CN103357832A - Pneumatic material feeding type automatic slag adding machine - Google Patents

Pneumatic material feeding type automatic slag adding machine Download PDF

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Publication number
CN103357832A
CN103357832A CN2013103223948A CN201310322394A CN103357832A CN 103357832 A CN103357832 A CN 103357832A CN 2013103223948 A CN2013103223948 A CN 2013103223948A CN 201310322394 A CN201310322394 A CN 201310322394A CN 103357832 A CN103357832 A CN 103357832A
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China
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slag
hopper
adding machine
feeding type
pump housing
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CN2013103223948A
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CN103357832B (en
Inventor
杨建华
胡会军
施春月
孙烈宁
顾志君
张菊华
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Baoshan Iron and Steel Co Ltd
Shanghai Baosight Software Co Ltd
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Baoshan Iron and Steel Co Ltd
Shanghai Baosight Software Co Ltd
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Publication of CN103357832A publication Critical patent/CN103357832A/en
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Abstract

The invention discloses a pneumatic material feeding type automatic slag adding machine which comprises a slag trolley, a material box, at least one metering pump, a slag blower, a material mixing pipe and a stirring mechanism, wherein the slag trolley comprises a trolley body on which four wheels and a handle are arranged; the material box is arranged on the trolley body of the slag trolley through a supporting seat; a material box cover is arranged on the material box; the lower part of the material box is conical; at least one material outlet is formed in the bottom of the material box; each metering pump is correspondingly arranged below each material outlet of the material box; an inlet of the slag blower is correspondingly formed below an outlet of each metering pump; the material mixing pipe is correspondingly arranged below an outlet of the slag blower and is connected with a material distribution pipe of a crystallizer through a connection hose; the stirring mechanism comprises a stirring piece and a driving motor thereof; the stirring piece is arranged on the lower part in the material box. By adopting gas continuous feeding, the pneumatic material feeding type automatic slag adding machine has the characteristics that the input and the use are facilitated, the slag adding machine is small in size, protection slag cannot be powdered in a slag adding process, the improvement of the site environment and the reduction of the consumption of the protection slag are facilitated, the slag adding machine body is low in energy consumption, runs with no noise and is low in cost and the like.

Description

A kind of pneumatic feeding type automatic slag adding machine
Technical field
The invention belongs to continuous casting production auxiliary equipment, particularly a kind of pneumatic feeding type automatic slag adding machine.
Background technology
In the continuous casting process, according to the steel grade requirement, dissimilar covering slag is added on the crystallizer molten steel surface automatically and equably, prevents that molten steel secondary oxidation, heat radiation are too fast, play simultaneously lubricated, conduct heat, fill the effect such as air gap.
At present, the similar producer of continuous casting in China machine adopts basically that manually to add covering slag be main, and its defective is to add the quantity of slag to be difficult to control, and inhomogeneous pushing easily caused the slab product quality problem.Simultaneously, artificial covering slag adds mode, and operative employee's labour intensity is larger, and the covering slag of covering slag consumption and loss is larger on the impact that environment causes.
Along with the development of steel-making continuous casting equipment technology, the covering slag automatically adding device shows its importance aspect slab quality control gradually, and using automatic slag adding machine to replace manually adding slag has become one of important channel of improving the continuous casting steel billet product quality.
The continuous casting automatic slag adding machine is compared the original slag that manually adds, and incomparable superiority is arranged.Because manually adding covering slag is difficult to guarantee that slag evenly adds, can not keep the stable of covering slag melting layer, and the unstable quality of bleed-out wrong report and slab that easily causes of melting layer is unstable, thereby also easily causes the too thick chance of slag that causes of slag blanket to increase.Automatic slag guarantees the even adding of slag charge, and slab quality is high and stable.Add up according to Taiyuan Iron ﹠ Steel Group Co., Ltd.; the conticaster that has adopted automatic slag adding machine to produce; the slag inclusion learies of continuous casting steel billet is reduced to 1.8kg/t by 2.13kg/t, and the unit consumption of covering slag descends approximately 6%, and BO (breakout prediction) alarm times reduces greatly simultaneously.In addition, adopt automatic slag adding machine also to save human cost, greatly reduce workman's labour intensity.
