CN101559479A - Pneumatic conveying type automatic mold powder feeding device - Google Patents
Pneumatic conveying type automatic mold powder feeding device Download PDFInfo
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- CN101559479A CN101559479A CNA2009101035596A CN200910103559A CN101559479A CN 101559479 A CN101559479 A CN 101559479A CN A2009101035596 A CNA2009101035596 A CN A2009101035596A CN 200910103559 A CN200910103559 A CN 200910103559A CN 101559479 A CN101559479 A CN 101559479A
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Abstract
A pneumatic conveying type automatic mold powder feeding device belongs to the field of continuous casting process equipment and comprises a large stock bin, a pneumatic conveying device, a middle hopper, an electrically operated valve, a feeding pipe, a small hopper, a screw feeder, a two-dimensional motion mechanism and a base seat. The device uses pneumatic conveying manner to realize remote feeding and to ensure the stock bin to be far away from a continuous caster, thus increasing the storing amount, and the device can allow long-time continuous work; the small hopper, the screw feeder and the two-dimensional motion mechanism are arranged at the lateral wing of a middle tank vehicle, thus avoiding interfering other operations of the worker; the feeding amount can be controlled accurately by gravity blanking and feeding by the screw feeder; the conveying pipeline is completely closed, thus avoiding lag leakage and dust; uniform spreading of large area of mold powder can be realized by the orthogonal coordinate type two-dimensional motion mechanism, and the device is suitable for producing plate blanks and square blanks of different sizes and specifications; the surface quality of steel blanks can be improved by the device, and the device can reduce labor intensity and save the mold powder.
Description
Technical field
The invention belongs to the continuous casting process apparatus field, particularly a kind of Pneumatic conveying type automatic mold powder feeding device is applicable to the slab production of different size specification.
Background technology
Continuous crystallizer protecting slag is an indispensable metallurgical auxiliary during continuous casting of iron and steel is produced.When continuous cast mold is cast, require spreading covering slag on the liquid steel level of crystallizer, form slag blanket, reach lubricated and prevent the purpose that molten steel contacts with air, thereby improve billet quality.Crystallizer protecting residue adding technology is automatically compared the mode that the manual scuppit of traditional workman adds, have joining day and addition controlled, add evenly, improve the billet surface quality, save the labour, advantage such as improve working conditions.The key issue that the covering slag automatically adding device will solve is: (1) same conticaster need be produced the steel billet of different dimensions, the covering slag automatically adding device need be regulated the area of spreading covering slag in a big way, to adapt to the crystallizer mouth of different size; (2) covering slag is closely related in the spreading uniformity coefficient and the billet surface quality of molten steel surface, therefore, needs the accurately addition and the adding frequency of control covering slag; Need add slag for a long time when (3) continuous casting is produced, need a large amount of covering slags, and equipment is many near the continuous cast mold, narrow space is not suitable for the big material bin of amplification quantity covering slag.
The crystallizer protection slag automatically adding device that existing a kind of strength is carried and screw feeding cooperates, as U.S. Pat 4084628, this device employing strength blows covering slag big material bin from afar and arrives nearby little hopper, adopts the screw feeding mode to add slag then.The weak point of this device is: the helical feed pipeline can not move, and therefore is difficult to adapt to the slag that adds of slab and large tracts of land square billet.
Existing a kind of covering slag automatically adding device as Japan Patent JP1057961, comprises 2 feed bins, 3 motors, two auger conveyors and dolly.Dolly is pushed to crystallizer front end suitable for reading by the people, and two carrier pipe outlets are positioned at crystallizer mouth top, by conveying worm the covering slag in the feed bin are input in the crystallizer mouth, swing on horizontal plane by two conveying steel pipes of driven by motor.The weak point of this device is: (1) workman operates in crystallizer the place ahead in a large number, and this device is reinforced from the place ahead, has hindered workman's operation; (2), therefore need the artificial frequent covering slag that adds in hopper secondly because the restriction of dolly size makes feed bin be difficult to do greatlyyer; (3) swing of single-degree-of-freedom is sprayed the flexible production that is difficult to better adapt in a big way different size specification slab of head at radial direction even cooperate.
Existing a kind of covering slag automatically adding device; as Japan Patent JP11239855; adopt the single-degree-of-freedom horizontal hunting to cooperate again to spray head flexible at radial direction, still only be fit to better to adapt to the crystallizer mouth of different slab sizes than the thin slab mold mouth.
