CN220288161U

CN220288161U - Vacuum melting system

Info

Publication number: CN220288161U
Application number: CN202321467948.9U
Authority: CN
Inventors: 林永良; 代传峰; 刘迎春
Original assignee: Shanghai Xinyan Industrial Equipment Co ltd
Current assignee: Shanghai Xinyan Industrial Equipment Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2024-01-02
Anticipated expiration: 2033-06-09

Abstract

The application discloses vacuum melting system includes: the device comprises one or more vacuum induction furnaces, furnace covers, a charging tower bracket and a charging trolley, wherein the charging tower is positioned on the charging tower bracket and comprises a charging device which can extend into the furnace body of the vacuum induction furnace; the charging tower bracket is configured to enable the charging tower to be positioned right above the vacuum induction furnace or far from the right above the vacuum induction furnace by translation or rotation; the furnace cover is detachably connected below the charging tower and is configured to: when the material is buckled on the furnace body, a passage from the charging tower to the furnace cover to the furnace body can be formed; the charging trolley is internally constructed so that when the furnace cover is not buckled on the vacuum induction furnace, the charging trolley moves to the furnace body and adds metal solid raw materials into the furnace body under the atmospheric pressure state. The furnace cover is movable, and can be used for high-efficiency feeding in an atmospheric state/a vacuum state; the integrated production system can be formed by expanding the integrated production system into double-side chute car channels and matching with modules such as a casting cavity, a chute cavity, a casting valve and the like.

Description

Vacuum melting system

Technical Field

The application relates to the field of casting equipment, in particular to a vacuum smelting system.

Background

Vacuum induction melting is one of typical special metallurgical means and is widely concerned in the field of ferrous metallurgy at home and abroad. The vacuum induction furnace is a vacuum smelting complete equipment which applies the medium frequency induction heating principle under the vacuum condition to melt metal. Is one of the important vacuum smelting equipment for producing nickel-based superalloy, titanium alloy, stainless steel, ultra-high strength steel and other special alloy materials in the metallurgical field at present. Meanwhile, the vacuum induction furnace is also very important and irreplaceable equipment for smelting and producing high-quality alloy steel.

The furnace cover and the charging valve of the vacuum melting furnace in the market at present are usually respectively and independently arranged as matched parts, so that the occupied space is large; due to the limitation of the layout or structure of the vacuum smelting furnace, the mobility of the furnace cover is poor, and the charging under the atmosphere is usually carried out by adopting a crane suspension charging barrel, so that the efficiency is low; in addition, the front part of the smelting furnace body is usually provided with a single-side chute car channel, and the other side of the smelting furnace body is not expansile, so that the efficiency of molten iron output and utilization is low.

Disclosure of Invention

The furnace cover of the vacuum smelting furnace adopts a charging valve integrated design, so that the vacuum smelting furnace is compact in structure; the furnace cover is of a movable design, and the smelting furnace adopts a charging trolley for charging in an atmospheric state, so that the efficiency is high; the revolving shaft of the smelting furnace body corresponds to two side walls, can be expanded into double-side chute car channels, and is matched with modules such as a casting cavity, a chute cavity, a casting valve and the like to form an integrated production system.

The application discloses vacuum melting system includes: a vacuum induction furnace, a furnace cover, a charging tower bracket and a charging trolley, wherein,

the number of the vacuum induction furnaces is one or more;

the charging tower is positioned on the charging tower bracket and comprises a charging device which can extend into the vacuum induction furnace body; the charging tower bracket is configured to enable the charging tower to be positioned right above the vacuum induction furnace or far from the right above the vacuum induction furnace by translation or rotation;

the furnace cover is detachably connected below the charging tower and is configured to: when the metal plate is buckled on the furnace body, the metal plate can be formed from top to bottom: a passageway from the charging tower to the furnace cover to the furnace body;

the charging trolley is internally constructed so that when the furnace cover is not buckled on the vacuum induction furnace, the charging trolley moves to the furnace body and adds metal solid raw materials into the furnace body under the atmospheric pressure state.

In a preferred embodiment, the feeding device comprises a motor, a feeding cylinder and a steel wire rope; wherein,

the charging barrel is suspended on a steel wire rope after being manually charged, and is driven by a motor to descend into or ascend out of the furnace body through the passage.

