CN113218190B - Oxygen supply device for stabilizing oxygen supply of oxygen-enriched side-blown converter and use method thereof - Google Patents
Oxygen supply device for stabilizing oxygen supply of oxygen-enriched side-blown converter and use method thereof Download PDFInfo
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- CN113218190B CN113218190B CN202110354472.7A CN202110354472A CN113218190B CN 113218190 B CN113218190 B CN 113218190B CN 202110354472 A CN202110354472 A CN 202110354472A CN 113218190 B CN113218190 B CN 113218190B
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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
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/02—Supplying steam, vapour, gases, or liquids
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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
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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
- F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
- F27D2019/004—Fuel quantity
- F27D2019/0043—Amount of air or O2 to the burner
Abstract
The invention discloses a stable oxygen supply device of an oxygen-enriched side-blown converter and a using method thereof, and relates to the technical field of oxygen supply of the side-blown converter. The invention relates to a stable oxygen supply device of an oxygen-enriched side-blown converter, which comprises an adjusting mechanism, a detection mechanism and a connecting pipe, wherein one end of the detection mechanism is communicated and connected with one end of the adjusting mechanism through a first conveying pipe, the other end of the detection mechanism is communicated and connected with one end of the connecting pipe through a second conveying pipe, the other end of the adjusting mechanism connected with the first conveying pipe is communicated and provided with a main air inlet pipe, the main air inlet pipe is also communicated and connected with one end of another adjusting mechanism through a third conveying pipe, and the other end of the adjusting mechanism connected with the third conveying pipe is communicated and provided with an auxiliary air inlet pipe. According to the oxygen supply device, the main air inlet pipe, the auxiliary air inlet pipe, the adjusting mechanism, the detecting mechanism, the connecting pipe, the semicircular arc-shaped plate and the arc-shaped blocking piece are arranged and matched with each other, so that oxygen supply of the device is more stable, dust accumulated in the device is convenient to clean, and the oxygen supply device is high in practicability.
Description
Technical Field
The invention belongs to the technical field of oxygen supply of a side-blown converter, and particularly relates to a stable oxygen supply device of an oxygen-enriched side-blown converter and a use method thereof, which are mainly used for internal oxygen supply in the production of the side-blown converter.
Background
In the existing production process, during the specific combustion process of minerals, oxygen can be supplied from the bottom of the furnace, minerals at the bottom can be fully combusted under the condition of fully contacting with oxygen, but minerals above the furnace cannot be fully combusted, and the side-blown furnace can just solve the problems, during the use process of the side-blown furnace, oxygen can be blown in from the side surface of the side-blown furnace through an oxygen supply device, so that the full combustion of minerals in the furnace is realized, but the oxygen supply device for the existing side-blown furnace still has the following defects during the use process:
1. the existing oxygen supply device for the side-blown furnace has the defects of unstable oxygen supply, and during the use process of the side-blown furnace, the mineral substances can not be fully combusted or waste caused by excessive oxygen supply is caused due to unstable oxygen supply of an air source;
2. in the use process of the oxygen supply device for the side-blown converter, dust accumulation and sintering can occur in the pipeline connected with the side-blown converter, but the arrangement of the pipeline in an integrated manner causes inconvenience in cleaning accumulated dust in the pipeline by workers;
accordingly, there is a need for improvements in the prior art that address the deficiencies in the prior art.
