simple for process, output
Greatly, labor productivity is high, and low energy consumption, and the pig iron of production accounts for 95% of world iron total output or more.Blast furnace slag is blast furnace ironmaking
Main By product, discharge temperature is at 1400 DEG C or more.Under normal circumstances, 1t blast furnace cinders contain sensible heat 1675MJ, about quite
The heat released when 57kg standard coal combustions.Blast furnace slag mostly uses greatly water quenching processing at present, need to consume a large amount of water, and high
The high temperature sensible heat of clinker discharges in vain to be difficult to recycle, and H is generated when water quenching2S、SO2Equal pernicious gases pollute environment, therefore high
The hot spot for being developed into domestic and international iron and steel enterprise's research of clinker dry process technique.
Mineral wool is a kind of puffy short glass fibre made from molten silicate object, with light, thermal coefficient is small, non-ignitable
It burns, the features such as mothproof, inexpensive, corrosion-resistant, chemical stability is good, sound absorbing performance is good.It can be used for the filling thermal insulation of building, inhale
Sound, sound insulation, oxygenerator and freezer cold insulation and various heat power equipments are stuffed heat insulated etc..It can be divided into rock wool and slag by raw material used
Cotton two major classes.Rock wool is with natural rock such as basalt, gabbro, dolomite, iron ore, bauxite etc. for primary raw material, warp
High temperature melting, fibrosis and manufactured inorganic fibre.This method needs a large amount of exploitation natural rocks, easily causes vegetation deterioration,
The environmental problems such as soil erosion, land occupation.Moreover, natural rock will pass through high temperature melting, need to consume a large amount of energy.Mine
Slag wool is with industrial waste slag such as blast furnace slag, phosphorus ore slag, flyash etc. for primary raw material, through high temperature melting, using high speed from
Staple shape inorfil made of the techniques such as heart method or blowing process, especially with blast furnace slag mineral wool, the technical process is not
Need water, and high-temperature slag directly cotton processed when recyclable 80% or more sensible heat be a kind of economically feasible for iron and steel enterprise
Dry process technique.
But during producing mineral wool using blast furnace slag, when between blast fumance workshop and mineral wool workshop
Distance farther out when, need by blast furnace slag slag ladle shipment by way of transport to mineral wool workshop.Blast furnace slag slag at present
There are mainly two types of the structures of tank：One kind is the double-deck knot that refractory material (clay brick, high-alumina brick, magnesia) liner adds outer steel shell material
Structure, it is another for cast iron, the single layer structure of straight carbon steel material.The blast furnace slag slag ladle thermal conductivity of double-layer structure is poor, slag ladle
It is not easy to be formed skull between liner and high-temperature slag, and refractory material (clay brick, high-alumina brick, magnesia) is between high-temperature slag
Cementitiousness is stronger, causes high-temperature slag to be easy to be bonded on slag ladle inner wall, it has not been convenient to which subsequent high temperature slag is poured out, and is made
Obtaining the cleaning treatment process of follow-up slag ladle becomes cumbersome, reduces the utilization rate of blast furnace slag；The blast furnace slag slag ladle heat conduction of single layer structure
Property is preferable, and skull, and the bonding between cast iron, straight carbon steel and high-temperature slag are easily formed between cast iron, straight carbon steel and high-temperature slag
Ability is weaker, to which slag ladle inner wall is not easy to bond high-temperature slag, facilitates pouring out for high-temperature slag, but if the transportational process time
Longer, the upper surface of slag ladle inner wall and high-temperature slag can form blocked up skull, reduce the utilization rate of blast furnace slag, and blocked up
Skull is difficult to be crushed, and then influences rhythm of production.So existing, there is an urgent need for be not easy to bond between a kind of inner wall and high-temperature slag and be not easy
Form the blast furnace slag slag ladle of blocked up skull.
