CN115325831A - Non-weighing type carbon powder bin feeding method and system applied to refining furnace - Google Patents
Non-weighing type carbon powder bin feeding method and system applied to refining furnace Download PDFInfo
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- CN115325831A CN115325831A CN202210909924.8A CN202210909924A CN115325831A CN 115325831 A CN115325831 A CN 115325831A CN 202210909924 A CN202210909924 A CN 202210909924A CN 115325831 A CN115325831 A CN 115325831A
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005303 weighing Methods 0.000 title claims abstract description 27
- 238000007670 refining Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 86
- 239000010959 steel Substances 0.000 claims abstract description 86
- 230000007246 mechanism Effects 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims description 26
- 238000007599 discharging Methods 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 11
- 238000013500 data storage Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- -1 temperature Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0025—Charging or loading melting furnaces with material in the solid state
- F27D3/0026—Introducing additives into the melt
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/10—Charging directly from hoppers or shoots
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0075—Regulation of the charge quantity
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Abstract
The invention provides a non-weighing type carbon powder bin charging method and a non-weighing type carbon powder bin charging system applied to a refining furnace, wherein the method comprises the following steps: obtaining the amount of carbon powder required by molten steel; sending the required carbon powder amount to a controller; according to the required carbon powder amount, the controller calculates and sends the rotation angle to the feeding rotating mechanism; the feeding rotating mechanism rotates by a required rotating angle; and the feeding rotating mechanism feeds carbon powder according to the required amount of the carbon powder and falls into the molten steel. According to the invention, the stepping motor is selected as a driving mode of the feeding rotating mechanism, and the stepping motor is combined with the controller, so that carbon powder can be added into the molten steel in the refining furnace with high precision under the condition of no weighing sensor; compared with the mode of adding carbon powder into molten steel in the production process of the traditional refining furnace, the method reduces manual participation, is safe and reliable in the feeding process, extremely high in precision of the weight of the carbon powder added into the molten steel, reasonable in equipment structure, few in fault points and simple and efficient in control method.
Description
Technical Field
The invention belongs to the field of refining furnaces, and particularly relates to a non-weighing type carbon powder bin feeding method and system applied to a refining furnace.
Background
The carbon element has an inseparable relation with the performance of steel, and steel with stable quality can be produced only by adding carbon powder with accurate weight into molten steel at a specific stage during refining production. At present, the steel industry in China is in a high-quality transformation stage, and a refining furnace has higher requirements on the precision of carbon bin equipment.
At present, carbon powder is added into molten steel in the production process of a refining furnace, and the molten steel is mainly manually fed and fed by a vibrating feeder, and the two modes have obvious defects: the danger of manual feeding is extremely high, and the weight error of carbon powder fed into molten steel is extremely large; the vibrating feeder comprises mechanisms such as a carbon silo, a blanking valve, a weighing system, a rapping system and the like, and the weight error of carbon powder put into molten steel is extremely large due to the accumulation of multiple link errors, and the vibrating feeder is complex in structure, large in electric signal and large in fault point.
Disclosure of Invention
The invention aims to provide a non-weighing type carbon powder bin charging method and a non-weighing type carbon powder bin charging system applied to a refining furnace, so as to overcome the technical defects.
In order to solve the technical problem, the invention provides a non-weighing type carbon powder bin feeding method applied to a refining furnace, which comprises the following steps:
obtaining the amount of carbon powder required by molten steel;
sending the required carbon powder amount to a controller;
according to the required carbon powder amount, the controller calculates and sends the rotation angle to the feeding rotating mechanism;
the feeding rotating mechanism rotates by a required rotating angle;
and the feeding rotating mechanism feeds carbon powder according to the required amount of the carbon powder to fall into molten steel.
Before the carbon powder amount required by molten steel is obtained, the method also comprises the following steps:
a position sensor for collecting the position of molten steel is arranged at the feeding position;
a material level meter for collecting the material level of the carbon powder is arranged on the carbon powder bin;
judging whether molten steel is at a feeding level and whether a carbon powder bin is filled according to the molten steel position data and the carbon powder level data;
if yes, the feeding rotating mechanism is started.