Disclosure of Invention
The invention aims to provide a stable oxygen supply device of an oxygen-enriched side-blown furnace, which can stably supply oxygen and is convenient for cleaning dust in the oxygen supply device, and a use method thereof, and solves the problems that the oxygen supply device for the existing side-blown furnace is unstable and insufficient in oxygen supply and the dust accumulated in the oxygen supply device for the existing side-blown furnace is inconvenient to treat.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a stable oxygen supply device of an oxygen-enriched side-blown converter, which comprises an adjusting mechanism, a detection mechanism and a connecting pipe, wherein one end of the detection mechanism is communicated and connected with one end of the adjusting mechanism through a first conveying pipe, the other end of the detection mechanism is communicated and connected with one end of the connecting pipe through a second conveying pipe, the other end of the adjusting mechanism connected with the first conveying pipe is communicated and provided with a main air inlet pipe, the main air inlet pipe is also communicated and connected with one end of another adjusting mechanism through a third conveying pipe, and the other end of the adjusting mechanism connected with the third conveying pipe is communicated and provided with an auxiliary air inlet pipe;
the adjusting mechanism comprises an outer cylinder, an air bag, a three-way connecting piece and an air pump, wherein the air bag is arranged on the inner side of the outer cylinder along the axis direction of the outer cylinder, and two ends of the air bag are fixedly connected to the inner wall of the outer cylinder through connecting frames;
the middle part of the lower end of the air bag is also fixedly connected with a fourth conveying pipe, and the other end of the fourth conveying pipe penetrates through the outer cylinder and extends to the outer side of the outer cylinder to be fixedly connected with one ventilation end of the three-way connecting piece;
the other two air vent ends of the three-way connecting piece are fixedly connected with fifth conveying pipes, the fifth conveying pipes are fixedly connected with first electromagnetic valves, and the other end of one of the fifth conveying pipes is fixedly connected to the air outlet end of the air suction pump;
the detection mechanism comprises an outer box, a swinging ball, a rotating disc and a fixed column, wherein the swinging ball is arranged at the position of the lower end in the outer box, the swinging ball is fixedly connected to the outer side wall of the lower end of the rotating disc through a connecting rod, the rotating disc is sleeved on the fixed column in a sliding mode, and two ends of the fixed column are fixedly connected to the inner wall of the outer box through fixed discs;
arc-shaped grooves are symmetrically arranged on two side faces of one end, close to the first conveying pipe, of the rotating disc, and one ends of the arc-shaped grooves are arranged right below a vertical central plane of the rotating disc; the depth of the arc-shaped groove is gradually increased from one end right below the rotating disc to the other end;
a distance measuring sensor is arranged under one side surface of the fixed disc close to the rotating disc, and the distance measuring sensor and the arc-shaped groove are arranged in a concentric circle;
the second conveying pipe is fixedly connected with one end of the connecting pipe through a connecting ring, a flange plate is fixedly connected to the other end of the connecting pipe, and the flange plate at one end of the connecting pipe is fixedly connected to an air inlet of the side-blown converter through a fixing bolt;
an inner pipe is further arranged inside the connecting pipe, the inner pipe mainly comprises two semicircular arc plates which are symmetrically arranged, rectangular clamping grooves are formed in two end faces of one semicircular arc plate along the axis direction, and rectangular clamping strips are arranged on two end faces of the other semicircular arc plate along the axis direction and are used for being in clearance fit with the rectangular clamping grooves;
a plurality of groups of arc-shaped retaining pieces are uniformly distributed on the inner wall of the inner pipe along the axis direction, each group of arc-shaped retaining pieces is composed of a plurality of arc-shaped retaining pieces uniformly distributed along the circumferential direction of the inner pipe, and the free ends of the arc-shaped retaining pieces are arranged along one end far away from the second conveying pipe;
the middle part of the outer side wall of the semicircular arc plate is also provided with a T-shaped limiting plate along the axis direction, the T-shaped limiting plate is clamped in a T-shaped limiting groove on the inner wall of the connecting pipe in a sliding mode, and two ends of the T-shaped limiting groove are arranged in an opening mode.
Furthermore, both end surfaces of the outer barrel are provided with first connecting heads which are communicated with a circulation cavity in the outer barrel.
Furthermore, a first connecting head of the adjusting mechanism matched with the main air inlet pipe is fixedly sleeved with one end of the main air inlet pipe, the other first connecting head of the adjusting mechanism is fixedly sleeved with one end of the first conveying pipe, and a second electromagnetic valve is fixedly arranged on the main air inlet pipe.
Furthermore, a first connecting head of the adjusting mechanism matched with the auxiliary air inlet pipe is fixedly sleeved with one end of the auxiliary air inlet pipe, meanwhile, the other first connecting head is fixedly sleeved with one end of the third conveying pipe, and a third electromagnetic valve is fixedly arranged on the auxiliary air inlet pipe.
Furthermore, the two end faces of the outer box are respectively provided with a second connector, the second connectors are communicated with the circulation cavity inside the outer box, one of the second connectors is fixedly connected with one end of the first conveying pipe, and the other second connector is fixedly connected with one end of the second conveying pipe.
Furthermore, a connecting straight line between the two second connectors is perpendicular to the axis of the fixing column.
Furthermore, the positioning sleeve is sleeved on the fixing column on the two sides of the rotating disc in a sliding mode, the positioning sleeve is spirally matched with a locking bolt, and one end of the locking bolt is in contact with the outer side wall of the fixing column.
