Control device for melting atmosphere in electric melting furnace
By designing a melting atmosphere control device in the furnace with supporting base, thermal insulation shell, gas analyzer and other components, the existing furnaces are solved in the problem of high-temperature sealing and thermal insulation protection during use, and effective control and adjustment of the melting atmosphere in the furnace is achieved.
Patent Information
- Application Number
- CN202422194613.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The existing electric furnace is not convenient for high-temperature sealing and insulation protection of technicians during use, and is not convenient for controlling and adjusting the melting atmosphere in the electric furnace.
A control device for the melting atmosphere in the electric furnace is designed, including supporting base, furnace thermal insulation shell, thermal sealing cover, high-temperature resistant sealing gasket, electric furnace body, high-temperature resistant double-head conduit, nitrogen introduction joint, combustion-assisted gas introduction joint, gas analyzer and electrode heating controller. Through the coordinated arrangement of these components, the control and regulation of the melting atmosphere in the electric furnace is achieved, and high-temperature resistant sealing and thermal insulation protection are provided.
This device realizes effective control and regulation of the melting atmosphere in the electric furnace, provides high-temperature resistant sealing and heat insulation protection, and facilitates the use and operation of the electric furnace.
Smart Images
Figure CN223005305U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric melting furnaces, in particular to a control device for the melting atmosphere inside an electric melting furnace. Background Technique
[0002] An electric heating melting furnace is a metallurgical furnace that uses the electrothermal effect for heating. An electric furnace that uses the Joule heat generated by an electric current passing through a conductor as the heat source. According to the way of generating electric heat, electric heating melting furnaces are divided into two types: direct heating and indirect heating. In a direct heating electric melting furnace, the electric current directly passes through the material. Because the electric heating power is concentrated in the material itself, the material is heated very quickly, which is suitable for processes that require rapid heating, such as heating forging billets.
[0003] The existing electric melting furnace is not convenient for high-temperature sealing during use and for heat insulation protection of technicians, and is not convenient for controlling and adjusting the melting atmosphere inside the electric melting furnace. Therefore, the utility model provides a control device for the melting atmosphere inside an electric melting furnace. Content of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the utility model provides a control device for the melting atmosphere inside an electric melting furnace, which solves the problems put forward in the above background technique.
[0006] (2) Technical Solutions
[0007] To achieve the above purposes, the utility model provides the following technical solutions: A control device for the melting atmosphere inside an electric melting furnace includes a support base. The upper surface of the support base is fixedly connected with an electric melting furnace heat insulation outer shell. The edge of the upper surface of the electric melting furnace heat insulation outer shell is movably connected with a heat insulation sealing cover through a damping hinge. The inner side wall of the heat insulation sealing cover is fixedly connected with a high-temperature resistant sealing gasket. The inner bottom wall of the electric melting furnace heat insulation outer shell is fixedly connected with an electric melting furnace body. The outer side wall of the electric melting furnace body is fixedly connected with a high-temperature resistant double-headed conduit. One end of the high-temperature resistant double-headed conduit is fixedly connected with a nitrogen gas inlet joint, and the other end of the high-temperature resistant double-headed conduit is fixedly connected with a combustion-supporting gas inlet joint. On one side of the high-temperature resistant double-headed conduit on the outer side wall of the electric melting furnace body, there is a fixedly connected high-temperature resistant exhaust pipe. One end of the high-temperature resistant exhaust pipe is fixedly connected with a waste heat recovery device. The inside of the waste heat recovery device is provided with a high-temperature resistant gas impurity filter. Below the high-temperature resistant gas impurity filter, at the bottom of the waste heat recovery device, there is a fixedly connected smelting impurity discharge pipe. The bottom of the smelting impurity discharge pipe is fixedly connected with a smelting impurity collection box. The inner bottom wall of the smelting impurity collection box is inserted with a smelting impurity collection box. The outer side wall of the electric melting furnace heat insulation outer shell is fixedly connected with a gas analyzer.
[0008] Preferably, an electrode conductor is provided inside the electric melting furnace body. The material of the electrode conductor is a graphite electrode. The graphite electrode is externally connected to an electrode heating controller through a power line, and the electrode heating controller is fixedly connected to the outer surface of the heat insulation housing of the electric melting furnace.