Along the flowing direction of powder, the carbon powder bin is sequentially divided into a material storage section, a feeding rotating mechanism and a discharging section, wherein the material level indicator is arranged on the material feeding section, the feeding rotating mechanism at least comprises a plurality of rotating feeding bin grids which are uniformly distributed and have the same volume, the discharging section at least comprises a discharging chute, and a discharging port of the discharging chute is opposite to a feeding material level;
wherein the feeding rotating mechanism is driven by a stepping motor.
According to required powdered carbon volume, the controller calculates and sends rotation angle to feed rotary mechanism, and feed rotary mechanism rotates required rotation angle, specifically includes:
pre-storing a plurality of groups of carbon powder amount data and a plurality of groups of preset rotating grids of the rotating feeding bin grids in a controller;
each set of carbon powder data corresponds to the weight of carbon powder in each set of rotary feeding bin grids with preset rotary grids;
after receiving carbon powder amount data required by molten steel, the controller outputs pulse signals to the motion control module, the motion control module sends corresponding pulse signals to the stepping motor, the stepping motor rotates corresponding step angles, and the stepping motor drives the rotary feeding bin grids to rotate corresponding preset rotary grid numbers according to the step angles.
The feeding rotating mechanism feeds carbon powder according to the required carbon powder amount to fall into molten steel, and specifically comprises the following steps:
the feeding rotating mechanism stops after rotating the rotating feeding bin grids with the corresponding grids;
the carbon powder in the rotary feeding bin grids with the corresponding grid number falls into a discharging chute;
the carbon powder in the blanking chute falls into the molten steel completely by the gravity of the blanking chute.
The invention also provides a non-weighing type carbon powder bin charging system applied to the refining furnace, which comprises:
the controller is used for acquiring the carbon powder amount required by molten steel, calculating and sending the rotation angle to the feeding rotating mechanism;
the motion control module is used for controlling the feeding rotating mechanism to rotate to a required rotating angle;
and the feeding rotating mechanism is used for quantitatively feeding carbon powder to the molten steel.
The controller at least comprises a data interface module, a data operation module, a data acquisition module, a data judgment module and a data storage module, wherein:
the data interface module is used for receiving a charging command and the carbon powder amount required by molten steel sent by the superior equipment and feeding back an operation state signal to the superior equipment;
the data operation module is used for calculating a stepping angle required to rotate by the stepping motor;
the data acquisition module is used for acquiring the position of molten steel and the position of carbon powder;
the data judgment module is used for judging whether molten steel is at a feeding position and whether the carbon powder bin is filled with materials;
and the data storage module is used for storing the carbon powder amount data, the preset rotating grid number of the rotating feeding bin grids and the step angle of the stepping motor.
The invention has the following beneficial effects:
by combining the stepping motor with the controller, carbon powder can be added into the molten steel in the refining furnace with high precision under the condition of no weighing sensor; compared with the mode of adding carbon powder into molten steel in the production process of the traditional refining furnace, the method reduces manual participation, is safe and reliable in the feeding process, extremely high in precision of the weight of the carbon powder added into the molten steel, reasonable in equipment structure, few in fault points and simple and efficient in control method.
In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a flow chart of a charging method of the first embodiment;
FIG. 2 is a flow chart of a charging method of a second embodiment;
FIG. 3 is a schematic view of a feed rotating mechanism (the arrow in the figure indicates the rotating direction);
FIG. 4 is a schematic of a non-weighted toner hopper charging system applied to a finer.
Description of reference numerals:
1. a stepping motor; 2. rotating the feeding bin grids; 3. a silo cover; 4. a baffle plate; 5. a level gauge; 6. a controller; 7. a data interface module; 8. a data operation module; 9. a motion control module; 10. blanking chute; 11. a position sensor; 12. a data acquisition module; 13. a data judgment module; 14. and a data storage module.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the present invention, the upper, lower, left and right in the drawings are regarded as the upper, lower, left and right of the roll-over preventing device for radial coil-unwinding of the large-diameter-to-width ratio coil described in the present specification.