Furthermore, the two sides of the connecting ring are symmetrically provided with first external thread sleeves with equal inner diameters, one of the first external thread sleeves is in threaded fit in the second conveying pipe, and the other first external thread sleeve is in threaded fit on the inner thread of the inner wall of one end of the connecting pipe.
Furthermore, a second external thread sleeve with the same inner diameter is arranged on one side face of the flange plate, the second external thread sleeve is in spiral fit with the internal thread on the inner wall of one end of the connecting pipe, and a plurality of mounting holes are uniformly distributed in the flange plate on the outer side of the second external thread sleeve along the circumferential direction.
The invention also provides a use method of the oxygen supply device for the oxygen-enriched side-blown converter, which comprises the following steps:
s1: one end of the main air inlet pipe is connected to a first air source, and one end of the auxiliary air inlet pipe is connected to a second air source;
s2: the PLC controller controls the second electromagnetic valve to be opened, the third electromagnetic valve to be closed, oxygen enters the detection mechanism through the main air inlet pipe and the first conveying pipe, and the pendulum ball inclines along the air flow direction under the condition of air flow;
s3: the depth of the arc-shaped groove can be monitored when the pendulum ball rotates through the distance measuring sensor;
s4: setting a depth numerical range to be detected by the distance measuring sensor through a PLC (programmable logic controller) according to the oxygen flux;
s5: when the numerical value detected by the distance measuring sensor is larger than a preset value, the PLC controls an air suction pump on an adjusting mechanism connected with the first conveying pipe to work, and the air bag expands under the action of air blowing to reduce the air flow; when the numerical value detected by the distance measuring sensor is smaller than the preset value, the PLC controller can control the third electromagnetic valve to be opened and control an air suction pump on an adjusting mechanism connected with the third conveying pipe to work according to specific detection data;
s6: after the work is finished, the air pump stops working, the first electromagnetic valve on the fifth conveying pipe connected with the air pump is closed, meanwhile, the first electromagnetic valve on the other fifth conveying pipe is opened, and under the action of atmospheric pressure, gas in the air bag is discharged.
The invention has the following beneficial effects:
1. the invention can conveniently know the rotation angle of the pendulum ball by the arrangement of the detection mechanism when in use, and further realize the detection of the supply amount of oxygen by the distance measurement sensor, when the detected value is larger than a preset value, the PLC can indicate that the supply amount of oxygen is excessive, the PLC can control the air pump in the adjusting mechanism connected with the main air inlet pipe to work, the air bag in the adjusting mechanism expands to block the outer cylinder, thereby reducing the flow of oxygen, when the value detected by the distance measurement sensor is smaller than the preset value, the PLC indicates that the supply amount of oxygen is insufficient, the PLC can control the opening of the third electromagnetic valve, the auxiliary air source can supplement air, the adjusting mechanism connected with the auxiliary air inlet pipe can also control the auxiliary air inflow by the PLC, and the arrangement can realize the stability of the supply of oxygen of the side blown furnace, ensuring the complete combustion of the minerals.
2. According to the invention, through the arrangement of the arc-shaped retaining sheet, in the use process of the oxygen supply device, the arc-shaped retaining sheet can intercept dust, when the inner pipe in the connecting pipe needs to be cleaned, the connecting pipe is disassembled only by rotating the connecting ring and the flange plate, because the T-shaped limiting plate on the semicircular arc plate is slidably clamped in the T-shaped limiting groove, a worker can conveniently take out the two semicircular arc plate connecting bodies from the connecting pipe, because the rectangular clamping groove and the rectangular clamping strip are arranged in a clearance fit manner, the two taken out semicircular arc plates can be conveniently disassembled, the worker can conveniently clean the inner pipe conveniently, and the arrangement can realize the quick cleaning of accumulated dust in the inner pipe.
Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a view of the second feed pipe and the connecting pipe to be assembled according to the present invention;
FIG. 4 is a schematic view of the overall structure of the detecting mechanism of the present invention;
FIG. 5 is a schematic view of the internal structure of the detecting mechanism of the present invention;
FIG. 6 is a view of the engagement between the rotating plate and the stationary post of the present invention;
FIG. 7 is a schematic view of the overall structure of the adjusting mechanism of the present invention;
FIG. 8 is a schematic view of the inner structure of the outer tub in the present invention;
FIG. 9 is a ready-to-assemble view of the inner barrel of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a main air inlet pipe; 2. an adjustment mechanism; 3. a first delivery pipe; 4. a detection mechanism; 5. a second delivery pipe; 6. a connecting pipe; 7. an auxiliary air inlet pipe; 8. a third delivery pipe; 101. a second solenoid valve; 201. an outer cylinder; 202. an air bag; 203. a tee joint connector; 204. an air pump; 401. an outer box; 402. placing a ball; 403. rotating the disc; 404. fixing a column; 405. a positioning sleeve; 601. a connecting ring; 602. a flange plate; 603. an internal thread; 604. a T-shaped limiting groove; 605. a semi-circular arc plate; 701. a third electromagnetic valve; 2011. a first connector; 2021. a fourth delivery pipe; 2022. a connecting frame; 2031. a fifth delivery pipe; 2032. a first solenoid valve; 4011. a second connector; 4021. a connecting rod; 4031. a circular arc-shaped groove; 4041. fixing the disc; 4042. a ranging sensor; 4051. locking the bolt; 6011. a first external thread bush; 6021. a second external thread bush; 6022. mounting holes; 6051. a T-shaped limiting plate; 6052. an arc-shaped baffle plate; 6053. a rectangular clamping groove; 6054. rectangular card strip.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-2, the invention is a stable oxygen supply device for an oxygen-enriched side-blown converter, comprising an adjusting mechanism 2, a detecting mechanism 4 and a connecting pipe 6, wherein one end of the detecting mechanism 4 is connected with one end of the adjusting mechanism 2 through a first conveying pipe 3, while the other end of the detecting mechanism 4 is connected with one end of the connecting pipe 6 through a second conveying pipe 5, the other end of the adjusting mechanism 2 connected with the first conveying pipe 3 is communicated with a main air inlet pipe 1, the main air inlet pipe 1 is also connected with one end of another adjusting mechanism 2 through a third conveying pipe 8, the other end of the adjusting mechanism 2 connected with the third conveying pipe 8 is communicated with an auxiliary air inlet pipe 7, the basic structure of the device is formed by the components as shown in the attached figures, wherein one end of the main air inlet pipe 1 is connected with a main air source, one end of the auxiliary air inlet pipe 7 is connected with an auxiliary air source, one end of the connecting pipe 6 is connected with the side-blown converter, and oxygen can be continuously supplied to the side-blown converter through the arrangement;
referring to fig. 1 and 7-8, the adjusting mechanism 2 includes an outer cylinder 201, an air bag 202, a three-way connecting member 203 and a suction pump 204, the air bag 202 is disposed inside the outer cylinder 201 along the axial direction of the outer cylinder 201, two ends of the air bag 202 are both fixedly connected to the inner wall of the outer cylinder 201 through a connecting frame 2022, and the connecting frame 2022 can support and fix the air bag 202 inside the outer cylinder 201;
two end surfaces of the outer cylinder 201 are respectively provided with a first connecting head 2011, and the first connecting heads 2011 are communicated with a circulation cavity in the outer cylinder 201;
the middle part of the lower end of the air bag 202 is also fixedly connected with a fourth conveying pipe 2021, and the other end of the fourth conveying pipe 2021 penetrates through the outer cylinder 201 and extends to the outer side of the outer cylinder 201 to be fixedly connected with one air end of the three-way connecting piece 203;
the other two ventilation ends of the three-way connection 203 are fixedly connected with fifth delivery pipes 2031, the fifth delivery pipes 2031 are fixedly connected with first electromagnetic valves 2032, the other end of one fifth delivery pipe 2031 is fixedly connected to the air outlet end of the air pump 204, and the arrangement of the first electromagnetic valve 2032 can control the on-off of the fifth delivery pipe 2031;
one first connecting head 2011 of the adjusting mechanism 2 used for being matched with the main air inlet pipe 1 is fixedly sleeved with one end of the main air inlet pipe 1, the other first connecting head 2011 is fixedly sleeved with one end of the first conveying pipe 3, the main air inlet pipe 1 is also fixedly provided with a second electromagnetic valve 101, and the arrangement can realize oxygen delivery from the main air inlet pipe 1 to the adjusting mechanism 2;
one first connecting head 2011 of the adjusting mechanism 2, which is used for being matched with the auxiliary air inlet pipe 7, is fixedly sleeved with one end of the auxiliary air inlet pipe 7, the other first connecting head 2011 is fixedly sleeved with one end of the third conveying pipe 8, the auxiliary air inlet pipe 7 is also fixedly provided with a third electromagnetic valve 701, and the arrangement can realize oxygen delivery from the auxiliary air inlet pipe 7 to the adjusting mechanism 2;
the operation principle of the above arrangement is that the PLC controller can control the first solenoid valve 2032 and the air pump 204, oxygen can be supplied to the airbag 202 by the operation of the air pump 204 to inflate the airbag 202, and the internal space of the outer tube 201 is controlled, and when the air pump 204 stops operating, the first solenoid valve 2032 of the other fifth delivery pipe 2031 is opened, so that the gas in the airbag 202 is discharged under the action of the atmospheric pressure, and the airbag 202 is reset.