[0009] Preferably, solenoid valves are provided inside the nitrogen inlet joint, the combustion-supporting gas inlet joint, and the high-temperature exhaust pipe.
[0010] Preferably, the bottoms of the nitrogen inlet joint and the combustion-supporting gas inlet joint are fixedly connected to a limit fixing frame, and the limit fixing frame is fixedly connected to the support base.
[0011] Preferably, the gas analyzer is fixedly connected to a high-temperature gas sensor through a power line, and the high-temperature gas sensor is fixedly connected to the upper end of the inner side wall of the electric melting furnace body.
[0012] Preferably, universal wheels are fixedly connected to the bottom of the support base. Brake pads are provided inside the universal wheels. An electric push rod is fixedly connected to one side of the universal wheels at the bottom of the support base, and a stabilizing pad is fixedly connected to the bottom of the electric push rod.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, the present utility model provides a control device for the melting atmosphere inside an electric melting furnace, having the following beneficial effects:
[0015] For the control device for the melting atmosphere inside the electric melting furnace, through the combined setting of the heat insulation housing of the electric melting furnace, the heat insulation sealing cover, the high-temperature resistant sealing gasket, and the electric melting furnace body, it plays a role of providing high-temperature resistance sealing for the electric melting furnace during use and heat insulation protection for technicians. Through the combined setting of the high-temperature resistant double-headed conduit, the nitrogen inlet joint, the combustion-supporting gas inlet joint, the gas analyzer, and the electrode heating controller, when in use, the electric melting furnace heats and smelts the substances inside the furnace through the electrode heating controller. Then, the atmosphere and the gas content ratio inside the furnace are observed through the gas analyzer, and then an appropriate amount of nitrogen or combustion-supporting gas is introduced correspondingly according to the gas content ratio to adjust the melting atmosphere inside the furnace, thereby playing a role of controlling and adjusting the melting atmosphere inside the electric melting furnace. Through the combined setting of the high-temperature resistant exhaust pipe, the waste heat recovery device, the smelting impurity discharge pipe, the smelting impurity collection box, and the smelting impurity collection box, it plays a role of recovering and utilizing the waste heat of the gas generated during smelting inside the electric melting furnace and filtering and collecting the impurities in the gas, facilitating the cleaning of the smelting gas impurities of the electric heating furnace by personnel. Through the combined setting of the universal wheels, the electric push rod, and the stabilizing pad, it is convenient for technicians to move or stably support the electric melting furnace as needed. Description of the Drawings
[0016] Figure 1This is a structural schematic diagram of the utility model.
[0017] In the figure: support base 1, electric furnace heat insulation shell 2, heat insulation sealing cover 3, high-temperature resistant sealing gasket 4, electric furnace body 5, high-temperature resistant double-headed conduit 6, nitrogen gas introduction joint 7, combustion-supporting gas introduction joint 8, high-temperature resistant exhaust pipe 9, waste heat recovery device 10, smelting impurity discharge pipe 11, smelting impurity collection box 12, smelting impurity collection box 13, gas analyzer 14, electrode heating controller 15, universal wheel 16, electric push rod 17, stable pad 18. Specific implementation manners
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0019] Please refer to Figure 1, the present utility model provides a technical solution: a control device for the melting atmosphere inside an electric furnace, including a support base 1. The upper surface of the support base 1 is fixedly connected with an electric furnace heat insulation outer shell 2. Through the cooperation of the electric furnace heat insulation outer shell 2, a heat insulation sealing cover 3, a high-temperature resistant sealing gasket 4 and an electric furnace body 5, it plays a role of providing high-temperature resistance sealing for the electric furnace during use and heat insulation protection for technicians. The edge of the upper surface of the electric furnace heat insulation outer shell 2 is movably connected with a heat insulation sealing cover 3 through a damping hinge. The inner side wall of the heat insulation sealing cover 3 is fixedly connected with a high-temperature resistant sealing gasket 4. The inner bottom wall of the electric furnace heat insulation outer shell 2 is fixedly connected with an electric furnace body 5. The outer side wall of the electric furnace body 5 is fixedly connected with a high-temperature resistant double-headed conduit 6. Through the cooperation of the high-temperature resistant double-headed conduit 6, a nitrogen gas introduction joint 7, a combustion-supporting gas introduction joint 8, a gas analyzer 14 and an electrode heating controller 15, when in use, the electric furnace heats and melts the substances inside the furnace through the electrode heating controller 15. Then, the atmosphere and the gas content ratio inside the furnace