At present, the principle of slag automaticv feeder of continuous casting mainly contains gravity and adds the slag method, namely utilizes the deadweight of covering slag, adds the mode of crystallizer downwards from eminence; The screw feeder method namely realizes feed by the modes such as spring lever in the electric machine rotation cloth tube; Vibrating feed method: namely adopt the driven by motor cam to realize hopper or cloth tube vibration, covering slag is added crystallizer; Blowing process discloses a kind of gas, triple valve used such as the patent No.: CN201061821 " continuous casting casting powder material feeding device ", and pulse jet adds crystallizer etc. with covering slag;
In the world; the conticaster of the integrated iron and steel works that some are large-scale; for example the Hilton steel mill of Di Sen factory, Hertford steel mill of U.S. Niu Ke company and the Steel Co., of Canada Ltd. of some factories of nippon, Germany has all used the covering slag automatic slag adding machine; operation conditions is good, and the quality of slab has obtained good improvement.The automatic slag adding machine that these steel mills use has plenty of designed, designed and makes, to apparatus structure and Yan Youfan has letter, wherein with the casting machine construction with to transform the operating position of the slag adding machine equipment that drops into synchronously more better.There is the KBK company of Japan in the manufactory that makes in the world this equipment, Austrian NUMTEC company etc.
China Patent No. CN200910103559.6 discloses a kind of " Pneumatic conveying type automatic mold powder feeding device ", and screw feeder is still adopted in its pneumatic conveying that only is used at this place from large hopper to small bins when adding crystallizer.The slag adding machine of this structure exists entire length long, and screw feeder causes the shortcomings such as the covering slag efflorescence is serious.
Radium molybdenum company designed a kind of novel robot automatic slag adding machine in 2012, the path type moving cloth of this slag adding machine above in crystallizer has certain advantage, this distributing mode also has similar function on the cantilevered slag adding machine of the JFE of Japan, but still has slag charge transmission efflorescence and design and the problems such as the scene is compatible, cost is expensive.
In use there is different defectives separately in existing automatic slag adding machine, integrates as follows:
1. Whole Equipment length is long, mechanism is huger, many with the interference of field apparatus, use inconvenient, comprise: slag charge bucket covering slag adds inconvenient, inconvenience is located, moves, deposited to slag adding machine, at tundish replacing, different steel grade dowel plate, drag for slag, outlet replacing or very inconvenient when unusually producing, easily break equipment;
2. employing screw rod transmission, the dust formation of covering slag is very serious, has affected mold flux property, the while contaminated environment, the consumption of increase covering slag, the on-the-spot existence adds the slag noise simultaneously; And adopt the system of gravity transfer to carry out larger transformation to platform, and being fit to casting machine newly-built, amount of investment is also larger;
3. the function imperfection can't be added up consumption, and the hopper emptying time is long, can't adjust separately feed according to mold liquid level characteristic both sides;
4. add the slag tube material mold liquid level detecting sensor is easily produced interference;
5. covering slag heating is inhomogeneous, the malleation that produces during heating so that ground-slag around bung, disperse out.The slag charge waste affects production environment;
6. equipment is complicated, and manufacturing cost is high, and is difficult in maintenance, and the energy consumption of motor is larger.
Summary of the invention
The object of the present invention is to provide a kind of pneumatic feeding type automatic slag adding machine; adopt the gas continuous-feeding; has input, easy to use; the slag adding machine volume is little, with miscellaneous equipment and operation without interfering; add not efflorescence of slag process covering slag; the characteristics such as be more conducive to the reduction that the improvement of site environment and covering slag consume, slag adding machine body energy consumption is low, and operation noiselessness, cost are low.
For achieving the above object, technical scheme of the present invention is:
A kind of pneumatic feeding type slag adding machine, it comprises, the slag charge dolly comprises car body, establishes four wheels and handle on it; Hopper is arranged on the slag charge dolly car body by supporting seat, establishes the hopper lid on the hopper, and the hopper bottom is taper, and the bottom is provided with at least one discharging opening; At least one measuring pump, correspondence are arranged at hopper discharging opening below; Slag charge wind blower, its import connect the tremie pipe of described measuring pump outlet, mixing tube, and correspondence is arranged at the outlet below of described slag charge wind blower, and is connected with the cloth tube of crystallizer by connecting hose; Rabbling mechanism comprises stirring parts and drive motors thereof; Stirring parts is arranged at bottom in the hopper; Operation controlling organization PLC, described measuring pump, rabbling mechanism drive motors are electrically connected respectively operation controlling organization PLC.