In addition, existing equipment all is placed on the dead ahead of intermediate tundish carriage.The covering slag adding apparatus that is placed on the dead ahead has hindered the operator to carry out other work; whether the operator often need observe and have or not clinker in the crystallizer mouth, whether need to clear up clinker or covering slag and add evenly etc., and need carry out work such as cleaning clinker.
Summary of the invention
The objective of the invention is to design a kind of Pneumatic conveying type automatic mold powder feeding device in order to overcome the weak point of prior art.This device can be from than the distant location automatic transport and add covering slag to the continuous casting crystallizer for plate billet mouth, and the covering slag spreading is even, and feeding coal can accurately be regulated; This device does not take the space in crystallizer dead ahead, effectively utilizes the intermediate tundish carriage lateral space; Can long-time continuous add slag, it is few that the workman adds the covering slag number of times; Sealing is carried, and does not have the slag of leakage airborne dust in the course of conveying; Can adapt to the slab production of different size specification in a big way; Improve billet quality and reduce labor strength.
The present invention adopts following technical scheme:
A kind of Pneumatic conveying type automatic mold powder feeding device is characterized in that: comprise big material bin, pneumatic transport equipment, middle hopper, electrically operated valve, charge pipe, little hopper, screw(-type) feeder, two-dimensional motion mechanism and pedestal.Described big material bin is positioned at apart from crystallizer at a distance, is used to deposit a large amount of covering slags.Described pneumatic transport equipment connects big material bin and middle hopper, by pneumatic conveying mode covering slag is transported to middle hopper from big material bin.The below outlet of described middle hopper is connected with an end of charge pipe by electrically operated valve, the other end of charge pipe is connected with the top of little hopper, the bottom of little hopper and the charging aperture of screw(-type) feeder are affixed, screw(-type) feeder is fixed in the end of two-dimensional motion mechanism, the base of two-dimensional motion mechanism is fixed in pedestal, and described pedestal and intermediate tundish carriage are affixed.
Described screw(-type) feeder adopts does not have the axle screw(-type) feeder, comprises motor, feed pipe and helical member.The output shaft of described motor links to each other with an end of helical member, and helical member is arranged in feed pipe, and an end of feed pipe and the shell of motor are affixed.The bending of described feed pipe front end, the end near motor on feed pipe has charging aperture, and the other end of feed pipe is a discharging opening.The bottom Joint of described charging aperture and little hopper, described helical member adopts taenidium or flight.
Described two-dimensional motion mechanism adopts two-dimentional rectangular co-ordinate forms of motion, comprises the first rectilinear motion unit and the second rectilinear motion unit.The described first rectilinear motion unit and the second rectilinear motion unit include firm banking, guide rail, motor, transmission mechanism and motion slide block.All have in the first rectilinear motion unit and the second rectilinear motion unit: guide rail and motor and firm banking are affixed, and the motion slide block set is connected on the guide rail, and the output shaft of motor links to each other with the motion slide block by transmission mechanism.The described first rectilinear motion unit and the second rectilinear motion unit are arranged vertically mutually, wherein the firm banking of the first rectilinear motion unit is fixed on the described pedestal, the firm banking Joint of the motion slide block of the first rectilinear motion unit and the second rectilinear motion unit, the motion slide block of the second rectilinear motion unit and screw(-type) feeder Joint.
In above-mentioned two-dimensional motion mechanism, the described first rectilinear motion unit and the second rectilinear motion unit are provided with travel switch.
The line of the upper entrance place central point of the outlet(discharge) flange central point of described electrically operated valve and little hopper and the angle of horizontal plane are 30 °～90 °.Described two-dimensional motion mechanism is positioned at the flank below of intermediate tundish carriage, and the extended line on the long limit of continuous casting crystallizer for plate billet mouth is through this flank below.The top of described middle hopper and little hopper all has passage, and this passage is connected to dust arrester or is coated with ventilative but does not leak the dedusting material of slag.
Pneumatic conveying type automatic mold powder feeding device of the present invention is characterized in that: be provided with first stuff level switch in middle hopper, be provided with second stuff level switch in little hopper, be provided with the 3rd stuff level switch in big material bin.