In a preferred embodiment, the charging barrel further comprises a temperature measuring device, the temperature measuring device comprises a sensor, the sensor is suspended on a cable, and the sensor is driven by a motor to descend into or ascend out of the furnace body through the passage.

In a preferred embodiment, the charging and/or temperature measuring device of the vacuum induction furnace is walking or rotary.

In a preferred embodiment, one or more of the vacuum induction furnaces are rotary, and the charging tower is rotated by a driving force carrying a furnace cover or is displaced in a height direction so as to be connected to or removed from the furnace body.

In a preferred embodiment, one or more of the vacuum induction furnaces are translational, the charging tower support comprises a track extending in one dimension, the track comprising a first end located directly above the furnace shell and a second end remote from the furnace shell, the charging tower being driven along the track directly above the furnace body or remote from the furnace body.

In a preferred embodiment, when the number of vacuum induction furnaces is 2, a casting cavity is arranged between the two furnace bodies;

the system also includes a chute car configured to move between the two vacuum induction furnaces and to receive and pour molten iron and a chute cavity.

In a preferred embodiment, the chute chamber is provided on one side of at least one vacuum induction furnace for storing the chute car.

The application has at least the following beneficial effects:

1. the vacuum smelting furnace body can adopt the charging tower for charging under vacuum, and can adopt the charging trolley for high-efficiency charging under the atmospheric state, so that the production line is convenient to adapt;

2. the vacuum furnace cover is integrated with a charging valve, so that the whole structure is compact; the vacuum furnace cover is flexibly connected with the charging cavity by a three-point pin shaft, so that the furnace cover moves along with the charging tower and is quickly separated;

3. when the vacuum furnace cover and the smelting furnace are closed, the hydraulic device reliably locks the furnace cover, thereby meeting the safety requirements of tilting the furnace back and forth;

4. the front part of the smelting furnace body is provided with a chute car channel, and the chute car can enter the smelting cavity through the center of a large rotary shaft on the side wall of the smelting furnace and is communicated with the casting cavity; the smelting furnace body is connected with the casting cavity through a smelting furnace connecting cavity and a casting valve, and the smelting furnace connecting cavity is externally connected with a vacuum-pumping device;

5. the vacuum melting furnace adopts a modularized design and has good function expansibility.

In the present application, a number of technical features are described in the specification, and are distributed in each technical solution, which makes the specification too lengthy if all possible combinations of technical features (i.e. technical solutions) of the present application are to be listed. In order to avoid this problem, the technical features disclosed in the above summary of the present application, the technical features disclosed in the following embodiments and examples, and the technical features disclosed in the drawings may be freely combined with each other to constitute various new technical solutions (which should be regarded as having been described in the present specification) unless such a combination of technical features is technically impossible. For example, in one example, feature a+b+c is disclosed, in another example, feature a+b+d+e is disclosed, and features C and D are equivalent technical means that perform the same function, technically only by alternative use, and may not be adopted simultaneously, feature E may be technically combined with feature C, and then the solution of a+b+c+d should not be considered as already described because of technical impossibility, and the solution of a+b+c+e should be considered as already described.

Drawings

FIG. 1 is a schematic illustration of a vacuum melting furnace system according to the present application in an atmospheric feed state;

FIG. 2 is a schematic view of a vacuum melting furnace system according to the present application in a vacuum state;

FIG. 3 is a system schematic diagram of a dual vacuum melting furnace according to one embodiment of the present application.

Reference numerals illustrate:

1-vacuum furnace cover: 11-charging valve

2-charging tower

3-a bracket of a charging tower;

4-a charging trolley;

5-vacuum melting furnace: 51-a hydraulic device; 52-a stove rack; 53-furnace body; 54-tilting means;

6-a chute car;

7-casting a valve;

8-a smelting furnace connecting cavity;

9-a chute cavity;

10-casting cavity

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be understood by those skilled in the art that the claimed utility model may be practiced without these specific details and with various changes and modifications from the embodiments that follow.