Further, described hopper comprises, the hopper body, and the hopper lid is established at the top, and the bottom is tapered, and hopper body inner bottom part central authorities are the cone structure of projection, and the installation through hole is established at the cone structure top; Hopper body inner bottom part is established discharging opening; Connect rotating disk, central authorities establish a column on it, are arranged in the installation through hole of hopper body inner bottom part central authorities; Charge level measurer is inserted in hopper body internal upper part one side, and is electrically connected operation controlling organization PLC.
Described stirring parts is a frame structure, and some paddles are set in the framework, and frame mid portion is connected in the column that connects on the rotating disk; Described drive motors is reducing motor, is arranged at hopper body bottom center by support, and its output shaft connects rotating disk central authorities, is with the turntable rotation that is dynamically connected with this, thereby drives the stirring parts rotation.
Described hopper lid comprises fixedly hopper lid, movable material case lid; Fixedly hopper lid is arranged at hopper bodies top one side, and the activity of movable material case lid is slidedly arranged on fixedly in the hopper lid, and skids off in covering along fixing hopper.
The screen pack with at least one broken bag nail is established in described hopper lid standing part below.
Described paddle top is reversed to a side around its central shaft.
Described hopper body outer wall ring is established heater.
Exhaust outlet is established on described hopper body top.
Described hopper bottom is provided with and divides into quick drain hole.
Described hopper below is provided with charge drawer and corresponding slide rail, and slide rail is arranged on the car body of slag charge dolly by fixed support.
Further, measuring pump of the present invention comprises, the pump housing, and its central authorities offer a manhole, form a cavity structure in the pump housing, and the pump housing top at cavity structure top is offered respectively charging hole, steam vent along its length; Offer discharge opening on the pump housing of cavity structure bottom; Pump housing both end sides arranges outer end cap; Impeller is arranged in the pump housing cavity structure, establishes some blades on it, and the impeller both end sides is established inner end cap, cooperates with inner end cap along impeller by some blades circumferentially to form some accommodating cavities that can accommodating slag charge; Upper connecting base is arranged at pump housing upper surface, and the corresponding pump housing is provided with charging hole and steam vent on the upper connecting base, and upper connecting base also is provided with installation limited bayonet and the fixing threaded hole that is connected with hopper; Lower connecting base is arranged at pump housing lower surface, and the corresponding pump housing discharge opening of lower connecting base is offered the material hole; Tremie pipe, one end are connected in lower connecting base material hole; Mixing tube is established the connecting hole of planting for the tremie pipe other end on it; Variable-frequency motor and corresponding reductor, power transmission shaft are arranged at outside the distolateral outer end cap of the pump housing, and power transmission shaft passes the outer end and is placed on the interior impeller connection of the pump housing, and variable-frequency motor is electrically connected operation controlling organization PLC.
The outer face that described impeller is corresponding with pump housing inwall is the inclined-plane of 10~20 degree.
Establish mud hole and sealing bolt between the described pump housing corresponding inner end cap in bottom and the outer end cap.
Vertically be provided with a blast pipe suitable for reading that leads to the slag adding machine hopper in the described steam vent.
In addition, slag charge wind blower of the present invention comprises, slag charge pipe, one end are established adpting flange and be connected with the tremie pipe of measuring pump outlet; Inner sleeve is sheathed on outside the described slag charge pipe, and inner sleeve one end is limited on the slag charge pipe by a spacing ring, and described spacing ring is scheduled on the slag charge pipe by screw lock; Inner sleeve front inner wall and slag charge pipe middle part threaded engagement; Air permeable plate is annular, is sheathed on outside the slag charge pipe, and the air permeable plate end face is along circumferentially establishing some air-vents, and air permeable plate one end face is resisted against the other end of described inner sleeve; Outer tube is sheathed on outside inner sleeve and the air permeable plate, by bolt air permeable plate is fixed in outer tube; The outer tube outlet side is conical pipe, and the other end is spacing by described spacing ring; Air permeable plate, spacing ring by outer tube, inner sleeve and two ends form a pressure stabilizing cavity, establish snap joint and air supply hose on the outer tube of corresponding pressure stabilizing cavity, and the gas pressure detection device; Gas pressure detection device attended operation controlling organization PLC; Form gas passage between the inwall of described slag charge pipe front end and outer tube outlet side conical pipe, by the threaded engagement between slag charge pipe and the inner sleeve, realize the movement between slag charge pipe and the outer tube, make the gas passage bore variable.