Through retrieval, innovation and creation it is entitled：A kind of melting method (application number of liquid blast furnace production mineral wool：
201510250252.4 the applying date：2015-09-16), a kind of liquid blast furnace production mineral wool is disclosed in this application
Melting method, it is up big and down small rounding taper type that the slag ladle used is previously mentioned in this method；Slag ladle shell is steel plate, and inner wall is
Fire resistant heat preserving tank serves as a contrast, and wherein heat insulation tank lining bag includes heat preservation internal layer and fire resisting working lining, and heat preservation internal layer is using light weight fireclay brick or glues
Native refractory brick；Fire resisting working lining is using acid ramming material.The slag ladle mentioned in this application can improve to a certain extent
The service life of slag ladle, but the slag ladle still remains its inner wall and is easy and the bonding problem of high-temperature slag.
Invention content
1. technical problems to be solved by the inivention
Present invention solves the technical problem that being, it is hardly formed for high-temperature slag during using slag ladle to ship blast furnace slag
The problem of skull appropriate, provides a kind of slag ladle for blast furnace slag hot-loading and hot-conveying, and slag ladle tank body is provided with cavity layer, the sky
Cavity layer is packed into initial stage in high-temperature slag, can be quickly cooled down to slag, then be kept the temperature to high-temperature slag, to make
It obtains high-temperature slag and forms skull appropriate in slag ladle body.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention is：
A kind of slag ladle for blast furnace slag hot-loading and hot-conveying of the present invention, including slag ladle tank body, inlet and outlet pipes；
Slag ladle tank body includes inner canister layer and outer tank layer, is provided with cavity layer between inner canister layer and outer tank layer, inner canister layer is cast iron layer；Into
Waterpipe is disposed through on outer tank layer, and water inlet line is connected with cavity layer, and outlet conduit is disposed through on outer tank layer, is gone out
Waterpipe is connected with cavity layer, and cooling water is entered by water inlet line after cavity layer to be discharged by outlet conduit.
Preferably, the wall thickness of the inner canister can body section of inner canister layer is gradually reduced from top to bottom, the inner canister tank bottom section of inner canister layer
Uniform wall thickness is identical.
Preferably, water inlet line and the junction of inner canister can body section and inner canister tank bottom section are correspondingly arranged.
Preferably, outlet conduit includes upper water-out pipeline and lower discharging tube road, and wherein upper water-out pipeline is set to outer tank layer
Top, lower discharging tube road is set to the bottom of outer tank layer.
Preferably, the distance between the top of cavity layer and the top of slag ladle tank body are h, the ranging from 60-120mm of h.
Preferably, junction of the water inlet tube hub line Jing Guo inner canister can body section and inner canister tank bottom section.
Preferably, the distance between top of upper water-out pipeline and cavity layer is 10-20mm.
Preferably, the angle intake between tube hub line and inner canister can body section outer wall is a, water inlet tube hub line and inner canister tank
Bottom angle of the section outer wall between the tangent line of junction is b, and a ＞ b.
Preferably, the thickness of the can body section cavity of cavity layer is gradually reduced from top to bottom.
The application method of the slag ladle of blast furnace slag hot-loading and hot-conveying is：Cooling water is being passed through into cavity layer before, and it is backward
High-temperature slag is added in slag ladle body, quickly forms skull between high-temperature slag and inner canister layer, it then again will be cold in cavity layer
But water empties, and the cavity layer after emptying forms cavity insulation layer.
