CN107254559B - A kind of cooling wall and its processing method - Google Patents
A kind of cooling wall and its processing method Download PDFInfo
- Publication number
- CN107254559B CN107254559B CN201710521657.6A CN201710521657A CN107254559B CN 107254559 B CN107254559 B CN 107254559B CN 201710521657 A CN201710521657 A CN 201710521657A CN 107254559 B CN107254559 B CN 107254559B
- Authority
- CN
- China
- Prior art keywords
- cooling
- water pipe
- cooling water
- cooling wall
- chill
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
- B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a kind of cooling wall and its processing methods, belong to cooling wall field.Processing technology of the invention, comprising the following steps: one, cooling wall Wooden Pattern Making；Two, sand mold production and the arrangement of cooling water pipe: cooling wall wooden model is put into sandbox, jolt ramming sand molding, takes out cooling wall wooden model shape forming cavity, it is intracavitary that cooling water pipe is arranged in the type；Cooling water pipe includes the first cooling water pipe, the second cooling water pipe and third cooling water pipe；Three, molten steel is injected into type chamber to start to cast；Four, it is cooled and shaped after casting.The present invention overcomes the shortcomings of that cooling wall is easy to happen cooling water pipe burn through, enhance cooling effect by being laid with multilayer cooling tube in cooling wall, and strict control process, it is effectively prevent cooling water pipe burn through, reaches the technical effect of " melt but not thaw " and " seamless fusion ".
Description
Technical field
The present invention relates to cooling wall technical fields, more specifically to a kind of cooling wall and its processing method.
Background technique
Largely built using cooling wall in blast furnace, as blast furnace cooling stave of new generation cast steel cooling wall at present it is general
Ductile iron cooling stave all over use is compared, and there is high high elongation percentage, tensile strength height, fusing point, thermal-shock resistance and entirety to lead
The advantages that good in thermal property.Cast-iron cooling wall matrix differs greatly with cooling water pipe material, by the limit of basic material and casting technique
System, there are the air gap of 0.1~0.3mm between matrix and cooling water pipe, causes thermal resistance to increase.However, cast steel cooling wall matrix with
Cooling water pipe material is same or similar, and it is seamless that special foundry engieering is integrated the outer wall of cooling water pipe with matrix fusion,
And inner wall is non-fusible, indeformable.Cast steel cooling wall matrix combines together with cooling pipe, eliminates base in ductile iron cooling stave
Gap between body and cooling tube, reduces thermal resistance, to improve the service life of blast furnace.With machinery dissection and metallography microscope
Sem observation fuses juncture area air-gap-free and interlayer, and tissue is metallurgical bonding tissue.
The basic material of cast steel cooling wall be the very high low-carbon alloy steel of fusing point, generally all select it is identical as basic material or
Similar mild steel hot rolled seamless steel tube is as cooling pipe, to obtain good heat-conducting effect.Due to the shape of cooling pipe
Complicated irregular shape is often designed to according to the specifically used occasion of cooling wall, so generally can only be raw using casting technique
It produces, however in casting process, even if cooling pipe temperature is reduced using common air cooling, the oily types of cooling such as cold, but by
It is very high in cast steel liquid steel temperature, still it is easy to make cooling pipe to deform and burn through, it especially may be in casting process
The danger that set off an explosion because the thermal current sharply expanded has little time discharge, this casting problem never obtains for a long time
It solves very well.Currently, preventing cooling water pipe burn through in the casting process of cast steel cooling wall, and make its " melt but not thaw ", is casting
The maximum difficult point in technique is made, there are mainly two types of anti-burn through measures:
(1) cooling water pipe burn through is prevented from outside.Cooling water pipe burn through is prevented from outside, one layer can be welded outside water pipe
With type internal densener cage, or in water pipe appearance brushing heat insulating coat.Although such method anti-antipriming pipe can melt to a certain extent
It wears, but if design is improper, it will the fusion rate between cooling water pipe and cooling wall ontology is seriously affected, the heat dissipation of water pipe is made
Ability greatly reduces, this also weakens the advantage of cast steel cooling wall good heat conductivity.
