Sealed feeding safety protection device for crude magnesium refining production

Abstract

The utility model provides a safety protection device for sealed feeding in crude magnesium refining production, which comprises a refining furnace provided with a feeding port; the sealing connecting piece is arranged at the position of the feeding opening; the lower end of the siphon is connected with the sealing connecting piece and can feed materials into the refining furnace; and the siphon and the sealing connecting piece are sealed at the joint to prevent air from entering the refining furnace. According to the sealing feeding safety protection device for crude magnesium refining production, due to the design of the sealing connecting piece and the siphon, the problems of safety and product quality in the crude magnesium refining production process are effectively solved, the production efficiency is improved, and the sealing feeding safety protection device has good application prospects and economic benefits.

Description

Technical Field

[0001] The utility model relates to the technical field of nonferrous metal smelting, in particular to a sealing and feeding safety protection device for crude magnesium refining production. Background Art

[0002] At present, there are two main methods for magnesium refining: the Pijiang method with the addition of refining agents and the static sedimentation method. In the process of crude magnesium refining, liquid crude magnesium needs to be added to the refining furnace first, and argon is filled in during this process to prevent the entry of outside air. However, in the process of discharging liquid magnesium, there is a large gap between the feeding port and the siphon tube, which are kept open. When the siphon tube is lifted by a crane to go deep into the feeding port to add liquid magnesium, it is easy to cause air intake due to breathing. Liquid magnesium is active and easy to react with air at high temperature to generate polluted products such as magnesium oxide and magnesium nitride. The nitrogen content of the contaminated product will fluctuate greatly, and the increase in nitrogen content is easy to form nitride defects. During arc melting of products containing nitrides, nitrides may remain in the form of fragments or powder, forming defects in the ingot. At the same time, in the process of adding liquid magnesium, argon is used to pressurize. Due to the pressure, the high-temperature liquid in the siphon tube has a faster flow rate. If the operation is improper, it will splash outward from the open part of the feeding port, which poses a safety hazard and may cause harm to the operator.

[0003] The traditional method of preventing air ingress is to inject inert gas into the refining furnace to maintain positive pressure and reduce the possibility of air ingress. However, in actual operation, positive pressure is difficult to control due to internal liquid level fluctuations, system leakage, etc. To ensure that the positive pressure is maintained throughout the process, complex system control and monitoring are required. In addition, since the subsequent product will be used to react with titanium tetrachloride to produce sponge titanium, and the quality of sponge titanium products is crucial for many industrial applications, the problem of air ingress has become more and more of a concern. Utility Model Content

[0004] In view of this, the utility model aims to propose a sealed feeding safety protection device for crude magnesium refining production to prevent air from entering when adding liquid magnesium, thereby avoiding product contamination and reducing potential safety risks.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A sealing and feeding safety protection device for crude magnesium refining production, comprising:

[0007] A refining furnace, wherein a charging port is arranged on the refining furnace;

[0008] A sealing connector, arranged at the position of the feeding port;

[0009] a siphon tube, the lower end of which is connected to the sealing connection piece and capable of feeding the refining furnace;

[0010] The siphon tube and the sealing connector are sealed at the connection point to prevent air from entering the interior of the refining furnace.

[0011] Furthermore, the siphon tube and the sealing connector are sealed and connected from top to bottom using a funnel-type sealing structure.

[0012] Furthermore, the sealing connection piece includes a wide-mouth portion, a column portion, and a flange connection portion from top to bottom, and the flange connection portion is used for sealing the connection flange around the charging port on the refining furnace.

[0013] Furthermore, a sealing plug is provided on the siphon tube, and the sealing plug is sealingly matched with the wide mouth portion of the sealing connector.

[0014] Furthermore, a lifting ring is provided on the upper connecting flange of the charging port on the refining furnace.

[0015] Furthermore, the lifting rings are provided in plurality and are evenly distributed on the circumference of the upper connecting flange.

[0016] Furthermore, an argon filling pressure measuring port is provided on the upper connecting flange of the refining furnace.

[0017] Furthermore, an intelligent sensing device is provided on the sealing connector, and the intelligent sensing device can monitor the change of vacuum degree in real time during the feeding process, and send an alarm signal to the system when an abnormality is detected.

[0018] Compared with the prior art, the sealing and feeding safety protection device for crude magnesium refining production described in the utility model has the following advantages:

[0019] (1) The sealed feeding safety protection device for crude magnesium refining production described in the utility model effectively solves the safety and product quality problems in the crude magnesium refining production process through the design of the sealing connector and the siphon tube, improves the production efficiency, and has good application prospects and economic benefits.

[0020] (2) The sealed feeding safety protection device for crude magnesium refining production described in the utility model successfully solves the problem of air pollution during the process of adding liquid magnesium in crude magnesium refining. When using this device, the quality of the final product is significantly improved, the product is greatly contaminated by air, and the operation process is safe and reliable.