3. advantageous effect
Using technical solution provided by the invention, compared with existing known technology, there is following remarkable result：
(1) a kind of slag ladle for blast furnace slag hot-loading and hot-conveying of the invention, including slag ladle tank body, water inlet line and outlet pipe
Road；Slag ladle tank body includes inner canister layer and outer tank layer, and cavity layer is provided between inner canister layer and outer tank layer；Water inlet line and water outlet
Pipeline, which extends through, to be set on outer tank layer；Water inlet line injects cooling water into cavity layer, and cooling water can be to being just packed into
High-temperature slag rapidly cool to form skull, and make the skull quickly formed and inner canister layer separation, prevent slag and slag
Tank bonds, and has the function of heat preservation；After then water is discharged by outlet conduit in cavity layer, gassiness sky
Cavity layer can keep the temperature the high-temperature slag in slag ladle body, avoid inner canister layer inner wall from forming blocked up skull, to ensure
The mobility of high-temperature slag improves the utilization rate of blast furnace slag；
(2) a kind of slag ladle for blast furnace slag hot-loading and hot-conveying of the invention, cavity layer can carry out high-temperature slag effective
Ground is kept the temperature, and avoids the heat dissipation that high-temperature slag is excessive so that during late resourceization utilizes, the sensible heat of high-temperature slag obtains
It makes full use of, avoids the waste of blast-furnace cement sensible heat resource；
(3) a kind of slag ladle for blast furnace slag hot-loading and hot-conveying of the invention, inner canister layer are cast iron layer, cast iron high-temperature slag it
Between bonding coefficient it is smaller so that be not susceptible to bond between inner canister layer and skull, and then pouring out in subsequent high temperature slag
Cheng Zhong facilitates skull to be detached with inner canister layer；
(4) a kind of slag ladle for blast furnace slag hot-loading and hot-conveying of the invention, by by the wall of the inner canister can body section of inner canister layer
Thickness is set as being gradually reduced from top to bottom, and the uniform wall thickness of the inner canister tank bottom section of inner canister layer is arranged, and the can body section of cavity layer is empty
The thickness of chamber is arranged from top to bottom to be gradually reduced, and is adjusted the cooling degree in different zones of cooling water, is promoted skull on the whole
Form the homogenization of thickness；
(5) a kind of slag ladle for blast furnace slag hot-loading and hot-conveying of the invention, water inlet line and inner canister can body section and inner canister tank
The junction of bottom section is correspondingly arranged, and junction of the tube hub line Jing Guo inner canister can body section and inner canister tank bottom section that intake, can be with
The cooling effect for strengthening the junction position high-temperature slag, promotes the junction quickly to form skull so that the slag quickly formed
Shell and inner canister layer separation, avoid high-temperature slag from being bonded with the junction so as to be not easy to remain high-temperature slag at this after deslagging.
Description of the drawings
Fig. 1 is a kind of slag ladle structural schematic diagram for blast furnace slag hot-loading and hot-conveying of the present invention；
Fig. 2 is a kind of enlarged drawing of slag ladle water inlet line for blast furnace slag hot-loading and hot-conveying of the present invention；
Fig. 3 is the structural schematic diagram of the embodiment of the present invention 2.
Label declaration in schematic diagram：
100, slag ladle tank body；110, inner canister layer；111, inner canister can body section；112, inner canister tank bottom section；
120, cavity layer；121, can body section cavity；122, tank bottom section cavity；
130, outer tank layer；131, outer tank insulating layer；
140, linkage section；
210, water inlet line；211, water inlet tube hub line；221, upper water-out pipeline；222, lower discharging tube road.
Specific implementation mode
To facilitate the understanding of the present invention, below with reference to relevant drawings to invention is more fully described, in attached drawing
Several embodiments of the present invention are given, still, the present invention can realize in many different forms, however it is not limited to this paper institutes
The embodiment of description, on the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
It should be noted that when element is referred to as " being fixedly arranged on " another element, it can be directly on another element
Or there may also be elements placed in the middle；When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements；Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement is for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical；Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention；Term " and or " used herein includes one or more phases
Any and all combinations of the Listed Items of pass.
Hereafter detailed description of the present invention and example embodiment are more fully understood in combination with attached drawing, wherein the present invention
Element and feature are identified by reference numeral.