(2) cooling water pipe burn through is prevented from inside.From interior anti-antipriming pipe burn through, gas can be passed through inside cooling water pipe
Body/solid cooling medium.Nitrogen or other rare gas can be used in ventilation, and ventilation can prevent pipe inner wall from casting
It is oxidized in journey, and cooling water pipe is protected to make its " molten without wearing ".The cooling water pipe of nearly all shape can use ventilation
Mode cool down, all multi-parameter such as air pressure, flow velocity when but ventilating and need additional aeration equipment, and ventilating needs root
According to concrete condition, grope just obtain repeatedly.Pouring into solid cooling medium is that a kind of comparison is simple and can into cooling water pipe
The method leaned on, the requirement to the solid dielectric poured into is: heat storage capacity is big, there is stronger chilling action；Thermal expansion coefficient is small, heat
Stability is good；It does not chemically react, does not generate gas；Non-fusible, adhesion tube wall, easy to clean.Usually using multiple material
It mixes, still, the proportion of solid cooling medium is most important for realization " molten without wearing ", and by the shadow of many factors
It rings, gropes just obtain repeatedly.
By patent retrieval, the production method about cast steel cooling wall has relevant technical solution and discloses.Specially such as China
Sharp application number: 2014105920452, the applying date: on October 29th, 2014, invention and created name are as follows: a kind of blast furnace cast steel is cold
But wall and its manufacturing method, the steps include: step 1: one end of the cooling water pipe before bend pipe be blocked, from the another of cooling water pipe
Load high temperature resistant filler in one end；Cooling water pipe after filling high temperature resistant filler is pressed into elbow sequence on bending machine and carries out clod wash behaviour
Make；Step 2: the preparation of molding sand includes the preparation of facing sand and floor sand；Step 3: carrying out moulding using molding sand；Cast steel cooling wall
At 1610~1620 DEG C, cast temperature is controlled within 1550~1560 DEG C for molten steel tapping temperature of casting control；Step 4: subsequent
Processing.This application makes cooling water pipe and cast steel cooling wall ontology is seamless fuses together, cold in high-temperature molten steel packet tip-off
But the tube wall of water pipe will not burn through, but this application needs to configure special high temperature resistant filler, cause production cost on
It rises, a kind of more optimized scheme is still desired in industry to solve the problems, such as the burn through of cooling water pipe.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome, blast furnace cooling stave is easy to happen cooling water pipe burn through, influence cools down in the prior art
The deficiency of effect provides a kind of cooling wall and its processing method by strict control process and effectively prevent cooling water pipe
Burn through reaches the technical effect of " melt but not thaw " and " seamless fusion ", the cooling effect of effective guarantee cooling wall.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of processing method of cooling wall of the invention, comprising the following steps:
Step 1: cooling wall Wooden Pattern Making: making cooling wall wooden model according to the planform of cooling wall ontology；
Step 2: sand mold production and the arrangement of cooling water pipe: cooling wall wooden model is put into sandbox, jolt ramming sand molding,
Cooling wall wooden model shape forming cavity is then taken out, it is intracavitary that cooling water pipe is arranged in the type；
Start to cast Step 3: injecting molten steel into type chamber, molten steel flow direction is gradually to cast from bottom to top；
Step 4: being cooled and shaped after casting: first natural cooling 20 after casting~for 24 hours, then natural cooling 2 of unpacking~
3h, cooling wall sheet is body formed and takes out；
Step 5: carrying out sand removal processing to cooling wall ontology, sand is floated on removal surface；
Step 6: carrying out pressure testing test and the detection of logical ball to cooling wall ontology.
Further, the medial surface length and width dimensions for offering embedding brick slot in step 1 on cooling wall wooden model compare cooling wall
Ontology is big by 1.6%~1.8%, and lateral surface length and width dimensions of the cooling wall wooden model far from embedding brick slot are bigger than cooling wall ontology by 2.1%
~2.2%.
Further, the cooling water pipe lower part being laid in step 2 spaced points weldering along its length is fixed with chill.
Further, first calm before molten steel casting 3~5min in step 3.
Further, chill is cuboid laminated structure, and monolithic length is 5~6cm, and width is 4~5cm, cooling water
The total length L 1 of pipe lower part chill is the 1/35~1/20 of cooling water pipe development length L2.
