CN220259489U - Crystallizer steel overflow treatment device - Google Patents
Crystallizer steel overflow treatment device Download PDFInfo
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- CN220259489U CN220259489U CN202320983384.8U CN202320983384U CN220259489U CN 220259489 U CN220259489 U CN 220259489U CN 202320983384 U CN202320983384 U CN 202320983384U CN 220259489 U CN220259489 U CN 220259489U
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- overflow
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 110
- 239000010959 steel Substances 0.000 title claims abstract description 110
- 239000007788 liquid Substances 0.000 claims description 12
- 239000000523 sample Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000009749 continuous casting Methods 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 abstract description 7
- 238000002425 crystallisation Methods 0.000 abstract description 2
- 230000008025 crystallization Effects 0.000 abstract description 2
- 238000005266 casting Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Continuous Casting (AREA)
Abstract
The utility model relates to the technical field of slab continuous casting crystallization, and discloses a crystallizer steel overflow treatment device, wherein the crystallizer comprises a crystallizer cover plate and a crystallizer upper opening, the treatment device comprises a protection steel plate, the area of the protection steel plate is smaller than that of the crystallizer cover plate, and the area of the protection steel plate is larger than that of the crystallizer upper opening; the protection steel plate is detachably connected with the cover plate of the crystallizer; the protection steel plate is provided with a first through hole, and the size and the position of the first through hole are matched with the upper opening of the crystallizer. According to the utility model, the detachable protection steel plate is additionally arranged on the crystallizer cover plate, so that when a steel overflow production accident occurs, the movable steel plate can be flexibly moved, the overflow cold steel can be rapidly cleaned, and the operation time for manually cleaning the cold steel is greatly shortened.
Description
Technical Field
The utility model relates to the technical field of slab continuous casting crystallization, in particular to a crystallizer steel overflow treatment device.
Background
The mould is the heart of the continuous casting machine. Pouring molten steel of the tundish into a crystallizer, initially condensing the molten steel into the shape of a casting blank in the crystallizer to generate a blank shell with a certain thickness, continuously drawing the blank shell out of a lower opening of the crystallizer, and entering a secondary cooling zone. The size of the shell of the casting blank is determined by the size of the inner cavity of the crystallizer. The size of the inner cavity of the crystallizer during casting is adjusted before casting according to the size requirement of the plate blank of the finished product.
The crystallizer had the following properties:
(1) The heat-conducting performance is good, and a blank shell with enough thickness can be formed rapidly;
(2) The structure has good structural rigidity and structural manufacturability, is convenient to process and manufacture, and is easy to assemble, disassemble and adjust;
(3) The wear resistance and the thermal fatigue resistance are better;
(4) Light weight so as to have a small inertial force when vibrating.
After the molten steel passes through the crystallizer, a blank shell with a certain thickness and a casting blank with a required section can be formed. Therefore, the crystallizer has good heat conductivity and rigidity and is not easy to deform; the weight is light to reduce the inertial force during vibration; the wear resistance of the inner surface is good so as to prolong the service life; the structure is simple and convenient to maintain and manufacture. The shape of the crystallizer can be divided into a straight crystallizer and an arc-shaped crystallizer. The direct crystallizer is used for vertical, vertical-bending and straight arc continuous casting machines, and the arc crystallizer is used for full arc and elliptic continuous casting machines. The junction structure is divided into: monolithic, tubular and modular crystallizers.
The arc adjustable crystallizer consists of frame, soft clamping device, water tank, copper plate, width regulating device, cooling water pipe, foot roller and other main equipment. The crystallizer of the modern large continuous casting machine is formed by combining four composite wall plates, each composite wall plate is provided with an inner wall and an outer wall, the inner wall is generally made of red copper with good heat conductivity and plasticity, the thickness is 20-40 mm, the roughness of the lower surface of the inner wall is required to reach 12.5-32, and the outer wall of the crystallizer is generally made of steel plates so as to ensure enough strength and rigidity.