Embodiment 1
A kind of slag ladle for blast furnace slag hot-loading and hot-conveying of the present embodiment combined with Figure 1 and Figure 2, including slag ladle tank body 100,
Water inlet line 210 and outlet conduit；Slag ladle tank body 100 includes inner canister layer 110 and outer tank layer 130, inner canister layer 110 and outer tank layer
It is provided with cavity layer 120 between 130, inner canister layer 110 is cast iron layer；Water inlet line 210 is disposed through on outer tank layer 130,
Water inlet line 210 is connected with cavity layer 120, and outlet conduit is disposed through on outer tank layer 130, outlet conduit and cavity layer
120 are connected, and cooling water is entered by water inlet line 210 after cavity layer 120 to be discharged by outlet conduit.High-temperature slag is being packed into slag
Before tank 100, water inlet line 210 constantly injects cooling water into cavity layer 120, and then cooling water passes through outlet conduit
Flow out cavity layer 120 so that the hollow cavity layer 120 of whole process is interior full of the cooling water constantly flowed；Because inner canister layer 110 is casting
Iron layer, thermal conductivity is preferable, and after slag ladle tank body 100 is packed into the high-temperature slag from blast furnace, the heat of high-temperature slag is easy to lead to
It crosses inner canister layer 110 to conduct outward, the cooling water in cavity layer 120 absorbs under the action of heat transfer from 110 heat of inner canister layer
Amount, then taken away heat by the mobilization of cooling water, realize being quickly cooled down for inner canister layer 110；In inner canister layer 110
Portion, close to inner canister layer 110 slag in the case where being quickly cooled down effect quick solidification, and then can fast quickly cooling along the inner wall of inner canister layer 110
But skull is formed, and the skull quickly formed is detached with inner canister layer 110, prevents high-temperature slag from occurring with slag ladle tank body 100
It bonds.It is worth noting that the high-temperature slag from blast furnace again can abbreviation blast furnace slag.
The above-mentioned skull by being cooled into a certain extent can keep the temperature the high-temperature slag of liquid, and interior
Tank layer 110 is cast iron layer, and the bonding coefficient between cast iron and high-temperature slag is smaller, to be not easy between inner canister layer 110 and skull
It bonds, and then facilitates skull to be detached with inner canister layer 110 in the process in pouring out for subsequent high temperature slag；But inner canister layer
The skull formed between 110 inner walls and high-temperature slag also unsuitable blocked up, the blocked up reduction that can lead to blast furnace utilization rate of skull, and
And blocked up skull is difficult to be crushed, and then influence the quick progress of blast furnace slag recycling production.
It is worth noting that the wall thickness of the inner canister can body section 111 of inner canister layer 110 is gradually reduced from top to bottom, inner canister can body
The wall thickness at 111 top of section is twice of 111 bottom wall thickness of inner canister can body section, and the wall thickness of the inner canister tank bottom section 112 of inner canister layer 110 is
It is uniformly arranged, and the wall thickness of inner canister tank bottom section 112 is identical as 111 bottom wall thickness of inner canister can body section, and then improves service life.
In the height direction, the high-temperature slag in inner canister layer 110 is remoter apart from liquid level, and the radiating condition of high-temperature slag is poorer, so
The wall thickness of inner canister can body section 111 from top to bottom can its thickness of reduction appropriate so that the high-temperature slag of lower section obtains faster
It is cooling, improve the radiating condition of 111 each section high-temperature slag of inner canister can body section of inner canister layer 110；At the same time, inner canister layer 110
Inner canister tank bottom section 112 be it is arc-shaped so that the radiating condition base of the 112 internal high temperature slag of inner canister tank bottom section of inner canister layer 110
This is identical, can be by 112 outside Homogeneouslly-radiating of inner canister tank bottom section, so the wall thickness of the inner canister tank bottom section 112 of inner canister layer 110 can
To be uniformly arranged.