Further, the thickness H1 of chill is the 1/2~2/3 of cooling water pipe wall thickness H 2.
Further, the chill of cooling water pipe lower part is obliquely installed, and angle α is 5 °~10 ° between horizontal plane.
Further, the adjacent two pieces of chill inclined directions in cooling water pipe lower part are opposite, and multi-disc chill is under cooling water pipe
Portion forms interval inverse type setting.
Further, molten steel cast temperature is 1500 DEG C~1580 DEG C in step 3.
A kind of cooling wall of the invention, including cooling wall ontology, the cooling wall ontology use processing method as described above
It is made.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1) processing method of a kind of cooling wall of the invention, by making in the ingenious spot welding sheet chill in cooling water pipe bottom
The cooperation such as factors such as itself and high temperature resistant filler in cast temperature, cooling water pipe, it is right while ensureing that chill is sufficiently completely melt
Cooling water pipe tube wall also has good protective effect, keeps its melt but not thaw, good seamless between final cooling wall ontology
Fusion, has ensured the good cooling effect of cooling wall ontology.
(2) processing method of a kind of cooling wall of the invention, chill are cuboid laminated structure, and the thickness H1 of chill is cold
But the 1/2~2/3 of water pipe wall thickness H2, the total length L 1 of cooling water pipe lower part chill be cooling water pipe development length L2 1/35~
1/20, the risk for being difficult to be completely melt between molten steel a period of time is largely avoided using this spacer sheet formula structure, is protected
Chill can be melted completely and by cooling water pipe burn through, be reached " melt but not thaw " and " seamless molten by barrier molten steel
The good result of conjunction ".
(3) a kind of processing method of cooling wall of the invention, the chill of cooling water pipe lower part are obliquely installed, and and horizontal plane
Between angle α be 5 °~10 °, adjacent two pieces of chill inclined directions are opposite, and it is anti-that multi-disc chill in cooling water pipe lower part forms interval
It is arranged to formula, when so that molten steel gradually being stretched upwards, the inclined direction ecto-entad along chill is gradually melted, and is on the one hand had
Help that chill is accelerated to be completely melt, another aspect cooling water pipe lower part in the width direction can in the temperature larger range of molten steel
Gradually formula cooling is obtained, prevents molten steel from finally especially avoiding top cooling water pipe burn through to cooling water pipe bottom and side wall
The high temperature at edge washes away.
Detailed description of the invention
Fig. 1 is a kind of processing method flow chart of cooling wall of the invention；
Fig. 2 is the position view of chill below cooling water pipe in the present invention；
Fig. 3 is the arrangement schematic diagram of chill below cooling water pipe in the present invention；
Fig. 4 is the pressure testing detecting state schematic diagram of cooling wall in the present invention；
Fig. 5 is the left view schematic diagram of Fig. 4；
Fig. 6 is the structural schematic diagram of manometric module in the present invention.
Label declaration in schematic diagram: 1, cooling wall ontology；101, embedding brick slot；102, the first cooling water pipe；111, chill；
2, manometric module；201, fixed ring；202, top tight pieces；203, connecting rod；204, top flat；205, gland；206, compressing member.
Specific embodiment
To further appreciate that the contents of the present invention, in conjunction with attached drawing, the present invention is described in detail.
The present invention will be further described with reference to the examples below.
Embodiment 1
A kind of processing method of the cooling wall of the present embodiment, comprising the following steps:
Step 1: cooling wall Wooden Pattern Making and detection: cooling wall wooden model is made according to the planform of cooling wall ontology 1,
And the shape and size precision of the cooling wall wooden model is detected, select qualified product to enter subsequent processing；The knot of cooling wall ontology 1
For structure as shown in figure 4, for by orientation in Fig. 4, the bottom surface of 1 lower part of cooling wall ontology is inward facing surface, cooling wall ontology 1 it is interior
Embedding brick slot 101 is offered on side, for inlaying refractory brick；It should be noted that offering embedding brick slot 101 on cooling wall wooden model
Medial surface length and width overall dimensions than cooling wall ontology 1 big 1.6%, lateral surface of the cooling wall wooden model far from embedding brick slot 101 is long
For wide overall dimensions than cooling wall ontology 1 big 2.1%, the pre-expanded design of cooling wall wooden model effectively prevents subsequent casting and cold
But because of the not high problem of 1 dimensional accuracy of cooling wall ontology caused by the contraction of molten steel during, help to ensure cooling wall sheet
The machining accuracy of body 1.