Referring to fig. 4-6, the detecting mechanism 4 includes an outer box 401, a swing ball 402, a rotating disc 403 and a fixed column 404, the swing ball 402 is disposed at the lower end of the inner part of the outer box 401, the swing ball 402 is fixedly connected to the outer side wall of the lower end of the rotating disc 403 through a connecting rod 4021, the rotating disc 403 is slidably sleeved on the fixed column 404, two ends of the fixed column 404 are fixedly connected to the inner wall of the outer box 401 through a fixing disc 4041, and the arrangement can realize the rotation of the connecting body of the swing ball 402 and the connecting rod 4021 with the fixed column 404 as the axis;
the two end faces of the outer box 401 are respectively provided with a second connecting joint 4011, the second connecting joints 4011 are communicated with a circulation cavity in the outer box 401, one second connecting joint 4011 is fixedly connected with one end of the first conveying pipe 3, and the other second connecting joint 4011 is fixedly connected with one end of the second conveying pipe 5, so that oxygen can circulate from the outer box 401, a connecting straight line between the two second connecting joints 4011 is perpendicular to an axis of the fixing column 404, and the swinging of the swinging ball 402 under the action of air flow can be realized;
arc-shaped grooves 4031 are symmetrically arranged on two side faces of one end, close to the first conveying pipe 3, of the rotating disc 403, and one end of each arc-shaped groove 4031 is arranged right below a vertical central plane of the rotating disc 403; the depth of the circular arc groove 4031 is gradually increased from one end right below the rotating disc 403 to the other end; a distance measuring sensor 4042 is arranged under one side face, close to the rotating disc 403, of the fixed disc 4041, the distance measuring sensor 4042 and the arc-shaped groove 4031 are arranged in a concentric mode, and under the matching effect of the distance measuring sensor 4042 and the arc-shaped groove 4031, the swinging angle of the rotating disc 403 can be detected according to the depth of the arc-shaped groove 4031 detected by the distance measuring sensor 4042;
the fixed columns 404 on the two sides of the rotating disc 403 are sleeved with the positioning sleeves 405 in a sliding mode, the positioning sleeves 405 are matched with the locking bolts 4051 in a spiral mode, one ends of the locking bolts 4051 are in contact with the outer side walls of the fixed columns 404, and the positioning sleeves 405 can limit the rotating disc 403;
the theory of operation of above-mentioned setting does, and during the use, the air current produces the oxygen stream in getting into outer container 401, and under the effect of oxygen circulation, tilt and roll take place for pendulum ball 402, and corresponding rolling disc 403 takes place to rotate, and range sensor 4042 can detect the circular arc recess 4031 after the swing this moment to in feeding back the result that detects to the PLC controller, can realize the monitoring of oxygen flow size through rolling disc 403 pivoted angle, the preferred hollow metal spheroid of pendulum ball 402.
