CN115597372A

CN115597372A - Light alloy smelting system

Info

Publication number: CN115597372A
Application number: CN202211248568.6A
Authority: CN
Inventors: 陈强; 吴护林; 赵高瞻; 柴舒心; 邢志辉; 陶健全; 高诗情; 杜传航; 陈颖
Original assignee: Southwest Institute of Technology and Engineering of China South Industries Group
Current assignee: Southwest Institute of Technology and Engineering of China South Industries Group
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2023-01-13

Abstract

The invention belongs to the technical field of smelting systems, and provides a light alloy smelting system. The invention relates to a light alloy smelting system, which comprises: the furnace body comprises an upper furnace body and a lower furnace body, the upper furnace body is fixedly arranged on the lower furnace body, and the lower furnace body is provided with a material inlet and outlet, a detection port and a liquid outlet; the combustion mechanism comprises a fuel injection pipe, a natural gas pipe and a compressed gas pipe; the fuel spraying pipe is arranged in the fuel inlet and is communicated with the lower furnace body; the jet combustion pipe is a three-way pipe and is respectively communicated with the natural gas pipe and the compressed gas pipe; and the detection device is hermetically arranged on one side of the furnace body and extends into a detection port in the furnace body, and the detection device comprises an online hydrogen detector which is used for detecting the hydrogen content of the furnace melt. The light alloy smelting system provided by the invention has the advantages that the automation degree is improved, the manual operation is reduced, and the whole-process monitoring is realized.

Description

Light alloy smelting system

Technical Field

The invention relates to the technical field of smelting systems, in particular to a light alloy smelting system.

Background

The smelting system is used for smelting metal, so the smelting system usually works under the working conditions of high temperature and high pressure, and the smelting process needs to be continuously monitored in the traditional smelting process; in the detection process, manual operation is needed, so that on one hand, a smelting system needs to be started, and heat loss is caused; on the other hand, the detection result is inaccurate and continuous monitoring cannot be realized due to manual operation caused by severe working conditions;

therefore, in order to ensure the smelting efficiency; providing a light alloy smelting system; not only can realize continuously monitoring, but also can realize continuously monitoring the working condition of the smelting system under the condition that the smelting system is not started, and can also automatically operate without manual inspection.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a light alloy smelting system, which aims to improve the automation degree, reduce manual operation and realize whole-process monitoring.

The invention provides a light alloy smelting system, which comprises: the furnace body comprises an upper furnace body and a lower furnace body, the upper furnace body is fixedly arranged on the lower furnace body, and the lower furnace body is provided with a material inlet, a material outlet, a detection port and a material outlet; the material inlet and outlet are used for feeding and discharging materials to be smelted, and the liquid outlet is formed in one side below the lower furnace body and used for facilitating molten metal to flow out; the upper furnace body is provided with a fuel inlet; the combustion mechanism comprises a jet combustion pipe, a natural gas pipe and a compressed gas pipe; the fuel injection pipe is arranged in the fuel inlet and is communicated with the lower furnace body; the jet combustion pipe is a three-way pipe and is respectively communicated with the natural gas pipe and the compressed gas pipe; and the detection device is hermetically arranged on one side of the furnace body and extends into a detection port in the furnace body, and the detection device comprises an online hydrogen detector which is used for detecting the hydrogen content in the furnace body.

Further, the method also comprises the following steps: the feeding mechanism comprises a lifting platform, the lifting platform is arranged close to the material inlet and outlet direction, and the lifting platform is used for lifting the material. In practical application, the design is mainly used for conveniently lifting the materials to be smelted to the required height; because the material inlet and outlet are higher in the design process of the furnace body, the temperature loss in the furnace is less in the opening and closing process of the material inlet and outlet.

Further, still include the guide plate, the guide plate is installed outside the liquid outlet, the guide plate is used for the water conservancy diversion direction. In practical application, the purpose of the design is to realize that the molten metal can be conveniently guided to a required area.