In addition, the thickness of the can body section cavity 121 of cavity layer 120 is gradually reduced from top to bottom, in one side inner canister layer 110
High-temperature slag radiating condition with height reduce and be deteriorated；On the other hand, cooling water is in the case of same traffic, flow area
Its smaller flow velocity is faster, and then can accelerate the speed that cooling water takes away heat.The thickness of the can body section cavity 121 of cavity layer 120
Degree is gradually reduced from top to bottom can so that cooling water flow velocity is accelerated in lower layer's cavity layer 120, and then reinforce lower layer's cavity layer 120
To the cooling effect of inner canister layer 110.In addition, the thickness of tank bottom section cavity 122 is uniformly arranged, thickness is not more than can body section cavity
Thickness at 121 lowermost ends, the thickness of tank bottom section cavity 122 is equal to the thickness at 121 lowermost end of can body section cavity in the present embodiment
Degree so that the cooling water flowed in can body section cavity 121 uniformly cools down the high-temperature slag of inner canister tank bottom section 112 in inner canister layer 110,
High-temperature slag forms uniform skull in inner canister tank bottom section 112, when high-temperature slag is poured from slag ladle tank body 100, bottom
The skull in portion easier can be detached with inner canister tank bottom section 112；Because of the upward heat sink strip of high-temperature slag of inner canister tank bottom section 112
Part is worst, and skull formation difficulty is larger, so the thickness setting of tank bottom section cavity 122 is smaller, to accelerate the flowing of cooling water
Speed strengthens the cooling effect of inner canister tank bottom section 112 in inner canister layer 110, promotes 110 inner wall of inner canister layer and high temperature melting at the position
The formation of skull between slag.
Water inlet line 210 and the junction of inner canister can body section 111 and inner canister tank bottom section 112 are correspondingly arranged in the present embodiment,
And junction of the tube hub line 211 by inner canister can body section 111 and inner canister tank bottom section 112 that intake.It is interior in inner canister layer 110
The junction of tank can body section 111 and inner canister tank bottom section 112 is larger because of turning back, and the larger high-temperature slag of viscosity is easy to remain on this
Water inlet line 210 and the junction of inner canister can body section 111 and inner canister tank bottom section 112 are correspondingly arranged, can improve this by junction
The cooling effect of junction position high-temperature slag promotes the quick formation of the junction skull so that inner canister can body section after deslagging
111 and 112 junction of inner canister tank bottom section be not easy to remain high-temperature slag.
It is worth noting that the angle between water inlet tube hub line 211 and 111 outer wall of inner canister can body section is a, in water inlet pipe
The angle of heart line 211 and 112 outer wall of inner canister tank bottom section between the tangent line of junction is b, and a ＞ b, outside inner canister tank bottom section 112
The angle of wall and vertical direction is c, in the present embodiment, the relational expression is obtained by simulation and multiple actual fabrication experience：a
The size of=b+0.12 × c, a and b angle is calculated by the formula, and water inlet tube hub line 211 passes through according to above-mentioned angle
Arrangement so that the water inlet direction of water inlet line 210 is tilted slightly offset towards the direction of 111 outer wall of inner canister can body section.In the effect of gravity
Under, the cooling water for entering cavity layer 120 by water inlet line 210 has the tendency that moving downward, to avoid outside inner canister can body section 111
The cooling that cannot obtain cooling water at wall in time, by the water inlet direction of water inlet line 210 slightly offset towards 111 outer wall of inner canister can body section
Direction tilts so that more cooling waters can be to movement at 111 outer wall of inner canister can body section, to the inner canister can body of inner canister layer 110
High-temperature slag in section 111 is cooled down in time, promotes the shape of skull between 110 inner wall of inner canister layer and high-temperature slag at the position
At.Above-mentioned water inlet line 210 is provided with 4 at least provided with 3, in the present embodiment, uniform along 100 periphery of slag ladle tank body
Distribution.
It should be noted that 100 top of slag ladle tank body is provided with linkage section 140, between inner canister layer 110 and outer tank layer 130
It is fixedly connected by linkage section 140, the distance between the top of cavity layer 120 and the top of slag ladle tank body 100 are h, the range of h
For 60-120mm, h=100mm in the present embodiment, because the high-temperature slag radiating condition in inner canister layer 110 close to top is preferable,
So a certain distance is arranged between the top and slag ladle tank body 100 of cavity layer 120, the cooling water pair in cavity layer 120 is avoided
High-temperature slag close to 110 top of inner canister layer is cooled down, and is prevented on 110 inner wall of inner canister layer at 110 top of inner canister layer and molten
Blocked up skull is formed on slag liquid face.