Referring to fig. 3 and 9, the second delivery pipe 5 is fixedly connected to one end of the connecting pipe 6 through a connecting ring 601, while the other end of the connecting pipe 6 is fixedly connected to a flange 602, and the flange 602 at one end of the connecting pipe 6 is fixedly connected to the air inlet of the side-blown converter through a fixing bolt;
first external thread sleeves 6011 with equal inner diameters are symmetrically arranged on two sides of the connecting ring 601, one of the first external thread sleeves 6011 is spirally matched in the second conveying pipe 5, and the other first external thread sleeve 6011 is spirally matched on an internal thread 603 on the inner wall of one end of the connecting pipe 6, so that detachable connection between the second conveying pipe 5 and the connecting pipe 6 can be realized;
a second external thread sleeve 6021 with the same inner diameter is arranged on one side surface of the flange plate 602, the second external thread sleeve 6021 is screwed on the internal thread 603 on the inner wall of one end of the connecting pipe 6, a plurality of mounting holes 6022 are uniformly distributed on the flange plate 602 at the outer side of the second external thread sleeve 6021 along the circumferential direction, and the detachable connection between the connecting pipe 6 and the side-blown converter can be realized through the arrangement;
an inner pipe is further arranged inside the connecting pipe 6, the inner pipe mainly comprises two semicircular arc plates 605 which are symmetrically arranged, two end faces of one semicircular arc plate 605 are provided with rectangular clamping grooves 6053 along the axial direction, meanwhile, two end faces of the other semicircular arc plate 605 are provided with rectangular clamping strips 6054 along the axial direction, the rectangular clamping strips 6054 are used for being in clearance fit with the rectangular clamping grooves 6053, and the arrangement can realize the sealing fit between the two semicircular arc plates 605;
a plurality of groups of arc-shaped blocking pieces 6052 are uniformly distributed on the inner wall of the inner pipe along the axial direction, each group of arc-shaped blocking pieces 6052 consists of a plurality of arc-shaped blocking pieces 6052 uniformly distributed along the circumferential direction of the inner pipe, the free ends of the arc-shaped blocking pieces 6052 are arranged along one end far away from the second conveying pipe 5, and the arrangement of the arc-shaped blocking pieces 6052 can intercept dust to prevent the dust from entering the second conveying pipe 5 and a subsequent connecting part;
the middle part of the outer side wall of the semicircular plate 605 is also provided with a T-shaped limiting plate 6051 along the axis direction, the T-shaped limiting plate 6051 is clamped in a T-shaped limiting groove 604 on the inner wall of the connecting pipe 6 in a sliding manner, two ends of the T-shaped limiting groove 604 are arranged in an opening manner, the arrangement can realize the limiting and guiding of the semicircular plate 605 in the connecting pipe 6, and meanwhile, the arrangement of the openings at the two ends of the T-shaped limiting groove 604 facilitates the dismounting and mounting of the inner cylinder;
above-mentioned setting makes things convenient for the clearance of staff to laying dust in the inner tube, when the clearance, only need rotate go-between 601 and flange 602 can be in order to realize connecting pipe 6 respectively with second conveyer pipe 5 and the side blown stove between the dismantlement is accomplished, take the inner tube out from connecting pipe 6 to expand two semicircle arc 605, can realize the clearance of the inside laying dust of inner tube.
The invention also provides a use method of the oxygen supply device for the oxygen-enriched side-blown converter, which comprises the following steps:
s1: one end of a main air inlet pipe 1 is connected to a first air source, and one end of an auxiliary air inlet pipe 7 is connected to a second air source;
s2: the PLC controller controls the second electromagnetic valve 101 to be opened, the third electromagnetic valve 701 to be closed, oxygen enters the detection mechanism 4 through the main air inlet pipe 1 and the first delivery pipe 3, and the pendulum ball 402 inclines along the air flow direction under the air flow;
s3: the depth of the circular arc groove 4031 can be monitored by the ranging sensor 4042 when the pendulum ball 402 rotates;
s4: setting a depth numerical range to be detected by a distance measuring sensor 4042 through a PLC according to the oxygen flux;
s5: when the value detected by the distance measuring sensor 4042 is greater than the predetermined value, the PLC controller controls the suction pump 204 on the adjusting mechanism 2 connected to the first delivery pipe 3 to operate, and the air bag 202 is inflated under the action of air blowing to reduce the air flow; when the value detected by the distance measuring sensor 4042 is smaller than the predetermined value, the PLC controller controls the third electromagnetic valve 701 to be opened, and controls the suction pump 204 on the adjusting mechanism 2 connected to the third delivery pipe 8 to operate according to the specific detection data;
s6: after the operation is finished, the air pump 204 stops operating, the first electromagnetic valve 2032 on the fifth delivery pipe 2031 connected to the air pump 204 is closed, and the first electromagnetic valve 2032 on the other fifth delivery pipe 2031 is opened, so that the air in the airbag 202 is exhausted under the action of the atmospheric pressure.
Through the operation of the oxygen supply device using method stabilized by the oxygen-enriched side-blown furnace, the electrical elements in the device are intelligently controlled by the PLC in a matching way, the stability of the whole oxygen supply device during oxygen delivery can be realized, and the practicability is high.
The above are only preferred embodiments of the present invention, and the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made to the technical solutions described in the above embodiments, and to some of the technical features thereof, are included in the scope of the present invention.