Step 2: sand mold production and the arrangement of cooling water pipe: will test qualified cooling wall wooden model and be put into suitable sandbox
In, and corresponding runner system is set, then jolt ramming sand molding, takes out cooling wall wooden model then formation and cooling wall in sandbox
Cooling water pipe, is arranged in that the type is intracavitary, and having been filled with inside cooling water pipe can be resistant to high temperature by the identical type chamber of 1 shape of ontology
Chrome ore specifically can be filled in filler material；Single-layer or multi-layer design can be used in the cooling water pipe of the present embodiment, is illustrated in figure 4 list
Layer pipe design, including the first cooling water pipe 102.
Step 3: runner system injects molten steel into type chamber and starts to cast, and communicates with type chamber after cooling water pipe is arranged
The casting gate for dividing running channel be located at the bottom of type chamber, molten steel flow direction is gradually to be cast from bottom to top type is intracavitary, such as Fig. 2 institute
Show that arrow direction is molten steel flow casting direction；Cast temperature control is 1500 °, and cast temperature is excessively high, and molten steel heat is excessive, pole
Easily by cooling water pipe burn through, and cast temperature is too low, and molten steel heat is too small, and is easy to cause not fusing or fusing for cooling water pipe
It is insufficient；Casting molten steel goes out (standing) 3min that first calms after casting ladle, then just initially enters running channel casting, can effectively be vented simultaneously
Impurity is settled, subsequent casting flaw is reduced；Using the casting mode of " both ends are slow, intermediate fast " when casting, first opens at a slow speed and pour, when
When molten steel is close to cooling water pipe position, accelerates casting, molten steel is allowed quickly to wrap up cooling water pipe, avoids generating cold shut phenomenon, work as steel
When liquid liquid level is more than cooling water pipe, gradually reduction of speed is cast, until changing by riser after-teeming after molten steel enters in riser until casting is tied
Beam.
It is worth noting that although in cooling water pipe filled with chrome ore etc can high temperature resistant filler, molten steel high temperature
Still easily make when casting cooling water pipe deform even burn through, especially cooling water pipe snakelike arrangement when, it is complex-shaped,
Bending angle is big, is easier to be deformed burn through problem when being washed away by molten steel, is to find always to cooling water pipe energy in the industry
The casting mode more preferably protected.
The present embodiment is the high temperature burn through for avoiding molten steel to cooling water pipe, is added using in 102 bottom of the first cooling water pipe
The mode of chill 111 is suitably cooled to close to the molten steel temperature of cooling water pipe, its height to cooling water pipe is alleviated
Temperature is washed away.
Be directly welded at cooling water pipe outer surface using chill in industry and cast early has application, but application effect in fact
Very different, the various aspects factor such as set-up mode, arrangement position of chill all has a significant impact final casting effect, row
Also often occur in the industry chill melted in casting process not exclusively, the overall mechanical properties of destroying cooling water pipe and cooling wall,
The problems such as promoting air gap generation, severe exacerbation cooling wall heat transfer property, causes many problems to production practices.Inventor is based on this
It has been devoted to ensure that molten steel can melt completely chill to how accurately to control research of the chill to molten steel cooling effect,
It is avoided that the good result that cooling water pipe burn through is reached to " melt but not thaw " and " seamless fusion " again.It is latent by many years
Heart research and practical proof, inventor have pleasantly surprised discovery finally！
Chill 111 in the present embodiment is laminated structure, specially cuboid laminated structure (such as Fig. 3), the thickness of chill 111
1/2 that H1 is cooling water pipe wall thickness H 2 is spent, the 111 monolithic length of chill of rectangular body plate shape is 6cm, width 4cm, cooling water pipe
Lower part uniform intervals are equipped at least one block of chill 111, and the total length L 1 of cooling water pipe lower part chill 111 is that cooling water pipe extends length
The 1/20 of L2 is spent, as shown in figure 3, the flat segments base point of the first cooling water pipe 102 is welded with 4 chills 111.Using this interval
Sheet-like structure largely avoids the risk for being difficult to be completely melt between molten steel a period of time, and inventor's multiple authentication finds this
Kind chip-size chill 111 can thoroughly melt when casting and noresidue.