Further, the combustion mechanism further comprises a heat insulator, wherein the heat insulator comprises a shell and a spiral accelerating pipe; the spiral accelerating tube is arranged in the shell, and two ends of the spiral accelerating tube are respectively connected with the compressed gas tube and communicated with the compressed gas tube. In practical application, the shell realizes the stability of internal and external installation, and the spiral accelerating tube plays a spiral centrifugal accelerating effect on gas passing through the spiral accelerating tube; the compressed gas passing through the burner tube is blown into the burner tube at high speed.

Furthermore, the furnace body still includes the removal load guide pulley, removal load guide pulley has four to the equipartition sets up the bottom of furnace body down. In practice, the purpose of the design is to facilitate the transfer of the smelting system to the desired area.

Further, the flow control device further comprises a flow control part, wherein the flow control part comprises a detection mechanism and an abutting plunger; the abutting plunger piston can be hermetically installed in the liquid outlet, and the detection mechanism is installed in the flow guide plate and extends upwards; the detection mechanism comprises a gantry, a detector and two rotating wheels; the detector is provided with sliding rails, and the sliding rails are positioned on two sides of the detector; the rotating wheel is arranged in the door frame and is abutted against the sliding rail; the rotating wheel is abutted against the sliding rail, and the lifting of the detector is realized under the rotation of the rotating wheel, and the detector is used for detecting the molten aluminum in a layered manner. In practical application, the design is to realize layered detection of molten aluminum, so that the quality stability of the molten aluminum generated by the monitoring smelting system can be ensured.

Further, the combustion mechanism further comprises a fan, wherein the fan is arranged on the compressed gas pipe, is communicated with the compressed gas pipe in the direction away from the heat insulator, is used for generating wind and supplies the wind for the compressed gas pipe. In practical application, the fan is mainly used for continuously providing wind power for the compressed gas pipe, and the wind power is ensured to be continuous.

Furthermore, the device also comprises an opening and closing door, wherein the opening and closing door is installed at the material inlet and outlet and is used for opening and closing the material inlet and outlet. In practical application, the design is realized by a cylinder in order to realize automatic control on and off; because this method is common, it will not be described herein.

The smoke guide hood is arranged above the opening and closing door; the smoke guide hood comprises a main hood and a smoke guide pipe; the main cover is arranged on the upper furnace body and positioned above the opening and closing door, and the smoke guide pipe is arranged in the main cover and communicated with the outside. In practical application, the purpose of the design is to ensure that smoke escaping from the furnace body can be effectively discharged.

Further, the detection device comprises a liquid level detection rod and a temperature detector; the liquid level detection rod and the temperature detector are installed at the detection port and are respectively used for detecting the liquid level and the temperature. In practical application, the design objective is to further improve the monitoring result.

According to the technical scheme, the light alloy smelting system provided by the invention has the beneficial effects that:

(1) In practical application, the furnace body is divided into an upper furnace body and a lower furnace body, and the upper furnace body and the lower furnace body are arranged in a sealing manner, so that effective sealing is realized, and heat loss is reduced; the design of a material inlet, a material outlet, a detection port and a material outlet is adopted, so that the inlet and the outlet of the material, the outflow of molten liquid metal and sealing monitoring are realized;

(2) The combustion mechanism is adopted, compressed gas and natural gas are combined, the pressure of the compressed gas is utilized, the natural gas is rapidly sent into the furnace body, the natural gas is ignited, and the combustion smelting effect is realized; meanwhile, the pressure of the compressed gas is reused, and the effect similar to the jet combustion of the air box is realized; and the compressed gas is also capable of providing oxygen for combustion;

(3) Meanwhile, the detection device is hermetically arranged in the detection port and is mainly used for detecting hydrogen in the furnace body; monitoring the smelting process of the furnace body by monitoring hydrogen; the monitoring method is common in the industry, and therefore is not described in detail.