In the present embodiment, outlet conduit includes upper water-out pipeline 221 and lower discharging tube road 222, wherein upper water-out pipeline 221
It is set to the top of outer tank layer 130, lower discharging tube road 222 is set to the bottom of outer tank layer 130.Upper water-out pipeline 221 is set to
The top of outer tank layer 130, it is ensured that the cooling water of flow regime cools down inner canister can body section 111, it is worth mentioning at this point that,
The distance between top of upper water-out pipeline 221 and cavity layer 120 is 10-20mm, in the present embodiment upper water-out pipeline 221 with it is empty
The distance between top of cavity layer 120 is 15mm；When cooling water enters the cavity layer 120 of the segment distance, mobility is poor to be led
It causes its thermal conductivity poor, and then reduces cooling effect of the cooling water to the high-temperature slag close to 110 top of inner canister layer, avoid top
Slag forms blocked up skull.
Lower discharging tube road 222 is set to the bottom of outer tank layer 130, on the one hand, can ensure the cooling water pair of flow regime
Inner canister tank bottom section 112 is cooled down so that 112 inside of inner canister tank bottom section of inner canister layer 110 forms certain thickness skull；It is another
Aspect, it is empty when the cooling water level in cavity layer 120 declines when lower discharging tube road 222 is set to the bottom of outer tank layer 130
It, can be first in the inner canister layer 110 of top with the gas heat insulating layer for sequentially forming no-cooling-water from top to bottom in cavity layer 120
High-temperature slag is kept the temperature, and the preferable upper layer high-temperature slag of radiating condition is avoided to form blocked up slag blanket；Lower layer in inner canister layer 110
High-temperature slag can continue cooling a period of time so that the poor lower layer's high-temperature slag of cooling condition continuously forms skull, from
And promote the homogenization of skull formation thickness.
After cooling a period of time, cavity layer 120 is emptied the cooling water in cavity layer 120 by lower discharging tube road 222,
Gassy in cavity layer 120 at this time is now filled with gas although inner canister layer 110 is that cast iron layer thermal conductivity is preferable
The thermal conductivity of cavity layer 120 is poor, most heat can be prevented to continue to conduct outward from inner canister layer 110, to realize
The insulation effect of cavity layer 120 avoids 110 inner wall of inner canister layer from forming blocked up skull, and then forms the skull of suitable thickness；It protects
The mobility for demonstrate,proving high-temperature slag, facilitates pouring out for high-temperature slag, improves the utilization rate of blast furnace slag, in addition the good flowing of blast furnace slag
Property blast furnace slag can be allowed to obtain better recycling production processing；By the heat preservation to high-temperature slag, also so that blast furnace slag is shown
Heat is fully used, and the waste of blast-furnace cement sensible heat resource is avoided.
Embodiment 2
In conjunction with Fig. 3, the substance of the present embodiment with embodiment 1, the difference is that：It is set on the inner wall of outer tank layer 130
It is equipped with outer tank insulating layer 131, when slag ladle tank body 100, which completes cooling procedure, carries out insulating process, outer tank insulating layer 131 can be into
One step improves heat insulation effect of the slag ladle tank body 100 to high-temperature slag.The making material of outer tank insulating layer 131 is clay brick or height
Aluminium brick is magnesia, and the material of outer tank insulating layer 131 is clay brick in the present embodiment.
Embodiment 3
The substance of the present embodiment with embodiment 1, the difference is that：The tip height of linkage section 140 is along slag ladle
Along being gradually increased to the direction of outer in body 100, the tip section of linkage section 140 is arc-shaped, and circular arc direction is upward so that slag
When tank 100 carries out deslagging, high-temperature slag can avoid the height that viscosity is larger by the arc-shaped outside deslagging of guiding role
Warm slag is bonded to during pouring out on 100 outer wall of slag ladle tank body, and slag ladle tank body 100 and deslagging workshop is caused to be difficult to clearly
Reason, and reduce the loss amount of blast furnace slag.
