CN114182060A - Automatic charging control system and control method for converter charging materials - Google Patents
Automatic charging control system and control method for converter charging materials Download PDFInfo
- Publication number
- CN114182060A CN114182060A CN202111506088.0A CN202111506088A CN114182060A CN 114182060 A CN114182060 A CN 114182060A CN 202111506088 A CN202111506088 A CN 202111506088A CN 114182060 A CN114182060 A CN 114182060A
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- Prior art keywords
- converter
- control system
- hot metal
- charging
- axis
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 34
- 229910052742 iron Inorganic materials 0.000 claims description 17
- 239000002699 waste material Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 4
- 238000003723 Smelting Methods 0.000 abstract description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/466—Charging device for converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses an automatic charging control system for a converter charging material, which is applied to charging material charging equipment, wherein the charging equipment comprises a crown block, a hoisting trolley, a scrap steel hopper and a hot metal ladle; the overhead traveling crane main hook/auxiliary hook lifting mechanism, the overhead traveling crane main beam running mechanism and the trolley running mechanism are respectively provided with a position sensing instrument and a counting instrument, and the position sensing instrument and the counting instrument are in signal connection with the control system through signal lines. The invention also discloses a control method of the control system. By adopting the technical scheme, the defects of the prior art are overcome, the furnace burden of the converter can be accurately lifted and added, the manual operation errors are avoided, the potential safety hazards are avoided, the automation degree of furnace burden adding in the converter smelting process is improved, and the production efficiency and the safety are further improved.
Description
Technical Field
The invention belongs to the technical field of converter production processes, and relates to a control technology for charging materials (molten iron and scrap steel) into a converter. More particularly, the invention relates to an automatic feeding control system for converter feeding.
Background
In the prior art, a crown block in converter charging material adding equipment is mainly observed by a post operator with naked eyes. In the hoisting process, the material lifting height and the walking distance can only be observed by eyes of an operator, and the material is hoisted by feeling; the operation is carried out according to experience and feeling when the lifted materials rise to the height and the angles of the iron ladle and the scrap steel bucket; more serious is the problem of the moisture of the charge or the sealing equipment, etc., with the danger of blasting. The main disadvantages of the prior art are:
firstly, the production field environment is complex, the sight is unclear, the height of a hanging seat and a seat is high, the post operators are easy to judge by mistake, the ladle (tank) seat is not inclined correctly, and equipment accidents are easy to happen;
secondly, the angle of the lifting and the base is not well controlled when the lifting and the base are added with iron or steel scrap in the furnace, and the lifting and the base can not be accurately controlled;
thirdly, the molten metal is lifted, and particularly, blasting danger exists in the process of iron charging, so that serious potential safety hazards exist for drivers.
Disclosure of Invention
The invention provides an automatic charging control system for a converter charging material, and aims to realize safe, accurate and efficient charging of the charging material.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention relates to an automatic charging control system for a converter charging material, which is applied to charging equipment, wherein the charging equipment comprises a crown block, a hoisting trolley, a scrap steel bucket and a hot metal ladle; the crane main hook/auxiliary hook lifting mechanism, the crane main beam running mechanism and the crane trolley running mechanism are respectively provided with a position sensing and counting instrument, and the position sensing and counting instrument is in signal connection with the control system through a signal line.
The control system is provided with position display equipment of a crown block main hook/auxiliary hook lifting mechanism, a crown block main beam running mechanism and a trolley running mechanism.
And a converter rotation angle sensing and counting instrument is arranged on the converter and is in signal connection with the control system through a signal line.
And (4) counting the coordinates of the reference coordinate system at each lifting point, and setting a certain time limit to ensure the accuracy of the time control of charging and charging.
The coordinates are set as:
1) taking a main beam of the overhead travelling crane as a Y axis of a reference coordinate system;
2) taking the running track of the trolley as the Y axis of a reference coordinate system;
3) and a Z axis of a coordinate system taking the lifting track of the main hook/the auxiliary hook as a reference.
The origin of the Z axis is the intersection point of the Z axis and the ground plane.
