CN201908123U - Smokeless spheroidization device - Google Patents
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- CN201908123U CN201908123U CN2010205741905U CN201020574190U CN201908123U CN 201908123 U CN201908123 U CN 201908123U CN 2010205741905 U CN2010205741905 U CN 2010205741905U CN 201020574190 U CN201020574190 U CN 201020574190U CN 201908123 U CN201908123 U CN 201908123U
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Abstract
The utility model relates to a smokeless spheroidization device for producing nodular cast iron. A pressure regulating through hole and a pressure regulating seam are arranged at the middle part of one side surface of a rectangle or square steel tube, and founded rare earth ferrosilicon spheroidizing agent alloy liquid is infused into the steel tube for solidifying and cooling; a support bar pressure head is connected with a first bolt of a steering shaft on a pressure bar rotating by taking a third bolt and a nut that are arranged on a stand column or a positioning ruler as a rotation shaft, or an electromotor drives a hook head of hoisting equipment to overhang the support bar pressure head with a counter weight iron, therefore, rare earth ferrosilicon spheroidizing agent with the outer lining of the rectangle or square steel tube is fixed in a spheroidization bag by the support bar pressure head and is processed by flowing into the bag to control the spheroidization reaction time to be accurate, then the smokeless spheroidization is realized, the absorption rate of effective elements is high after reaction, the production environment in the process of producing and using the spheroidizing agent is improved, the production cost is reduced, and the product quality is improved.
Description
Technical field
The utility model is about a kind of smokeless nodulizing agent and spheroidization apparatus.More specifically say so to adopt and pour the employed smokeless spheroidization apparatus of Bao Neifa spheroidizing.
Background technology
In the enterprise that produces nodular iron casting, extensively adopt rare earth magnesium ferrosilicon alloy as nodulizing agent.The rare earth magnesium ferrosilicon alloy nodulizing agent is the present both at home and abroad nodulizing agent of consumption maximum, but in its traditional production process the energy consumption height, melting loss is big, environmental pollution is serious, traditional nodulizing agent is because the specific absorption of magnesium is low, its add-on is bigger.For a long time, technician both domestic and external has carried out unremitting effort research to the production technique that pours Bao Neifa spheriodization process thereof technology and rare earth ferrosilicomagnesium nodulizing agent.
At present, be that nodulizing agent adopts the production technique that pours the Bao Neifa spheroidizing with the rare earth ferrosilicomagnesium, when tapping temperature more than 1480 ℃, spheroidizing wraps under the red heat bag state of continuous use, and Mg content was at 〉=8% o'clock, and the spheroidizing reacion situation is aggravated with the rising of temperature, the intensive magnesium light occurs even cause molten iron to splash, the result is that the specific absorption of effective element Mg and RE reduces, and causes the molten iron later stage decline through spheroidizing, and nodulizing grade descends.Traditional terms of settlement is 1. to add a certain amount of SiCa alloy to improve and contain Ca and measure and alleviate its explosive reaction when the melting nodulizing agent, increases the SiCa alloy production cost is increased.2. the Mg content in the nodulizing agent is controlled at about 8% or≤8% alleviate reaction.3. in the rare earth ferrosilicomagnesium nodulizing agent drops into the dykes and dams of hot metal ladle, cover pig scrap thereon and beat real, also have in bag, add dead head, the reduction of bushel iron piece wrap in the molten iron temperature of reaction.4. after in bag, dropping into nodulizing agent and breeding ferrosilicon, cover the poly-slag agent of perlite thereon or cover iron plate thereon.Though above-mentioned measure produces effect to the violent situation of control magnesium alloy reaction, but reaction finishes, and the molten iron cooling is bigger, and the molten iron surface scum is many, the stability of spheroidizing reacion is subjected to the influence of molten iron temperature and changes, and the specific absorption fluctuation range of effective element Mg, RE and Si is big; For the base iron sulphur content of high temperature liquid iron before nodularization of cupola melting when higher, only take to improve the add-on of nodulizing agent and increase the content of RE and Ca in the nodulizing agent, and at present under the pyroprocessing situation with nodulizing agent in the content of Mg to increase be very limited again.