A kind of application method for slag ladle for blast furnace slag hot-loading and hot-conveying that above example is mentioned is：
Step 1: cooling treatment
Before slag ladle tank body 100 is packed into high-temperature slag, cooling water is injected into cavity layer 120 by water inlet line 210,
High-temperature slag is fitted into slag ladle tank body 100 again, cooling water cools down the high-temperature slag in slag ladle tank body 100 so that high
Warm slag rapidly cools to form skull on 110 inner wall of inner canister layer of slag ladle tank body 100；The cooling system of cooling treatment is：
(1) when 0-5min, the flow of cooling water is Q1, and the time is counted since when high-temperature slag pours into slag ladle tank body 100；
(2) when 5-10min, the flow of cooling water is Q2, and Q2=kQ1, k values are 0.2~0.3, are taken in the present embodiment
0.25。
Step 2: isothermal holding
After high-temperature slag forms skull on 110 inner wall of inner canister layer of slag ladle tank body 100, outlet conduit is by cavity layer 120
Interior cooling water empties, and gassy forms gas interlayer in cavity layer 120, and cavity layer 120 is to the high temperature melting in inner canister layer 110
Slag carries out isothermal holding.
Step 3: deslagging
Early period forms skull by cooling in 110 inner wall of inner canister layer, so the high-temperature slag of liquid is not easy in inner canister layer
It bonds, and then can easily pour high-temperature slag on 110 inner walls；And in time to inner canister layer 110 after cooling down
It is kept the temperature so that will not form blocked up skull on 110 inner wall of inner canister layer, facilitate after deslagging to shape on 110 inner wall of inner canister layer
At skull be crushed.
The present invention is described in detail above in conjunction with specific exemplary embodiment.It is understood, however, that can not take off
It is carry out various modifications in the case of from the scope of the present invention being defined by the following claims and modification.Detailed description and drawings
Should be to be considered only as it is illustrative and not restrictive, if there is any such modifications and variations, then they all will
It falls into the scope of the present invention described here.In addition, background technology is intended to Development Status and meaning in order to illustrate this technology,
It is not intended to limit the application field of the present invention or the application and the present invention.
Claims (10)
1. a kind of slag ladle for blast furnace slag hot-loading and hot-conveying, it is characterised in that：Including slag ladle tank body (100), water inlet line (210)
And outlet conduit；Slag ladle tank body (100) includes inner canister layer (110) and outer tank layer (130), inner canister layer (110) and outer tank layer (130)
Between be provided with cavity layer (120), inner canister layer (110) is cast iron layer；Water inlet line (210) is disposed through outer tank layer
(130) on, water inlet line (210) is connected with cavity layer (120), and outlet conduit is disposed through on outer tank layer (130), water outlet
Pipeline is connected with cavity layer (120), and cooling water is entered by water inlet line (210) after cavity layer (120) to be discharged by outlet conduit.
2. a kind of slag ladle for blast furnace slag hot-loading and hot-conveying according to claim 1, it is characterised in that：Inner canister layer (110)
The wall thickness of inner canister can body section (111) be gradually reduced from top to bottom, the wall thickness of the inner canister tank bottom section (112) of inner canister layer (110) is equal
It is even identical.
3. a kind of slag ladle for blast furnace slag hot-loading and hot-conveying according to claim 1, it is characterised in that：Water inlet line
(210) junction with inner canister can body section (111) and inner canister tank bottom section (112) is correspondingly arranged.
4. a kind of slag ladle for blast furnace slag hot-loading and hot-conveying according to claim 1, it is characterised in that：Outlet conduit includes
Upper water-out pipeline (221) and lower discharging tube road (222), wherein upper water-out pipeline (221) are set to the top of outer tank layer (130),
Lower discharging tube road (222) is set to the bottom of outer tank layer (130).
5. a kind of slag ladle for blast furnace slag hot-loading and hot-conveying according to claim 1, it is characterised in that：Cavity layer (120)
The distance between the top of top and slag ladle tank body (100) be h, the ranging from 60-120mm of h.