In order to achieve the same purpose as the technical scheme, the invention also provides a control method of the converter charging automatic feeding control system, and the technical scheme is that the control method comprises the following steps:
step 1: transporting the scrap steel bucket to a hoisting point;
step 2: the converter rotates to an included angle of 55-60 degrees with the Z axis, and the rotating direction faces to the scrap steel bucket which is transported in place
And step 3: the waste steel bucket is lifted to be level with the converter mouth, and the waste steel bucket extends forwards into the converter mouth;
and 4, step 4: the auxiliary hook is slowly lifted, so that the scrap steel bucket inclines towards the converter by 40 degrees, keeps 20-30 s after the scrap steel bucket inclines to the converter, and then is withdrawn from the scrap steel bucket;
and 5: hoisting the hot metal ladle to a platform;
step 6: the hot metal ladle is descended to be level with the converter mouth, and the converter is rotated to form an included angle of 40 degrees with the Z axis;
and 7: the auxiliary hook continuously and slowly rises, and the converter mouth slowly and slowly swings downwards; when the auxiliary hook raises the molten iron tank to the horizontal, the furnace mouth also rotates to form an included angle of 60 degrees with the Z axis, the molten iron is mixed with water for 70s, and then the molten iron tank is withdrawn;
and 8: after the iron is added, the hot metal ladle is automatically withdrawn, and the auxiliary hook descends to withdraw from the groove and is automatically placed on the hot metal ladle car.
By adopting the technical scheme, the furnace burden feeding device overcomes the defects of the prior art, can accurately lift and feed furnace burden into a converter, avoids manual operation errors, avoids potential safety hazards, improves the automation degree of furnace burden feeding in converter smelting, and further improves the production efficiency and safety.
Drawings
The contents of the drawings are briefly described as follows:
FIG. 1 is a schematic diagram of the control process of the invention, namely the hoisting state of a scrap steel bucket in step 1;
FIG. 2 is a schematic view showing the inclined state of the converter in step 2 of the above process;
FIG. 3 is a schematic view showing a state where the scrap box is ready to be inserted into the furnace opening in step 3 of the above process;
FIG. 4 is a schematic view showing the tilting and extending state of the scrap box in step 4 of the above process;
FIG. 5 is a schematic view of the handling state of the molten iron tank in step 5 of the above process;
FIG. 6 is a schematic view showing the molten iron tank lowered to be flush with the taphole in step 6 of the above process;
FIG. 7 is a schematic view showing a state in which molten iron is charged in the molten iron tank in step 7 of the above process;
fig. 8 is a schematic view showing the state where the molten iron tank is exited to be ready for carrying away in step 8 of the above process.
Labeled as:
1. the device comprises a waste steel bucket 2, a converter 3, a hot metal ladle 4, a main hook 5, an auxiliary hook 6 and a hot metal ladle car.
Detailed Description
The following detailed description of the embodiments of the present invention will be given in order to provide those skilled in the art with a more complete, accurate and thorough understanding of the inventive concept and technical solutions of the present invention.
The working state of the invention as shown in fig. 1 to 8 is the working state of the automatic charging control system of the converter 2, and is applied to charging equipment, and the charging equipment comprises a crown block, a crane trolley, a scrap steel bucket 1 and a hot metal ladle 3.
In order to overcome the problems and defects of the prior art and realize the invention aim of safely, accurately and efficiently adding furnace charge, the invention adopts the technical scheme that:
as shown in fig. 1 to 8, in the automatic charging control system for converter charging of the present invention, position sensing and counting instruments are respectively disposed on the lifting mechanism of the main hook 4/the auxiliary hook 5 of the crown block, the running mechanism of the main beam of the crown block, and the running mechanism of the trolley, and the position sensing and counting instruments are in signal connection with the control system through signal lines.
The control system is provided with position display equipment of a crown block main hook/auxiliary hook lifting mechanism, a crown block main beam running mechanism and a trolley running mechanism.
According to the invention, the main hook 4 and the auxiliary hook 5 of the overhead traveling crane are lifted, the main car runs (left and right), and the trolley runs (front and back) to be installed and counted and displayed, so that the traveling crane lifting materials are automatically controlled by using the coordinate point, the defects of the prior art are overcome, the lifting can be accurately carried out, the human misoperation is avoided, and the potential safety hazard is avoided.
And a converter rotation angle sensing and counting instrument is arranged on the converter 2 and is in signal connection with the control system through a signal line.
And (4) counting the coordinates of the reference coordinate system at each lifting point, and setting a certain time limit to ensure the accuracy of the time control of charging and charging. The production rhythm is prevented from being influenced, and the production efficiency of adding furnace charge into the converter 2 is improved.
The coordinates are set as:
1. taking a main beam of the overhead travelling crane as a Y axis of a reference coordinate system;
2. taking the running track of the trolley as the Y axis of a reference coordinate system;
3. and taking the lifting track of the main hook/the auxiliary hook as the Z axis of the reference coordinate system.