[0021] (3) The sealed feeding safety protection device for crude magnesium refining production described in the utility model has a simple structure and is easy to operate, which can meet the needs of industrial production and is of great significance for improving product quality and reducing potential safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the sealing and feeding safety protection device for crude magnesium refining production according to an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the assembly structure of the sealing and feeding safety protection device for crude magnesium refining production according to an embodiment of the utility model;

[0025] Description of reference numerals:

[0026] 1- siphon; 2- sealing plug; 3- sealing connector; 301- wide mouth; 302- column; 303- flange connection; 4- feeding port; 5- lifting ring; 6- refining furnace; 7- argon filling pressure measuring port. DETAILED DESCRIPTION

[0027] In order to make the technical means, objectives and effects of the present invention easy to understand, the embodiments of the present invention are described in detail below with reference to specific drawings.

[0028] It should be noted that all terms used in the present invention for directional and positional indications, such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", "top", "lower", "lateral", "longitudinal", "center", etc., are only used to explain the relative positional relationship and connection conditions between the components in a certain state (as shown in the accompanying drawings), and are only for the convenience of describing the present invention, rather than requiring the present invention to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0031] like Figures 1-2 As shown, the present application discloses a sealing and charging safety protection device for crude magnesium refining production, comprising:

[0032] A refining furnace 6, on which a feeding port 4 is arranged;

[0033] A sealing connection member 3, arranged at the position of the feeding port 4;

[0034] a siphon 1, the lower end of which is connected to a sealing connection 3 and capable of feeding into a refining furnace 6;

[0035] The siphon tube 1 and the sealing connector 3 are sealed at the connection point to prevent air from entering the interior of the refining furnace 6 .

[0036] The sealed charging safety protection device for crude magnesium refining production disclosed in the present application is that when liquid crude magnesium needs to be added to the refining furnace 6, the lower end of the siphon tube 1 is connected to the charging port 4 through the sealing connector 3. The sealing connector 3 ensures that the connection between the siphon tube 1 and the charging port 4 is sealed to prevent air from entering the interior of the refining furnace 6 from the connection. The operator can safely transport the liquid crude magnesium to the refining furnace 6 through the siphon tube 1 without worrying about safety issues such as gas entering the system or splashing.

[0037] The sealed feeding safety protection device for crude magnesium refining production described in the present application effectively solves the safety and product quality problems in the crude magnesium refining production process through the design of sealed connectors and siphon tubes, improves production efficiency, and has good application prospects and economic benefits.

[0038] As a preferred example of the present application, the siphon tube 1 and the sealing connector 3 are sealed from top to bottom using a funnel-type sealing structure. The funnel-type sealing structure can provide a larger contact area and a better sealing effect, effectively preventing air from entering the interior of the refining furnace from the connection. At the same time, the sealing performance of the connection under this structure is more stable, thereby reducing the possibility of system leakage, which can more reliably protect the liquid crude magnesium from reacting with the air, thereby ensuring product quality and production safety.

[0039] The arrangement uses a siphon tube and a sealing connector that are sealed and connected by a funnel-type sealing structure, which can provide a more reliable, safer and more efficient crude magnesium refining production process and help improve product quality and production efficiency.

[0040] As a preferred example of the present application, the sealing connector 3 includes a wide mouth portion 301, a column portion 302, and a flange connection portion 303 from top to bottom, and the flange connection portion 303 is used for sealing the connection flange around the charging port 4 on the refining furnace 6. In the example of the present application, the wide mouth portion 301 at the upper end of the sealing connector 3 is processed with a certain slope, and the column portion 302 in the middle part is made of a metal bellows, which has a certain margin of activity, so that the siphon tube 1 can be connected to it during the crane hoisting process. The bottom is the flange connection portion 303, which is fixed and sealed with the connection flange on the charging port 4 by bolts.

[0041] This arrangement improves the adaptability, stability and safety of the sealing connector 3, thereby effectively solving the problems of vibration, distortion, overflow and leakage that may occur during the liquid magnesium feeding process, ensuring the smooth progress of the crude magnesium refining production process and improving the safety of operators.

[0042] As a preferred example of the present application, a sealing plug 2 is provided on the siphon tube 1, and the sealing plug 2 is sealed with the wide mouth portion 301 of the sealing connector 3. By providing a funnel-shaped sealing plug 2 on the outside of the siphon tube 1, it can be tightly matched with the wide mouth portion 301 of the sealing connector 3, so that the siphon tube 1 and the sealing connector 3 can be tightly assembled, achieving the effects of enhancing sealing performance, tight assembly, and simplifying the operation process, thereby effectively improving the safety and quality stability in the crude magnesium refining production process.

[0043] As an example of the present application, a lifting ring 5 is provided on the upper connecting flange of the refining furnace 6 where the charging port 4 is provided. Preferably, a plurality of lifting rings 5 ​​are provided, for example, three, which are evenly distributed on the circumference of the upper connecting flange.

[0044] By arranging a plurality of evenly distributed lifting rings 5 ​​on the upper connecting flange of the refining furnace 6, a convenient lifting method can be provided, safety can be enhanced, equipment wear can be reduced, and operating efficiency can be improved, thereby improving the efficiency and safety of the charging operation during the crude magnesium refining production process. This is a preferred design during the crude magnesium refining production process.