I have applied for that Chinese invention patent publication number CN101029367A name is called two patent applications that " spheroidization apparatus and spheriodization process thereof " and publication number CN101509084A name are called " production method of nodulizing agent ", solved and reacted violent when pouring the Bao Neifa spheroidizing, the problem that the effective element specific absorption is low, also solved the rare earth ferrosilicomagnesium nodulizing agent and in the process of founding, reacted violent, scaling loss is bigger, the problem of inoculant alloy component segregation, the improved problem of still needing: adopt spheroidization apparatus to carry out spheroidizing, need utilize the structure of dam-type spheroidizing bag, in order all to put into rare earth ferrosilicomagnesium nodulizing agent and nucleating agent in the dykes and dams, dykes and dams must have enough height, the dykes and dams height of the 1000kg nodularization bag of for example newly building by laying reaches 23cm, the increase of dykes and dams height improves the bursting point position of nodulizing agent fusing boiling reaction, is unfavorable for the absorption of effective element and the purification of molten iron.The time of control spheroidizing reacion needs the situation of pack processing according to the observation to control the position of pole pressure head, and it is longer to accomplish not have the smokeless spheroidizing required time of magnesium light.Dykes and dams in the bag are dross, damage easily after spheroidizing, and these problems occurring will influence the stable of spheroidizing quality, also increase the workload of repairing hot metal ladle simultaneously.
Summary of the invention
The purpose of this utility model provides a kind of smokeless spheroidization apparatus, the problem that reaction is violent, the effective element specific absorption is low when pouring the Bao Neifa spheroidizing to solve in the spheroidizing process, accurately control the spheroidizing reacion time, improve the quality of products, reduce production costs, give full play to and utilize resource, significantly improve the production environment of nodulizing agent making processes and use.
For achieving the above object, the technique means that the utility model adopted is: a kind of smokeless spheroidization apparatus that is used to produce spheroidal graphite cast iron comprises: pole pressure head 1, steering shaft 2 moves up and down location 3, presses thick stick 4, balance iron 5, column and Position Scale 6, nodularization bag 7, first bolt, 8, the first bolts and nut 10, the second bolts 9, second bolt and nut 11, the 3rd bolt and nut 12, the rectangle of outer lining or rectangular steel tube 13, whole rare earth ferrosilicomagnesium nodulizing agent 14; It is characterized in that: on the middle part, a side of rectangle or rectangular steel tube 13, offer pressure regulation through hole 17 or pressure regulation seam 19, be built-in with whole rare earth ferrosilicomagnesium nodulizing agent 14 at the rectangle or the rectangular steel tube 13 that are provided with pressure regulation through hole 17 or pressure regulation seam 19, the part at rectangle or rectangular steel tube 13 both ends open places is welded shutoff by steel plate; Pressing thick stick 4 can be the rotating shaft rotation with the 3rd bolt on column and the Position Scale 6 and nut 12, presses first bolt 8 of the steering shaft 2 on the thick stick 4 to connect pole pressure head 1; The removable position of pole pressure head (1) also can be fixed in the desired position, and the pressure head bottom surface of its pole pressure head 1 is a plane, and pole pressure head 1 outer lining refractories partly is the skeleton with Deformed Steel Bars, iron wire weldering system; Column in column and the Position Scale 6 and Position Scale are an integral body that is welded into, and are provided with in the end of Position Scale to move up and down location 3, are hung with balance iron 5 at the other end of pressing thick stick 4.
Described outer lining is a rectangular steel pipe 13, and pressure regulation through hole 17 or pressure regulation seam 19 are opened in the end face middle part of described rectangular steel pipe 13 at small area.
