CN116422845A - Production device and technology of spheroidal graphite cast iron for wind power castings - Google Patents

Abstract

The invention discloses a production device and a production process of spheroidal graphite cast iron for wind power castings, and belongs to the technical field of metal smelting. The invention can quickly clean the scum on the surface of the molten iron, has simple structure, high stability and convenient later maintenance; the iron liquid can be drained after the fishing is finished, and then the scum is automatically discharged, so that the iron liquid is not wasted, and personnel are not burned; the smoke generated in the operation process can be absorbed, so that the surrounding environment is prevented from being polluted, and the human body is injured; the inoculant and the nodulizer which are put into the mixer can be uniformly scattered, and the mixing of the inoculant and the nodulizer can be more uniform and quicker by the stirring paddle.

Description

Production device and technology of spheroidal graphite cast iron for wind power castings

Technical Field

The invention relates to the technical field of metal smelting, in particular to a production device and a production process of spheroidal graphite cast iron for wind power castings.

Background

The ductile cast iron is a material which not only maintains the advantages of gray cast iron, but also has the flexibility and strength of steel, well solves the problem which cannot be solved by gray cast iron and steel, and is widely applied to the mechanical industry and other industries. The spheroidal graphite cast iron is cast iron with most or all graphite in spheroidal form after the inoculation and spheroidization of molten iron. The preparation of the iron liquid comprises the steps of putting raw materials into a spheroidizing bag for fusion, then sequentially putting inoculant and spheroidizing agent for inoculation and spheroidization, finally forming ductile iron liquid, casting the iron liquid into a die, and waiting for cooling and forming of the iron liquid.

The Chinese patent of the invention with the publication number of CN114908283A in the prior art provides a preparation method of spheroidal graphite cast iron, which has the advantages that: the device can salvage the slag that floats in the mixed molten iron, reduces personnel intensity of labour, but its not enough lies in: when the device is used for cleaning scum, the cleaning effect is poor, meanwhile, the connection relation between all the arranged workpieces is too complex, a simple function is realized by using a more complex structure, and the requirements on a power rope and a connecting rope are higher (extremely high temperature resistance is required and the connecting rope is required to be soft enough), so that the device is not beneficial to later maintenance; on the other hand, when the device is needed to transfer the scum after the scum is salvaged, the scum is dumped, and in the process, molten iron drops on the salvaging mechanism, so that waste is caused, and workers are easy to burn.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: the cleaning effect is not good when salvaging the dross, and the salvaging process is loaded down with trivial details, and later maintenance is inconvenient.

Aiming at the technical problems, the invention adopts the following technical scheme: the utility model provides a production device of nodular cast iron for wind-powered electricity generation foundry goods, includes the base, fixed connection support roof beam on the base, rotate on the support roof beam and connect and empty the circle, empty and to empty the circle fixed connection and empty the motor, empty motor and support roof beam fixed connection, empty and to go up fixed connection intermediate frequency furnace, be provided with the foundry goods mould on the base, the base on fixed connection dross collection box, support roof beam on two fixed connection cylinders I, be provided with the dross subassembly on the cylinder I, the dross subassembly of salvaging on be provided with supplementary subassembly of salvaging, supplementary subassembly of salvaging on be provided with the stirring subassembly; the auxiliary salvaging component is used for assisting the scum salvaging component to collect scum, discharging scum and driving the stirring component, and the stirring component is used for stirring the molten iron and accelerating the mixing of inoculant, nodulizer and the molten iron; the scum salvaging assembly is provided with an isolation cover bracket, the isolation cover bracket is fixedly connected with the air cylinder I, the isolation cover bracket is fixedly connected with an isolation cover, the isolation cover is fixedly connected with a salvaging plate, the salvaging plate is fixedly connected with a driving plate, and the salvaging plate is in a cone shape; the auxiliary salvaging assembly is characterized in that a feeding pipe is arranged on the auxiliary salvaging assembly and is movably connected with the isolation cover, an inverted cone rotating block is fixedly connected to the feeding pipe, an auxiliary pushing plate and a discharging scraping plate are fixedly connected to the inverted cone rotating block, the auxiliary pushing plate and the discharging scraping plate are fixedly connected to the inverted cone rotating block, a rotating shaft is connected to the inverted cone rotating block in a rotating mode, the auxiliary scraping plate is fixedly connected to the rotating shaft, an annular groove is formed in the inverted cone rotating block, the depth of the annular groove is identical to the height of a driving plate, the driving plate is in intermittent fit with the auxiliary scraping plate, and the driving plate is in intermittent fit with the annular groove.