are observed through the gas analyzer 14. Then, an appropriate amount of nitrogen gas or combustion-supporting gas is introduced correspondingly according to the gas content ratio to adjust the melting atmosphere inside the furnace, thus playing a role of controlling and adjusting the melting atmosphere inside the electric furnace. One end of the high-temperature resistant double-headed conduit 6 is fixedly connected with a nitrogen gas introduction joint 7, and the other end of the high-temperature resistant double-headed conduit 6 is fixedly connected with a combustion-supporting gas introduction joint 8. On one side of the high-temperature resistant double-headed conduit 6 on the outer side wall of the electric furnace body 5, a high-temperature resistant exhaust pipe 9 is fixedly connected. Through the cooperation of the high-temperature resistant exhaust pipe 9, a waste heat recovery device 10, a melting impurity discharge pipe 11, a melting impurity collection box 12 and a melting impurity collection box 13, it plays a role of recovering and utilizing the waste heat of the gas generated during melting inside the electric furnace and filtering and collecting the impurities in the gas, facilitating the cleaning of the melting gas impurities of the electric furnace by personnel. One end of the high-temperature resistant exhaust pipe 9 is fixedly connected with a waste heat recovery device 10. Inside the waste heat recovery device 10, there is a high-temperature resistant gas impurity filter. Below the high-temperature resistant gas impurity filter, at the bottom of the waste heat recovery device 10, a melting impurity discharge pipe 11 is fixedly connected. The bottom of the melting impurity discharge pipe 11 is fixedly connected with a melting impurity collection box 12. The inner bottom wall of the melting impurity collection box 12 is inserted with a melting impurity collection box 13. The outer side wall of the electric furnace heat insulation outer shell 2 is fixedly connected with a gas analyzer 14. Inside the electric furnace body 5, there is an electrode conductor. The material of the electrode conductor is a graphite electrode. The graphite electrode is externally connected with an electrode heating controller 15 through a power line. The electrode heating controller 15 is fixedly connected with the outer surface of the electric furnace heat insulation outer shell 2. Solenoid valves are arranged inside the nitrogen gas introduction joint 7, the combustion-supporting gas introduction joint 8 and the high-temperature resistant exhaust pipe 9. The bottoms of the nitrogen gas introduction joint 7 and the combustion-supporting gas introduction joint 8 are both fixedly connected with a limit fixing frame. The limit fixing frame is fixedly connected with the support base 1. The gas analyzer 14 is fixedly connected with a high-temperature resistant gas sensor through a power line. The high-temperature resistant gas sensor is fixedly connected with the upper end of the inner side wall of the electric furnace body 5.The bottom of the support base 1 is fixedly connected with universal wheels 16. Through the cooperation of the universal wheels 16, electric push rods 17 and stabilizing pads 18, it is convenient for technicians to move or stably support the electric melting furnace as needed. A brake pad is arranged inside the universal wheels 16. One side of the universal wheels 16 at the bottom of the support base 1 is fixedly connected with an electric push rod 17, and the bottom of the electric push rod 17 is fixedly connected with a stabilizing pad 18.
[0020] In summary, for the control device of the melting atmosphere inside the electric melting furnace, through the combined setting of the heat-insulating outer shell 2, heat-insulating sealing cover 3, high-temperature resistant sealing pad 4 and the electric melting furnace body 5 of the electric melting furnace, it plays the role of providing high-temperature resistance sealing during the use of the electric melting furnace and heat insulation protection for technicians. Through the combined setting of the high-temperature resistant double-headed conduit 6, nitrogen inlet joint 7, combustion-supporting gas inlet joint 8, gas analyzer 14 and electrode heating controller 15, when in use, the electric melting furnace heats and smelts the substances inside the furnace through the electrode heating controller 15, and then observes the atmosphere and gas content ratio inside the furnace through the gas analyzer 14, and then imports an appropriate amount of nitrogen or combustion-supporting gas according to the gas content ratio to adjust the melting atmosphere inside the furnace, thus playing the role of controlling and adjusting the melting atmosphere inside the electric melting furnace. Through the combined setting of the high-temperature resistant exhaust pipe 9, waste heat recovery device 10, smelting impurity discharge pipe 11, smelting impurity collection box 12 and smelting impurity collection box 13, it plays the role of recovering and utilizing the waste heat of the gas generated during smelting inside the electric melting furnace and filtering and collecting the impurities in the gas, which facilitates the cleaning of the smelting gas impurities of the electric heating furnace by personnel. Through the combined setting of the universal wheels 16, electric push rods 17 and stabilizing pads 18, it is convenient for technicians to move or stably support the electric melting furnace as needed.