Pneumatic conveying type automatic mold powder feeding device of the present invention is characterized in that: described pneumatic transport equipment adopts the Dense Phase Pneumatic Conveying mode to realize, comprises compressed gas source, electrically operated valve, transmission jar, magnetic valve and carrier pipe; Described electrically operated valve is installed on the bottom efferent duct of big material bin, the top that sends jar is connected with electrically operated valve, send pot bottom and be connected with the top of middle hopper by described carrier pipe, from the Compressed Gas pipeline of compressed gas source through magnetic valve with send jar and link to each other with carrier pipe.
Pneumatic conveying type automatic mold powder feeding device of the present invention is characterized in that: described middle hopper can be fixed on the molten steel jar operating platform; Described charge pipe comprises top hose, snap joint, middle part charge pipe and bottom hose; Described top hose and bottom hose all adopt flexible flexible pipe; One end of described top hose is connected with middle hopper by electrically operated valve, the other end of top hose is connected with an end of middle part charge pipe, the other end of middle part charge pipe is connected with the top charging aperture of little hopper by bottom hose, and described snap joint is installed in junction or the junction from top hose to the middle part charge pipe from the electrically operated valve to the top hose.
Pneumatic conveying type automatic mold powder feeding device of the present invention is characterized in that: described middle hopper can also be fixed on the intermediate tundish carriage; Described charge pipe can comprise middle part charge pipe and bottom hose; Described bottom hose adopts flexible flexible pipe; One end of described middle part charge pipe is connected with middle hopper by electrically operated valve, and the other end of middle part charge pipe is connected with the top charging aperture of little hopper by bottom hose.
Pneumatic conveying type automatic mold powder feeding device of the present invention, 1) utilize Pneumatic conveyer to realize remote feeding, make feed bin away from conticaster, increased the storing amount, make this equipment allow long-time non-stop run; 2) with little hopper, screw(-type) feeder and the two-dimensional motion mechanism of small size, rationally be installed near the intermediate tundish carriage flank side of crystallizer, avoided that equipment is placed in crystallizer the place ahead and caused workman's the observation and the obstruction of operation; 3) utilize gravity blanking and screw(-type) feeder feeding, realized the accurate control of feeding quantity; 4) the totally-enclosed leakage slag airborne dust of having avoided of conveyance conduit; 5) utilize the two-dimensional motion mechanism of Cartesian coordinate type to realize the even spreading of larger area covering slag, be adapted to the slab and the square billet production of different size specification; 6) realize evenly adding automatically slag, can improve the billet surface quality, reduced labor strength, also saved covering slag.
Description of drawings
Fig. 1 is the schematic diagram of a kind of embodiment of Pneumatic conveying type automatic mold powder feeding device provided by the invention;
Fig. 2 is a vertical view (middle hopper that do not draw, electrically operated valve and charge pipe etc.) embodiment illustrated in fig. 1.
In Fig. 1 to Fig. 2:
The 1-middle hopper, 11-the-stuff level switch, the 12-passage,
The 2-electrically operated valve,
The 3-charge pipe, the 31-top hose, 32-snap joint,
33-middle part charge pipe, the 34-bottom hose,
The little hopper of 4-, 41-second stuff level switch, the 42-passage,
The 5-screw(-type) feeder, the 51-motor, the 52-feed pipe,
53-helical member (taenidium), the 54-decelerator,
The 6-two-dimensional motion mechanism, the 61-first rectilinear motion unit, the 62-first rectilinear motion unit,
611-first firm banking, the 612-first motion slide block, 613-first motor,
621-second firm banking, the 622-second motion slide block, 623-second motor,
The 7-pedestal,
The 90-intermediate tundish carriage, 91-crystallizer mouth, the 92-pans,
93-molten steel jar operating platform, the 94-covering slag, the 95-molten steel,
96-protects slag blanket, the 97-submersed nozzle, and the big Baogang of 98-water pot,
The 99-casting platform,
The 101-big material bin, 102-the 3rd stuff level switch,
200---pneumatic transport equipment, the 201-compressed gas source, the 202-magnetic valve,
203-carrier pipe, 204-send jar,
The 301-electrically operated valve.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail, but the present invention is not limited only to this.
