CN210570068U

CN210570068U - Smelting furnace stirring device

Info

Publication number: CN210570068U
Application number: CN201920790225.XU
Authority: CN
Inventors: 李新豪; 陈苏坚; 李升�; 李旭涛; 王永科
Original assignee: Guangzhou Zhiyuan New Material Technology Co ltd
Current assignee: Guangzhou Zhiyuan New Material Technology Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-05-19
Anticipated expiration: 2029-05-29

Abstract

The utility model relates to a smelting furnace stirring device, which comprises a stirring mechanism and a degassing mechanism, wherein the stirring mechanism is connected with the degassing mechanism; the degassing mechanism comprises an air inlet part, an air flow channel and an air outlet, the air inlet part is used for being connected with an air source, the air outlet is arranged at one end of the stirring mechanism facing the smelting furnace, one end of the air flow channel is connected with the air inlet part, the other end of the air flow channel is connected with the air outlet, and the air flow channel is further connected with the stirring mechanism. Through setting up the airflow channel who is connected with rabbling mechanism, and set up the venthole on the rabbling mechanism for inside gas can be carried to the melt in the smelting furnace from airflow channel, accomplish the degasification technology when realizing stirring even melt, thereby improve production efficiency.

Description

Smelting furnace stirring device

Technical Field

The utility model relates to a smelting pot technical field, in particular to smelting pot agitating unit.

Background

In the aluminum alloy smelting industry, in order to mix the alloy elements put into the molten aluminum alloy uniformly, a stirring process is generally adopted to fully mix the molten aluminum alloy so as to solve the problem of segregation of the alloy elements and make the temperature of the molten aluminum alloy in the melting furnace more uniform. Since the pinhole rate of the aluminum alloy product is increased due to the easy generation of gas inside the aluminum alloy melt, the gas inside the aluminum alloy melt needs to be discharged through a degassing process, for example, nitrogen or argon is introduced into the aluminum alloy melt to better discharge the gas. The existing stirring and degassing process is completed in two procedures, so that the production cost is improved, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a smelting pot agitating unit of stirring and degasification technology integral type.

The utility model adopts the technical proposal that the stirring device of the smelting furnace comprises a stirring mechanism and a degassing mechanism, wherein the stirring mechanism is connected with the degassing mechanism; the degassing mechanism comprises an air inlet part, an air flow channel and an air outlet, the air inlet part is used for being connected with an air source, the air outlet is arranged at one end, facing the smelting furnace, of the stirring mechanism, one end of the air flow channel is connected with the air inlet part, the other end of the air flow channel is connected with the air outlet, and the air flow channel is further connected with the stirring mechanism.

As a further improvement of the above embodiment, the stirring mechanism includes a driving device, a stirring shaft and a stirring head, the first end of the stirring shaft is connected to the driving device, the second end of the stirring shaft is connected to the stirring head, the air outlet is formed in the stirring head, the airflow channel is connected to the stirring shaft and extends along the axial direction of the stirring shaft, and the first end of the stirring shaft is further connected to the air inlet portion.

As a further improvement of the above embodiment, the stirring head includes a connecting portion and a stirring portion, the connecting portion is connected to the stirring shaft, the stirring portion is formed by extending one end of the connecting portion in a gradually-widening manner, and the air outlet is opened in the middle of the stirring portion.

As a further improvement of the above embodiment, the degassing mechanism includes a coupling, the first end of the stirring shaft is connected to the driving device through the coupling, the air inlet portion is disposed on the coupling, the air inlet portion is provided with a connector for connecting an air supply pipe, and the connector is communicated with the air flow channel.

As a further improvement of the above embodiment, the degassing mechanism further comprises a pressure sensor and a flow meter for connection with a controller of the furnace stirring apparatus, the pressure sensor and the flow meter being provided at a front end of the interface.

As a further improvement of the above embodiment, the furnace stirring device comprises a support and a lifting mechanism, wherein the support is installed at the top of the furnace, the lifting mechanism is installed on the support and connected with a controller of the furnace stirring device, and the stirring mechanism and the degassing mechanism are both installed on the lifting mechanism and are driven by the lifting mechanism to lift.

As a further improvement of the above embodiment, the lifting mechanism includes a rail, a lifting base, and a lifting wheel mounted on the lifting base, the rail includes a guide rail groove, and the lifting wheel is slidably engaged in the guide rail groove, so that the lifting base can slide along the rail; the stirring mechanism and the degassing mechanism are both arranged on the lifting machine base, and a heat insulation layer is arranged on one surface of the lifting machine base, which is in contact with the smelting furnace.