Preferably, the fishing plate is provided with a plurality of filtering holes in an array manner, the driving plate is provided with a plurality of square holes in a circumferential array manner, and the area of each square hole is larger than that of each filtering hole.

Preferably, the isolation cover bracket is fixedly connected with a driving motor, the driving motor is fixedly connected with a gear II, the isolation cover bracket is rotationally connected with a gear I, the gear I is always meshed with the gear II, and the gear I is in sliding connection with the feeding pipe; the feeding pipe on fixed connection charging box, the charging box comprises two cabins, is provided with the solenoid valve on two cabins respectively, the charging box on rotate and connect cylinder II, cylinder II fixed connection is on cylinder I.

Preferably, the reverse taper rotating block is provided with a through hole on the axis, the through hole is communicated with the feeding pipe, the diameter of the through hole is the same as the inner diameter of the feeding pipe, one end of the through hole, far away from the feeding pipe, is provided with a plurality of sliding grooves, and the reverse taper rotating block is provided with a plurality of matching grooves.

Preferably, the sliding chute is connected with the connecting rod in a sliding way, the connecting rod is fixedly connected to the material homogenizing block, the material homogenizing block is conical, and the maximum radius of the conical shape is larger than the radius of the through hole on the inverted cone rotating block.

Preferably, the stirring shaft is fixedly connected with a telescopic rod, the telescopic rod is fixedly connected with a plurality of stirring paddles, and two adjacent stirring paddles are connected through a spring.

Preferably, the isolating cover is rotationally connected with the discharging plate, the discharging plate is fixedly connected with the torsion spring, the other end of the torsion spring is fixedly connected with the isolating cover, one side of the scum collecting box, which is close to the isolating cover, is an arc surface, the circle center of the arc coincides with the circle center of the isolating cover, and the discharging plate is in intermittent fit with the scum collecting box.

Preferably, the isolation cover is provided with an air outlet, the isolation cover is fixedly connected with a purifier, and the purifier is communicated with the air outlet.

A production process of spheroidal graphite cast iron for wind power castings comprises the following steps:

s1, selecting raw materials, adding a furnace return material, pig iron, silicon carbide and common carbon scrap steel as main furnace materials into an intermediate frequency furnace, and completely melting the main furnace materials;

s2, salvaging scum on the surface layer of the molten iron;

s3, adding an inoculant for inoculation, and then adding a nodulizer for nodulizing;

s4, pouring the prepared molten iron into a casting mold, and cooling and forming the molten iron.