Drawings

In order to more clearly illustrate the embodiments of the present invention, reference will now be made briefly to the embodiments or to the accompanying drawings that are needed in the description of the prior art. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

Fig. 1 is a schematic perspective view of a light alloy smelting system according to an embodiment of the present invention;

FIG. 2 is a left side view of a light alloy melting system according to an embodiment of the present invention;

FIG. 3 is a top view of a light alloy melting system according to an embodiment of the present invention;

reference numerals:

the device comprises a furnace body 1, an upper furnace body 11, a lower furnace body 12, a material inlet and outlet 121, a detection port 122, a liquid outlet 123, a movable load guide wheel 13, a combustion mechanism 2, a flame spraying pipe 21, a natural gas pipe 22, a compressed gas pipe 23, a fan 24, a detection device 3, an online hydrogen measuring instrument 31, a liquid level detection rod 32, a temperature detector 33, a feeding mechanism 4, a lifting platform 41, a guide plate 5, a heat insulator 6, a shell 61, a spiral accelerating pipe 62, a flow control part 7, a detection mechanism 71, an abutting plunger 72, a gantry 711, a sliding rail 7110, a detector 712, a rotating wheel 713, an opening and closing door 8, a smoke guide hood 9, a main hood 91 and a smoke guide pipe 92.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

The embodiment is basically as shown in the attached figures 1 to 3:

example 1:

as shown in fig. 1 to fig. 3, the light alloy melting system provided in this embodiment is used to improve the automation degree, reduce manual operations, and implement full-process monitoring.

The invention provides a light alloy smelting system, which comprises: the furnace body 1 comprises an upper furnace body 111 and a lower furnace body 121, wherein the upper furnace body 111 is fixedly arranged on the lower furnace body 121, and the lower furnace body 121 is provided with a material inlet/outlet 121, a detection port 122 and a liquid outlet 123; the material inlet and outlet 121 is used for feeding and discharging materials to be smelted, and the liquid outlet 123 is arranged on one side below the lower furnace body 121 and is used for facilitating molten metal to flow out; the upper furnace body 111 has a fuel inlet; a combustion mechanism 2, the combustion mechanism 2 comprising a flame jet pipe 21, a natural gas pipe 22 and a compressed gas pipe 23; the fuel injection pipe 21 is arranged in the fuel inlet and is communicated with the lower furnace body 121; the jet combustion pipe 21 is a three-way pipe, and the jet combustion pipe 21 is respectively communicated with the natural gas pipe 22 and the compressed gas pipe 23; and the detection device 3 is hermetically arranged on one side edge of the furnace body 1 and extends into the detection port 122 in the furnace body 1, the detection device 3 comprises an online hydrogen meter 31, and the online hydrogen meter 31 is used for detecting the hydrogen content in the furnace body 1. In practical application, the furnace body 1 is divided into the upper furnace body 111 and the lower furnace body 121, and the upper furnace body and the lower furnace body are arranged in a sealing manner, so that effective sealing is realized, and heat loss is reduced; the design of the material inlet and outlet 121, the detection port 122 and the liquid outlet 123 is adopted, so that the inlet and outlet of materials, the outflow of molten liquid metal and the sealing monitoring are realized; the adopted combustion mechanism 2 combines compressed gas and natural gas, utilizes the pressure of the compressed gas to quickly feed the natural gas into the furnace body 1, ignites the natural gas and realizes the combustion smelting effect; meanwhile, the pressure of the compressed gas is reused, and the effect similar to the jet combustion of the air box is realized; and the compressed gas is also capable of providing oxygen for combustion; meanwhile, the detection device 3 is hermetically arranged in the detection port 122 and is mainly used for detecting hydrogen in the furnace body 1; monitoring the smelting process of the furnace body 1 by monitoring hydrogen; the monitoring method is common in the industry, and therefore is not described in detail. Further, the method also comprises the following steps: the feeding mechanism 4 comprises a lifting platform 41, the lifting platform 41 is installed in the direction close to the material inlet and outlet 121, and the lifting platform 41 is used for lifting materials. In practical application, the design is mainly used for conveniently lifting the materials to be smelted to the required height; because the material inlet and outlet 121 is higher in the design process of the furnace body 1, the temperature loss in the furnace is less in the opening and closing process of the material inlet and outlet.

In this embodiment, further include guide plate 5, guide plate 5 install outside liquid outlet 123, guide plate 5 is used for the water conservancy diversion direction. In practical application, the purpose of the design is to realize that the molten metal can be conveniently guided to a required area.