The origin of the Z axis is the intersection point of the Z axis and the ground plane.
Coordinate values of all lifting points need to be calibrated; the Y axis of the coordinate with the main beam of the overhead traveling crane as a reference coordinate indicates the coordinate value of the running position of the main beam of the overhead traveling crane; the Y axis with the running track of the trolley as a reference coordinate indicates the coordinate value of the running position of the trolley on the main beam of the overhead travelling crane; and marking a Z axis by taking the ground plane as a reference, wherein the Z axis is the lifting height value of the main hook/the auxiliary hook.
In order to achieve the same purpose as the technical scheme, the invention also provides a control method of the converter charging automatic feeding control system, and the technical scheme is that the control method comprises the following steps:
step 1: the scrap steel bucket 1 is transported to a lifting point;
step 2: the converter 2 rotates to an included angle of 55-60 degrees with the Z axis, and the rotating direction faces the scrap steel bucket 1 which is transported in place
And step 3: the scrap steel bucket 1 is lifted to be flush with the furnace mouth of the converter 2, and the scrap steel bucket 1 extends forwards into the furnace mouth of the converter 2;
and 4, step 4: the auxiliary hook 5 is slowly lifted, so that the waste steel bucket 1 inclines towards the converter 2 by 40 degrees, keeps 20-30 seconds after the waste steel bucket inclines to the proper position, and then is withdrawn from the waste steel bucket 1;
and 5: the hot metal ladle 3 is hoisted to the platform firstly;
step 6: the hot metal ladle 3 is descended to be level with the furnace mouth of the converter 2, and the converter 2 rotates to form an included angle of 40 degrees with the Z axis;
and 7: the auxiliary hook 5 continuously and slowly rises, and the converter mouth of the converter 2 slowly and slowly swings downwards; when the auxiliary hook 5 lifts the hot metal ladle 3 to be horizontal, the furnace mouth also rotates to form an included angle of 60 degrees with the Z axis, the hot metal is mixed with water for 70s, and then the hot metal ladle 3 is withdrawn;
and 8: after the iron is added, the hot metal ladle 3 is automatically withdrawn, and the auxiliary hook 5 descends to withdraw from the groove and is automatically placed on the hot metal ladle car 6.
Specifically, the method comprises the following steps:
marking out coordinate values of all points, inputting the coordinate values into running data of the crown block, lifting the main hook/the auxiliary hook into a certain safety area, and lifting the main hook/the auxiliary hook at a specified coordinate position;
firstly adding scrap steel, entering a scrap steel adding mode, automatically shaking a converter 2 to 55-60 degrees, hanging a scrap steel hopper 1 to be level with a furnace mouth, extending the front edge of the scrap steel hopper 1 into the furnace mouth, slowly lifting an auxiliary hook 5 for about 3.5 meters to enable the scrap steel hopper 1 to incline by 40 degrees, and withdrawing the scrap steel hopper 1 after 20-30 seconds of use;
in the iron adding mode, a hot metal ladle is lifted to a platform and is descended to be level with a furnace mouth, the converter 2 automatically shakes to about 40 degrees, the auxiliary hook 5 descends to automatically hook forwards, then iron is added, the auxiliary hook 5 continuously and slowly ascends, and the furnace mouth also slowly shakes along with the auxiliary hook;
when the auxiliary hook 5 raises the hot metal ladle to the horizontal, the furnace mouth is also shaken to about 60 degrees, the hot metal is automatically withdrawn after the hot metal is completely added for about 70s, and simultaneously the auxiliary hook 5 descends to withdraw from the groove and is automatically placed on the hot metal ladle car.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (7)
1. The utility model provides a converter is gone into automatic control system that adds of furnace charge, is applied to into furnace charge and adds equipment, add equipment include overhead traveling crane, trolley, scrap steel fill (1), hot metal bottle (3), its characterized in that: the overhead traveling crane main hook/auxiliary hook lifting mechanism, the overhead traveling crane main beam running mechanism and the trolley running mechanism are respectively provided with a position sensing instrument and a counting instrument, and the position sensing instrument and the counting instrument are in signal connection with the control system through signal lines.
2. The automatic charging control system for the converter charging material according to claim 1, characterized in that: the control system is provided with position display equipment of a crown block main hook/auxiliary hook lifting mechanism, a crown block main beam running mechanism and a trolley running mechanism.