Compared with the prior art, the invention has the beneficial effects that: (1) According to the production device and the production process of the spheroidal graphite cast iron for the wind power castings, provided by the invention, the scum on the surface of the molten iron can be quickly cleaned by arranging the isolation cover, the salvaging plate and the inverted cone rotating block, so that the structure is simple, the stability is high, and the later maintenance is convenient; (2) According to the production device and the production process of the spheroidal graphite cast iron for the wind power castings, provided by the invention, the driving plate, the auxiliary scraping plate and the auxiliary pushing plate are arranged, so that part of the clamped scum can be stirred to help the scum to float upwards, and the auxiliary pushing plate is used for helping the scum to be salvaged smoothly, and the cleaning effect is improved; (3) According to the production device and the production process of the spheroidal graphite cast iron for the wind power castings, through the arrangement of the scum collecting box, the discharging plate and the discharging scraping plate, molten iron can be drained after salvaging is completed, and scum is automatically discharged, so that molten iron is not wasted, and personnel are not burned; (4) According to the production device and the production process of the spheroidal graphite cast iron for the wind power castings, the isolation cover is arranged, so that molten iron cannot splash out due to the protection of the isolation cover when inoculant and nodulizer are added, and personnel are prevented from being burnt; (5) According to the production device and the production process of the spheroidal graphite cast iron for the wind power castings, provided by the invention, the exhaust gas generated in the operation process can be absorbed by arranging the isolation cover and the purifier, so that the pollution to the surrounding environment and the harm to human bodies are prevented; (6) According to the production device and the production process of the spheroidal graphite cast iron for the wind power castings, the isolation cover and the purifier are arranged, and when the feeding pipe is blocked, negative pressure is formed in the isolation cover due to the suction force of the purifier, so that the dredging of the feeding pipe can be facilitated; (7) According to the production device and the production process of the spheroidal graphite cast iron for the wind power casting, provided by the invention, the added inoculant and the nodulizer can be uniformly scattered by arranging the uniform material blocks and the stirring paddles, and meanwhile, the stirring paddles can be used for uniformly and rapidly mixing the inoculant and the nodulizer; (8) According to the production device and the production process of the spheroidal graphite cast iron for the wind power castings, through the arrangement of the material homogenizing block, the spring and the telescopic rod, iron liquid is not adhered to the through holes of the material homogenizing block and the inverted cone rotating block, inoculant and nodulizer are prevented from adhering to the through holes, and feeding and refining effects are improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention.

Fig. 2 is a front angular cross-sectional view of the overall structure of the present invention.

FIG. 3 is a left view angle of the overall structure of the present invention.

Fig. 4 is a schematic view of a partial structure of the present invention.

FIG. 5 is a schematic diagram of an isolation cover and purifier.

Fig. 6 is a schematic view of a discharge plate structure.

FIG. 7 is a schematic view of the structure of the fishing plate and the inverted cone rotor block.

FIG. 8 is a cross-sectional view of the fishing plate and the inverted cone rotor block.

Fig. 9 is a partial structural cross-sectional view of the fishing plate and the inverted cone turning block.

FIG. 10 is a sectional view of a partial structure of the fishing plate and the inverted cone turning block.

FIG. 11 is a schematic view of the partial structure of the fishing plate and the inverted cone turning block.

FIG. 12 is a sectional view III of a partial structure of the fishing plate and the inverted cone turning block.

FIG. 13 is a schematic view of a fishing plate and a driving plate structure.

FIG. 14 is a schematic view of an auxiliary fishing assembly.

Fig. 15 is a schematic view of the structure of the auxiliary scraper.

Fig. 16 is a schematic view of a stirring assembly.

Reference numerals: 2-scum salvaging component; 3-an auxiliary salvage assembly; 4-a stirring assembly; 101-a base; 102-casting mold; 103-a support beam; 104-a scum collection box; 105-dumping ring; 106, dumping the motor; 107-an intermediate frequency furnace; 108-a cylinder I; 109-cylinder II; 201-an insulating cover; 202-insulating cover support; 203-a purifier; 204-driving a motor; 205-gear i; 206-gear II; 207-discharge plate; 208-torsion spring; 209-salvaging the plate; 210-a drive plate; 211-filtering holes; 212-square holes; 301-feeding pipe; 302-a charging box; 303-auxiliary push plate; 304-a discharging scraper; 305, back taper turning block; 306-an annular groove; 307-auxiliary scrapers; 308-rotating shaft; 309-mating grooves; 401-stirring shaft; 402-homogenizing the material block; 403-connecting rods; 404-stirring paddles; 405-a spring; 406-telescoping rod.

Detailed Description

The technical scheme of the invention is further described below by means of specific embodiments in combination with the accompanying drawings.

Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Examples: as shown in fig. 1-3, a support beam 103 is fixedly connected to a base 101, a pouring ring 105 is rotatably connected to the support beam 103, a pouring motor 106 is fixedly connected to the pouring ring 105, the pouring motor 106 is fixedly connected to the support beam 103, an intermediate frequency furnace 107 is fixedly connected to the pouring ring 105, a casting mold 102 is arranged on the base 101, a scum collecting box 104 is fixedly connected to the base 101, two cylinders I108 are fixedly connected to the support beam 103, a scum salvaging component 2 is arranged on the cylinders I108, an auxiliary salvaging component 3 is arranged on the scum salvaging component 2, and a stirring component 4 is arranged on the auxiliary salvaging component 3; the scum salvaging component 2 is used for collecting scum on the surface of molten iron, the auxiliary salvaging component 3 is used for assisting the scum salvaging component 2 to collect scum, discharging scum and driving the stirring component 4, the stirring component 4 is used for stirring molten iron, and inoculant, nodulizer and molten iron are mixed with each other with acceleration. When the preparation of the molten iron in the intermediate frequency furnace 107 is completed, the pouring motor 106 is started, so that the pouring ring 105 drives the intermediate frequency furnace 107 to rotate, and the molten iron is poured into the casting mold 102 when the intermediate frequency furnace 107 rotates.

As shown in fig. 4-13, an isolation cover bracket 202 is arranged on the scum salvage assembly 2, the isolation cover bracket 202 is fixedly connected with a cylinder I108, an isolation cover 201 is fixedly connected on the isolation cover bracket 202, a salvage plate 209 is fixedly connected on the isolation cover 201, a driving plate 210 is fixedly connected on the salvage plate 209, and the salvage plate 209 is in a cone shape; the salvaging plate 209 is provided with a plurality of filtering holes 211 in an array manner, the driving plate 210 is provided with a plurality of square holes 212 in a circumferential array manner, and the area of the square holes 212 is larger than that of the filtering holes 211; the driving motor 204 is fixedly connected to the isolation cover bracket 202, the gear II 206 is fixedly connected to the driving motor 204, the gear I205 is rotationally connected to the isolation cover bracket 202, the gear I205 is always meshed with the gear II 206, and the gear I205 is in sliding connection with the feeding pipe 301; the feeding pipe 301 is fixedly connected with a charging box 302, the charging box 302 consists of two cabins, electromagnetic valves are respectively arranged on the two cabins, the charging box 302 is rotationally connected with a cylinder II 109, and the cylinder II 109 is fixedly connected with a cylinder I108; the isolation cover 201 is rotationally connected with the discharge plate 207, the discharge plate 207 is fixedly connected with the torsion spring 208, the other end of the torsion spring 208 is fixedly connected with the isolation cover 201, one side of the dross collection box 104 close to the isolation cover 201 is an arc surface, the circle center of the arc coincides with the circle center of the isolation cover 201, the radius of the arc surface on the dross collection box 104 is the same as the radius of the isolation cover 201, the discharge plate 207 is intermittently matched with the dross collection box 104, and the distance between the dross collection box 104 and the intermediate frequency furnace 107 is smaller than the height of the discharge plate 207; an air outlet hole is arranged on the isolation cover 201, a purifier 203 is fixedly connected on the isolation cover 201, and the purifier 203 is communicated with the air outlet hole.

As shown in fig. 7-15, a feeding pipe 301 is arranged on the auxiliary salvaging component 3, the feeding pipe 301 is movably connected with the isolation cover 201, an inverted cone rotating block 305 is fixedly connected to the feeding pipe 301, an auxiliary push plate 303 and a discharging scraper 304 are fixedly connected to the inverted cone rotating block 305, the auxiliary push plate 303 is fixedly connected with the discharging scraper 304, a rotating shaft 308 is rotatably connected to the inverted cone rotating block 305, an auxiliary scraper 307 is fixedly connected to the rotating shaft 308, an annular groove 306 is arranged on the inverted cone rotating block 305, the depth of the annular groove 306 is consistent with the height of the driving plate 210, the driving plate 210 is in intermittent fit with the auxiliary scraper 307, and the driving plate 210 is in intermittent fit with the annular groove 306; the reverse taper rotating block 305 is provided with a through hole on the axis, the through hole is communicated with the feeding pipe 301, the diameter of the through hole is the same as the inner diameter of the feeding pipe 301, one end of the through hole far away from the feeding pipe 301 is provided with a plurality of sliding grooves, and the reverse taper rotating block 305 is provided with a plurality of matching grooves 309; the connecting rod 403 is connected on the sliding chute in a sliding way, the connecting rod 403 is fixedly connected on the material homogenizing block 402, and the material homogenizing block 402 is conical, and the maximum radius of the conical shape is larger than the radius of the through hole on the inverted cone rotating block 305.

As shown in fig. 16, the connecting rod 403 is slidingly connected to the chute, the connecting rod 403 is fixedly connected to the material homogenizing block 402, the material homogenizing block 402 is conical, and the maximum radius of the conical shape is larger than the radius of the through hole on the back taper rotating block 305; the stirring shaft 401 is fixedly connected with a telescopic rod 406, the telescopic rod 406 is fixedly connected with a plurality of stirring paddles 404, and two adjacent stirring paddles 404 are connected through a spring 405.

Working principle: after the materials in the intermediate frequency furnace 107 are melted into molten iron, two air cylinders I108 and II 109 are started, so that the air cylinders I108 and II 109 extend out at the same speed, the scum salvage component 2, the auxiliary salvage component 3 and the stirring component 4 move towards the direction close to the base 101 at the same speed, then the discharge plate 207 starts to contact the scum collecting box 104, so that the torsion spring 208 is compressed, the discharge plate 207 can rotate to be attached to the isolation cover 201, then the discharge plate 207 follows the isolation cover 201 to be embedded into the intermediate frequency furnace 107, then the stirring paddles 404 far away from the stirring shaft 401 firstly contact the molten iron, as the air cylinders I108 and II 109 extend out continuously, the stirring paddles 404 abut against the bottom of the intermediate frequency furnace 107, and meanwhile, the connecting rod 403 slides on the chute on the inverted cone rotating block 305, since the maximum radius of the homogenizing block 402 is larger than the radius of the through hole on the back taper rotating block 305, the homogenizing block 402 can plug the through hole on the back taper rotating block 305, which is to prevent the molten iron from flowing into the through hole on the back taper rotating block 305 to cause adhesion when inoculant and nodulizer are subsequently delivered, then the telescopic rod 406 starts to be uniformly retracted, the telescopic rod 406 is compressed to the same extent, the space between all stirring paddles 404 starts to be reduced, as the cylinder I108 and the cylinder II 109 continuously extend, one end of the connecting rod 403 and one end of the back taper rotating block 305 slowly sink into molten iron, then the fishing plate 209 starts to contact the liquid level, the maximum radius of the fishing plate 209 is the same as the inner diameter of the intermediate frequency furnace 107, so that the cylinder II 109 can collect all scum on the liquid level in the intermediate frequency furnace 107 to the center, and simultaneously scrape down scum possibly remained on the inner wall of the intermediate frequency furnace 107, the end of the reverse taper rotating block 305 near the stirring assembly 4 can discharge the scum on the liquid surface outwards, so that when the salvaging plate 209 is slowly immersed by the molten iron, the scum at the lower part of the salvaging plate 209 and around the reverse taper rotating block 305 starts to float to the upper part of the salvaging plate 209 through the square hole 212 until the driving plate 210 is completely immersed by the molten iron, as shown in fig. 9; at this time, the liquid surface is level with one end of the auxiliary scraper 307 close to the annular groove 306, at this time, the cylinder I108 stops extending, and the cylinder II 109 continues extending, so that the reverse taper rotation block 305 moves towards the direction close to the salvaging plate 209, at this time, the driving plate 210 will prop against the auxiliary scraper 307, and along with the movement of the reverse taper rotation block 305, the driving plate 210 will prop against the auxiliary scraper 307 to rotate all the time until one end of the auxiliary scraper 307 far away from the annular groove 306 is rotated to be attached to the lower surface of the salvaging plate 209, as exemplified in fig. 8; at this time, the cylinder ii 109 stops extending, the driving motor 204 starts rotating, so that the gear ii 206 drives the gear i 205 to rotate, the gear i 205 drives the feeding pipe 301, the feeding pipe 301 drives the back taper rotating block 305 to drive the auxiliary push plate 303, the discharging scraper 304 and the auxiliary scraper 307 to rotate, the auxiliary scraper 307 rotates to scrape the surface of the salvage plate 209 close to the stirring assembly 4, and as the salvage plate 209 is provided with the plurality of filtering holes 211, the situation that part of scum is blocked at the lower part of the salvage plate 209 and cannot float smoothly is avoided, all scum at the lower part of the salvage plate 209 can float smoothly between the driving plate 210 and the back taper rotating block 305 through scraping of the auxiliary scraper 307, no scum is attached to the surface of the back taper rotating block 305, and the scum is reduced, if the scum is more, the scum in the subsequent floating can not reach the upper part of the salvage plate 209 through square hole 212, so that the cleaner 203 is required to rotate, and the scum in the liquid surface of the salvage plate 303 is separated from the direction of the center of the circle of the cover 201 through stirring of the auxiliary push plate 209, so that the scum in the subsequent floating can float through the square hole 212; after that, the cylinder ii 109 continues to extend, but the driving plate 210 cannot rotate the auxiliary scraper 307 again, the auxiliary scraper 307 moves along with the back taper turning block 305, and along with the movement of the back taper turning block 305, the driving plate 210 is embedded into the annular groove 306, until the driving plate 210 is completely embedded into the annular groove 306, the auxiliary scraper 307 is separated from the driving plate 210, and the auxiliary scraper 307 is reversely reset under the action of gravity, as illustrated in fig. 10; at this time, the scum at the upper part of the salvaging plate 209 can not flow to the lower part of the salvaging plate 209 through the salvaging plate 209, the driving plate 210 and the reverse taper rotating block 305, meanwhile, the discharging scraping plate 304 is also attached to the upper surface of the salvaging plate 209, at this time, the cylinder I108 and the cylinder II 109 are started to synchronously shrink, so that the scum salvaging assembly 2 and the auxiliary salvaging assembly 3 synchronously move upwards until the refining block 402 leaves the liquid surface, at this time, the isolation cover 201 is still embedded in the intermediate frequency furnace 107, the cylinder I108 and the cylinder II 109 are controlled to stop shrinking, at this time, the electromagnetic valve controlling the cabin storing the inoculant in the charging box 302 is opened, so that the inoculant falls on the refining block 402 through the through holes of the feeding pipe 301 and the reverse taper rotating block 305, the inoculant can be uniformly dispersed around, meanwhile, due to the rotation of the inverted cone rotating block 305, the stirring shaft 401 starts to drive the stirring paddles 404 to start to rotate, so that the inoculant and the iron liquid are uniformly mixed, the purifier 203 is required to be started because smoke dust is generated after the inoculant is added, the purifier 203 is required to be started because the upper end of the intermediate frequency furnace 107 is sealed by the isolating cover 201, the generated smoke dust can be sucked and purified after the purifier 203 is started, and at the moment, the external air flows into the isolating cover 201 through the inoculation cabin on the charging box 302 and then flows into the isolating cover 201 through the homogenizing block 402, so that if the feeding pipe 301 is blocked, the air suction of the purifier 203 can be beneficial to dredging the blockage in the feeding pipe 301; then the electromagnetic valve of the cabin for storing the nodulizer on the charging box 302 is controlled to be opened, and the electromagnetic valve of the cabin for storing the inoculant is controlled to be closed, so that the nodulizer is also fallen on the homogenizing block 402 and is uniformly stirred by the stirring paddle 404, at the moment, the effect of the purifier 203 is still the same, in the process of stirring twice, the iron liquid in the salvaging plate 209 is slowly drained, and at the moment, the salvaging plate 209 only has scum; when the stirring is completed, the cylinders I108 and II 109 are controlled to continuously shrink, when the discharging plate 207 moves to be higher than the scum collecting box 104 and is completely separated from the scum collecting box 104, the discharging plate 207 rotates and opens under the action of the torsion spring 208, at the moment, the reverse taper rotating block 305 drives the discharging scraper 304 to rotate, the discharging scraper 304 pushes out scum collected on the salvaging plate 209 and then falls into the scum collecting box 104 to be collected, then the cylinder I108 stops shrinking, but the cylinder II 109 continues shrinking, so that the distance between the reverse taper rotating block 305 and the salvaging plate 209 is increased, the discharging scraper 304 is far away from the salvaging plate 209, at the moment, the auxiliary scraper 307 rotates once again due to the action of the driving plate 210, taking fig. 12 as an example; at this time, the auxiliary scraper 307 is matched with the matching groove 309, when the reverse taper rotating block 305 is completely far away from the salvaging plate 209 and is reset, the auxiliary scraper 307 is reset due to gravity, then the air cylinder I108 and the air cylinder II 109 are synchronously started to enable the stirring assembly 4 to be completely separated from the liquid level, then the intermediate frequency furnace 107 is waited for spheroidizing the molten iron, the residual molten iron on the stirring assembly 4 can be dripped into the intermediate frequency furnace 107 without waste, after the intermediate frequency furnace 107 is waited for spheroidizing, the pouring motor 106 is started, the pouring ring 105 drives the intermediate frequency furnace 107 to rotate, and the molten iron is poured into the casting mold 102, and is cooled and molded.

The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the present invention without inventive labor, as those skilled in the art will recognize from the above-described concepts.

Claims (9)

1. The utility model provides a nodular cast iron's apparatus for producing for wind-powered electricity generation foundry goods, includes base (101), fixed connection support roof beam (103) on base (101), rotates on support roof beam (103) to connect and emptys circle (105), empties on circle (105) fixed connection and emptys motor (106), empties motor (106) and support roof beam (103) fixed connection, empties on circle (105) fixed connection intermediate frequency furnace (107), is provided with foundry goods mould (102) on base (101), its characterized in that: the scum collecting box is fixedly connected with the base (101), the support beam (103) is fixedly connected with two air cylinders I (108), the air cylinders I (108) are provided with scum salvaging components (2), the scum salvaging components (2) are provided with auxiliary salvaging components (3), and the auxiliary salvaging components (3) are provided with stirring components (4); the scum salvaging component (2) is used for collecting scum on the surface of molten iron, the auxiliary salvaging component (3) is used for assisting the scum salvaging component (2) to collect scum, discharging scum and driving the stirring component (4), and the stirring component (4) is used for stirring molten iron, so as to accelerate the mixing of inoculant, nodulizer and molten iron;

the scum salvaging device is characterized in that an isolation cover bracket (202) is arranged on the scum salvaging assembly (2), the isolation cover bracket (202) is fixedly connected with the air cylinder I (108), an isolation cover (201) is fixedly connected to the isolation cover bracket (202), a salvaging plate (209) is fixedly connected to the isolation cover (201), a driving plate (210) is fixedly connected to the salvaging plate (209), and the salvaging plate (209) is in a conical cylinder shape;

the auxiliary salvage assembly (3) on be provided with conveying pipe (301), conveying pipe (301) and isolated cover (201) swing joint, conveying pipe (301) on fixed connection back taper turning block (305), back taper turning block (305) on fixed connection auxiliary push pedal (303), ejection of compact scraper blade (304), auxiliary push pedal (303) and ejection of compact scraper blade (304) fixed connection, back taper turning block (305) on rotate and connect pivot (308), fixed connection auxiliary scraper blade (307) on pivot (308), be provided with ring channel (306) on back taper turning block (305), the degree of depth and the drive plate (210) highly conform of ring channel (306), drive plate (210) and auxiliary scraper blade (307) intermittent type cooperation, drive plate (210) and ring channel (306) intermittent type cooperate.

2. The production device of spheroidal graphite cast iron for wind power castings according to claim 1, wherein: the fishing plate (209) on the array be provided with a plurality of filtration pore (211), the circumference array on drive plate (210) set up a plurality of square hole (212), square hole (212) area be greater than the area of filtration pore (211).

3. The production device of spheroidal graphite cast iron for wind power castings according to claim 2, wherein: the device is characterized in that a driving motor (204) is fixedly connected to the isolation cover bracket (202), a gear II (206) is fixedly connected to the driving motor (204), a gear I (205) is rotatably connected to the isolation cover bracket (202), the gear I (205) is always meshed with the gear II (206), and the gear I (205) is in sliding connection with the feeding pipe (301); the feeding pipe (301) on fixed connection charging box (302), charging box (302) comprise two cabins, be provided with the solenoid valve on two cabins respectively, charging box (302) on rotate and connect cylinder II (109), cylinder II (109) fixed connection is on cylinder I (108).

4. The production device of spheroidal graphite cast iron for wind power castings according to claim 1, wherein: the reverse taper rotating block (305) is provided with a through hole on the axis, the through hole is communicated with the feeding pipe (301) and has the same diameter as the inner diameter of the feeding pipe (301), one end of the through hole far away from the feeding pipe (301) is provided with a plurality of sliding grooves, and the reverse taper rotating block (305) is provided with a plurality of matching grooves (309).

5. The production device of spheroidal graphite cast iron for wind power castings according to claim 4, wherein: the chute on sliding connection connecting rod (403), connecting rod (403) fixed connection is on even material piece (402), even material piece (402) be conical, the biggest radius of this conical is greater than the radius of through-hole on back taper turning block (305).

6. The production device of spheroidal graphite cast iron for wind power castings according to claim 5, wherein: the stirring shaft (401) is fixedly connected with a telescopic rod (406), the telescopic rod (406) is fixedly connected with a plurality of stirring paddles (404), and two adjacent stirring paddles (404) are connected through a spring (405).

7. The production device of spheroidal graphite cast iron for wind power castings according to claim 1, wherein: the slag collecting box is characterized in that a discharge plate (207) is rotationally connected to the isolation cover (201), a torsion spring (208) is fixedly connected to the discharge plate (207), the other end of the torsion spring (208) is fixedly connected with the isolation cover (201), one side, close to the isolation cover (201), of the slag collecting box (104) is an arc surface, the circle center of the arc coincides with the circle center of the isolation cover (201), and the discharge plate (207) is in intermittent fit with the slag collecting box (104).

8. The production device of spheroidal graphite cast iron for wind power castings according to claim 7, wherein: the air outlet is formed in the isolation cover (201), the purifier (203) is fixedly connected to the isolation cover (201), and the purifier (203) is communicated with the air outlet.

9. A process for producing spheroidal graphite cast iron for wind power castings using the device according to any one of claims 1 to 8, characterized by comprising the steps of:

s1, selecting raw materials, adding a furnace return material, pig iron, silicon carbide and common carbon scrap steel as main furnace materials into an intermediate frequency furnace (107), and completely melting the main furnace materials;

s2, salvaging scum on the surface layer of the molten iron;

s3, adding an inoculant for inoculation, and then adding a nodulizer for nodulizing;

s4, pouring the prepared molten iron into a casting mold (102), and cooling and forming the molten iron.

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