In the present embodiment, the combustion mechanism 2 further includes a heat insulator 6, and the heat insulator 6 includes a housing 61 and a spiral acceleration pipe 62; the spiral acceleration pipe 62 is installed in the housing 61, and both ends thereof are connected to and communicated with the compressed gas pipe 23, respectively. In practical application, the casing 61 realizes the stability of internal and external installation, and the spiral accelerating tube 62 plays a spiral centrifugal accelerating effect on gas passing through the spiral accelerating tube; the compressed gas passing therethrough is blown at high speed into the burner tube 21.

In this embodiment, the furnace body 1 further includes four movable load guide wheels 13, and the movable load guide wheels 13 are uniformly arranged at the bottom of the lower furnace body 121. In practice, the purpose of the design is to facilitate the transfer of the smelting system to the desired area.

In the present embodiment, the present invention further includes a flow rate control portion 7, and the flow rate control portion 7 includes a detection mechanism 71 and an abutment plunger 72; the abutting plunger 72 is sealably installed in the liquid outlet 123, and the detection mechanism 71 is installed in the flow guide plate 5 and extends upward; the detection mechanism 71 comprises a gantry 711, a detector 712 and two rotating wheels 713; the detector 712 has a sliding rail 7110, and the sliding rail 7110 is located at both sides of the detector 712; the rotating wheel 713 is mounted inside the gantry 711, and the rotating wheel 713 abuts against the sliding rail 7110; the rotating wheel 713 abuts against the sliding rail 7110, and the detector 712 is lifted and lowered under the rotation of the rotating wheel 713, wherein the detector 712 is used for detecting the molten aluminum layer by layer. In practical application, the design is to realize layered detection of molten aluminum, so that the quality of the molten aluminum generated by the smelting system can be monitored.

In this embodiment, the combustion mechanism 2 further includes a fan 24, and the fan 24 is installed on the compressed gas pipe 23, communicates with the compressed gas pipe 23 in a direction away from the insulator 6, and generates wind to supply the compressed gas pipe 23 with the wind. In practical application, the fan 24 is mainly used for continuously supplying wind power to the compressed gas pipe 23, so that the wind power is ensured to be continuous.

In this embodiment, the device further includes an opening and closing door 8, and the opening and closing door 8 is installed at the material inlet/outlet 121 and is used for opening and closing the material inlet/outlet 121. In practical application, the design is realized by a cylinder in order to realize automatic control on and off; because this method is common, it will not be described herein.

In the embodiment, the smoke guide hood 9 is further included, the smoke guide hood 9 is installed above the opening and closing door 8, and the smoke guide hood 9 is installed above the opening and closing door 8; the smoke guide hood 9 comprises a main hood 91 and a smoke guide pipe 92; the main cover 91 is installed on the upper furnace body 111 and located above the opening and closing door 8, and the smoke guide pipe 92 is installed in the main cover 91 and communicated with the outside. In practice, the purpose of this design is to ensure that the fumes escaping from the furnace body 1 are effectively exhausted.

In the present embodiment, the detection device 3 includes a liquid level detection rod 32 and a temperature detector 33; the liquid level detection rod 32 and the temperature detector 33 are installed at the detection port 122 and are respectively used for detecting the liquid level and the temperature. In practical application, the design purpose is to further improve the monitoring result; and meanwhile, the liquid level and the temperature are respectively monitored, so that the solidification of the molten metal in the flowing process is reduced.

In actual work, firstly, a metal material to be smelted is placed on the lifting platform 41, and the lifting platform 41 is adjusted to be lifted to the direction of the material inlet and outlet 121 of the lower furnace body 121; then opening the opening and closing door 8, pushing the metal material to be smelted into the material inlet and outlet 121 from the lifting platform 41, and entering the furnace body 1; then the opening and closing door 8 is closed; at this time, the fan 24 is started, and the natural gas pipe 22 and the compressed gas pipe 23 are opened in the direction of the flame injection pipe 21; enabling natural gas and compressed gas to enter the furnace body 1, and then igniting the natural gas, so that the flame jet pipe 21 faces towards the inner direction of the furnace body 1 to form high-temperature flame; after the metal material to be smelted is smelted into liquid by high-temperature flame; finally, the liquid is discharged through a liquid outlet 123 and a detection mechanism 71; meanwhile, in the monitoring device, an online hydrogen measuring instrument 31 monitors the hydrogen content in the furnace body 1, and a liquid level detecting rod 32 detects the liquid level height and the temperature of the metal solution, and a detector 33 is respectively arranged.