[0021] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0022] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.
[0023] Although the embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A device for controlling the melting atmosphere in an electric melting furnace, comprising a support base (1), characterized in that: The upper surface of the support base (1) is fixedly connected to an electric furnace insulation shell (2); an insulation sealing cover (3) is movably connected to the upper surface edge of the electric furnace insulation shell (2) via a damping hinge; an inner side wall of the insulation sealing cover (3) is fixedly connected to a high temperature resistant sealing pad (4); an inner bottom wall of the electric furnace insulation shell (2) is fixedly connected to an electric furnace body (5); an outer side wall of the electric furnace body (5) is fixedly connected to a high temperature resistant double-ended conduit (6); one end of the high temperature resistant double-ended conduit (6) is fixedly connected to a nitrogen inlet joint (7); the other end of the high temperature resistant double-ended conduit (6) is fixedly connected to a combustion-supporting gas inlet joint (8); and the outer side wall of the electric furnace body (5) is fixedly connected to a nitrogen inlet joint (7); and the other end of the high temperature resistant double-ended conduit (6) is fixedly connected to a combustion-supporting gas inlet joint (8). A high-temperature resistant smoke exhaust pipe (9) is fixedly connected to one side of the high-temperature resistant double-ended conduit (6) on the wall, and a waste heat recovery device (10) is fixedly connected to one end of the high-temperature resistant smoke exhaust pipe (9). A high-temperature resistant gas impurity filter is arranged inside the waste heat recovery device (10). A smelting impurity discharge pipe (11) is fixedly connected to the bottom of the waste heat recovery device (10) below the high-temperature resistant gas impurity filter. A smelting impurity collection box (12) is fixedly connected to the bottom of the smelting impurity discharge pipe (11). A smelting impurity collection box (13) is inserted into the inner bottom wall of the smelting impurity collection box (12). A gas analyzer (14) is fixedly connected to the outer wall of the heat-insulating outer shell (2) of the electric melting furnace.
2. The device for controlling the melting atmosphere in an electric melting furnace according to claim 1, characterized in that: An electrode conductor is arranged inside the electric melting furnace body (5), the material of the electrode conductor is a graphite electrode, the graphite electrode is externally connected to an electrode heating controller (15) via a power line, and the electrode heating controller (15) is fixedly connected to the outer surface of the electric melting furnace insulation shell (2).
3. The device for controlling the melting atmosphere in an electric melting furnace according to claim 1, characterized in that: Solenoid valves are provided inside the nitrogen inlet joint (7), the combustion-supporting gas inlet joint (8) and the high-temperature resistant smoke exhaust pipe (9).
4. The device for controlling the melting atmosphere in an electric melting furnace according to claim 1, characterized in that: The bottoms of the nitrogen inlet joint (7) and the combustion-supporting gas inlet joint (8) are both fixedly connected to a position-limiting fixing frame, and the position-limiting fixing frame is fixedly connected to the support base (1).
5. The device for controlling the melting atmosphere in an electric melting furnace according to claim 1, characterized in that: The gas analyzer (14) is fixedly connected to a high temperature resistant gas sensor via a power line, and the high temperature resistant gas sensor is fixedly connected to the upper end of the inner wall of the electric melting furnace body (5).
6. The device for controlling the melting atmosphere in an electric melting furnace according to claim 1, characterized in that: A universal wheel (16) is fixedly connected to the bottom of the support base (1), a brake pad is arranged inside the universal wheel (16), an electric push rod (17) is fixedly connected to one side of the universal wheel (16) at the bottom of the support base (1), and a stabilizing pad (18) is fixedly connected to the bottom of the electric push rod (17).