The vacuum melting system of the application is shown in fig. 1, and mainly comprises a furnace cover 1, a charging tower 2, a charging tower bracket 3, a charging trolley 4 and a vacuum melting furnace 5. The furnace cover 1 and the charging tower 2 are combined to form a movable horizontal walking charging device which is positioned on the charging tower bracket 3 and can realize one-dimensional movement along the extending direction of the charging tower bracket 3; meanwhile, the horizontal walking charging equipment can be fixedly connected with the furnace cover 1, and when the charging tower bracket 3 is carried on the furnace cover-capped vacuum smelting furnace 5, a passage from top to bottom charging device-furnace cover-furnace shell can be formed, so that charging is realized.

The furnace cover 1 is covered on the furnace body during vacuum melting to form vacuum. The top of the furnace cover 1 is integrated with a charging valve 11 at the joint of the charging tower and is used for controlling the communication and the disconnection between the vacuum smelting furnace body and the charging tower, and when the charging valve 11 is opened, a charging barrel in the charging tower can extend into the furnace body for charging.

The charging tower 2 has a cavity in which a charging device is accommodated. The charging device comprises a suspended charging barrel which can be displaced in the height direction, and a corresponding driving mechanism (such as a gear motor).

In an alternative embodiment, the charging tower further comprises a temperature measuring device, wherein the main component of the temperature measuring device is a temperature measuring sensor, and the temperature measuring device is retracted and released to enter the furnace body so as to measure the temperature. In an alternative embodiment, the temperature measuring speed reducing motor is connected with the temperature measuring sensor through a cable to provide power for the winding and unwinding of the temperature measuring device; and the temperature measuring sensor is controlled to lift in the vertical direction through components such as a wire coil, an electric slip ring, a temperature measuring limiter and the like. The temperature measuring sensor is fixedly connected with the temperature measuring head, is a temperature sensor and is used for detecting temperature signals in a furnace body extending into vacuum melting and transmitting suspension height signals.

In another embodiment, the vacuum induction furnace may be a rotary capped fed furnace. I.e. to move the furnace lid to the furnace body or from the furnace body in a rotating manner.

The tower carriage 3 is used for supporting the tower and comprises a one-dimensional extending rail on which the travelling charging device (tower + cover) can move. The charging tower support is of a fixed steel structure with a height, and the track is arranged on the support and limits the one-dimensional moving direction.

The charging trolley 4 is a trolley capable of moving to the vicinity of the furnace body, and is used in a vacuum furnace for efficiently charging the smelting furnace in an atmospheric state (when the furnace cover is not added).

The vacuum melting furnace 5 is a melting body. The front part of the furnace body is provided with a chute car channel, and other functional modules can be matched along the direction of the chute car channel. The hydraulic device 51 is used for locking the furnace cover 1 on the top of the vacuum melting furnace, so as to ensure the safety during tilting. The furnace frame 52 is used for supporting the vacuum smelting furnace body; the furnace body 53 is used for heating and melting the metal material. Tilting device 54 is used to control tapping and swinging of the vacuum melting furnace.

The chute car 6 contains a chute for transferring molten high temperature metal solution from the vacuum melting furnace 5 to the casting cavity 10.

The casting valve 7 is used for controlling the on-off between the vacuum smelting furnace 5 and the casting cavity 10 or the chute cavity 9.

The smelting furnace connecting cavity 8 connects the vacuum smelting furnace 5 and the casting valve 7.

The chute chamber 9 is used for storing the trolley.

The casting cavity 10 is a cavity for casting.

In order to better understand the technical solutions of the present application, the following description is given with reference to a specific example, in which details are listed mainly for the sake of understanding, and are not meant to limit the scope of protection of the present application.

Example 1,

The atmospheric charging state of the vacuum melting furnace is shown in fig. 1: at this time, the furnace cover 1 moves to a standby position along with the charging tower 2, namely, is not buckled on the furnace body. The mouth of the vacuum melting furnace 5 is in a horizontal state, and a charging trolley 4 for loading metal ingredients runs to a trolley charging position point near the vacuum melting furnace 5 along a platform planning route, so that the metal ingredients are added into the furnace body. The charging trolley 4 can charge materials back and forth for a plurality of times; after the feeding reaches the production requirement, the feeding trolley 4 runs to a waiting position far away from the furnace body.

The charging tower 2 is connected with the furnace cover 1 and moves to a working position together, namely, right above the furnace body. The charging tower 2 is separated from the furnace cover 1, the furnace cover is then locked to the furnace body by hydraulic means 51, the vacuum melting furnace chamber is closed, and subsequently the charging tower 2 can be moved back to the end remote from the furnace body, as shown in fig. 2.