3. The automatic charging control system for the converter charging material according to claim 1, characterized in that: and a converter rotation angle sensing and counting instrument is arranged on the converter and is in signal connection with the control system through a signal line.
4. The automatic charging control system for the converter charging material according to claim 1, characterized in that: and (4) counting the coordinates of the reference coordinate system at each lifting point, and setting a certain time limit to ensure the accuracy of the time control of charging and charging.
5. The automatic charging control system of the converter charging material according to claim 4, characterized in that: the coordinates are set as:
1) taking a main beam of the overhead travelling crane as a Y axis of a reference coordinate system; taking the running track of the trolley as the Y axis of a reference coordinate system; and taking the lifting track of the main hook/the auxiliary hook as the Z axis of the reference coordinate system.
6. The automatic charging control system of the converter charging material according to claim 5, characterized in that: the origin of the Z axis is the intersection point of the Z axis and the ground plane.
7. The method for controlling an automatic charging control system for a converter according to any one of claims 1 to 6, characterized in that: the control method comprises the following processes:
step 1: the scrap steel bucket (1) is transported to a lifting point;
step 2: the converter (2) rotates to an included angle of 55-60 degrees with the Z axis, and the rotating direction faces to the scrap steel bucket (1) which is loaded and transported in place
And step 3: the waste steel bucket (1) is lifted to be level with the furnace mouth of the converter (2), and the waste steel bucket (1) extends forwards into the furnace mouth of the converter (2);
and 4, step 4: the auxiliary hook is slowly lifted, so that the waste steel hopper (1) inclines towards the converter (2) by 40 degrees, keeps 20-30 seconds after the waste steel hopper inclines to the right position, and then is withdrawn from the waste steel hopper (1);
and 5: the hot metal ladle (3) is hoisted to the platform firstly;
step 6: the hot metal ladle (3) is descended to be level with the furnace mouth of the converter (2), and the converter (2) rotates to form an included angle of 40 degrees with the Z axis;
and 7: the auxiliary hook continuously and slowly rises, and the furnace mouth of the converter (2) slowly and slowly swings downwards; when the auxiliary hook raises the hot metal ladle (3) to the horizontal, the furnace mouth also rotates to form an included angle of 60 degrees with the Z axis, the hot metal is mixed with water for 70s, and then the hot metal ladle (3) is withdrawn;
and 8: after the iron is added, the hot metal ladle (3) is automatically withdrawn, and the auxiliary hook descends to withdraw from the groove and is automatically placed on the hot metal ladle car (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111506088.0A CN114182060A (en) | 2021-12-10 | 2021-12-10 | Automatic charging control system and control method for converter charging materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111506088.0A CN114182060A (en) | 2021-12-10 | 2021-12-10 | Automatic charging control system and control method for converter charging materials |
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| Publication Number | Publication Date |
|---|---|
| CN114182060A true CN114182060A (en) | 2022-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111506088.0A Pending CN114182060A (en) | 2021-12-10 | 2021-12-10 | Automatic charging control system and control method for converter charging materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702078A (en) * | 2016-12-19 | 2017-05-24 | 中冶京诚工程技术有限公司 | Converter charging device and method |
| CN107236840A (en) * | 2017-07-12 | 2017-10-10 | 中冶南方工程技术有限公司 | Converter adds steel scrap device |
| CN207210470U (en) * | 2017-08-16 | 2018-04-10 | 唐山钢铁国际工程技术股份有限公司 | A kind of automatic iron making control system of pneumatic steelmaking |
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| KR20190073875A (en) * | 2017-12-19 | 2019-06-27 | 주식회사 포스코 | Pre-Heating Apparatus for scrap |
| CN110442090A (en) * | 2019-01-18 | 2019-11-12 | 湖南师范大学 | A kind of steel-making whole process materials stream informationization method based on Internet of Things |
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-
2021
- 2021-12-10 CN CN202111506088.0A patent/CN114182060A/en active Pending
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| CN208791042U (en) * | 2018-07-19 | 2019-04-26 | 山西建龙实业有限公司 | A kind of stokehold overhead traveling crane auto-coupling |
| CN110442090A (en) * | 2019-01-18 | 2019-11-12 | 湖南师范大学 | A kind of steel-making whole process materials stream informationization method based on Internet of Things |
| CN111560489A (en) * | 2019-01-29 | 2020-08-21 | 宝山钢铁股份有限公司 | Automatic trolley traveling method and system in converter tapping |
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Application publication date: 20220315 |