Example embodiments of the present invention will now be described with reference to the accompanying drawings, however, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, which are provided for a complete and complete disclosure of the invention and to fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings are not intended to limit the present invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The first embodiment:
the embodiment relates to a non-weighing type carbon powder bin charging method applied to a refining furnace, which comprises the following steps as shown in figure 1:
101. obtaining the amount of carbon powder required by molten steel;
102. sending the required carbon powder amount to a controller;
103. according to the required carbon powder amount, the controller calculates and sends the rotation angle to the feeding rotating mechanism;
104. the feeding rotating mechanism rotates by a required rotating angle;
105. and the feeding rotating mechanism feeds carbon powder according to the required amount of the carbon powder and falls into the molten steel.
Specifically, the weight of the carbon powder added to the molten steel is related to the steel type, temperature, components and the like in the steel ladle, in this embodiment, the amount of carbon powder needed by the molten steel refers to a conventional manner, that is, a manner of adding the amount of carbon powder to the molten steel by using a manual feeding or a vibrating feeder, and since this manner is the prior art, this embodiment is only to use this means without protecting it, and is not described herein again.
After receiving the amount of carbon powder required by molten steel, the controller 6 calculates a rotation angle corresponding to the amount of carbon powder, and sends the rotation angle to the feeding rotating mechanism, and the feeding rotating mechanism rotates according to the received rotation angle to add the specified amount of carbon powder into the molten steel.
The above-mentioned predetermined amount is the amount of carbon powder required for molten steel.
For example, a higher-level device (such as a PLC or an industrial L2 control system) sends a command of the required amount of carbon powder P, the controller 6 receives the command and calculates that the rotation angle corresponding to the amount of carbon powder P is N, and at this time, the controller 6 commands the feeding rotating mechanism to rotate N degrees, so that the feeding rotating mechanism accurately feeds the amount of carbon powder P into the molten steel.
Therefore, when the carbon powder is added into the molten steel, the whole process does not need manual participation, and the carbon powder is safely and accurately added into the molten steel.
Second embodiment:
the embodiment relates to a non-weighing type carbon powder bin charging method applied to a refining furnace, and with reference to fig. 2, the method comprises the following steps:
100. a position sensor 11 for collecting the position of molten steel is installed at the feeding position, as shown in fig. 3;
a level indicator 5 for acquiring the level of the carbon powder is arranged in the carbon powder bin, as shown in figure 3;
judging whether molten steel is at a feeding level and whether a carbon powder bin is filled according to the molten steel position data and the carbon powder level data;
if yes, the feeding rotating mechanism is started.
101. Obtaining the amount of carbon powder required by molten steel;
102. sending the required amount of carbon powder to the controller 6;
103. according to the required carbon powder amount, the controller 6 calculates and sends a rotation angle to the feeding rotating mechanism;
104. the feeding rotating mechanism rotates by a required rotating angle;
105. and the feeding rotating mechanism feeds carbon powder according to the required amount of the carbon powder and falls into the molten steel.
Before executing step 101, it is determined whether a start condition is satisfied, and charging can be started only when the determination condition is satisfied.
The starting conditions are as follows:
molten steel is in the feeding position, and the carbon powder bin is filled with materials.
Whether the molten steel is at the feeding level or not can be determined by installing a position sensor 11 at the feeding level, acquiring the molten steel position by using the position sensor 11, presetting the molten steel position corresponding to the feeding level, and transmitting data to the controller 6 by using the position sensor 11 when the molten steel position reaches the feeding level.
Meanwhile, if the carbon powder bin has materials, the material level indicator 5 can be installed on the carbon powder bin, the material level indicator 5 is used for collecting the material level of the carbon powder, similarly, the material level of the carbon powder can be preset, and when the material level of the carbon powder reaches a preset value, the material level indicator 5 transmits data to the controller 6.
And the controller 6 can control the feeding rotating mechanism to run/start in a linkage manner only after receiving the data that the molten steel is at the feeding position and the carbon powder bin is charged, or else, the controller stops.