Further to ensure chill 111 to the uniformity cooling effect of molten steel, prevent cooling water pipe occur section type burn through,
Phenomena such as state is different is fused with cooling wall ontology 1, as shown in Fig. 2, the chill 111 of cooling water pipe lower part is obliquely installed, and with
Angle α is 5 ° between horizontal plane, and as shown in figure 3, cooling water pipe lower part 111 inclined direction of adjacent two blocks of chills is opposite, multi-disc
Chill 111 forms interval inverse type setting in cooling water pipe lower part.Chill 111 is obliquely installed so that molten steel is gradually stretched upwards
When, the inclined direction ecto-entad along chill 111 is gradually melted, being completely melt for chill 111 is on the one hand helped speed up,
Another aspect cooling water pipe lower part can obtain gradually in the temperature larger range of (left and right directions in Fig. 2) molten steel in the width direction
Formula cooling, prevents molten steel finally by top cooling water pipe burn through, especially avoids the height to cooling water pipe bottom and sidewall edge
Temperature is washed away；And multi-disc chill 111 forms interval inverse type setting (as shown in Figure 3) in cooling water pipe lower part, has both prevented two panels cold
Iron 111 is overlapped influence, and it is completely melt, and carries out temperature drop appropriate to the molten steel of cooling water pipe two sides width direction, and molten steel exists
Temperature drop uniformity and temperature drop range all make moderate progress in range below cooling water pipe, to the effect for realizing that cooling water pipe is melted without wearing
It is very important.
The present embodiment is by making itself and cast temperature, cooling water pipe in the ingenious spot welding sheet chill 111 in cooling water pipe bottom
The cooperation such as factors such as interior high temperature resistant filler also has cooling water pipe tube wall while ensureing that chill 111 is sufficiently completely melt
Good protective effect keeps its melt but not thaw, and good seamless fusion, has ensured cooling wall between final cooling wall ontology 1
The good cooling effect of ontology 1.
Step 4: being cooled and shaped after casting: after casting first natural cooling for 24 hours, then the natural cooling 2h that unpacks, to disappear
It except casting internal stress, thinning microstructure, and prevents cooling wall ontology 1 from deforming, after molding, takes out cooling wall ontology 1 and do subsequent clear
Reason.
Step 5: carrying out sand removal processing to cooling wall ontology 1, sand is floated on removal surface, and recycles filling in cooling water pipe
Chrome ore；
Step 6: being detected to the progress pressure testing test of cooling wall ontology 1 and logical ball, again to cooling wall ontology 1 after test passes
Finishing processing is carried out, its surface quality is improved, finally obtains a kind of cooling wall.
When crossing ball test, the diameter of ball is 0.75~0.76 times of cooling water pipe internal diameter, and ball is put into cooling water pipe one end,
It was divulged information ball with high-pressure air hose, ball is made to fly out from the other end of cooling water pipe as qualification.The cooling wall that the present embodiment processes
Close to 100%, operating personnel does not have found to cool down the qualification rate of function admirable, pressure testing and ball test excessively through a large amount of practical proofs
Water pipe burn through or drainage, application security obtain effective guarantee.
The cooling wall that the present embodiment processes, including cooling wall ontology 1, as shown in figure 4, the medial surface of cooling wall ontology 1
The embedding brick slot 101 for inlaying refractory brick is offered, then offers corresponding water inlet respectively on the lateral surface of cooling wall ontology 1
And water outlet, the corresponding outside that cooling wall ontology 1 is extended to by inlet/outlet in the end of internal cooling water pipe, pressure testing test
Shi Ze is carried out using manometric module 2, and two cooperations of manometric module 2 are used as one group of use, is set in as shown in figure 5, respectively corresponding
The water inlet end of piece cooling water pipe and water outlet, the pressure drop by detecting water inlet end and water outlet are judged.