The furnace cover mechanism is arranged on the support and is connected with a controller of the stirring device of the smelting furnace, and the controller controls the furnace cover mechanism to open and close.

As a further improvement of the above embodiment, the furnace cover mechanism includes a furnace cover, a pull rod, a rotating shaft, a rotating lever and a cylinder, the pull rod, the rotating shaft, the rotating lever and the cylinder are respectively fixed at two ends of the furnace cover, the furnace cover is arranged on the stirring port of the melting furnace, the rotating shaft is arranged on the pull rod, two ends of the rotating shaft respectively penetrate through the two pull rods, the rotating lever is connected with the rotating shaft and respectively located at two ends of the rotating shaft, and the cylinder is connected with the controller and connected with the rotating shaft.

As a further improvement of the embodiment, the furnace stirring device further comprises an alarm, wherein the alarm is connected with a controller of the furnace stirring device, and the controller controls the alarm to give an alarm.

The utility model discloses a smelting pot agitating unit's degasification mechanism through set up with the airflow channel that rabbling mechanism connects, and set up the venthole on the rabbling mechanism for inside gas can be followed airflow channel and carried the melt to the smelting pot in, accomplish the degasification technology when realizing stirring melt, thereby improve production efficiency, reduction in production cost.

Drawings

The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intended to be drawn to scale in actual dimensions, emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is the schematic diagram of the idle state section of the stirring device of the melting furnace of the utility model:

FIG. 2 is a schematic view of the working state of FIG. 1;

FIG. 3 is a front view of a furnace cover mechanism of the stirring device of the melting furnace of the present invention;

fig. 4 is a top view of fig. 3.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 4, the utility model provides a smelting furnace agitating unit for install on smelting furnace 100, in this embodiment, smelting furnace 100 is the aluminum alloy smelting furnace, and its inside aluminum alloy melt that holds, smelting furnace agitating unit include controller (not shown), support 3, elevating system 4, rabbling mechanism 1, degasification mechanism 2, bell mechanism 5 and alarm (not shown), and rabbling mechanism 1, degasification mechanism 2, elevating system 4, bell mechanism 5 and alarm all are connected with the controller.

As shown in fig. 1 to 2, the controller is a PLC controller, which is a core of a stirring apparatus of the melting furnace 100 and controls the stirring mechanism 1, the degassing mechanism 2, the lifting mechanism 4, the furnace cover mechanism 5, and an alarm to be turned on and off, and in addition, the controller not only controls the movement of each mechanism, but also monitors various parameters and gives an alarm in real time. The bracket 3 is adapted to be mounted on the top of the melting furnace 100 and is fixedly mounted to the melting furnace 100 by means of screws or the like.

The lifting mechanism 4 is installed on the support 3 and is used for being connected with a PLC (programmable logic controller), the lifting mechanism 4 comprises a rail 41, a lifting machine base 42 and a lifting wheel 43 installed on the lifting machine base 42, the rail 41 comprises a guide rail groove (not shown), the lifting wheel 43 can be clamped into the guide rail groove in a sliding mode, and when the lifting mechanism 4 is opened, the lifting wheel 43 slides in the guide rail groove, so that the lifting machine base 42 can slide along the rail 41, and the lifting machine base 42 can move up and down. In this embodiment, in order to isolate the heat in the melting furnace 100, a thermal insulation layer 44 is disposed on the surface of the elevator base 42 contacting the melting furnace 100, and the thermal insulation layer 44 is made of a high temperature resistant material, such as asbestos, to protect the motor and the speed reducer of the stirring mechanism 1 from high temperature damage.

The stirring mechanism 1 and the degassing mechanism 2 are both installed on the lifting mechanism 4 and lifted under the driving of the lifting mechanism 4, and in this embodiment, the stirring mechanism 1 and the degassing mechanism 2 are both fixedly installed on the lifting base 42 and move up and down along with the lifting base 42.

The stirring mechanism 1 comprises a driving device (not shown), a stirring shaft 11 and a stirring head 12, wherein the first end (top end) of the stirring shaft 11 is connected with the driving device, the second end (bottom end) is connected with the stirring head 12, and the driving device is a stirring motor. Stirring head 12 includes connecting portion 122 and stirring portion 123, and connecting portion 122 is connected with (mixing) shaft 11 through the screw thread, and stirring portion 123 extends with gradually widening mode from the one end of connecting portion 122 and forms to reinforcing stirring effect. Because the furnace 100 is a high temperature environment, the stirring head 12 is made of a high temperature resistant material, such as graphite. In the present embodiment, the stirring portion 123 has a conical shape, and a diameter of one end connected to the connection portion 122 is smaller than a diameter of the other end not connected to the connection portion 122.