Referring to fig. 3, along the powder flowing direction, that is, from top to bottom as shown in fig. 3, the carbon powder bin is sequentially divided into a storage section, a feeding rotary mechanism and a discharging section, wherein the material level meter 5 is installed at the feeding section, the feeding rotary mechanism at least comprises a plurality of rotary feeding bin grids 2 which are uniformly distributed and have the same volume, the discharging section at least comprises a discharging chute 10, and a discharging port of the discharging chute 10 is over against the feeding material level.
The carbon powder bin is integrally of a hollow tube structure with two open ends, the other parts of the two ends of the carbon powder bin are sealed after a feeding port and a discharging port are reserved, the structure of the hollow tube is not limited, the hollow tube can be bent as shown in figure 3 and can also be in other shapes, and the carbon powder bin can be improved according to actual needs.
The storage section is the tubulose, and the mouth of pipe is the charge door, and charge level indicator 5 is installed at this charge door, and its effect is the carbon powder material level data of obtaining, then installs baffle 4 intraductally, and baffle 4 is intraductal slope from the mouth of pipe, plays the carbon powder whereabouts direction and scrapes the effect of the carbon powder of rotary feed bin check 2 top.
The feeding rotating mechanism has more forms, can be purchased in the market, can also improve the existing structure, and is not limited.
In this embodiment, the structure shown in fig. 3 is selected, and whatever feeding rotating mechanism is selected, the bin cover 3 must be closed and driven by the stepping motor 1, and the feeding rotating mechanism rotates synchronously along with the rotation of the stepping motor 1, and the rotating feeding bin grids 2 with the same volume are uniformly distributed in the feeding rotating mechanism.
The rotatory feed bin check 2 that the volume is the same combines the direction realization of feed bin cover 3 and baffle 4 to strickle off the carbon material, can guarantee that the carbon powder weight (volume) is the same in the feed bin check of unloading elephant trunk 10 direction of rotation.
According to the illustration in fig. 3, the apertures of the lower discharge port of the storage section and the connecting portions of the rotary feeding bin grids 2 are approximately the same to ensure that the carbon powder in the storage section can be completely transferred into the rotary feeding bin grids 2, in addition, fig. 3 shows eight rotary feeding bin grids 2, the eight rotary feeding bin grids 2 are uniformly spaced along the circumferential direction, it can be ensured that four rotary feeding bin grids 2 above the horizontal line are filled with carbon powder, and the carbon powder of the other four rotary feeding bin grids 2 is completely poured into the discharging chute 10, i.e. is empty, and the radial cross section of each rotary feeding bin grid 2 is fan-like.
It can be seen that the partition walls of the rotary feed bin grid 2 shown in fig. 3 are not perpendicular to the central cylinder, but have an angle with the axial centre line of the central cylinder, and all partition walls are inclined in the same direction, i.e. in the opposite direction to the direction of rotation, which is indicated by the arrow in fig. 3, in order to facilitate the discharge of the storage section and to facilitate the release of carbon powder to the discharge chute 10.
The above forms of the rotary feeder bin 2 are merely illustrative and not limiting.
The blanking chute 10 is inclined, see figure 3, in order to allow the carbon powder material to slide into the molten steel by gravity.
The feeding rotating mechanism is driven by the stepping motor 1, the rotating angle of the stepping motor 1 is in direct proportion to the number of pulses, and the response of the motor is determined only by digital input pulses, so that open-loop control can be adopted, the system structure is simpler, and the characteristic that the stepping motor does not accumulate errors is utilized, so that the carbon silo system can be ensured to have extremely high precision in adding carbon powder into molten steel in the refining furnace.
The reason why the stepping motor 1 is selected is:
the stepping motor has the advantages of large torque, quick response, high precision and no accumulated error.
It should be noted that, in the present embodiment, the stepping motor 1 is selected as the driving component, which is not the only choice, and other types of motors may be selected, and components, signals, etc. with corresponding functions are added or modified for other types of motors as long as the functions of the stepping motor 1 can be realized.