A water gap for passing cooling water is arranged between the inner wall and the outer wall of the crystallizer, cooling water inlet and outlet pipes are respectively arranged on the four outer walls, a water inlet pipe and a water outlet pipe are arranged on a narrow panel of the slab crystallizer, and a plurality of water inlet pipes and water outlet pipes are uniformly used on a wide panel. The molten steel is cooled and solidified in the crystallizer to generate a blank shell, and then the blank shell is contracted and separated from the wall of the crystallizer to generate an air gap, so that the heat conducting property is greatly reduced, and uneven cooling of a casting blank is caused. In order to reduce the air gap and accelerate the growth of the blank shell, the lower opening of the crystallizer is slightly smaller than the section of the upper opening, which is called the reverse taper of the crystallizer.
When the steel overflow phenomenon occurs in the crystallizer, solid cold steel is hung around the crystallizer, or cold steel is bonded between the immersed nozzle and the copper plate, so that the danger of leakage is high. The reason for this is that the molten steel level in the crystallizer is too high or the molten steel is splashed too much, so that the molten steel is full, and the periphery of the crystallizer is wrapped by the molten steel.
In the casting process, due to the reasons of manual steel pressing operation skill, inclusion falling off, extrusion of casting blank bulging in the fan-shaped section and the like, molten steel in the crystallizer overflows, continuous casting of molten steel is not facilitated, serious production accidents such as steel leakage and the like are easily caused, and the overflowed cold steel needs to be quickly cleaned in the first time so as to ensure stable production. Because the volume of the cover plate of the crystallizer is larger, the cover plate is tightly adhered to the crystallizer after being covered by cold steel, the cleaning difficulty is high, and the crystallizer and a liquid level control probe of the crystallizer are easily damaged in the cleaning process, so that the economic benefit loss is larger, and the cover plate is extremely unfavorable for the production organization of a steel mill.
In view of the above, the utility model designs the overflow steel treatment device of the slab continuous casting crystallizer, and the movable steel plate is arranged on the cover plate of the crystallizer, so that when overflow steel production accidents occur, the movable steel plate can be flexibly moved and overflow cold steel can be rapidly cleaned, the operation time for manually cleaning the cold steel is greatly shortened, equipment such as the crystallizer and a liquid level control probe are prevented from being damaged, production accidents are prevented, economic losses are reduced, and the operation efficiency is improved.
Disclosure of Invention
The utility model aims to provide a steel overflow treatment device of a slab continuous casting crystallizer, which is characterized in that a movable steel plate is arranged on a cover plate of the crystallizer, so that when a steel overflow production accident occurs, the movable steel plate can be flexibly moved, overflowed cold steel can be rapidly cleaned, the operation time for manually cleaning the cold steel is greatly shortened, equipment such as the crystallizer and a liquid level control probe are prevented from being damaged, production accidents are prevented, economic losses are reduced, and the operation efficiency is improved.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the crystallizer overflow steel treatment device comprises a protection steel plate, wherein the area of the protection steel plate is smaller than that of the crystallizer cover plate, and the area of the protection steel plate is larger than that of the upper opening of the crystallizer;
the protection steel plate is detachably connected with the cover plate of the crystallizer;
the protection steel plate is provided with a first through hole, and the size and the position of the first through hole are matched with the upper opening of the crystallizer.
Further, the protection steel plate is a table body.
Further, the protection steel plate comprises a first bottom surface and a second bottom surface, the area of the first bottom surface is smaller than that of the second bottom surface, and the area of the first bottom surface is larger than that of the upper opening of the crystallizer.
Further, the first bottom surface fixed connection mounting panel, the area of mounting panel is greater than the area of first bottom surface, and the area of mounting panel is less than the area of crystallizer apron.
Further, the mounting plate is connected with the crystallizer cover plate through nuts and bolts.