6. a kind of slag ladle for blast furnace slag hot-loading and hot-conveying according to claim 3, it is characterised in that：Water inlet tube hub line
(211) junction Jing Guo inner canister can body section (111) and inner canister tank bottom section (112).
7. a kind of slag ladle for blast furnace slag hot-loading and hot-conveying according to claim 4, it is characterised in that：Upper water-out pipeline
(221) it is 10-20mm with the distance between the top of cavity layer (120).
8. a kind of slag ladle for blast furnace slag hot-loading and hot-conveying according to claim 6, it is characterised in that：Water inlet tube hub line
(211) angle between inner canister can body section (111) outer wall is a, and water inlet tube hub line (211) and inner canister tank bottom section (112) are outside
Angle of the wall between the tangent line of junction is b, and a ＞ b.
9. according to a kind of slag ladle for blast furnace slag hot-loading and hot-conveying of claim 1-8 any one of them, it is characterised in that：Cavity
The thickness of the can body section cavity (121) of layer (120) is gradually reduced from top to bottom.
10. the application method of the slag ladle of above-mentioned blast furnace slag hot-loading and hot-conveying, it is characterised in that：It is preceding into cavity layer (120) using
It is passed through cooling water, and high-temperature slag is added in backward slag ladle body (100), quick shape between high-temperature slag and inner canister layer (110)
At skull, then the cooling water in cavity layer (120) is emptied again, the cavity layer (120) after emptying forms cavity insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810808875.2A CN108531673B (en) | 2018-07-19 | 2018-07-19 | Slag pot for hot charging and hot conveying of blast furnace slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810808875.2A CN108531673B (en) | 2018-07-19 | 2018-07-19 | Slag pot for hot charging and hot conveying of blast furnace slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108531673A true CN108531673A (en) | 2018-09-14 |
| CN108531673B CN108531673B (en) | 2020-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810808875.2A Expired - Fee Related CN108531673B (en) | 2018-07-19 | 2018-07-19 | Slag pot for hot charging and hot conveying of blast furnace slag |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913830A (en) * | 2018-10-12 | 2018-11-30 | 中冶节能环保有限责任公司 | A kind of slag ladle transported for melting casting residue heat insulating ability |
| CN109161619A (en) * | 2018-09-25 | 2019-01-08 | 中冶宝钢技术服务有限公司 | Heat preservation welding slag ladle and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673918A (en) * | 2012-04-13 | 2012-09-19 | 马钢(集团)控股有限公司 | Liquid slag delivery tank truck |
| CN204162732U (en) * | 2014-08-28 | 2015-02-18 | 天津市裕盛液压机械有限公司 | A kind of slag ladle |
| CN206635356U (en) * | 2016-12-29 | 2017-11-14 | 无锡巨力重工股份有限公司 | One kind welding slag ladle |
-
2018
- 2018-07-19 CN CN201810808875.2A patent/CN108531673B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102673918A (en) * | 2012-04-13 | 2012-09-19 | 马钢(集团)控股有限公司 | Liquid slag delivery tank truck |
| CN204162732U (en) * | 2014-08-28 | 2015-02-18 | 天津市裕盛液压机械有限公司 | A kind of slag ladle |
| CN206635356U (en) * | 2016-12-29 | 2017-11-14 | 无锡巨力重工股份有限公司 | One kind welding slag ladle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161619A (en) * | 2018-09-25 | 2019-01-08 | 中冶宝钢技术服务有限公司 | Heat preservation welding slag ladle and preparation method thereof |
| CN109161619B (en) * | 2018-09-25 | 2020-08-11 | 中冶宝钢技术服务有限公司 | Heat-preservation welding slag pot and manufacturing method thereof |
| CN108913830A (en) * | 2018-10-12 | 2018-11-30 | 中冶节能环保有限责任公司 | A kind of slag ladle transported for melting casting residue heat insulating ability |
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| Publication number | Publication date |
|---|---|
| CN108531673B (en) | 2020-09-04 |
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