One side of described outer tube outlet side conical pipe becomes 30~45 ° angle with the outer tube center line.
Gas passage width between the inwall of described slag charge pipe front end and outer tube outlet side conical pipe is 0.1~0.5mm.
The invention has the beneficial effects as follows:
The present invention is fully according to the work condition environment of continuous casting production scene and production operation, operational characteristic design, adopt that the pneumatic conveying feed-type makes that system has that device structure is simple, system run all right, to existing equipment and execute-in-place without interference; Control system can realize that long-range or pusher side controls, and without dust formation, favourable protection mold flux property is constant in adition process for covering slag, is conducive to reduce the unit consumption of covering slag, and environment keeps the scene intact; The equipment operation energy consumption is low, noise is little, device fabrication, maintenance cost are low; Can accurate statistics the covering slag unit consumption, under the environment of humidity, can guarantee by heating system the drying of covering slag; Simultaneously, the sheet billet continuous casting covering slag that this equipment can be used for circle square billet continuous casting crystallizer and various continuous sections adds automatically, and scope on probation is wide.
Description of drawings
Fig. 1 is the schematic perspective view of the embodiment of the invention;
Fig. 2 is the cutaway view of the embodiment of the invention;
Fig. 3 is the structural representation of hopper in the embodiment of the invention;
Fig. 4 is the top view of hopper in the embodiment of the invention;
Fig. 5 is metering pump structure schematic diagram in the embodiment of the invention;
Fig. 6 is the three-dimensional exploded view of embodiment of the invention middle pump body.
Fig. 7 is the cutaway view of embodiment of the invention middle pump body.
Fig. 8 is the sectional arrangement drawings such as embodiment of the invention middle pump body, impeller.
Fig. 9 is the stereogram of measuring pump in the embodiment of the invention.
Figure 10 is the use view of slag charge wind blower in the embodiment of the invention.
Figure 11 is the structure cutaway view of slag charge wind blower in the embodiment of the invention.
Figure 12 is the A-A cutaway view of Figure 11.
Figure 13 is the control schematic diagram of operation controlling organization in the embodiment of the invention.
The specific embodiment
Referring to Fig. 1~Figure 13, a kind of pneumatic feeding type slag adding machine of the present invention, it comprises, slag charge dolly 1 comprises car body 11, establishes four wheels 12 and handle 13 on it; Hopper 2 is arranged on slag charge dolly 1 car body 11 by supporting seat, establishes the hopper lid on the hopper 2, and the hopper bottom is taper, and the bottom is provided with at least one discharging opening; At least one measuring pump 3, correspondence are arranged at hopper discharging opening below; Slag charge wind blower 4, its import correspondence are arranged at the tremie pipe of described measuring pump 3 outlets, mixing tube 5, and correspondence is arranged at the outlet below of described slag charge wind blower 4, and is connected with the cloth tube of crystallizer by connecting hose 51; Rabbling mechanism 6 comprises stirring parts 61 and drive motors 62 thereof; Stirring parts 61 is arranged at hopper 2 interior bottoms; Operation controlling organization PLC7, described measuring pump 3, rabbling mechanism 6 drive motors 62 are electrically connected respectively operation controlling organization PLC7.
Further, described hopper 2 comprises, hopper body 21, and hopper lid 22 is established at the top, and the bottom is tapered, and hopper body 21 inner bottom parts central authorities are the cone structure 211 of projection, and the cone structure top is established through hole 212 is installed; Hopper body 21 inner bottom parts are established discharging opening 23; Connect rotating disk 24, central authorities establish a column 241 on it, are arranged in the installation through hole 212 of hopper body 21 inner bottom part central authorities; Charge level measurer 9 is inserted in hopper body 21 internal upper parts one side, and is electrically connected operation controlling organization PLC7.