Further, a washer is arranged between the bolt and the nut.
Further, the mounting plate is provided with a second through hole, and the size and the position of the second through hole are matched with the upper opening of the crystallizer.
Further, a liquid level probe is arranged on one side of the first through hole.
The utility model has the technical effects and advantages that:
1. according to the utility model, the detachable protection steel plate is additionally arranged on the crystallizer cover plate, so that when a steel overflow production accident occurs, the movable steel plate can be flexibly moved, the overflow cold steel can be rapidly cleaned, and the operation time for manually cleaning the cold steel is greatly shortened.
2. According to the utility model, the first bottom surface with relatively small area is contacted with the upper opening of the crystallizer by adopting the table-shaped protection steel plate, the second bottom surface is larger in area, so that the time for overflow steel to flow from the second bottom surface to the crystallizer cover plate and other equipment can be prolonged, meanwhile, a concave inclined surface is formed between the second bottom surface and the first bottom surface, the protection steel plate is conveniently lifted, and meanwhile, the protection steel plate is prevented from being bonded with the crystallizer cover plate.
3. According to the utility model, the liquid level probe is arranged on one side of the first through hole, so that the liquid level in the crystallizer can be conveniently monitored, and overflow steel can be timely treated.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
FIG. 1 is a sectional view of a crystallizer steel overflow treating apparatus of the present utility model;
FIG. 2 is a plan view of a crystallizer steel overflow treating apparatus of the present utility model.
Reference numerals: 1. a crystallizer cover plate; 2. a crystallizer upper port; 3. protecting the steel plate; 4. a first through hole; 5. a mounting plate; 6. a liquid level probe.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In order to ensure that a movable steel plate can be flexibly moved and overflowed cold steel can be rapidly cleaned when a steel overflow production accident occurs, the utility model discloses a steel overflow treatment device of a slab continuous casting crystallizer, fig. 1 is a cross-sectional view of the steel overflow treatment device of the crystallizer, as shown in fig. 1, the crystallizer comprises a crystallizer cover plate 1 and a crystallizer upper opening 2, the steel overflow treatment device of the crystallizer comprises a protection steel plate 3, the area of the protection steel plate 3 is smaller than the area of the crystallizer cover plate 1, and the area of the protection steel plate 3 is larger than the area of the crystallizer upper opening 2; the protection steel plate 3 is detachably connected with the crystallizer cover plate 1. Fig. 2 is a plan view of the crystallizer steel overflow treatment device of the present utility model, and as shown in fig. 2, the protection steel plate 3 is provided with a first through hole 4, and the size and position of the first through hole 4 are adapted to the upper opening 2 of the crystallizer.
Optionally, the protection steel plate 3 includes first bottom surface and second bottom surface, first bottom surface fixed connection mounting panel 5, and the area of mounting panel 5 is greater than the area of first bottom surface, and the area of mounting panel 5 is less than the area of crystallizer apron 1, and mounting panel 5 is provided with the second through-hole, and the size position adaptation crystallizer of second through-hole is gone up mouthful 2, and mounting panel 5 passes through nut and bolt and is connected with crystallizer apron 1.
Optionally, the protection steel plate 3 is the stage body, the area of first bottom surface is less than the second bottom surface, the area of first bottom surface is greater than the area of crystallizer upper shed 2, adopt stage shape protection steel plate 3, make the relatively less first bottom surface contact crystallizer upper shed 2 of area, the second bottom surface area is great, can increase the time that overflows the steel and flow to crystallizer apron 1 and other equipment from the second bottom surface, form sunken inclined plane between second bottom surface and the first bottom surface simultaneously, avoid protection steel plate 3 and crystallizer apron 1 or mounting panel 5 bonding when conveniently lifting protection steel plate 3.
Optionally, a gasket is arranged between the bolt and the nut and used for preventing the bolt and the nut from sliding along with the vibration of the cover plate 1 of the crystallizer.