Claims (10)
1. The utility model provides an oxygen supply apparatus is stabilized to oxygen boosting side-blown converter, includes adjustment mechanism (2), detection mechanism (4) and connecting pipe (6), its characterized in that: one end of the detection mechanism (4) is communicated and connected with one end of the adjusting mechanism (2) through the first conveying pipe (3), the other end of the detection mechanism (4) is communicated and connected with one end of the connecting pipe (6) through the second conveying pipe (5), the other end of the adjusting mechanism (2) connected with the first conveying pipe (3) is communicated and provided with a main air inlet pipe (1), the main air inlet pipe (1) is also communicated and connected with one end of the other adjusting mechanism (2) through the third conveying pipe (8), and the other end of the adjusting mechanism (2) connected with the third conveying pipe (8) is communicated and provided with an auxiliary air inlet pipe (7);
the adjusting mechanism (2) comprises an outer cylinder (201), an air bag (202), a three-way connecting piece (203) and a suction pump (204), wherein the air bag (202) is arranged on the inner side of the outer cylinder (201) along the axial direction of the outer cylinder (201), and two ends of the air bag (202) are fixedly connected to the inner wall of the outer cylinder (201) through connecting frames (2022);
the middle part of the lower end of the air bag (202) is also fixedly connected with a fourth conveying pipe (2021), and the other end of the fourth conveying pipe (2021) penetrates through the outer cylinder (201) and extends to the outer side of the outer cylinder (201) to be fixedly connected with one air end of the three-way connecting piece (203);
the other two ventilation ends of the three-way connecting piece (203) are fixedly connected with fifth conveying pipes (2031), the fifth conveying pipes (2031) are fixedly connected with first electromagnetic valves (2032), and the other end of one fifth conveying pipe (2031) is fixedly connected to the air outlet end of the air pump (204);
the detection mechanism (4) comprises an outer box (401), a swing ball (402), a rotating disc (403) and a fixed column (404), the swing ball (402) is arranged at the position of the lower end inside the outer box (401), the swing ball (402) is fixedly connected to the outer side wall of the lower end of the rotating disc (403) through a connecting rod (4021), the rotating disc (403) is sleeved on the fixed column (404) in a sliding mode, and two ends of the fixed column (404) are fixedly connected to the inner wall of the outer box (401) through fixed discs (4041);
arc-shaped grooves (4031) are symmetrically formed in two side faces of one end, close to the first conveying pipe (3), of the rotating disc (403), and one end of each arc-shaped groove (4031) is arranged right below a vertical central plane of the rotating disc (403); the depth of the circular arc groove (4031) is gradually increased from one end right below the rotating disc (403) to the other end;
a distance measuring sensor (4042) is arranged under one side face, close to the rotating disc (403), of the fixed disc (4041), and the distance measuring sensor (4042) and the arc-shaped groove (4031) are arranged in a concentric mode;
the second conveying pipe (5) is fixedly connected with one end of the connecting pipe (6) through a connecting ring (601), meanwhile, the other end of the connecting pipe (6) is fixedly connected with a flange plate (602), and the flange plate (602) on one end of the connecting pipe (6) is fixedly connected to an air inlet of the side-blown converter through a fixing bolt;
an inner pipe is further arranged inside the connecting pipe (6), the inner pipe mainly comprises two semicircular arc plates (605) which are symmetrically arranged, rectangular clamping grooves (6053) are formed in two end faces of one semicircular arc plate (605) along the axial direction, meanwhile, rectangular clamping strips (6054) are arranged in two end faces of the other semicircular arc plate (605) along the axial direction, and the rectangular clamping strips (6054) are in clearance fit with the rectangular clamping grooves (6053);
a plurality of groups of arc-shaped blocking pieces (6052) are uniformly distributed on the inner wall of the inner pipe along the axis direction, each group of arc-shaped blocking pieces (6052) consists of a plurality of arc-shaped blocking pieces (6052) uniformly distributed along the circumferential direction of the inner pipe, and the free ends of the arc-shaped blocking pieces (6052) are arranged along one end far away from the second conveying pipe (5);
the middle part of the outer side wall of the semicircular arc-shaped plate (605) is also provided with a T-shaped limiting plate (6051) along the axis direction, the T-shaped limiting plate (6051) is clamped in a sliding way in a T-shaped limiting groove (604) on the inner wall of the connecting pipe (6), and two ends of the T-shaped limiting groove (604) are arranged in an opening way.
2. The oxygen supply device of claim 1, wherein the outer cylinder (201) has first connectors (2011) on both ends, and the first connectors (2011) are connected to the flow chamber inside the outer cylinder (201).