As shown in fig. 6, manometric module 2 includes the fixed ring 201 being set on the cooling water pipe of outside, the side of fixed ring 201
It is circumferentially surrounded on wall equipped with top tight pieces 202 (puller bolt specifically can be used), it is solid by connecting rod 203 above fixed ring 201
It is connected with gland 205, is equipped with compressing member 206 (hold-down bolt specifically can be used) above gland 205,205 lower section of gland is then equipped with top
Manometric module 2 is set on cooling water pipe by piece 204, when use, and top tight pieces 202 hold out against cooling water pipe side wall, top flat from multidirectional
204 are pressed in water inlet end/water outlet of cooling water pipe and are compressed by compressing member 206, are additionally provided with gasket in top flat 204, are pressed in
The top flat 204 of cooling water pipe water inlet end is connected with high-pressure water pipe, is filled the water by the high-pressure water pipe into the cooling water pipe, high pressure water
Pipe is equipped with pressure gauge；The top flat 204 for being pressed in the cooling water pipe water outlet is then connected with drainpipe, it is notable that this reality
Apply in example it is adjacent on the drainpipe set there are two load cell, and two load cells respectively with upper mechatronics.Specifically,
Pressure transmitter can be used in the load cell, and pressure signal is converted to analog signal and is transferred to host computer, and host computer will connect
The signal of receipts carries out display and automatic processing, and the hydraulic pressure of the cooling water pipe water inlet end and water outlet is compared, once pressure
Drop then illustrates there are the abnormal phenomenon such as leak inside cooling water pipe beyond a certain range, is additionally provided with warning device in host computer, once
It is abnormal then and alarm, reminds operating personnel.The present embodiment passes through the conversion of pressure signal and the automation number of host computer
According to processing, reading/calculating pressure data is directly removed without operating personnel, both alleviates labor intensity, in turn avoid reading because artificial
Detection error caused by mistake is taken/calculated, detection accuracy is improved.
Two load cells are arranged in the present embodiment on drainpipe, can be greatly compared with the single load cell of traditional setting
Ground improves the accuracy of pressure testing test, convenient for finding whether two load cells are in normal operating conditions, two surveys in time
When the pressure difference of element being pressed to exceed a certain range, then explanation has load cell to be in abnormality, at this time can be to load cell
Accuracy carries out detection confirmation, so can effectively avoid detecting caused by damaging discovery not in time because of single load cell and miss
Difference, two load cells are arranged jointly can still keep normally detecting when a certain load cell damages, and do not influence to detect
Progress.
Embodiment 2
A kind of processing method of the cooling wall of the present embodiment, substantially with embodiment 1, except that:
The medial surface length and width overall dimensions for offering embedding brick slot 101 in the present embodiment step 1 on middle cooling wall wooden model compare
Cooling wall ontology 1 big 1.8%, lateral surface length and width overall dimensions of the cooling wall wooden model far from embedding brick slot 101 are than cooling wall ontology 1
It is big by 2.2%.
The thickness H1 of chill 111 is the 2/3 of cooling water pipe wall thickness H 2 in the present embodiment, and the chill 111 of rectangular body plate shape is single
Leaf length is 5cm, and width 5cm, the total length L 1 of cooling water pipe lower part chill 111 is the 1/ of cooling water pipe development length L2
35, the chill 111 of cooling water pipe lower part is obliquely installed, and angle α is 10 ° between horizontal plane.
First calm before molten steel casting 5min in the present embodiment step 3, and molten steel cast temperature is 1580 DEG C.
First natural cooling 20h after casting in the present embodiment step 4, then the natural cooling 3h that unpacks.
Embodiment 3
A kind of processing method of the cooling wall of the present embodiment, substantially with embodiment 1, except that:
The medial surface length and width overall dimensions for offering embedding brick slot 101 in the present embodiment step 1 on middle cooling wall wooden model compare
Cooling wall ontology 1 big 1.7%, lateral surface length and width overall dimensions of the cooling wall wooden model far from embedding brick slot 101 are than cooling wall ontology 1
It is big by 2.2%.