To sum up, this light alloy system of smelting, not only reasonable in design, easy operation moreover can effectual reduction manual operation to adopted detection device 3 can realize real-time supervision, has guaranteed the practicality, very big improvement the automatic operation degree, consequently be applicable to the trade and promote.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being covered by the appended claims and their equivalents.

Claims

1. A light alloy melting system, comprising:

the furnace body comprises an upper furnace body and a lower furnace body, the upper furnace body is fixedly arranged on the lower furnace body, and the lower furnace body is provided with a material inlet and outlet, a detection port and a liquid outlet; the material inlet and outlet are used for feeding and discharging materials to be smelted, and the liquid outlet is formed in one side below the lower furnace body and used for facilitating molten metal to flow out; the upper furnace body is provided with a fuel inlet;

the combustion mechanism comprises a jet combustion pipe, a natural gas pipe and a compressed gas pipe; the fuel spraying pipe is arranged in the fuel inlet and is communicated with the lower furnace body; the jet combustion pipe is a three-way pipe and is respectively communicated with the natural gas pipe and the compressed gas pipe; and

the detection device is arranged on one side edge of the furnace body in a sealing mode and extends into a detection port in the furnace body, and the detection device comprises an online hydrogen measuring instrument which is used for detecting the hydrogen content in the furnace body.

2. A light alloy smelting system according to claim 1, further comprising: the feeding mechanism comprises a lifting platform, the lifting platform is arranged close to the material inlet and outlet direction, and the lifting platform is used for lifting the material.

3. The light alloy melting system of claim 1, further comprising a deflector mounted outside the liquid outlet, the deflector being configured for flow directing.

4. A light alloy smelting system according to claim 1, wherein said combustion mechanism further includes a thermal insulator comprising a shell and a spiral acceleration tube; the spiral accelerating tube is arranged in the shell, and two ends of the spiral accelerating tube are respectively connected with the compressed gas tube and communicated with the compressed gas tube.

5. The light alloy smelting system according to claim 1, wherein the furnace body further comprises four movable load guide wheels which are uniformly arranged at the bottom of the lower furnace body.

6. A light alloy smelting system according to claim 3, further comprising a flow control section including a detection mechanism and an abutment plunger; the abutting plunger piston can be hermetically installed in the liquid outlet, and the detection mechanism is installed in the flow guide plate and extends upwards; the detection mechanism comprises a gantry, a detector and two rotating wheels; the detector is provided with sliding rails, and the sliding rails are positioned on two sides of the detector; the rotating wheel is arranged in the door frame and is abutted against the sliding rail; the rotating wheel is abutted against the sliding rail, and the lifting of the detector is realized under the rotation of the rotating wheel, and the detector is used for detecting the molten aluminum in a layered manner.

7. A light alloy smelting system according to claim 4, wherein said combustion means further includes a fan mounted on said compressed gas duct and communicating with said compressed gas duct in a direction away from said insulator for generating wind to blow said compressed gas duct.

8. The light alloy melting system of claim 1, further comprising an opening and closing door mounted at the material inlet and outlet for opening and closing the material inlet and outlet.

9. A light alloy smelting system according to claim 8, further comprising a fume hood mounted above the shutter; the smoke guide hood comprises a main hood and a smoke guide pipe; the main cover is arranged on the upper furnace body and positioned above the opening and closing door, and the smoke guide pipe is arranged in the main cover and communicated with the outside.

10. A light alloy smelting system according to claim 1, wherein said detection means includes a liquid level detection bar and a temperature detector; the liquid level detection rod and the temperature detector are installed at the detection port and are respectively used for detecting the liquid level and the temperature.