Described whole rare earth ferrosilicomagnesium nodulizing agent 14 adopts the ferro-silicon single stage method of mine heat furnace smelting to produce or electric furnace secondary remelting method is produced, and directly is poured in rectangle or the rectangular steel tube 13.
Outer lining rectangle or rectangular steel tube 13 can be cast iron quality, adopt the castmethod manufacturing.
The steel plate that outer lining rectangle or rectangular steel tube 13 opening part shutoff steel plates adopt same steel pipe (13) wall thickness to equate, and the two used material is straight carbon steel and there is no coating.
Pressure regulation through hole 17 diameters of offering on outer lining rectangle or rectangular steel tube 13 are 8～14mm.
The wavelength width of a slit of the pressure regulation seam of offering on outer lining rectangle or rectangular steel tube 13 19 is 2～4mm.
The mode that also can adopt gib head (16) suspention of motor drive driving motion weight handling equipment to have the pole pressure head 1 of balance weight iron 15 is replaced and is pressed thick stick 4 and press first bolt 8 of the steering shaft 2 on the thick stick 4 to connect pole pressure heads 1.
When after spheroidizing, needing to add nodulizing agent, employing is that first bolt 8 of the steering shaft 2 on the pressure thick stick 4 of rotating shaft rotation connects the mode of pole pressure heads 1 or adopts gib head 16 suspentions of motor drive driving motion weight handling equipment to have the mode of the pole pressure head 1 of balance weight iron 15 with the 3rd bolt on column and the Position Scale 6 and nut 12, the whole rare earth ferrosilicomagnesium nodulizing agent 18 of the outer lining rectangle of required additional amount or rectangular steel tube is bound up on the bottom surface of pole pressure head 1 with iron wire and iron sheet, be pressed in the molten iron, replenish required effective element magnesium.
In a word, utilize rectangle or rectangular steel tube 13 on middle part, one side, to offer several pressure regulation through holes 17 or pressure regulation seam 19, should offer pressure regulation through hole 17 or pressure regulation seam 19 at the end face middle part of small area for rectangular steel pipe, contain Mg≤20% with what melt, containing Si≤65% is injected in the rectangle or rectangular steel tube 13 that offers pressure regulation through hole 17 or pressure regulation seam 19 with the rare earth ferrosilicomagnesium inoculant alloy liquid that contains RE≤3%, after treating that it solidifies cooling, just having obtained to have with rectangle or rectangular steel tube 13 is outer lining, the block nodulizing agent of both ends open, for further controlling the speed of response of tubing endosphere agent, the steel plate that employing equates with thickness of steel pipe is with the mode shutoff rectangle of welding or the part of rectangular steel tube 13 both ends opens, to reduce the contact surface of high temperature liquid iron, the reaction times and the response behaviour of control nodulizing agent with block nodulizing agent; The spheroidization apparatus that adopts publication number CN101029367A name to be called " spheroidization apparatus and spheriodization process thereof " is provided with removable position in the spheroidizing bag also can be at the pole pressure head 1 of required stationkeeping, the pressure head bottom surface of pole pressure head 1 is a plane, pole pressure head 1 outer lining refractories partly is with Deformed Steel Bars, the skeleton of iron wire weldering system, impact when pole pressure head 1 can stand the nodulizing agent fusing boiling vigorous reaction of the repeated stock of high temperature liquid iron and magnesium content≤20%, column in column and the Position Scale 6 and Position Scale are an integral body that is welded into, be provided with in the end of Position Scale and move up and down location 3, be hung with balance iron 5 at the other end of pressing thick stick 4.The nodulizing agent of outer lining rectangle or rectangular steel tube 13 is closely knit rectangular parallelepipeds, its volume is less, the bursting point position of whole rare earth ferrosilicomagnesium nodulizing agent 14 fusing boiling reactions is lower, and the spheroidizing reacion that carries out of along continuous straight runs, helps the absorption of effective element and the purification of molten iron.The spheroidizing bag can be built by laying into flat