The stirring parts 61 of described rabbling mechanism 6 is a frame structure, and some paddles 611 are set in the framework, and frame mid portion is connected in the column 241 that connects on the rotating disk 24; Described drive motors 62 is reducing motor, is arranged at hopper body 21 bottom center by support 63, and its output shaft connects rotating disk 24 central authorities, is with rotating disk 24 rotations that are dynamically connected with this, thereby drives stirring parts 61 rotations.
Described hopper lid 22 comprises fixedly hopper lid 221, movable material case lid 222; Fixedly hopper lid 221 is arranged at hopper body 21 tops one side, and 222 activities of movable material case lid are slidedly arranged on fixedly in the hopper lid 221, and covers in 221 along fixing hopper and to skid off.
A semicircle screen pack 26 with at least one broken bag nail 27 is established in described hopper lid standing part 221 belows, cooperates with the hopper lid to form an integral body.Broken bag nail 27 is fixed on the screen pack 26 with set bolt.
Described paddle 611 tops are reversed to a side around its central shaft.
Described hopper body 21 outer wall rings are established heater 8.Described hopper body 21 side wall upper part are established steam vent 213.
Described hopper 2 bottoms are provided with quick drain hole 25, remaining slag charge in the quick emptying hopper when reloading for hopper.
Described hopper 2 is divided into charge drawer 28 and corresponding slide rail, and slide rail is arranged on the car body 11 of slag charge dolly 1 by fixed support.
Referring to Fig. 5~Fig. 9, measuring pump 3 of the present invention comprises, the pump housing 31, and its central authorities offer a manhole, and at the pump housing 31 interior formation one cavity structures 311, the pump housing top at cavity structure 311 tops is offered respectively charging hole 312, steam vent 313 along its length; Offer discharge opening 314 on the pump housing of cavity structure 311 bottoms; Pump housing both end sides arranges outer end cap 32,32 '; Impeller 33 is arranged in the pump housing cavity structure 311, establishes some blades 331 on it, and the impeller both end sides is established inner end cap 332,332 ', cooperates with inner end cap 332 along impeller 33 by some blades 331 circumferentially to form some accommodating cavities 333 that can accommodating slag charge; Upper connecting base 34 is arranged at the pump housing 31 upper surfaces, and the corresponding pump housing 31 is provided with charging hole 341 and steam vent 342 on the upper connecting base 34, and upper connecting base 34 also is provided with installation limited bayonet 343 and the fixing threaded hole that is connected with hopper 2; Lower connecting base 35 is arranged at the pump housing 31 lower surfaces, and lower connecting base 35 corresponding pump housing discharge openings 314 are offered material hole 351; Tremie pipe 36, one end are connected in lower connecting base material hole 351; Variable-frequency motor 38 and corresponding reductor 381, power transmission shaft 39 are arranged at outside the distolateral outer end cap of the pump housing, and power transmission shaft 39 passes the impeller 33 of outer end cap 32 in the pump housing 31 and connects; Variable-frequency motor 38 is electrically connected operation controlling organization PLC7.
The outer face 334 that described impeller 33 is corresponding with the pump housing 31 inwalls is the inclined-plane of 10~20 degree.
Establish mud hole 315 and sealing bolt 316 between the corresponding inner end cap 332 in the described pump housing 31 bottoms and the outer end cap 32.
Vertically be provided with one in the described steam vent 313 and lead to slag adding machine hopper 2 blast pipe 317 suitable for reading.