The 111 monolithic length of chill of rectangular body plate shape is 5.5cm, width 4.5cm, cooling water pipe lower part in the present embodiment
The total length L 1 of chill 111 is the 1/30 of cooling water pipe development length L2, and the chill 111 of cooling water pipe lower part is obliquely installed, and
Angle α is 8 ° between horizontal plane.
First calm before molten steel casting 4min in the present embodiment step 3, and molten steel cast temperature is 1550 DEG C.
First natural cooling 22h after casting in the present embodiment step 4, then the natural cooling 2.5h that unpacks.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (8)
1. a kind of processing method of cooling wall, which comprises the following steps:
Step 1: cooling wall Wooden Pattern Making: making cooling wall wooden model according to the planform of cooling wall ontology (1)；
Step 2: sand mold production and the arrangement of cooling water pipe: cooling wall wooden model being put into sandbox, jolt ramming sand molding, then
Cooling wall wooden model shape forming cavity is taken out, it is intracavitary that cooling water pipe is arranged in the type；The cooling water pipe lower part of laying is along its length
Spaced points weldering is fixed with chill (111)；Chill (111) be cuboid laminated structure, monolithic length be 5~6cm, width be 4~
5cm, the total length L 1 of cooling water pipe lower part chill (111) are the 1/35~1/20 of cooling water pipe development length L2；
Start to cast Step 3: injecting molten steel into type chamber, molten steel flow direction is gradually to cast from bottom to top；
Step 4: being cooled and shaped after casting: first natural cooling 20 after casting~for 24 hours, then the 2~3h of natural cooling that unpacks, it is cold
But wall ontology (1) is formed and is taken out；
Step 5: carrying out sand removal processing to cooling wall ontology (1), sand is floated on removal surface；
Step 6: carrying out pressure testing test and the detection of logical ball to cooling wall ontology (1).
2. a kind of processing method of cooling wall according to claim 1, it is characterised in that: in step 1 on cooling wall wooden model
The medial surface length and width dimensions for offering embedding brick slot (101) are bigger by 1.6%~1.8% than cooling wall ontology (1), and cooling wall wooden model is remote
Lateral surface length and width dimensions from embedding brick slot (101) are bigger by 2.1%~2.2% than cooling wall ontology (1).
3. a kind of processing method of cooling wall according to claim 1, it is characterised in that: in step 3 before molten steel casting first
Calm 3~5min.
4. a kind of processing method of cooling wall according to claim 1, it is characterised in that: the thickness H1 of chill (111) is
The 1/2~2/3 of cooling water pipe wall thickness H 2.
5. a kind of processing method of cooling wall according to claim 1, it is characterised in that: the chill of cooling water pipe lower part
(111) it is obliquely installed, and angle α is 5 °~10 ° between horizontal plane.
6. a kind of processing method of cooling wall according to claim 5, it is characterised in that: cooling water pipe lower part is two pieces adjacent
Chill (111) inclined direction is opposite, and multi-disc chill (111) forms interval inverse type setting in cooling water pipe lower part.
7. the processing method of described in any item a kind of cooling walls according to claim 1~6, it is characterised in that: steel in step 3
Liquid cast temperature is 1500 DEG C~1580 DEG C.