nodularization bag or the lower dam-type nodularization bag of dykes and dams, for flat nodularization bag, as Fig. 1, Fig. 2 and shown in Figure 3, place in nodularization bag centre near the whole rare earth ferrosilicomagnesium nodulizing agent 18 of outer lining rectangle or rectangular steel tube being offered the one side of pressure regulation through hole 17, the whole rare earth ferrosilicomagnesium nodulizing agent 18 that pole pressure head 1 is pressed in outer lining rectangle or rectangular steel tube is top fixing, throws in the ferrosilicon nucleating agent near a side of bag wall.For the lower nodularization bag of dykes and dams, as shown in Figure 4 and Figure 5, the whole rare earth ferrosilicomagnesium nodulizing agent 18 of outer lining rectangle or rectangular steel tube is offered nodularization bag bag wall near the one side of pressure regulation through hole 17, the other end is close to dykes and dams and is placed, the whole rare earth ferrosilicomagnesium nodulizing agent 18 that pole pressure head 1 is pressed in outer lining rectangle or rectangular steel tube is top fixing, throws in the ferrosilicon nucleating agent at the two ends and the close bag wall place of reaction mouth.Stitched 19 o'clock not offering pressure regulation through hole 17 or pressure regulation, after molten iron pours the nodularization bag, the nodulizing agent that is positioned at the whole rare earth ferrosilicomagnesium nodulizing agent 18 two-port places of outer lining rectangle or rectangular steel tube begins to melt boiling reaction earlier with after the high temperature liquid iron contact, subsequently the fusing the nodulizing agent boiling reaction time, because the lengthening of the degree of depth, the pressure of boiling reaction strengthens thereupon, and frequency is slack-off, the aggravation of molten iron boiling situation; As Fig. 3 and shown in Figure 6, after offering pressure regulation through hole 17 or pressure regulation seam 19, nodulizing agent fusing boiling reaction can be ejected by pressure regulation through hole 17 or pressure regulation seam 19, shortened the approach of nodulizing agent fusing boiling reaction, pressure is reduced, reaction condition tends towards stability.Learn by experiment, when being 8～14mm, pressure regulation through hole 17 diameters all can obtain the ideal effect, the wavelength width of a slit of pressure regulation seam 19 should be advisable at 2～4mm, when the processing molten iron temperature is higher, the port area of pressure regulation through hole 17 or pressure regulation seam 19 should be less, when the processing molten iron temperature was low, its port area should be bigger.
It is that mode that first bolt 8 of the steering shaft 2 on the pressure thick stick 4 of rotating shaft rotation connects pole pressure heads 1 is placed on pole pressure head 1 above the whole rare earth ferrosilicomagnesium nodulizing agent 18 of outer lining rectangular steel pipe and fixing that above-mentioned pole pressure head 1 can adopt with the 3rd bolt on column and the Position Scale 6 and nut 12; Also can adopt the gib head 16 of motor drive driving motion weight handling equipment to suspend pole pressure head 1 in midair with balance weight iron 15, this pole pressure head 1 be above-mentioned be that first bolt 8 of the steering shaft 2 on the pressure thick stick 4 of rotating shaft rotation connects on the basis of pole pressure heads 1 with the 3rd bolt on the column and nut 12, on its pole pressure head 1, increased balance weight iron 15, pole pressure head 1 is placed on above the whole rare earth ferrosilicomagnesium nodulizing agent 18 of outer lining rectangular steel pipe, after treating that spheroidizing reacion finishes, pole pressure head 1 is left the nodularization bag.Because rectangle or rectangular steel tube 13 outward appearances rule are neat, to adopt the rare earth ferrosilicomagnesium inoculant alloy liquid that the ferro-silicon single stage method is produced or electric furnace secondary remelting method is produced of mine heat furnace smelting to be poured into wherein after the assembled arrangement up its opening, reason owing to rectangle or rectangular steel tube 13, quickened the cooled and solidified of inoculant alloy liquid, reduced the chemical ingredients segregation of nodulizing agent, the whole inoculant alloy of outer lining rectangle or rectangular steel tube 13 does not need fragmentation and screening, is convenient to carrying and piles up.