Referring to Figure 10~Figure 12, slag charge wind blower 4 of the present invention comprises, slag charge pipe 41, one end are established adpting flange 49 and be connected with tremie pipe 36; Inner sleeve 42 is sheathed on outside the described slag charge pipe 41, and inner sleeve 42 1 ends are limited on the slag charge pipe 41 by a spacing ring 43, and described spacing ring 43 is scheduled on the slag charge pipe 41 by screw lock; Inner sleeve 42 front inner wall and slag charge pipe 71 middle part threaded engagement; Air permeable plate 44 is annular, is sheathed on outside the slag charge pipe 41, and air permeable plate 44 end faces are along circumferentially establishing some air-vents 441, and air permeable plate 44 1 end faces are resisted against the other end of described inner sleeve 42; Outer tube 45 is sheathed on outside inner sleeve 42 and the air permeable plate 44, by bolt air permeable plate 44 is fixed in outer tube 45; Outer tube 45 outlet sides are conical pipe 451, and the other end is spacing by described spacing ring 43; Air permeable plate 44, spacing ring 43 by outer tube 45, inner sleeve 42 and two ends form a pressure stabilizing cavity 40, establish snap joint 46 and air supply hose on the outer tube 45 of corresponding pressure stabilizing cavity 40, and gas pressure detection device 47, gas pressure detection device 47 is electrically connected operation controlling organization PLC7, and is reported to the police by the low material level alarm 10 of operation controlling organization PLC7 control; Form gas passage 48 between the inwall of described slag charge pipe 41 front ends and outer tube 45 outlet side conical pipes 451, by the threaded engagement between slag charge pipe 41 and the inner sleeve 42, realize relatively moving between slag charge pipe 41 and the outer tube 45, make gas passage 48 bores variable.
One side of described outer tube 45 outlet side conical pipes 451 becomes 30~45 ° angle with the outer tube center line.
Gas passage 48 width between the inwall of described slag charge pipe 41 front ends and outer tube outlet side conical pipe 451 are 0.1~0.5mm.
Described slag charge wind blower rear end connects mixing tube 5, and blow gas is with after slag charge mixes in mixing tube, and connecting hose 51 and cloth tube by the rear end connection are blown into the crystallizer side.
After slag adding machine is in place, connect connecting hose 51 and the cloth tube of mixing tube 5 rear ends, open source of the gas, in slag charge wind blower 4, pass into the air of 0.1~0.5kg/cm2 pressure, plugged; Open movable material case lid 222, packed covering slag is added feed box 2, close movable material case lid 222; Set measuring pumps 3 rotating speeds by operation controlling organization 7, after the gas pressure detection device 47 on being installed in slag charge wind blower 4 detected gas pressure in the pressure stabilizing cavity 40 and reaches desired value, measuring pump 3 started automatically, adds slag and begins.
If in adding the slag process, gas pressure detection device 47 detected pressures are unusual, and measuring pump 3 shuts down automatically; Charge level measurer 9 detects the height of covering slag in the hopper 2, sends warning by low material level alarm 10 after the covering slag height is lower than setting value; Slag adding machine calculates the covering slag actual volume of consumption per unit product according to the running speed of measuring pump 3, under low material level alarm 10 alarm condition, and prompting hopper 2 interior fillings, simultaneously covering slag unit consumption calculating is invalid.
When cast finishes, stop first the operation of measuring pump 3 by operation controlling organization 7, close again source of the gas, remove connecting hose 51 and cloth tube and get final product.
When covering slag in weather humidity or the hopper did not use more than 2 hours; by starting hopper heater 8; heater is to hopper 2 heating (heating-up temperature of hopper 2 is between 60~80 ℃); simultaneously hopper rabbling mechanism 6 operations; covering slag in the hopper 2 is slowly stirred, reach the effect of homogeneous heating, if rabbling mechanism 6 faults; slag adding machine still can move, but heater 8 can't start.
When the covering slag kind in the hopper 2 need to be changed, open quick drain hole 25, the covering slag in the hopper flows in the charge drawer 28 fast, closes drain hole 25 after the emptying, charge drawer 28 is pulled out to pour in the special-purpose bucket get final product; Operation control unit and remote control computer are realized communication, and slag adding machine can be controlled at the scene, also can control by remote control computer.
When being used for the circle billet continuous casting, a casting stream only needs to use a fixing cloth tube to meet the demands.
When being used for the light section sheet billet continuous casting, can be in crystallizer independent cloth tube of each fixed placement of both sides of submersed nozzle.
When being used for large section sheet billet continuous casting, can in crystallizer, there be rudder to get final product to cloth tube or the holding movable material-feeding mechanism of the Y shape layout of adjusting function by each fixed placement one brace of both sides of submersed nozzle.
Tightly the fitted demand of the aspects such as production scene, continuous casting covering slag characteristic of the present invention; help to promote the stability that continuous casting is produced; and then for improving continuous casting later process product quality; considered simultaneously and the interference of miscellaneous equipment, environmental protection, convenience, the factors such as reduction operation labour intensity, input and maintenance cost, each big steel business enterprise expand uses at home.