The volume of the rotary feeding bin 2 is required to be the same, so that the carbon powder is quantitatively fed, and specifically:
a plurality of groups of carbon powder amount data and a plurality of groups of preset rotating grid numbers of the rotating feeding bin grids 2 are stored in the controller 6 in advance;
each set of carbon powder data corresponds to the weight of the carbon powder in the rotary feeding bin grid 2 with each set of preset rotary grid number;
after receiving the carbon powder amount data required by the molten steel, the controller outputs a pulse signal to the motion control module 9, the motion control module 9 sends a corresponding pulse number to the stepping motor 1, the stepping motor 1 rotates by a corresponding step angle, the stepping motor 1 drives the rotary feeding bin grids 2 to rotate by a corresponding preset number of rotary grids according to the step angle, or the motion control module 9 controls the stepping motor 1 to drag the feeding rotating mechanism to rotate the rotary feeding bin grids 2 by a corresponding number of rotary grids according to the step angle.
That is, the preset number of rotating bins 2 corresponds to the step angle of the stepper motor 1, the step angle of the stepper motor 1 corresponds to the pulse signal of the motion control module 9, and the pulse signal of the motion control module 9 depends on the controller 6, and in particular on the amount of toner required.
The motion control module 9 described above may be a stepper driver.
That is, the toner amount data, the preset rotation grid number, and the step angle are corresponding relations, and the following list explains that:
in the above table, the amount Xn of the carbon powder, the preset number Yn of the rotary feeding bin grids 2, and the step angle Zn at which the stepping motor 1 needs to rotate correspond to each other, for example, the command issued by the higher-level device is obtained by throwing the amount X1 of the carbon powder into the molten steel, then the controller 6 calculates (retrieves) the preset number Yn of the rotary grids and the step angle Zn corresponding to the amount X1 of the carbon powder, and sends the preset number Yn of the rotary grids and the step angle Zn to the motion control module 9, the motion control module 9 drives the step angle Zn of the stepping motor 1 to rotate, and the feeding rotating mechanism is dragged to rotate the Yn rotary feeding bin grids 2, that is, the carbon powder in the Yn rotary feeding bin grids 2 is added into the molten steel.
The feeding rotating mechanism feeds carbon powder according to the required carbon powder amount to fall into molten steel, and specifically comprises the following steps:
the feeding rotating mechanism stops after rotating the rotary feeding bin grids 2 with the corresponding grids;
the carbon powder in the rotary feeding bin grids 2 with the corresponding grid number falls into a discharging chute 10;
the carbon powder in the blanking chute 10 falls into the molten steel completely by means of the gravity of the carbon powder.
The third embodiment:
this embodiment provides a non-weighing type carbon powder storehouse charging system for refining furnace, refers to fig. 4, includes:
the controller 6 is used for acquiring the carbon powder amount required by the molten steel, calculating and sending the rotating angle to the feeding rotating mechanism;
the motion control module 9 is used for controlling the feeding rotating mechanism to rotate to a required rotating angle;
and the feeding rotating mechanism is used for quantitatively feeding carbon powder to the molten steel.
Specifically, the controller 6 at least includes a data interface module 7, a data operation module 8, a data acquisition module 12, a data judgment module 13, and a data storage module 14, wherein:
the data interface module 7 is used for receiving a charging command and the carbon powder amount required by molten steel sent by the superior equipment and feeding back an operation state signal to the superior equipment;
a data operation module 8, configured to calculate a step angle (or a pulse number) that the stepping motor 1 needs to rotate;
the data acquisition module 12 is used for acquiring the position of molten steel and the material level of carbon powder, and consists of a position sensor 11 and a material level indicator 5;
the data judgment module 13 is used for judging whether molten steel is at a feeding position and whether the carbon powder bin is filled with materials;
and the data storage module 14 is used for storing the carbon powder amount data, the preset rotating grid number of the rotary feeding bin grids 2 and the step angle of the stepping motor 1.