Optionally, one side of the first through hole 4 is provided with a liquid level probe 6, so that the liquid level in the crystallizer is conveniently monitored, and overflow steel is treated in time.
The working principle of the utility model is as follows:
firstly, the first through hole 4, the second through hole and the upper opening 2 of the crystallizer are aligned, the mounting plate 5 and the cover plate 1 of the crystallizer are detachably connected by using bolts, nuts and gaskets, molten steel is injected into the crystallizer through the first through hole 4, the liquid level in the crystallizer is monitored by the liquid level probe 6, when a crystallizer steel overflow accident occurs, overflowed molten steel is mainly concentrated on the upper surface of the protection steel plate 3, after the machine is stopped, the crystallizer steel overflow treatment device adhered with molten steel is replaced by a clean crystallizer steel overflow treatment device by disassembling the bolts and the nuts, and the replaced crystallizer steel overflow treatment device is cleaned under the line.
In conclusion, the crystallizer steel overflow treatment device can protect equipment such as a crystallizer in the production process, reduce equipment damage, avoid overlong processing time of production accidents and high labor intensity of operators, realize rapid cleaning of overflow cold steel under abnormal conditions, and improve the efficiency of abnormal treatment. The utility model has the advantages of convenient operation, simple manufacture and low manufacturing cost.
Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present utility model can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (8)
1. The crystallizer steel overflow treatment device comprises a crystallizer cover plate (1) and a crystallizer upper opening (2), and is characterized in that,
the crystallizer comprises a protection steel plate (3), wherein the area of the protection steel plate (3) is smaller than that of a crystallizer cover plate (1), and the area of the protection steel plate (3) is larger than that of an upper opening (2) of the crystallizer;
the protection steel plate (3) is detachably connected with the crystallizer cover plate (1);
the protection steel plate (3) is provided with a first through hole (4), and the size and the position of the first through hole (4) are matched with the upper opening (2) of the crystallizer.
2. The crystallizer steel overflow treating device according to claim 1, wherein,
the protection steel plate (3) is a table body.
3. The crystallizer steel overflow treating device as claimed in claim 2 wherein,
the protection steel plate (3) comprises a first bottom surface and a second bottom surface, the area of the first bottom surface is smaller than that of the second bottom surface, and the area of the first bottom surface is larger than that of the upper opening (2) of the crystallizer.
4. A crystallizer steel overflow treating apparatus as claimed in claim 3 wherein,
the first bottom surface is fixedly connected with the mounting plate (5), the area of the mounting plate (5) is larger than that of the first bottom surface, and the area of the mounting plate (5) is smaller than that of the crystallizer cover plate (1).
5. The crystallizer steel overflow treating apparatus as claimed in claim 4 wherein,
the mounting plate (5) is connected with the crystallizer cover plate (1) through nuts and bolts.
6. The crystallizer steel overflow treating apparatus as claimed in claim 5 wherein,
a gasket is arranged between the bolt and the nut.
7. The crystallizer steel overflow treating apparatus as claimed in claim 4 wherein,
the mounting plate (5) is provided with a second through hole, and the size and the position of the second through hole are matched with the upper opening (2) of the crystallizer.
8. The crystallizer steel overflow treating apparatus as claimed in any one of claims 1 to 7 wherein,
one side of the first through hole (4) is provided with a liquid level probe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320983384.8U CN220259489U (en) | 2023-04-26 | 2023-04-26 | Crystallizer steel overflow treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320983384.8U CN220259489U (en) | 2023-04-26 | 2023-04-26 | Crystallizer steel overflow treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220259489U true CN220259489U (en) | 2023-12-29 |
Family
ID=89319063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320983384.8U Active CN220259489U (en) | 2023-04-26 | 2023-04-26 | Crystallizer steel overflow treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220259489U (en) |
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2023
- 2023-04-26 CN CN202320983384.8U patent/CN220259489U/en active Active
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