Claims (16)

1. a pneumatic feeding type slag adding machine is characterized in that, comprise,
The slag charge dolly comprises car body, establishes four wheels and handle on it;
Hopper is arranged on the slag charge dolly car body by supporting seat, establishes the hopper lid on the hopper, and the hopper bottom is taper, and the bottom is provided with at least one discharging opening;
At least one measuring pump, correspondence are arranged at hopper discharging opening below;
The slag charge wind blower, the corresponding tremie pipe that connects described measuring pump outlet of its import,
Mixing tube, correspondence are arranged at the outlet below of described slag charge wind blower, and are connected with the cloth tube of crystallizer by connecting hose;
Rabbling mechanism comprises stirring parts and drive motors thereof; Stirring parts is arranged at bottom in the hopper;
Operation controlling organization PLC, described measuring pump, rabbling mechanism drive motors are electrically connected respectively operation controlling organization PLC.
2. pneumatic feeding type slag adding machine as claimed in claim 1 is characterized in that, described hopper comprises,
Hopper body, top are established the hopper lid, and the bottom is tapered, and hopper body inner bottom part central authorities are the cone structure of projection, and the installation through hole is established at the cone structure top; Hopper body inner bottom part is established discharging opening;
Connect rotating disk, central authorities establish a column on it, are arranged in the installation through hole of hopper body inner bottom part central authorities;
Charge level measurer is inserted in hopper body internal upper part one side, and is electrically connected operation controlling organization PLC.
3. pneumatic feeding type slag adding machine as claimed in claim 2 is characterized in that, described stirring parts is a frame structure, and some paddles are set in the framework, and frame mid portion is connected in the column that connects on the rotating disk; Described drive motors is reducing motor, is arranged at hopper body bottom center by support, and its output shaft connects rotating disk central authorities, is with the turntable rotation that is dynamically connected with this, thereby drives the stirring parts rotation.
4. pneumatic feeding type slag adding machine as claimed in claim 1 or 2 is characterized in that, described hopper lid comprises fixedly hopper lid, movable material case lid; Fixedly hopper lid is arranged at hopper bodies top one side, and the activity of movable material case lid is slidedly arranged on fixedly in the hopper lid, and skids off in covering along fixing hopper.
5. such as claim 1 or 2 or 4 described pneumatic feeding type slag adding machines, it is characterized in that, the screen pack with at least one broken bag nail is established in described hopper lid below.
6. pneumatic feeding type slag adding machine as claimed in claim 2 is characterized in that, described paddle top is reversed to a side around its central shaft.
7. pneumatic feeding type slag adding machine as claimed in claim 2 is characterized in that, described hopper body outer wall ring is established heater, and heater is electrically connected operation controlling organization PLC.
8. such as claim 2 or 7 described pneumatic feeding type slag adding machines, it is characterized in that, exhaust outlet is established on described hopper body top.
9. pneumatic feeding type slag adding machine as claimed in claim 1 or 2 is characterized in that, described hopper bottom is provided with quick drain hole.
10. pneumatic feeding type slag adding machine as claimed in claim 1 is characterized in that, described measuring pump comprises,
The pump housing, its central authorities offer a manhole, form a cavity structure in the pump housing, and the pump housing top at cavity structure top is offered respectively charging hole, steam vent along its length; Offer discharge opening on the pump housing of cavity structure bottom; Pump housing both end sides arranges outer end cap;
Impeller is arranged in the pump housing cavity structure, establishes some blades on it, and the impeller both end sides is established inner end cap, cooperates with inner end cap along impeller by some blades circumferentially to form some accommodating cavities that can accommodating slag charge;
Upper connecting base is arranged at pump housing upper surface, and the corresponding pump housing is provided with charging hole and steam vent on the upper connecting base, and upper connecting base also is provided with installation limited bayonet and the fixing threaded hole that is connected with hopper;
Lower connecting base is arranged at pump housing lower surface, and the corresponding pump housing discharge opening of lower connecting base is offered the material hole;
Tremie pipe, one end are connected in lower connecting base material hole;
Variable-frequency motor and corresponding reductor, power transmission shaft are arranged at outside the distolateral outer end cap of the pump housing, and power transmission shaft passes the outer end and is placed on the interior impeller connection of the pump housing; Variable-frequency motor is electrically connected operation controlling organization PLC.