After the vacuum smelting furnace finishes smelting and casting, after the cavity is broken, the lever of the hydraulic device 51 is recovered, the furnace cover is separated from the furnace body, at the moment, the charging tower 2 can be moved right above the furnace body again, connected with the vacuum furnace cover 1 and lifted, and then moved back to the waiting machine position, as shown in fig. 1.

EXAMPLE 2,

In this embodiment, the system includes 2 vacuum melting furnaces, as shown in FIG. 3. The system adopts a double-side chute car channel design, and the vacuum smelting furnace can comprise a translational type capped feeding type furnace and a rotary type capped feeding type furnace. The arrangement and operation of the translational vacuum melting furnace, furnace cover, charging tower and charging trolley are as described in example 1.

The casting cavity is arranged between two furnaces, a plurality of moulds to be poured are arranged in the cavity, and the two furnaces respectively control the molten liquid to be poured out of the furnace by a casting valve 7. Between the two furnaces there is a passage space for the passage of the chute car 6, which passage space extends along a chute track comprised therein, one of which ends is in communication with the smelting chamber, and the chute is in fluid connection with the smelting chamber when the chute car moves along the chute track to the end in communication with the smelting chamber. The chute car 6 can move between two vacuum melting furnaces, when one of the furnace bodies is melted, and molten iron is to be used for pouring, the chute car can move from the chute cavity 9 to the position between the furnace body and the casting cavity, and pouring is completed through a pouring opening in the channel space.

The vacuum smelting furnace is matched with functional modules to form a flexible system. The double vacuum melting furnaces are used for melting, degassing or pouring respectively, so that the production efficiency of the equipment is improved, and the productivity is improved.

It should be noted that in the present patent application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. In the present patent application, if it is mentioned that an action is performed according to an element, it means that the action is performed at least according to the element, and two cases are included: the act is performed solely on the basis of the element and is performed on the basis of the element and other elements. Multiple, etc. expressions include 2, 2 times, 2, and 2 or more, 2 or more times, 2 or more.

This specification includes combinations of the various embodiments described herein. Separate references to "one embodiment" or a particular embodiment, etc., do not necessarily refer to the same embodiment; however, unless indicated as mutually exclusive or as would be apparent to one of skill in the art, the embodiments are not mutually exclusive. It should be noted that the term "or" is used in this specification in a non-exclusive sense unless the context clearly indicates otherwise or requires otherwise.

All documents mentioned in the present application are considered to be included in the disclosure of the present application in their entirety, so that they may be subject to modification if necessary. Further, it will be understood that various changes or modifications may be made to the present application by those skilled in the art after reading the foregoing disclosure of the present application, and such equivalents are intended to fall within the scope of the present application as claimed.

Claims

1. A vacuum melting system, comprising: a vacuum induction furnace, a furnace cover, a charging tower bracket and a charging trolley, wherein,

the number of the vacuum induction furnaces is one or more;

2. The vacuum melting system of claim 1 wherein the charging means comprises a motor, a charging cartridge, a wire rope; wherein,

3. The vacuum melting system of claim 2 wherein the charging cartridge further comprises a temperature measuring device, the temperature measuring device comprising a sensor suspended from a cable that is driven by a motor to descend into or ascend out of the furnace through the passageway.

4. The vacuum melting system of claim 1 wherein the charging and/or temperature measuring device of the vacuum induction furnace is walking or rotary.

5. The vacuum melting system of claim 1 wherein one or more of the vacuum induction furnaces are rotary, and the charging tower is rotated by a drive force carrying the furnace cover or is displaced in a height direction so as to be connected to or removed from directly above the furnace.

6. The vacuum melting system of claim 1 wherein one or more of the vacuum induction furnaces are translational, the charging tower support includes a rail extending in one dimension, the rail including a first end located directly above the furnace shell and a second end remote from the furnace shell, and the charging tower travels along the rail directly above the furnace body or remote from the furnace body under a driving force.

7. The vacuum melting system of claim 1 wherein when the number of vacuum induction furnaces is 2, a casting cavity is provided between the two furnace bodies;

8. The vacuum melting system of claim 7 wherein the chute chamber is provided on one side of at least one vacuum induction furnace for storing the chute car.