Pneumatic conveying type automatic mold powder feeding device of the present invention comprises big material bin 101, pneumatic transport equipment 200, middle hopper 1, electrically operated valve 2, charge pipe 3, small powder bucket 4, screw(-type) feeder 5, two-dimensional motion mechanism 6 and pedestal 7 as shown in Figure 1, 2.Described big material bin 101 is positioned at apart from crystallizer 91 at a distance, is used to deposit a large amount of covering slags; Said pneumatic transport equipment 200 connects big material bin 101 and middle hopper 1, by pneumatic conveying mode covering slag is transported to middle hopper 1 from big material bin 101; The below outlet of described middle hopper 1 is connected with an end of charge pipe 3 by electrically operated valve 2, the other end of charge pipe 3 is connected with the top of small powder bucket 4, the charging aperture of the bottom of small powder bucket 4 and screw(-type) feeder 5 is affixed, screw(-type) feeder 5 is fixed in the end of two-dimensional motion mechanism 6, the base of two-dimensional motion mechanism 6 is fixed in pedestal 7, and described pedestal 7 is affixed with intermediate tundish carriage 90; Intermediate tundish carriage 90 is installed on the casting platform 99.
Described screw(-type) feeder 5 adopts does not have the axle screw(-type) feeder, comprise motor 51, feed pipe 52 and helical member 53, the output shaft of described motor 51 links to each other with an end of helical member 53, and helical member 53 is arranged in feed pipe 52, and an end of feed pipe 52 and the shell of motor 51 are affixed; Described feed pipe 52 front end bendings (as shown in Figure 2), the end near motor 51 on feed pipe 52 has charging aperture, and the other end of feed pipe 52 is a discharging opening; The charging aperture on the described feed pipe 52 and the bottom Joint of small powder bucket 4, described helical member 53 adopts taenidium or flight.
Described two-dimensional motion mechanism 6 adopts two-dimentional rectangular co-ordinate forms of motion, and described two-dimensional motion mechanism 6 comprises the first rectilinear motion unit 61 and the second rectilinear motion unit 62; The described first rectilinear motion unit 61 and the second rectilinear motion unit 62 include firm banking 611,621, guide rail, motor 613,623, transmission mechanism and motion slide block 612,622; All have in the first rectilinear motion unit 61 and the second rectilinear motion unit 62: guide rail and motor 613,623 and firm banking 611,621 are affixed, motion slide block 612,622 is socketed on the guide rail, and the output shaft of motor 613,623 links to each other with motion slide block 612,622 by transmission mechanism.In described two-dimensional motion mechanism 6, the first rectilinear motion unit 61 and the second rectilinear motion unit 62 are arranged vertically mutually, and the firm banking 611 of the first rectilinear motion unit 61 is fixed on the described pedestal 7; Firm banking 621 Joints of the motion slide block 612 of the first rectilinear motion unit 61 and the second rectilinear motion unit 62, the motion slide block 622 and screw(-type) feeder 5 Joints of the second rectilinear motion unit 62.
In above-mentioned two-dimensional motion mechanism 6, the described first rectilinear motion unit 61 and the second rectilinear motion unit 62 all adopt stepper motor driving, planetary gear speed-reduction, are with transmission and rolling guide guiding synchronously, wherein are provided with travel switch on the described first rectilinear motion unit 61 and the second rectilinear motion unit 62.
The line of the upper entrance place central point of the outlet(discharge) flange central point of described electrically operated valve 2 and small powder bucket 4 and the angle of horizontal plane are 30 °～90 °, and this angle can guarantee that covering slag freely glides and do not stop up in pipeline.Described two-dimensional motion mechanism 6 is positioned at the flank below of intermediate tundish carriage 90, and the extended line on the long limit of continuous casting crystallizer for plate billet mouth 91 is through below this flank, described two-dimensional motion mechanism 6 be positioned at crystallizer mouth 91 near.The top of described middle hopper 1 and small powder bucket 4 all has passage 12,42, and this passage is connected to dust arrester or is coated with ventilative but does not leak the dedusting material of slag.Described dust arrester such as sack cleaner, described dedusting material is as filtering silk screen.
Present embodiment comprises that first stuff level switch 11, second stuff level switch 41 and the 3rd stuff level switch 102, the first stuff level switch 11 are arranged in the middle hopper 1, and second stuff level switch 41 is arranged in the small powder bucket 4, and the 3rd stuff level switch 102 is arranged in the big material bin 101.
In the present embodiment, said pneumatic transport equipment 200 adopts the Dense Phase Pneumatic Conveying mode to realize, comprises compressed gas source 201, electrically operated valve 301, sends jar 204, magnetic valve 202 and carrier pipe 203; Described electrically operated valve 301 is installed on the bottom efferent duct of big material bin 101, the top that sends jar 204 is connected with electrically operated valve 301, send jars 204 bottom and be connected with the top of middle hopper 1 by described carrier pipe 203, from the Compressed Gas pipeline of compressed gas source 201 through magnetic valve 202 with send jar 204 and link to each other with carrier pipe 203.Compressed Gas adopts compressed helium or dried compressed air.Compressed gas source 201 can adopt compressed helium mechanism of qi or air compressor.