11. pneumatic feeding type slag adding machine as claimed in claim 10 is characterized in that, the outer face that described impeller is corresponding with pump housing inwall is the inclined-plane of 10~20 degree.
12. pneumatic feeding type slag adding machine as claimed in claim 10 is characterized in that, establishes mud hole and sealing bolt between the described pump housing corresponding inner end cap in bottom and the outer end cap.
13. pneumatic feeding type slag adding machine as claimed in claim 10 is characterized in that, is provided with a blast pipe suitable for reading that leads to the slag adding machine hopper in the described steam vent.
14. pneumatic feeding type slag adding machine as claimed in claim 1 is characterized in that, described slag charge wind blower comprises,
Slag charge pipe, one end are established adpting flange and are connected with the tremie pipe of measuring pump outlet;
Inner sleeve is sheathed on outside the described slag charge pipe, and inner sleeve one end is limited on the slag charge pipe by a spacing ring, and described spacing ring is scheduled on the slag charge pipe by screw lock; Inner sleeve front inner wall and slag charge pipe middle part threaded engagement;
Air permeable plate is annular, is sheathed on outside the slag charge pipe, and the air permeable plate end face is along circumferentially establishing some air-vents, and air permeable plate one end face is resisted against the other end of described inner sleeve;
Outer tube is sheathed on outside inner sleeve and the air permeable plate, by bolt air permeable plate is fixed in outer tube; The outer tube outlet side is conical pipe, and the other end is spacing by described spacing ring; Air permeable plate, spacing ring by outer tube, inner sleeve and two ends form a pressure stabilizing cavity, establish snap joint and air supply hose on the outer tube of corresponding pressure stabilizing cavity, and the gas pressure detection device; This gas pressure detection device is electrically connected operation controlling organization PLC; Form gas passage between the inwall of described slag charge pipe front end and outer tube outlet side conical pipe, by the threaded engagement between slag charge pipe and the inner sleeve, realize the movement between slag charge pipe and the outer tube, make the gas passage bore variable.
15. pneumatic feeding type slag adding machine as claimed in claim 14 is characterized in that a side of described outer tube outlet side conical pipe becomes 30~45 ° angle with the outer tube center line.
16. such as the described pneumatic feeding type of claims 14 or 15 slag adding machine, it is characterized in that, the gas passage width between the inwall of described slag charge pipe front end and outer tube outlet side conical pipe is 0.1~0.5mm.
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CN105328149A (en) * 2015-10-29 2016-02-17 芜湖新兴铸管有限责任公司 Automatic feeding device for casting powder
CN109006425A (en) * 2018-09-13 2018-12-18 张靖宜 Simple flowers and trees automatic watering device
CN114260434A (en) * 2021-12-31 2022-04-01 永兴特种材料科技股份有限公司 Automatic covering slag adding device
CN117259701A (en) * 2023-09-28 2023-12-22 济南市电子技术研究所有限公司 Maintenance-free automatic slag adding device

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US4220191A (en) * 1976-05-17 1980-09-02 Slater Steel Industries Limited Method of continuously casting steel
CN2882848Y (en) * 2005-10-21 2007-03-28 朱萃汉 Automatic protective slag feeder for conticast crystallizer
JP4844126B2 (en) * 2006-01-05 2011-12-28 Jfeスチール株式会社 Mold powder supply device and supply method for continuous casting
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CN105328149A (en) * 2015-10-29 2016-02-17 芜湖新兴铸管有限责任公司 Automatic feeding device for casting powder
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CN109006425A (en) * 2018-09-13 2018-12-18 张靖宜 Simple flowers and trees automatic watering device
CN114260434A (en) * 2021-12-31 2022-04-01 永兴特种材料科技股份有限公司 Automatic covering slag adding device
CN117259701A (en) * 2023-09-28 2023-12-22 济南市电子技术研究所有限公司 Maintenance-free automatic slag adding device
CN117259701B (en) * 2023-09-28 2024-02-13 济南市电子技术研究所有限公司 Maintenance-free automatic slag adding device

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