The degassing means 2 includes an air inlet 201, an air flow path 20, an air outlet 202, a coupling 21, a pressure sensor (not shown) and a flow meter (not shown) connected to a PLC controller. The air inlet portion 201 is used for connecting with an air source (not shown), and the air inlet portion 201 is also connected with the top end of the stirring shaft 11. The gas inlet part 201 is arranged on the ventilation coupling, is provided with a connector 211 used for being connected with a gas source and gas feeding pipe, the connector 211 is communicated with the gas flow channel 20 and is connected with a gas feeding pipe quick connector, so that nitrogen or argon flows into the gas flow channel 20 from the connector 211 and is then released into the aluminum alloy melt from the gas outlet hole 202. The gas flow channel 20 is used for conveying nitrogen or argon and is connected with the stirring mechanism 1, one end of the gas flow channel 20 is connected with the gas inlet portion 201, and the other end of the gas flow channel is connected with a gas outlet 202, and the gas outlet is arranged at one end of the stirring mechanism 1 facing the smelting furnace 100. Specifically, the gas flow passage 20 is connected to the stirring shaft 11 and extends in the axial direction of the stirring shaft 11. In this embodiment, the air flow channel 20 is a through hole, which is opened along the axial direction of the stirring shaft 11, and the air outlet 202 is opened at the middle of the stirring portion 123. In other embodiments, the gas flow channel 20 may also be a vent pipe disposed within the stirring shaft 11. The degassing mechanism 2 is provided with the gas flow channel 20 connected with the stirring mechanism 1, and the gas outlet 202 is arranged on the stirring mechanism 1, so that gas can be conveyed from the gas flow channel 20 to the interior of the molten liquid in the smelting furnace 100, and the degassing process is completed while the molten liquid is uniformly stirred.

The coupling 21 is a ventilation coupling, the top end of which is connected to the stirring motor, and the bottom end of which has a connection shaft (not shown) connected to the top end of the stirring shaft 11. Pressure sensor and flowmeter all locate the front end of interface 211 to detect the pressure and the flow of air current, and with pressure and flow data transmission to PLC controller, realize the real time monitoring of air current.

Because the top of the melting furnace 100 is provided with the stirring port 101 as a passage for the stirring head 12 to extend into the melting furnace 100, when the stirring process is not performed, the stirring port 101 needs to be closed to prevent fire or smoke from escaping from the stirring port 101, which causes air pollution and energy consumption loss, and therefore, in the present embodiment, the furnace cover mechanism 5 is arranged on the stirring port 101 to open and close the stirring port 101. Specifically, the furnace cover mechanism 5 is mounted on the support 3 and connected with the controller, and the controller controls the furnace cover mechanism 5 to be opened and closed so as to realize the automatic control of the furnace cover mechanism 5.

As shown in fig. 4, the furnace cover mechanism 5 includes a furnace cover 51, a pull rod 52 fixed at two ends of the furnace cover 51, a rotating shaft 53, a rotating lever 54 and a cylinder 55 for providing a power source, the furnace cover 51 is covered on the stirring port 101 of the furnace 100 (as shown in fig. 1), the rotating shaft 53 is mounted on the pull rod 52, and two ends of the rotating shaft 53 respectively penetrate through the two pull rods 52, one end of the rotating lever 54 is connected with the rotating shaft 53, the other end of the rotating lever 54 is rotatably mounted on the bracket 3 through a lever seat 56 and is located at two ends of the rotating shaft 53, respectively, wherein one end of the rotating lever 54 is rotatably connected with the lever seat 56 through a shaft (not shown), the cylinder 55 is connected with the PLC controller and the rotating shaft 53, so as to realize the control of the controller over the cylinder 55, the furnace cover 51 is automatically opened or closed through the cylinder 55, specifically, when the cylinder 55 rotates, the rotating lever 54 is driven, As shown in fig. 2).

The alarm (not shown) is used for being connected with the PLC, and the PLC controls the alarm to give an alarm. When the device of the melting furnace 100 works abnormally, the alarm gives an alarm, and at the moment, the PLC controller closes the automatic operation and opens the manual operation.