In the present embodiment, described middle hopper 1 can be fixed on the molten steel jar operating platform 93; Described charge pipe 3 comprises top hose 31, snap joint 32, middle part charge pipe 33 and bottom hose 34; Described top hose 31 and bottom hose 34 all adopt flexible flexible pipe; One end of described top hose 31 links to each other with middle hopper 1 by electrically operated valve 2, and the other end of top hose 31 is connected with an end of middle part charge pipe 33, and the other end of middle part charge pipe 33 is connected with the top charging aperture of small powder bucket 4 by bottom hose 34; Described snap joint 32 is installed in from electrically operated valve 2 to top hose 31 junction or the junction from top hose 31 to middle part charge pipe 33, and in the present embodiment, described snap joint 32 is installed in the junction from top hose 31 to middle part charge pipe 33.Described top hose 31 and bottom hose 34 adopt the stainless steel flexible hose.Described middle part charge pipe 33 adopts stainless steel tube.
Described in the present embodiment middle hopper 1 can also be fixed on the intermediate tundish carriage 90; Described charge pipe 3 can also include only middle part charge pipe 33 and bottom hose 34; One end of described middle part charge pipe 33 can also link to each other with middle hopper 1 by electrically operated valve 2, and the other end of middle part charge pipe 33 can be connected with the top charging aperture of small powder bucket 4 by bottom hose 34.
The length long enough of described bottom hose 34 is to guarantee that (small powder bucket 4 is done the planar motion) middle part charge pipe 33 is connected with small powder bucket 4 by bottom hose 34 all the time when two-dimensional motion mechanism 6 is moved thereupon in working space.
Described electrically operated valve 2 adopts electric butterfly valve.
Described big material bin 101 is used to deposit a large amount of covering slags 94, and middle hopper 1 is used to receive the relatively large covering slag 94 that transports by pneumatic transport equipment 200, and small powder bucket 4 is used to receive by the covering slag of gravity transfer mode from middle hopper 1.When electrically operated valve 2 was opened, by the gravity effect, covering slag 94 dropped to the small powder bucket 4 from middle hopper 1, and electrically operated valve 2 and charge pipe 3 have been passed through in the centre.The working space of described two-dimensional motion mechanism 6 can guarantee that the range of movement of discharging opening of the feed pipe 52 of its terminal affixed screw(-type) feeder 5 covers crystallizer mouth 91 tops.
The motor 51 of described screw(-type) feeder 5 also comprises decelerator 54, and the output shaft of the motor 51 of described screw(-type) feeder 5 links to each other with helical member 53 by decelerator 54.This motor 51 adopts the three phase variable frequency motor, is convenient to regulate feeding coal by frequency converter.
During work,, remind the operator in big material bin 101, to add covering slag by warning lamp when the 3rd stuff level switch 102 detects covering slag in the big material bin 101 when not enough.When first stuff level switch 11 detects in the middle hopper 1 covering slag when not enough, remind operator's opens solenoid valve 202 by warning lamp, from big material bin 101, add covering slag to middle hopper 1 by pneumatic conveying mode.This process also can be controlled automatically by controller and finish.
Lid is arranged at described big material bin 101 tops, the convenient covering slag that adds.General big material bin 101 volumes are very big, and the covering slag that the some hrs of can once packing into uses has reduced and adds the slag number of times and reduced labour intensity.The volume of middle hopper 1 is smaller, is convenient to be placed near the intermediate tundish carriage.When second stuff level switch 41 detects in the small powder bucket 4 covering slag when not enough, remind the operator to open electrically operated valve 2 by warning lamp, from middle hopper 1, add covering slag to small powder bucket 4.This process also can be controlled automatically by controller and finish.General small powder bucket 4 covering slag that some minutes uses that is designed to once to pack into.
The operation principle of Pneumatic conveying type automatic mold powder feeding device of the present invention is as follows:
Open electrically operated valve 301, the covering slag in the big material bin 101 drops to and sends in the jar 204, closes electrically operated valve 301.Open magnetic valve 202, the covering slag that will send in jars 204 from the Compressed Gas of compressed gas source 201 is blown in the middle hopper 1, closes magnetic valve 202.Open electrically operated valve 2, deposit in the big hopper 1 covering slag 94 since the effect of self gravitation through electrically operated valve 2, top hose 31, snap joint 32, middle part charge pipe 33 and bottom hose 34, fall to being transported in the small powder bucket 4.Motor 51 rotations this moment; the taenidium 53 that drives in the feed pipe 52 by reductor 54 rotates; when taenidium 53 rotates the covering slag at the charging aperture place (small powder bucket 4 bottoms) of feed pipe 52 discharging opening toward feed pipe 52 is promoted, the surface that final covering slag is spread the molten steel 95 of 91 li in crystallizer mouth forms protection slag blanket 96.Two-dimensional motion mechanism 6 is done the two dimensional surface motion; the screw(-type) feeder 5 and the small powder bucket 4 that drive on its end are done the two dimensional surface motion; to adapt to plate slab crystallizer mouth 91 large-area even spreadings (feed pipe 52 front end bendings can be walked around submersed nozzle 97), adapt to the spreading of the slab continuous casting crystallizer protection slag of different size.
Because big hopper 1 (together with electrically operated valve 2) is fixed in and the fixing molten steel jar operating platform 93 in ground, and other parts of this device (comprise middle part charge pipe 33, bottom hose 34, small powder bucket 4, screw(-type) feeder 5, two-dimensional motion mechanism 6 and pedestal 7 etc.) on intermediate tundish carriage 90, when the mobile intermediate tundish carriage 90 of needs, can realize that this device is separated into two parts by disconnecting snap joint 32: the part and the part that is fixed in intermediate tundish carriage 90 that are fixed in molten steel jar operating platform 93, remove intermediate tundish carriage 90 again to other places this moment, conveniently clears up (pans 92 or crystallizer mouth 91) work accordingly.After removing intermediate tundish carriage 90 and generally occurring in 98 casting of the big bag of molten steel jar and finish or when being in an emergency.
Because 4 carry for sealing from big hopper 1 to the small powder bucket, have therefore guaranteed that covering slag is not contaminated on the one hand, also can not produce airborne dust, also guaranteed on the other hand covering slag from big hopper 1 to small powder bucket 4 again the conveying to crystallizer mouth 91 can carry out continuously.
Because small powder bucket 4 is provided with passage 42, can filter out gas and retain covering slag, can not cause near small powder bucket 4 airborne dusts, can not cause small powder bucket 4 air pressure inside to make the covering slag blocking pipe unusually yet.
Pneumatic conveying type automatic mold powder feeding device of the present invention utilizes Pneumatic conveyer to realize remote feeding, makes feed bin away from conticaster, has increased the storing amount, makes this equipment allow long-time non-stop run; With little hopper, screw(-type) feeder and the two-dimensional motion mechanism of small size, rationally be installed near the intermediate tundish carriage flank side of crystallizer, avoided that equipment is placed in crystallizer the place ahead and caused workman's the observation and the obstruction of operation; Utilize gravity blanking and screw(-type) feeder feeding, realized the accurate control of feeding quantity; The totally-enclosed leakage slag airborne dust of having avoided of conveyance conduit; Utilize the two-dimensional motion mechanism of Cartesian coordinate type to realize the even spreading of larger area covering slag, be adapted to the slab and the square billet production of different size specification; Realize evenly adding automatically slag, can improve the billet surface quality, reduced labor strength, also saved covering slag.
Claims (9)
1, a kind of Pneumatic conveying type automatic mold powder feeding device is characterized in that: comprise big material bin (101), pneumatic transport equipment (200), middle hopper (1), electrically operated valve (2), charge pipe (3), little hopper (4), screw(-type) feeder (5), two-dimensional motion mechanism (6) and pedestal (7); Described big material bin (101) is positioned at apart from crystallizer (91) at a distance, is used to deposit a large amount of covering slags (94); Said pneumatic transport equipment (200) connects big material bin (101) and middle hopper (1), by pneumatic conveying mode covering slag is transported to middle hopper (1) from big material bin (101); The below outlet of described middle hopper (1) is connected by the end of electrically operated valve (2) with charge pipe (3), the other end of charge pipe (3) is connected with the top of little hopper (4), the charging aperture of the bottom of little hopper (4) and screw(-type) feeder (5) is affixed, screw(-type) feeder (5) is fixed in the end of two-dimensional motion mechanism (6), the base of two-dimensional motion mechanism (6) is fixed in pedestal (7), and described pedestal (7) is affixed with intermediate tundish carriage (90).
2, slab continuous casting crystallizer protection slag automatically adding device as claimed in claim 1; it is characterized in that: described screw(-type) feeder (5) adopts does not have the axle screw(-type) feeder; comprise motor (51), feed pipe (52) and helical member (53); the output shaft of described motor (51) links to each other with an end of helical member (53); helical member (53) is arranged in feed pipe (52), and the shell of an end of feed pipe (52) and motor (51) is affixed.
3, slab continuous casting crystallizer protection slag automatically adding device as claimed in claim 1, it is characterized in that: described two-dimensional motion mechanism (6) adopts two-dimentional rectangular co-ordinate forms of motion, comprises the first rectilinear motion unit (61) and the second rectilinear motion unit (62); The described first rectilinear motion unit (61) and the second rectilinear motion unit (62) include firm banking (611), (621) guide rail, motor (613), (623) transmission mechanism and motion slide block (612), (622); All have in the first rectilinear motion unit (61) and the second rectilinear motion unit (62): guide rail and motor (613), (623) and firm banking (611), (621) are affixed, motion slide block (612), (622) are socketed on the guide rail, and the output shaft of motor (613), (623) links to each other with motion slide block (612), (622) by transmission mechanism; The firm banking (611) of the first rectilinear motion unit (61) is fixed on the described pedestal (7); Firm banking (621) Joint of the motion slide block (612) of the first rectilinear motion unit (61) and the second rectilinear motion unit (62); The motion slide block (622) of the second rectilinear motion unit (62) and screw(-type) feeder (5) Joint; The first rectilinear motion unit (61) is arranged vertically mutually with the second rectilinear motion unit (62), is provided with travel switch on the described first rectilinear motion unit (61) and the second rectilinear motion unit (62).
4, slab continuous casting crystallizer protection slag automatically adding device as claimed in claim 1 is characterized in that: the line of the upper entrance place central point of the outlet(discharge) flange central point of described electrically operated valve (2) and little hopper (4) and the angle of horizontal plane are 30 °～90 °; Described two-dimensional motion mechanism (6) is positioned at the flank below of intermediate tundish carriage (90), and the extended line on the long limit of continuous casting crystallizer for plate billet mouth (91) is through this flank below; The top of described middle hopper (1) and little hopper (4) all has passage (12), (42), and this passage is connected to dust arrester or is coated with ventilative but does not leak the dedusting material of slag.
5, Pneumatic conveying type automatic mold powder feeding device as claimed in claim 1; it is characterized in that: in middle hopper (1), be provided with first stuff level switch (11); in little hopper (4), be provided with second stuff level switch (41), in big material bin (101), be provided with the 3rd stuff level switch (102).
6, Pneumatic conveying type automatic mold powder feeding device as claimed in claim 1, it is characterized in that: described pneumatic transport equipment (200) adopts the Dense Phase Pneumatic Conveying mode to realize, comprises compressed gas source (201), electrically operated valve (301), sends jar (204), magnetic valve (202) and carrier pipe (203); Described electrically operated valve (301) is installed on the bottom efferent duct of big material bin (101), the top that sends jar (204) is connected with electrically operated valve (301), send jar (a 204) bottom and be connected, link to each other with carrier pipe (203) with transmission jar (204) through magnetic valve (202) from the Compressed Gas pipeline of compressed gas source (201) by the top of described carrier pipe (203) with middle hopper (1).
7, Pneumatic conveying type automatic mold powder feeding device as claimed in claim 1 is characterized in that: described middle hopper (1) can be fixed on the molten steel jar operating platform (93); Described charge pipe (3) comprises top hose (31), snap joint (32), middle part charge pipe (33) and bottom hose (34); Described top hose (31) and bottom hose (34) all adopt flexible flexible pipe; One end of described top hose (31) is connected with middle hopper (1) by electrically operated valve (2), the other end of top hose (31) is connected with an end of middle part charge pipe (33), the other end of middle part charge pipe (33) is connected by the top charging aperture of bottom hose (34) with little hopper (4), described snap joint (32) is installed in the junction from electrically operated valve (2) to top hose (31), perhaps the junction from top hose (31) to middle part charge pipe (33).
8, Pneumatic conveying type automatic mold powder feeding device as claimed in claim 1 is characterized in that: described middle hopper (1) can also be fixed on the intermediate tundish carriage (90); Described charge pipe (3) can also include only middle part charge pipe (33) and bottom hose (34); One end of described middle part charge pipe (33) is connected with middle hopper (1) by electrically operated valve (2), and the other end of middle part charge pipe (33) is connected by the top charging aperture of bottom hose (34) with little hopper (4).
9, slab continuous casting crystallizer protection slag automatically adding device as claimed in claim 1 or 2, it is characterized in that: described feed pipe (52) front end bending, an end of going up at close motor (51) at feed pipe (52) has charging aperture, and the other end of feed pipe (52) is a discharging opening; The bottom Joint of described charging aperture and little hopper (4), described helical member (52) adopts taenidium or flight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101035596A CN101559479B (en) | 2009-04-09 | 2009-04-09 | Pneumatic conveying type automatic mold powder feeding device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101035596A CN101559479B (en) | 2009-04-09 | 2009-04-09 | Pneumatic conveying type automatic mold powder feeding device |
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| CN101559479A true CN101559479A (en) | 2009-10-21 |
| CN101559479B CN101559479B (en) | 2011-01-19 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756104A (en) * | 2012-07-20 | 2012-10-31 | 清华大学 | Automatic protective slag feeding device for plate blank crystallizer |
| CN103008589A (en) * | 2012-12-14 | 2013-04-03 | 济钢集团有限公司 | Feeding device capable of baking covering slags by utilizing waste heat of tundish |
| CN108404442A (en) * | 2018-05-04 | 2018-08-17 | 上海东富龙科技股份有限公司 | A kind of continuous automatic feeding device of online single tube |
| CN109399095A (en) * | 2018-11-15 | 2019-03-01 | 北京城建集团有限责任公司 | Shaftless screw conveying device |
| CN109777521A (en) * | 2019-03-21 | 2019-05-21 | 安徽科达洁能股份有限公司 | A kind of gasification system and gasification process |
| CN109926553A (en) * | 2017-12-19 | 2019-06-25 | 宝钢工程技术集团有限公司 | Hang on the crystallizer automatic covering slag feeding device of tundish bottom |
| CN111331091A (en) * | 2020-04-09 | 2020-06-26 | 安徽工业大学 | Automatic adding device of metallurgical exothermic agent for continuous casting tailing blank |
| CN113814364A (en) * | 2021-08-24 | 2021-12-21 | 南京钢铁股份有限公司 | Crystallizer casting powder uniform injection adding device and application method |
-
2009
- 2009-04-09 CN CN2009101035596A patent/CN101559479B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756104A (en) * | 2012-07-20 | 2012-10-31 | 清华大学 | Automatic protective slag feeding device for plate blank crystallizer |
| CN102756104B (en) * | 2012-07-20 | 2014-06-18 | 清华大学 | Automatic protective slag feeding device for plate blank crystallizer |
| CN103008589A (en) * | 2012-12-14 | 2013-04-03 | 济钢集团有限公司 | Feeding device capable of baking covering slags by utilizing waste heat of tundish |
| CN109926553A (en) * | 2017-12-19 | 2019-06-25 | 宝钢工程技术集团有限公司 | Hang on the crystallizer automatic covering slag feeding device of tundish bottom |
| CN108404442A (en) * | 2018-05-04 | 2018-08-17 | 上海东富龙科技股份有限公司 | A kind of continuous automatic feeding device of online single tube |
| CN108404442B (en) * | 2018-05-04 | 2023-08-08 | 东富龙科技集团股份有限公司 | Online single-tube continuous automatic feeding device |
| CN109399095A (en) * | 2018-11-15 | 2019-03-01 | 北京城建集团有限责任公司 | Shaftless screw conveying device |
| CN109777521A (en) * | 2019-03-21 | 2019-05-21 | 安徽科达洁能股份有限公司 | A kind of gasification system and gasification process |
| CN109777521B (en) * | 2019-03-21 | 2024-03-05 | 安徽科达洁能股份有限公司 | Coal gasification system and gasification process |
| CN111331091A (en) * | 2020-04-09 | 2020-06-26 | 安徽工业大学 | Automatic adding device of metallurgical exothermic agent for continuous casting tailing blank |
| CN113814364A (en) * | 2021-08-24 | 2021-12-21 | 南京钢铁股份有限公司 | Crystallizer casting powder uniform injection adding device and application method |
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|---|---|
| CN101559479B (en) | 2011-01-19 |
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