8. a kind of cooling wall, including cooling wall ontology (1), it is characterised in that: the cooling wall ontology (1) is using such as claim 1
~7 described in any item processing methods are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521657.6A CN107254559B (en) | 2017-06-30 | 2017-06-30 | A kind of cooling wall and its processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521657.6A CN107254559B (en) | 2017-06-30 | 2017-06-30 | A kind of cooling wall and its processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107254559A CN107254559A (en) | 2017-10-17 |
| CN107254559B true CN107254559B (en) | 2018-12-04 |
Family
ID=60023603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710521657.6A Active CN107254559B (en) | 2017-06-30 | 2017-06-30 | A kind of cooling wall and its processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107254559B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111100962B (en) * | 2020-01-09 | 2021-07-30 | 鞍钢重型机械有限责任公司 | Blast furnace cooling wall with detachable lifting ring and preparation method thereof |
| CN114959140A (en) * | 2022-07-02 | 2022-08-30 | 南京金桓电子科技有限公司 | Integrated seamless cooling wall for blast furnace |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1213822C (en) * | 2001-12-14 | 2005-08-10 | 钢铁研究总院 | Non-thermal-resistance cast steel cooling wall and casting method |
| CN2527568Y (en) * | 2002-01-25 | 2002-12-25 | 安阳钢铁集团有限责任公司 | Cast steel cooling wall for blast furnace |
| CN1187151C (en) * | 2002-02-09 | 2005-02-02 | 安阳钢铁集团有限责任公司 | Production method of built-in water-cooling channel cast steel component |
| CN100457923C (en) * | 2006-03-31 | 2009-02-04 | 南京钢铁联合有限公司 | Low thermal resistance cast-iron cooling wall and manufacturing method thereof |
| CN101007341A (en) * | 2007-01-26 | 2007-08-01 | 李立 | Spring chill clamp for casting and its manufacturing technology |
| CN104293994B (en) * | 2014-10-29 | 2016-08-24 | 马鞍山市润通冶金材料有限公司 | A kind of casting steel cooling wall in blast furnace and manufacture method thereof |
-
2017
- 2017-06-30 CN CN201710521657.6A patent/CN107254559B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107254559A (en) | 2017-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8096346B2 (en) | Method for casting high-power wind turbine base with ductile iron | |
| CN104399881A (en) | Casting method for steel casting of bearing pedestal of low-speed diesel engine for large-cylinder-diameter ship | |
| CN107254559B (en) | A kind of cooling wall and its processing method | |
| CN102424872A (en) | Method for patching damaged blast furnace hot air pipeline inner liner in hot state | |
| CN209024572U (en) | A kind of air-cooled sow | |
| CN107083462B (en) | A kind of blast furnace cooling stave and its processing technology that multilayer is cooling | |
| CN104889350A (en) | Round ingot die and round ingot manufacturing method | |
| CN103276130A (en) | Maintenance method for air leakage from pipeline of hot-air system of blast furnace | |
| CN109161622A (en) | A kind of blast furnace cooling stave and its manufacturing method | |
| CN110527769B (en) | Method for judging residual thickness of carbon brick in blast furnace hearth | |
| CN105458225B (en) | A kind of bimetallic alloy hammers casting method into shape | |
| CN101380674B (en) | Ladle wall permanent layer repairing method | |
| CN104858365A (en) | Integral casting production method of water-cooled furnace mouth | |
| Li et al. | Severe accidental water vapour explosions in a foundry in China in 2012 | |
| CN110961577A (en) | Method for solving shrinkage porosity of investment casting aluminum alloy casting | |
| CN1028726C (en) | Casting method of reinforced pouring pipe | |
| CN204381354U (en) | A kind of external refining ladle | |
| CN101187530A (en) | Submerged arc furnace blanking column and its production method | |
| CN102134621A (en) | Blast furnace iron notch patching method | |
| CN202667631U (en) | Composite safety mark for air brick | |
| CN104353820B (en) | A kind of hot-metal bottle permanent layer manufacture method | |
| CN203083368U (en) | Novel furnace door fragmentation-proof weatherstrip brick | |
| CN206276726U (en) | Batch the overall at the uniform velocity cooling controller of furnace drum | |
| CN103008626B (en) | For the method for the high temperate zone liquid core shake out of large extra thick plate blank | |
| CN221620831U (en) | Ladle slag line masonry structure |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 243000 Anhui province Ma'anshan City Mountain Industrial Zone Patentee after: Ma'anshan Runtong Heavy Industry Technology Co.,Ltd. Address before: No. 118 Anhui city of Ma'anshan province ginkgo Avenue 243000 Cihu hi tech Industrial Development Zone Patentee before: MAANSHAN RUNTONG METALLURGY MATERIAL Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Cooling stave and its processing method Effective date of registration: 20210909 Granted publication date: 20181204 Pledgee: Ma'anshan branch of Bank of China Ltd. Pledgor: Ma'anshan Runtong Heavy Industry Technology Co.,Ltd. Registration number: Y2021980009025 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A kind of cooling wall and its processing method Effective date of registration: 20220830 Granted publication date: 20181204 Pledgee: Ma'anshan branch of Bank of China Ltd. Pledgor: Ma'anshan Runtong Heavy Industry Technology Co.,Ltd. Registration number: Y2022980014102 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |