CN210711611U

CN210711611U - Preparation device of vermicular cast iron with high pearlite and high vermicular rate

Info

Publication number: CN210711611U
Application number: CN201921664439.9U
Authority: CN
Inventors: 缪剑晖; 周飞; 周剑锋
Original assignee: Anhui Highly Precision Casting Co Ltd
Current assignee: Anhui Highly Precision Casting Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-09
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to a vermicular graphite cast iron preparation field specifically discloses a high pearlite body high vermicular graphite cast iron preparation facilities of rate, including the peg, the lower extreme of peg is provided with the vacuum groove, the slide bar is installed to the lower extreme in vacuum groove, the sliding sleeve is all installed at the both ends of slide bar, the pivot is installed to the lower extreme of sliding sleeve, the connecting rod is installed to one side of knot pole, the ladle is installed to the lower extreme of peg. The vacuum groove passes through the slide bar and the sliding sleeve slides on the connecting rod, when being full of the molten iron in the ladle, the ascending gas blow pipe blows in argon gas with predetermined flow, at the decarbonization in-process, carbon and oxygen reaction in the molten iron form carbon monoxide and discharge through the gas outlet, thereby make the impurity in the molten iron get rid of, the quality of product has been improved, the vacuum groove passes through sliding sleeve and slide bar sliding connection with the peg, avoided traditional desorption impurity to need to move the molten iron to the ladle in again with the top in vacuum groove, delay the time of processing.

Description

Preparation device of vermicular cast iron with high pearlite and high vermicular rate

Technical Field

The utility model relates to a vermicular cast iron preparation technical field specifically is a high pearlite height vermicular cast iron preparation facilities of rate of vermicular cast iron.

Background

The ladle in the cast iron is used for casting operation in a casting shop, receives molten iron in front of a furnace, and then conveys the molten iron to a casting mould for casting through a transfer trolley, and the traditional cast iron method comprises two steps, wherein one step is primary smelting, and the other step is refining; the primary smelting is to carry out melting, dephosphorization, decarburization and alloying of furnace burden in oxidizing atmosphere; the refining is to carry out deep decarburization, degassing, deoxidation, inclusion removal and inclusion modification treatment under the conditions of vacuum, inert gas or controlled atmosphere, adjust components, control the temperature of molten steel and the like, thereby optimizing the process and the product structure, developing high value-added products, saving energy, reducing consumption, reducing cost and increasing economic benefits.

However, the cast iron refining on the market at present generally transfers the cast iron liquid in the ladle to the next working section for decarburization and degassing, resulting in a complicated process and a delay in working time. Therefore, the skilled person provides a high pearlite and high vermicular cast iron preparation device to solve the problems mentioned in the background art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high pearlite height vermicular graphite cast iron preparation facilities of rate of vermicular graphite to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a high pearlite body high creep rate vermicular cast iron preparation facilities, includes the peg, the lower extreme of peg is provided with the vacuum groove, the slide bar is installed to the lower extreme in vacuum groove, the sliding sleeve is all installed at the both ends of slide bar, the pivot is installed to the lower extreme of sliding sleeve, install the pin between pivot and the sliding sleeve, the connecting rod is installed to one side of pin, the ladle is installed to the lower extreme of peg, the front end of ladle is provided with the pouring opening, sliding sleeve has been cup jointed in the outside in vacuum groove.

As a further aspect of the present invention: and a filling hole is arranged at the upper end of the vacuum groove, an air outlet is arranged at the lower end of the filling hole, and a window is arranged between the air outlet and the filling hole.

As a further aspect of the present invention: the lower extreme of vacuum tank is provided with the discharging pipe, the inlet pipe is installed to one side of discharging pipe, the gas blow pipe is installed to the upper end of inlet pipe.

As a further aspect of the present invention: the feeding pipe and the discharging pipe are communicated with the vacuum groove, and the air blowing pipe is communicated with the air blowing pipe.

As a further aspect of the present invention: the air outlet and the filling hole are communicated with the vacuum groove, and the filling hole is externally connected with an aluminum bin.

As a further aspect of the present invention: the connecting rod is rotatably connected with the rotating shaft, the sliding rod is slidably connected with the connecting rod through a sliding sleeve, and the buckling rod is fixedly connected with the ladle.

As a further aspect of the present invention: the utility model discloses a vacuum pump, including hanger bar and slide bar, vacuum groove, pivot, connecting rod, vacuum groove and slide bar pass through slip sleeve lock joint, the external vacuum pump in vacuum groove, the external rotation motor of pivot, the external motor of slide bar.

Compared with the prior art, the beneficial effects of the utility model are that: the preferable vacuum tank slides on the connecting rod through the sliding rod and the sliding sleeve, when the ladle is filled with molten iron, the ladle is jacked by the hydraulic cylinder, the feeding pipe of the vacuum tank is immersed into the molten iron to a preset depth, meanwhile, the ascending gas blowing pipe blows in argon gas at a preset flow rate, and vacuum dehydrogenation treatment is carried out along with the complete immersion of the feeding pipe into the molten iron; the cyclic degassing reaches the target value of decarburization after a certain time; in the decarburization process, carbon monoxide is formed by reaction of carbon and oxygen in the molten steel and is discharged from a gas outlet, so that impurities in the molten steel are removed, the quality of a product is improved, the refining is to perform deep decarburization, degassing, deoxidation, inclusion removal and inclusion denaturation treatment under the conditions of vacuum, inert gas or controlled atmosphere, a vacuum groove is in sliding connection with a hanging rod through a sliding sleeve and a sliding rod, the problem that the conventional molten iron is required to be moved into a ladle and then transferred to the upper part of the vacuum groove to delay the processing time is avoided, and meanwhile, the temperature of the molten iron in the ladle is prevented from being reduced in the transfer process, so that the product quality is influenced; the hanging rod and the processing line are fixed and then the rotating shaft is rotated, so that the ladle can dump materials and collect molten iron transferred by the transfer trolley.

Drawings

FIG. 1 is a schematic structural diagram of a high pearlite and high vermicular rate vermicular cast iron preparation device;

FIG. 2 is a schematic structural diagram of a vacuum tank in a high pearlite and high vermicular rate vermicular cast iron preparation device;

FIG. 3 is a schematic diagram of a top view structure of a hollow groove of a high pearlite and high vermicular cast iron preparation device.

In the figure: 1. a hanging rod; 2. a vacuum tank; 3. a buckle rod; 4. a rotating shaft; 5. a ladle; 6. pouring a spout; 7. a connecting rod; 8. a slide bar; 9. a sliding sleeve; 201. a window; 202. an air outlet; 203. an air blowing pipe; 204. a feed pipe; 205. a discharge pipe; 206. a filler hole; 801. a sliding sleeve.

Detailed Description

Referring to fig. 1-3, in an embodiment of the present invention, a high pearlite vermicular graphite cast iron preparation device with high vermicular graphite ratio includes a hanging rod 1, a vacuum groove 2 is provided at a lower end of the hanging rod 1, a sliding rod 8 is installed at a lower end of the vacuum groove 2, a sliding sleeve 9 is installed at both ends of the sliding rod 8, a rotating shaft 4 is installed at a lower end of the sliding sleeve 9, a buckling rod 3 is installed between the rotating shaft 4 and the sliding sleeve 9, a connecting rod 7 is installed at one side of the buckling rod 3, a ladle 5 is installed at a lower end of the hanging rod 1, a pouring opening 6 is provided at a front end of the ladle 5, and a sliding sleeve 801 is sleeved at.

In 1, 2, 3: a filling hole 206 is arranged at the upper end of the vacuum tank 2, an air outlet 202 is arranged at the lower end of the filling hole 206, a window 201 is arranged between the air outlet 202 and the filling hole 206, an exhaust pipe 205 is arranged at the lower end of the vacuum tank 2, a feed pipe 204 is arranged at one side of the exhaust pipe 205, and an air blowing pipe 203 is arranged at the upper end of the feed pipe 204; the feeding pipe 204 and the discharging pipe 205 are in through connection with the vacuum groove 2, the blowing pipe 203 is in through connection with the blowing pipe 203, the gas outlet 202 and the filling hole 206 are in through connection with the vacuum groove 2, the filling hole 206 is externally connected with an aluminum bin, the connecting rod 7 is rotatably connected with the rotating shaft 4, the sliding rod 8 is slidably connected with the connecting rod 7 through the sliding sleeve 9, the buckle rod 3 is fixedly connected with the ladle 5, the hanging rod 1 is fixedly connected with the connecting rod 7, the vacuum groove 2 is buckled with the sliding rod 8 through the sliding sleeve 801, the vacuum groove 2 is externally connected with a vacuum pump (the model is JZJ2S600+2KS-12), the rotating shaft 4 is externally connected with a rotating motor (the model is Y-160L-.

In fig. 1, 2, 3: the molten iron metallurgy reaction is carried out in the vacuum groove 2; the lower part of vacuum chamber 2 sets up inlet pipe 204 and discharging pipe 205 because gas blow pipe 203 constantly blows in the argon gas to the molten steel, the discharging pipe 205 that does not blow the argon relatively has produced a higher static pressure difference, make the molten steel get into and flow into discharging pipe 205 through vacuum chamber 2 lower part from the tedge, so continuous circulation reaches the carbon in the molten iron with in the ladle 5 repeatedly, oxygen, the purpose that impurity such as hydrogen got rid of, vacuum chamber 2 passes through slide bar 8 and sliding sleeve 9 and is connected with connecting rod 7, pivot 4 only can make ladle 5 rotate at the rotation in-process, vacuum chamber 2 can guarantee relatively statically, thereby conveniently topple over the molten iron after the end, the setting of knot pole 3 can avoid ladle 5 to rock when ladle 5 resets and lead to the molten iron to splash and fall harm the user.

The utility model discloses a theory of operation is: the ladle 5 is lifted to a station ladle trolley through a crane, the ladle 5 is lifted to a preset height by a hydraulic lifting mechanism of a treatment station through a vacuum system pre-vacuumizing trolley, a vacuum column is opened, when the ladle 5 is filled with molten iron, the ladle 5 is lifted by a hydraulic cylinder, a feeding pipe 204 of a vacuum groove 2 is immersed into the molten steel to a preset depth, meanwhile, an ascending air blowing pipe 203 blows in argon at a preset flow rate, and all stages of vacuum pumps are started to work according to a preset air pumping curve by starting the vacuum system along with the fact that the feeding pipe 204 is completely immersed into the molten steel; and (3) vacuum dehydrogenation treatment: continuously performing cyclic degassing operation under the condition of specified time and specified low pressure to reach the target value of dehydrogenation; the cyclic degassing is continued for a certain time to reach the target value of decarburization; in the decarburization process, carbon and oxygen in the molten steel react to form carbon monoxide and the carbon monoxide is discharged through the gas outlet 202; if the oxygen content in the steel is insufficient, oxygen can be provided by blowing oxygen through the filler holes 206; when the carbon in the molten iron is reacted by oxygen, the decarburization is finished, the molten iron is deoxidized by adding aluminum through the filling hole 206, and the deep decarburization, degassing, deoxidation, inclusion removal and inclusion modification treatment are carried out under the conditions of vacuum, inert gas or controlled atmosphere, so that the components can be adjusted, the temperature of the molten steel is controlled, and the like, thereby optimizing the process and the product structure, developing high value-added products, saving energy, reducing consumption, reducing cost, increasing economic benefits and the like, the molten iron after impurity removal drives the molten iron ladle 5 to rotate through the rotating shaft 4 to pour the molten iron into a forming die from the pouring opening 6 to achieve the required product, the vacuum groove 2 is connected with the hanging rod 1 through the sliding sleeve 9 and the sliding rod 8 in a sliding manner, the traditional impurity removal that the molten iron needs to be moved into the molten iron ladle 5 and then the molten iron ladle 5 is transferred to the upper side of the vacuum groove 2 is avoided, the processing time is delayed, and the temperature of the molten iron in the molten iron, thereby affecting product quality.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a high pearlite body high creep rate vermicular cast iron preparation facilities, includes peg (1), its characterized in that, the lower extreme of peg (1) is provided with vacuum tank (2), slide bar (8) are installed to the lower extreme of vacuum tank (2), sliding sleeve (9) are all installed at the both ends of slide bar (8), pivot (4) are installed to the lower extreme of sliding sleeve (9), install buckle bar (3) between pivot (4) and sliding sleeve (9), connecting rod (7) are installed to one side of buckle bar (3), ladle (5) are installed to the lower extreme of peg (1), the front end of ladle (5) is provided with pouring opening (6), sliding sleeve (801) have been cup jointed in the outside of vacuum tank (2).

2. The high-pearlite high-vermicular rate vermicular cast iron preparation device according to claim 1, wherein a filling hole (206) is installed at the upper end of the vacuum tank (2), an air outlet (202) is formed at the lower end of the filling hole (206), and a window (201) is formed between the air outlet (202) and the filling hole (206).

3. The device for preparing the high-pearlite high-vermicular-rate vermicular cast iron according to claim 2, wherein a discharge pipe (205) is arranged at the lower end of the vacuum tank (2), a feeding pipe (204) is arranged on one side of the discharge pipe (205), and a blowing pipe (203) is arranged at the upper end of the feeding pipe (204).

4. The device for preparing the high-pearlite high-vermicular graphite cast iron according to claim 3, wherein a feed pipe (204) and a discharge pipe (205) are communicated with a vacuum tank (2), and a gas blowing pipe (203) is communicated with the gas blowing pipe (203).

5. The device for preparing the high-pearlite high-vermicular graphite cast iron according to claim 2, wherein the air outlet (202) and the filler hole (206) are communicated with a vacuum tank (2), and the filler hole (206) is externally connected with an aluminum bin.

6. The device for preparing the high-pearlite high-vermicular graphite cast iron according to claim 1, wherein the connecting rod (7) is rotatably connected with the rotating shaft (4), the sliding rod (8) is slidably connected with the connecting rod (7) through a sliding sleeve (9), and the buckling rod (3) is fixedly connected with the ladle (5).

7. The device for preparing the high-pearlite high-vermicular graphite cast iron according to claim 1, wherein the hanging rod (1) is fixedly connected with a connecting rod (7), the vacuum groove (2) and the sliding rod (8) are buckled through a sliding sleeve (801), the vacuum groove (2) is externally connected with a vacuum pump, the rotating shaft (4) is externally connected with a rotating motor, and the sliding rod (8) is externally connected with a motor.