The following working principle of the non-weighing high-precision charging system is as follows:
the data acquisition module 12 transmits the acquired molten steel feeding bit data and the acquired carbon powder bin feeding bit data to the data judgment module 13;
when the data judgment module 13 judges that the molten steel is at the feeding position and the carbon powder bin is filled, a starting signal is transmitted to the data interface module 7;
the data interface module 7 obtains a feeding start command and feeding weight data issued by the upper level;
the data operation module 8 calculates the step angle of the stepping motor 1 needing to rotate, commands are issued to the motion control module 9, the motion control module 9 outputs corresponding pulse signals to the stepping motor 1, the stepping motor 1 drags the feeding rotating mechanism to rotate the required angle and then stops, carbon powder falls into molten steel, the non-weighing high-precision carbon storage bin system completes one-time feeding action, and the controller gives (feeds back) feeding state signals to the upper level through the data interface module 7.
Preparation of the charging system before operation:
the controller 6, the motion control module 9 and the stepper motor 1 are initialized.
The non-weighing type carbon powder bin charging system has the working process as follows:
the controller 6 collects material level signals and steel liquid position signals as working starting conditions, when the judging conditions are met, the non-weighing type high-precision carbon storage bin system starts to work, the controller 6 obtains a feeding starting command issued by the previous level and weight data needing to be fed from the data interface module 7, a data operation module 8 of the controller 6 calculates a stepping angle at which the stepping motor 1 needs to rotate, the command is issued to the motion control module 9, the motion control module 9 outputs corresponding pulse signals to the stepping motor 1, the stepping motor 1 drives the feeding rotating mechanism in the storage bin cover 3 to rotate by the required angle, the corresponding rotary feeding bin grid 2 rotates towards the feeding direction, carbon powder falls into molten steel through the feeding chute 10 by means of gravity after reaching a certain angle, the non-weighing type high-precision carbon storage bin system finishes one-time feeding action, and the controller gives a feeding state signal to the previous level through the data interface.
The position sensor 11 is mainly used to detect the position of molten steel, and specifically, a proximity switch, an infrared or laser correlation sensor, a mechanical limit switch, or the like may be used.
The non-weighing type carbon powder bin feeding system provided by the invention can accurately feed carbon powder into molten steel in a refining furnace under the condition of no weighing sensor, reduces the risk factors of manual participation, reduces the production cost and provides powerful support for full-automatic steel making.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (7)
1. The non-weighing type carbon powder bin feeding method applied to the refining furnace is characterized by comprising the following steps of:
obtaining the amount of carbon powder required by molten steel;
sending the required carbon powder amount to a controller;
according to the required carbon powder amount, the controller calculates and sends the rotation angle to the feeding rotating mechanism;
the feeding rotating mechanism rotates by a required rotating angle;
and the feeding rotating mechanism feeds carbon powder according to the required amount of the carbon powder and falls into the molten steel.
2. The non-weighing toner hopper charging method applied to a finer as recited in claim 1, further comprising the following steps before performing the amount of toner required for obtaining molten steel:
a position sensor (11) for collecting the position of molten steel is arranged at the feeding position;
a material level meter (5) for collecting the material level of the carbon powder is arranged on the carbon powder bin;
judging whether molten steel is at a feeding level and whether a carbon powder bin is filled according to the molten steel position data and the carbon powder level data;
and if so, starting the feeding rotating mechanism.
3. The non-weighing type toner hopper feeding method applied to a refining furnace according to claim 2, characterized in that along the powder flowing direction, the toner hopper is sequentially divided into a storage section, a feeding rotating mechanism and a discharging section, wherein the level meter (5) is arranged at the feeding section, the feeding rotating mechanism at least comprises a plurality of rotating feeding hopper grids (2) which are uniformly distributed and have the same volume, the discharging section at least comprises a discharging chute (10), and the discharging port of the discharging chute (10) is opposite to the feeding level;
wherein the feeding rotating mechanism is driven by a stepping motor (1).
4. The non-weighted toner hopper charging method applied to a finer according to claim 3, wherein the controller calculates and sends the rotation angle to a feeding rotating mechanism according to the required amount of toner, and the feeding rotating mechanism rotates by the required rotation angle, specifically comprising:
a plurality of groups of carbon powder amount data and a plurality of groups of preset rotating grid numbers of the rotating feeding bin grids (2) are stored in the controller in advance;
each set of carbon powder data corresponds to the weight of carbon powder in each set of rotary feeding bin grids (2) with preset rotary grids;
after receiving carbon powder amount data required by molten steel, the controller outputs pulse signals to the motion control module (9), the motion control module (9) sends corresponding pulse signals to the stepping motor (1), the stepping motor (1) rotates corresponding step angles, and the stepping motor (1) drives the rotary feeding bin grids (2) to rotate corresponding preset rotary grid numbers according to the step angles.