Its spheroidizing step is as follows:
A, will be on request after the whole rare earth ferrosilicomagnesium nodulizing agent 18 of outer lining rectangle or rectangular steel tube puts into spheroidizing bag 7 and arrive predetermined positions, removable pole pressure head 1 pressed thereon and fix;
B, in nodularization bag 7, drop into the ferrosilicon nucleating agent;
C, molten iron pour nodularization bag 7 and carry out spheroidizing reacion;
After d, spheroidizing reacion finish, pole pressure head 1 is left nodularization bag 7.
The beneficial effects of the utility model: solved the problem that reaction is violent when pouring the Bao Neifa spheroidizing, the effective element specific absorption is low, the molten iron cooling is few, has realized the smokeless spheroidizing of no magnesium light.Can accurately control the spheroidizing reacion time, under the situation of＜30 ℃ of the molten iron temperature fluctuations of pouring, the spheroidizing reacion time is gone up lower variation of tolerance less than 5 seconds.With traditional Mg8% that contains, containing RE5% is outer lining with rectangle or rectangular steel tube 13 together with the nodulizing agent that contains Si41%, the built-in Mg15% that contains, containing RE1% compares with the whole nodulizing agent that contains Si54%, promptly adopt the outer lining rectangle of single stage method production or electric furnace secondary remelting method production or the whole rare earth ferrosilicomagnesium nodulizing agent 18 of rectangular steel tube to contrast with traditional rare earth ferrosilicomagnesium nodulizing agent, its products production cost can reduce by 14%～18%, contains outer lining rectangle or rectangular steel tube and can reduce by 10～15% than traditional nodulizing agent in interior whole rare earth ferrosilicomagnesium nodulizing agent 18 adding weight when spheroidizing; When after spheroidizing, needing to add nodulizing agent, employing is that first bolt 8 of the steering shaft 2 on the pressure thick stick 4 of rotating shaft rotation connects the mode of pole pressure heads 1 or adopts gib head 16 suspentions of motor drive driving motion weight handling equipment to have the mode of the pole pressure head 1 of balance weight iron 15 with the 3rd bolt on column and the Position Scale 6 and nut 12, the whole rare earth ferrosilicomagnesium nodulizing agent 18 of the outer lining rectangle of required additional amount or rectangular steel tube is bound up on the bottom surface of pole pressure head 1 with iron wire and iron sheet, be pressed in the molten iron, replenish required effective element magnesium; Improved the production environment of nodulizing agent making processes and use.Being called " spheroidization apparatus and spheriodization process thereof " with immediate Chinese invention patent publication number CN101029367A name compares, under the condition of identical rare earth ferrosilicomagnesium nodulizing agent chemical ingredients and identical spheroidization treatment temperature, the spheroidizing reacion time of whole rare earth ferrosilicomagnesium nodulizing agent 18 that is equipped with outer lining rectangle or rectangular steel tube is more accurate, shortened the time of smokeless spheroidizing reacion, the specific absorption height of effective element Mg, RE and Si, when magnesium content needs on the low side are added after spheroidizing, can in time add.
Description of drawings:
Fig. 1 be will have the whole rare earth ferrosilicomagnesium nodulizing agent 18 of outer lining rectangular steel pipe cooperate that to adopt with the 3rd bolt on column and the Position Scale 6 and nut 12 be that the mode of first bolt, the 8 connection pole pressure heads 1 of the steering shaft 2 on the pressure thick stick 4 of rotating shaft rotation is placed on the sectional view in the plain base nodularization bag 7.
Fig. 2 drops into the vertical view that has the whole rare earth Mg-Si nodularizer 18 of outer lining rectangle or rectangular steel tube and be pressed into pole pressure head 1 in plain base nodularization bag 7.
Fig. 3 drops into the sectional view that has the whole rare earth Mg-Si nodularizer 18 of outer lining rectangle or rectangular steel tube and be pressed into pole pressure head 1 in plain base nodularization bag 7.
Fig. 4 drops into the vertical view that has the whole rare earth Mg-Si nodularizer 18 of outer lining rectangle or rectangular steel tube and be pressed into pole pressure head 1 in dam-type nodularization bag 7.
Fig. 5 be will have the whole rare earth ferrosilicomagnesium nodulizing agent 18 of the outer lining rectangular steel pipe mode that cooperates gib head 16 suspentions of adopting the motor drive driving motion weight handling equipments to have the pole pressure head 1 of balance weight iron 15 be placed on sectional view in the dam-type nodularization bag 7.
Fig. 6, be the view that offers the whole rare earth ferrosilicomagnesium nodulizing agent 18 of the outer lining rectangle of pressure regulation seam 19 or rectangular steel tube.
Description of reference numerals: 1 is the pole pressure head, 2 is steering shaft, 3 for moving up and down the location, and 4 for pressing thick stick, and 5 is balance iron, 6 is column and Position Scale, 7 are the nodularization bag, and 8 is first bolt, and 9 is second bolt, 10 is first bolt and nut, 11 is second bolt and nut, and 12 is the 3rd bolt and nut, and 13 is the rectangle or the rectangular steel tube of outer lining, 14 is whole rare earth ferrosilicomagnesium nodulizing agent, 15 is balance weight iron, and 16 is the gib head of weight handling equipment, and 17 are the pressure regulation through hole, 18 is the whole rare earth ferrosilicomagnesium nodulizing agent of outer lining rectangle or rectangular steel tube, and 19 is the pressure regulation seam of offering on outer lining rectangle or rectangular steel tube.
Embodiment:
In conjunction with the accompanying drawings enforcement of the present utility model is further described: on the middle part, a side of rectangle or rectangular steel tube 13, offer pressure regulation through hole 17 or pressure regulation seam 19, be built-in with whole rare earth ferrosilicomagnesium nodulizing agent 14 at the rectangle or the rectangular steel tube 13 that are provided with pressure regulation through hole 17 or pressure regulation seam 19, the part at rectangle or rectangular steel tube 13 both ends open places is welded shutoff by steel plate; Pressing thick stick 4 can be the rotating shaft rotation with the 3rd bolt on column and the Position Scale 6 and nut 12, presses first bolt 8 of the steering shaft 2 on the thick stick 4 to connect pole pressure head 1; The removable position of pole pressure head (1) also can be fixed in the desired position, and the pressure head bottom surface of its pole pressure head 1 is a plane, and pole pressure head 1 outer lining refractories partly is the skeleton with Deformed Steel Bars, iron wire weldering system; Column in column and the Position Scale 6 and Position Scale are an integral body that is welded into, and are provided with in the end of Position Scale to move up and down location 3, are hung with balance iron 5 at the other end of pressing thick stick 4.The reaction condition and the reaction times of the rectangle of whole rare earth ferrosilicomagnesium nodulizing agent 14 outer linings or 13 pairs of control of rectangular steel tube magnesium-rare earth have been played keying action; When adopting dam-type nodularization bag to carry out spheroidizing, because at the bottom of the dykes and dams nodularization bag bag, three the fire proofed wood charge levels in the bottom surface of dykes and dams and pole pressure head 1 are with its tight encirclement, another face has the covering of ferrosilicon nucleating agent, delayed the burn-off rate of outer lining rectangle or rectangular steel tube 13, therefore, the wall thickness of outer lining rectangle or rectangular steel tube 13 is chosen in the needs that 2～4mm just can satisfy spheroidizing, for spheroidization treatment temperature greater than 1480 ℃, the spheroidizing reacion time is when longer, when adopting plain base nodularization bag, select the wall thickness of higher limit, in case of necessity can be in the outside of outer lining rectangle or rectangular steel tube 13, the brushing refractory paint delays its fusing except two reactive end actinal surfaces.The material that above-mentioned used outer lining rectangle or rectangular steel tube 13 also can be selected cast iron for use adopts the method manufacturing of casting.Learn that by experiment too short for preventing the spheroidizing time, reaction is too fierce, the height that whole rare earth ferrosilicomagnesium nodulizing agent 14 is placed in the spheroidizing bag is advisable with＜10cm, when surpassing 10cm, should select the structure of rectangular steel pipe for use, the size of rectangular steel pipe facet is answered≤10cm.The steel plate that above-mentioned used outer lining rectangle or rectangular steel tube 13 and adopting equates with thickness of steel pipe is straight carbon steel with the used material of a part of the mode shutoff rectangle of welding or rectangular steel tube 13 both ends opens and there is no coating.
Under the cold blast cupola melting condition, carry out, melting rate is 2 tons/hour, adopting the whole rare earth ferrosilicomagnesium nodulizing agent with outer lining rectangular steel pipe 18 shown in the accompanying drawing 1 to cooperate to adopt with the 3rd bolt on column and the Position Scale 6 and nut 12 be that the mode of first bolt, the 8 connection pole pressure heads 1 of the steering shaft 2 on the pressure thick stick 4 of rotating shaft rotation is placed in the dam-type nodularization bag 7, it is 500kg that every bag is handled weight of molten iron, red heat bag continuous operation uses, the iron notch molten iron temperature is 1480 ℃, base iron sulphur content 0.062%, the whole rare earth ferrosilicomagnesium nodulizing agent 14 that does not comprise outer lining rectangular steel pipe 13 contains Mg16%, contain RE2% and contain Si54%, its weight that drops into whole rare earth ferrosilicomagnesium nodulizing agent 14 accounts for 1.05% of processed weight of molten iron, add 0.4% in the 72SiFe nucleating agent bag, secondary silicon barium breeds and adds 0.15%, do not cover iron filings and perlite, 80 seconds spheroidizing reacion time, be no magnesium light molten iron boiling reaction, spheroidizing reacion finishes sampling in back 8 minutes 30 seconds, 2 grades of nodulizing grades.
When under the electrosmelting of intermediate frequency condition, carrying out, adopting the whole rare earth ferrosilicomagnesium nodulizing agent with outer lining rectangular steel pipe 18 shown in the accompanying drawing 3 to cooperate to adopt with the 3rd bolt on column and the Position Scale 6 and nut 12 be that the mode of first bolt, the 8 connection pole pressure heads 1 of the steering shaft 2 on the pressure thick stick 4 of rotating shaft rotation is placed in the plain base nodularization bag 7, it is 1000kg that every bag is handled weight of molten iron, it is 1530 ℃ that electric furnace goes out molten iron temperature, base iron sulphur content 0.028%, whole rare earth ferrosilicomagnesium nodulizing agent 14 contains Mg15%, contain RE1% and contain Si54%, its weight that drops into whole rare earth ferrosilicomagnesium nodulizing agent 14 accounts for 1.0% of processed weight of molten iron, add 0.4% in the 72SiFe nucleating agent bag, secondary silicon barium breeds and adds 0.2%, do not covering under iron filings and the perlitic situation, the spheroidizing reacion time was at 1 minute and 56 seconds, be no magnesium light molten iron boiling reaction, spheroidizing reacion finishes sampling in back 12 minutes, 2 grades of nodulizing grades.
Claims (8)
1. a smokeless spheroidization apparatus that is used to produce spheroidal graphite cast iron comprises: pole pressure head (1), steering shaft (2), move up and down location (3), press thick stick (4), balance iron (5), column and Position Scale (6), nodularization bag (7), first bolt (8), first bolt and nut (10), second bolt (9), second bolt and nut (11), the 3rd bolt and nut (12), the rectangle of outer lining or rectangular steel tube (13), whole rare earth ferrosilicomagnesium nodulizing agent (14); It is characterized in that: on the middle part, a side of rectangle or rectangular steel tube (13), offer pressure regulation through hole (17) or pressure regulation seam (19), be built-in with whole rare earth ferrosilicomagnesium nodulizing agent (14) at the rectangle or the rectangular steel tube (13) that are provided with pressure regulation through hole (17) or pressure regulation seam (19), the part at rectangle or rectangular steel tube (13) both ends open place is welded shutoff by steel plate; Pressing thick stick (4) can be the rotating shaft rotation with column and last the 3rd bolt of Position Scale (6) and nut (12), first bolt (8) the connection pole pressure head (1) of the steering shaft (2) on the pressure thick stick (4); The removable position of pole pressure head (1) also can be fixed in the desired position, and the pressure head bottom surface of its pole pressure head (1) is a plane, and the outer lining refractories of pole pressure head (1) partly is the skeleton with Deformed Steel Bars, iron wire weldering system; Column in column and the Position Scale (6) and Position Scale are an integral body that is welded into, and are provided with in the end of Position Scale to move up and down location (3), are hung with balance iron (5) at the other end of pressing thick stick (4).
2. spheroidization apparatus according to claim 1 is characterized in that, described outer lining is rectangular steel pipe (13), and pressure regulation through hole (17) or pressure regulation seam (19) are opened in the end face middle part of described rectangular steel pipe (13) at small area.
3. spheroidization apparatus according to claim 1 is characterized in that described rare earth ferrosilicomagnesium nodulizing agent (14) adopts the ferro-silicon single stage method of mine heat furnace smelting to produce or electric furnace secondary remelting method is produced, and directly is poured in rectangle or the rectangular steel tube (13).
4. spheroidization apparatus according to claim 1 is characterized in that outer lining rectangle or rectangular steel tube (13) can be cast iron quality, adopts the castmethod manufacturing.
5. spheroidization apparatus according to claim 1 is characterized in that the steel plate that outer lining rectangle or rectangular steel tube (13) opening part shutoff steel plate adopts same steel pipe (13) wall thickness to equate, and the two used material is straight carbon steel and there is no coating.
6. spheroidization apparatus according to claim 1 is characterized in that pressure regulation through hole (17) diameter of offering is 8～14mm on outer lining rectangle or rectangular steel tube (13).
7. spheroidization apparatus according to claim 1 is characterized in that it is 2～4mm that the wavelength width of a slit of (19) is stitched in the pressure regulation of offering on outer lining rectangle or rectangular steel tube (13).
8. spheroidization apparatus according to claim 1 is characterized in that replacing first bolt (8) of pressing thick stick (4) and pressing the steering shaft (2) on the thick stick (4) in the mode that gib head (16) suspention of adopting the motor drive driving motion weight handling equipment has a pole pressure head (1) of balance weight iron (15) connects pole pressure head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205741905U CN201908123U (en) | 2010-10-25 | 2010-10-25 | Smokeless spheroidization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205741905U CN201908123U (en) | 2010-10-25 | 2010-10-25 | Smokeless spheroidization device |
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| CN201908123U true CN201908123U (en) | 2011-07-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012106837A1 (en) * | 2010-10-25 | 2012-08-16 | 天津市万路科技有限公司 | Smokeless spheroidization processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012106837A1 (en) * | 2010-10-25 | 2012-08-16 | 天津市万路科技有限公司 | Smokeless spheroidization processing method |
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Assignee: Tangshan Weihao Magnesium Powder Co. Ltd. Assignor: Liu Nianlu Contract record no.: 2011120000188 Denomination of utility model: Smokeless spheroidization device Granted publication date: 20110727 License type: Common License Record date: 20110922 |
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