As shown in fig. 1 to fig. 2, when the molten aluminum alloy in the melting furnace 100 needs to be stirred, an operator only needs to press a start key of the PLC controller, and at this time, the PLC controller controls each mechanism of the stirring device of the melting furnace to work according to a predetermined work flow, which includes the following specific work flows: first, the lid 51 is opened by the air cylinder 55, and the lid 51 is moved to a predetermined position to open the stirring port 101. Then, the lifting motor (not numbered) is turned on to drive the lifting mechanism 4 to descend, and at the same time, the stirring head 12 is driven to descend into the melting furnace 100 from the stirring port 101, and the degassing system is turned on, at this time, the nitrogen or argon gas flow enters into the melting furnace 100 from the gas flow passage 20, and when the stirring head 12 descends to the preset stirring position, the descent is stopped. Then, a stirring motor (not numbered) is started to drive the stirring shaft 11 to rotate, at this time, the stirring head 12 rotates along with the stirring shaft 11 to stir the aluminum alloy melt in the melting furnace 100, and when the stirring process is finished, the stirring head 12 rises to a preset idle position and the degassing mechanism 2 is closed. Finally, the stirring port 101 is closed by driving the lid 51 by the air cylinder 55. Therefore, the whole process is controlled by the PLC, and the stirring process and the degassing process are integrated, namely, the stirring process is carried out while the degassing process is carried out, so that the automatic control is realized.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express the specific embodiments of the utility model, and the description thereof is specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A stirring device of a smelting furnace is characterized by comprising a stirring mechanism and a degassing mechanism, wherein the stirring mechanism is connected with the degassing mechanism; the degassing mechanism comprises an air inlet part, an air flow channel and an air outlet, the air inlet part is used for being connected with an air source, the air outlet is arranged at one end, facing the smelting furnace, of the stirring mechanism, one end of the air flow channel is connected with the air inlet part, the other end of the air flow channel is connected with the air outlet, and the air flow channel is further connected with the stirring mechanism.

2. The furnace stirring device according to claim 1, wherein the stirring mechanism comprises a driving device, a stirring shaft and a stirring head, a first end of the stirring shaft is connected with the driving device, a second end of the stirring shaft is connected with the stirring head, the gas outlet is formed in the stirring head, the gas flow channel is connected with the stirring shaft and extends in the axial direction of the stirring shaft, and the first end of the stirring shaft is further connected with the gas inlet.

3. The furnace stirring device according to claim 2, wherein the stirring head comprises a connecting portion connected to the stirring shaft and a stirring portion extending from one end of the connecting portion in a gradually widening manner, and the gas outlet is opened at a middle portion of the stirring portion.

4. The furnace stirring device according to claim 2, wherein the degassing mechanism comprises a coupling, the first end of the stirring shaft is connected with the driving device through the coupling, the gas inlet portion is arranged on the coupling, the gas inlet portion is provided with a connector for connecting a gas source and a gas delivery pipe, and the connector is communicated with the gas flow channel.

5. The furnace stirring apparatus of claim 4, wherein the degassing mechanism further comprises a pressure sensor and a flow meter for connection to a controller of the furnace stirring apparatus, the pressure sensor and the flow meter each being located at a forward end of the interface.

6. The furnace stirring device according to claim 1, comprising a frame and a lifting mechanism, wherein the frame is mounted on the top of the furnace, the lifting mechanism is mounted on the frame and connected to a controller of the furnace stirring device, and the stirring mechanism and the degassing mechanism are mounted on the lifting mechanism and are driven by the lifting mechanism to lift.

7. The furnace stirring device of claim 6, wherein the lifting mechanism comprises a rail, a lift base, and a lift wheel mounted on the lift base, the rail comprising a guide slot, the lift wheel slidably received in the guide slot such that the lift base can slide along the rail; the stirring mechanism and the degassing mechanism are both arranged on the lifting machine base, and a heat insulation layer is arranged on one surface of the lifting machine base, which is in contact with the smelting furnace.

8. The furnace stirring device according to claim 1, comprising a bracket and a cover mechanism for covering a stirring port of the furnace, wherein the bracket is mounted on the top of the furnace, and the cover mechanism is mounted on the bracket and connected to a controller of the furnace stirring device, and the controller controls the cover mechanism to open and close.

9. The furnace stirring device according to claim 8, wherein the furnace cover mechanism comprises a furnace cover, a pull rod fixed to each end of the furnace cover, a rotating shaft, a rotating lever and a cylinder, the furnace cover is arranged on the stirring port of the furnace, the rotating shaft is mounted on the pull rod, each end of the rotating shaft penetrates through each of the two pull rods, the rotating lever is connected to the rotating shaft and located at each end of the rotating shaft, and the cylinder is connected to the controller and connected to the rotating shaft.

10. The furnace stirring device of claim 1, further comprising an alarm, wherein the alarm is connected to a controller of the furnace stirring device, and wherein the controller controls the alarm to alarm.