5. The non-weighing type carbon powder bin feeding method applied to a refining furnace according to claim 4, wherein the feeding rotating mechanism feeds carbon powder into molten steel according to the required amount of the carbon powder, and the method specifically comprises the following steps:
the feeding rotating mechanism stops after rotating the rotary feeding bin grids (2) with the corresponding number;
the carbon powder in the rotary feeding bin grids (2) with the corresponding grid number falls into a discharging chute (10);
carbon powder in the blanking chute (10) falls into the molten steel completely by means of self gravity.
6. Be applied to non-weighing type carbon powder storehouse charging system of refining furnace, its characterized in that includes:
the controller is used for acquiring the carbon powder amount required by the molten steel, calculating and sending the rotating angle to the feeding rotating mechanism;
the motion control module (9) is used for controlling the feeding rotating mechanism to rotate to a required rotating angle;
and the feeding rotating mechanism is used for quantitatively adding carbon powder to the molten steel.
7. A non-weighted toner hopper charging system for use in a finer according to claim 6 wherein the controller comprises at least a data interface module (7), a data calculation module (8), a data acquisition module (12), a data judgment module (13), a data storage module (14), wherein:
the data interface module (7) is used for receiving a charging command and the carbon powder amount required by molten steel sent by superior equipment and feeding back an operation state signal to the superior equipment;
the data operation module (8) is used for calculating a step angle required to be rotated by the stepping motor (1);
the data acquisition module (12) is used for acquiring the position of molten steel and the position of carbon powder;
the data judgment module (13) is used for judging whether molten steel is at a feeding position and whether the carbon powder bin is filled with materials;
and the data storage module (14) is used for storing the carbon powder amount data, the preset rotating grid number of the rotating feeding bin grids (2) and the step angle of the stepping motor (1).
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| CN202210909924.8A CN115325831A (en) | 2022-07-29 | 2022-07-29 | Non-weighing type carbon powder bin feeding method and system applied to refining furnace |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076250A (en) * | 2008-05-29 | 2011-05-25 | 雀巢产品技术援助有限公司 | Dosing device for a beverage dispensing system |
| CN203069205U (en) * | 2012-11-16 | 2013-07-17 | 江苏大学 | Transparent screw charging test apparatus |
| CN104789740A (en) * | 2015-04-24 | 2015-07-22 | 中国重型机械研究院股份公司 | Vacuum feeding system of RH refining device and control method of vacuum feeding system |
| US20190048430A1 (en) * | 2017-08-10 | 2019-02-14 | University Of Science And Technology Beijing | Clean and rapid smelting method in an electric arc furnace with full scrap steel |
| CN213475450U (en) * | 2020-10-09 | 2021-06-18 | 联合环境水处理(大丰)有限公司 | Chemical adding device for industrial wastewater treatment |
-
2022
- 2022-07-29 CN CN202210909924.8A patent/CN115325831A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076250A (en) * | 2008-05-29 | 2011-05-25 | 雀巢产品技术援助有限公司 | Dosing device for a beverage dispensing system |
| CN203069205U (en) * | 2012-11-16 | 2013-07-17 | 江苏大学 | Transparent screw charging test apparatus |
| CN104789740A (en) * | 2015-04-24 | 2015-07-22 | 中国重型机械研究院股份公司 | Vacuum feeding system of RH refining device and control method of vacuum feeding system |
| US20190048430A1 (en) * | 2017-08-10 | 2019-02-14 | University Of Science And Technology Beijing | Clean and rapid smelting method in an electric arc furnace with full scrap steel |
| CN213475450U (en) * | 2020-10-09 | 2021-06-18 | 联合环境水处理(大丰)有限公司 | Chemical adding device for industrial wastewater treatment |
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