3. The oxygen supply device for the oxygen-enriched side-blown converter is characterized in that one first connecting head (2011) of the adjusting mechanism (2) matched with the main air inlet pipe (1) is fixedly sleeved with one end of the main air inlet pipe (1), the other first connecting head (2011) is fixedly sleeved with one end of the first conveying pipe (3), and a second electromagnetic valve (101) is fixedly arranged on the main air inlet pipe (1).
4. The oxygen supply device for the oxygen-enriched side-blown converter as claimed in claim 2, wherein a first connecting head (2011) of the adjusting mechanism (2) used for being matched with the auxiliary air inlet pipe (7) is fixedly sleeved with one end of the auxiliary air inlet pipe (7), meanwhile, the other first connecting head (2011) is fixedly sleeved with one end of the third delivery pipe (8), and a third electromagnetic valve (701) is fixedly installed on the auxiliary air inlet pipe (7).
5. The oxygen supply device is stabilized by the oxygen-enriched side-blown converter as claimed in claim 1, wherein the two end faces of the outer box (401) are respectively provided with a second connector (4011), the second connectors (4011) are communicated with the circulation cavity inside the outer box (401), one of the second connectors (4011) is fixedly connected with one end of the first delivery pipe (3), and the other second connector (4011) is fixedly connected with one end of the second delivery pipe (5).
6. The oxygen supply device for the oxygen-enriched side-blown converter is characterized in that a connecting straight line between the two second connectors (4011) is perpendicular to the axis of the fixed column (404).
7. The oxygen supply device for the oxygen-enriched side-blown converter is characterized in that positioning sleeves (405) are sleeved on fixing columns (404) on two sides of a rotating disc (403) in a sliding mode, locking bolts (4051) are matched on the positioning sleeves (405) in a threaded mode, and one ends of the locking bolts (4051) are in contact with the outer side walls of the fixing columns (404).
8. The oxygen supplying apparatus for an oxygen-enriched side-blown converter as claimed in claim 1, wherein the connecting ring (601) is symmetrically provided with first male thread sleeves (6011) of equal inner diameter at both sides, one of the first male thread sleeves (6011) is screw-fitted in the second delivery pipe (5), and the other first male thread sleeve (6011) is screw-fitted on the female thread (603) of the inner wall of one end of the connecting pipe (6).
9. The oxygen supply device of the oxygen-enriched side-blown furnace of claim 1, wherein a second external thread bushing (6021) with equal inner diameter is arranged on one side surface of the flange (602), the second external thread bushing (6021) is screwed on the internal thread (603) on the inner wall of one end of the connecting pipe (6), and a plurality of mounting holes (6022) are uniformly distributed on the flange (602) at the outer side of the second external thread bushing (6021) along the circumferential direction.
10. The use method of the oxygen supply device for the oxygen-enriched side-blown converter according to any one of claims 1 to 9, is characterized by comprising the following steps:
s1: one end of the main air inlet pipe (1) is connected to a first air source, and one end of the auxiliary air inlet pipe (7) is connected to a second air source;
s2: the PLC controller is used for controlling the second electromagnetic valve (101) to be opened, the third electromagnetic valve (701) to be closed, oxygen enters the detection mechanism (4) through the main air inlet pipe (1) and the first conveying pipe (3), and the pendulum ball (402) inclines along the air flow direction under the air flow;
s3: the depth of the circular arc groove (4031) can be monitored by a distance measuring sensor (4042) when the pendulum ball (402) rotates;
s4: setting a depth numerical range to be detected by a distance measuring sensor (4042) through a PLC (programmable logic controller) according to the oxygen flux;
s5: when the value detected by the distance measuring sensor (4042) is larger than a preset value, the PLC controls the air suction pump (204) on the adjusting mechanism (2) connected with the first conveying pipe (3) to work, and the air bag (202) is expanded under the action of air blowing to reduce the air flow; when the value detected by the distance measuring sensor (4042) is smaller than the preset value, the PLC controls the third electromagnetic valve (701) to be opened, and controls the air suction pump (204) on the adjusting mechanism (2) connected with the third conveying pipe (8) to work according to specific detection data;
s6: after the work is finished, the air pump (204) stops working, the first electromagnetic valve (2032) on the fifth delivery pipe (2031) connected with the air pump (204) is closed, meanwhile, the first electromagnetic valve (2032) on the other fifth delivery pipe (2031) is opened, and gas in the air bag (202) is discharged under the action of atmospheric pressure.
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| CN202110354472.7A CN113218190B (en) | 2021-04-01 | 2021-04-01 | Oxygen supply device for stabilizing oxygen supply of oxygen-enriched side-blown converter and use method thereof |
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