[0045] As a preferred example of the present application, an argon filling pressure measuring port 7 is provided on the upper connecting flange on the refining furnace 6 .

[0046] This setting can realize the argon filling pressure measurement function by setting an argon filling pressure measuring port on the upper connecting flange on the refining furnace, maintain the positive pressure state, and improve the convenience of operation, thereby effectively improving the atmosphere control and product quality management in the crude magnesium refining production process.

[0047] As a preferred example of the present application, an intelligent sensing device is provided on the sealing connector 3, and the intelligent sensing device can monitor the change of vacuum degree in real time during the feeding process, and send an alarm signal to the system when an abnormality is detected.

[0048] This arrangement, by providing an intelligent sensing device on the sealing connector 3, can achieve real-time monitoring and alarm functions, improve the stability and reliability of the sealing device, while reducing safety risks, and provide effective protection for the safe operation of the crude magnesium refining production process.

[0049] The sealed charging safety protection device for crude magnesium refining production described in the present application adopts a funnel-type assembly device to prevent air from entering the refining furnace 6 from the charging port 4, thereby reducing the possibility of reaction between the product and nitrogen and oxygen in the air, thereby reducing the generation of additional products and improving the utilization rate of raw materials.

[0050] (1) The funnel-type assembly device comprises three parts: a siphon tube 1, a sealing plug 2, and a sealing connector 3.

[0051] Siphon 1: used to transfer high-temperature liquid magnesium.

[0052] Sealing plug 2: Sealing function. In order to ensure the sealing performance, the sealing plug is made of fluororubber. Fluororubber has excellent high temperature resistance while ensuring sealing, effectively preventing the erosion of high temperature liquid magnesium on the sealing plug. The plug is connected with the siphon for sealing.

[0053] Sealing connector 3: The upper part is processed with a wide-mouth portion 301 with a certain slope, which is used for feeding sealing together with the sealing plug 2. The column portion 302 in the middle is made of a metal bellows. The bellows has a certain amount of free space, which is convenient for the siphon tube 1 to dock with it during the overhead crane lifting process. The bottom is a flange connection portion 303, which is fixed and sealed with the connecting flange on the feeding port 4 by bolts. This structure can not only adapt to the vibration and distortion during the liquid magnesium feeding process, but also ensure that the sealing connector 3 maintains a stable structure in a high temperature environment. To ensure safe operation, the upper wide-mouth portion 301 of the sealing connector 3 is processed with a certain slope. This design helps to prevent liquid magnesium from overflowing during the feeding process and reduce accidental risks. In addition, the connection between the flange connection portion 303 and the feeding port 4 is fixed and sealed by bolts, which increases the stability of the connection and prevents leakage during operation.

[0054] In the present application, in the example of the present application, the sealing connector 3 is made of high temperature resistant alloy to ensure that it maintains a stable structure in a high temperature reaction environment. At the same time, it is equipped with an intelligent sensing device, which can monitor the changes in vacuum degree in real time during the feeding process, so as to ensure the stability and reliability of the sealing device. The intelligent sensing device is not only used to monitor the changes in vacuum degree, but also has an abnormal alarm function. During operation, once the sealing is detected to be abnormal, the system will promptly issue an alarm to remind the operator and take corresponding safety measures, thereby effectively reducing potential safety risks.

[0055] (2) Equipment operation process and function introduction

[0056] Step 1: When preparing to perform refining of crude magnesium and adding liquid magnesium, the sealing connector 3 is connected and fixed to the feed port 4 via the flange connection portion 303 .

[0057] Step 2: The staff moves the siphon tube 1 connected to the ladle and equipped with the sealing plug 2 to the refining furnace 6, and moves the siphon tube 1 to the central axis of the sealing connector 3.

[0058] Step 3: Combine the sealing plug 2 and the sealing connector 3 to form a sealed protection area to prevent air from entering the interior of the refining furnace 6 from the charging port. This step involves the cooperation of the sealing plug 2 and the sealing connector 3 to form a sealed protection area. The purpose of this step is to ensure good sealing performance before adding liquid magnesium and reduce potential safety hazards during operation.

[0059] Step 4: Argon is introduced into the ladle, and the high-temperature liquid magnesium passes through the siphon 1 under the action of the argon pressure and enters the refining furnace 6.

[0060] Step 5: After the addition of liquid magnesium is completed, the bolt connection of the flange connection part 303 is released and the device is taken out.

[0061] Step 6: After the feeding is completed, the device returns to its initial state, waits for the next operation, and repeats steps 1-6.

[0062] Through this application, the sealed feeding safety protection device for crude magnesium refining production described in this application can effectively prevent liquid magnesium from contacting the air, and successfully solve the problem of air pollution during the process of adding liquid magnesium in crude magnesium refining. Experiments have shown that when this device is used, the quality of the final product is significantly improved, the product is greatly polluted by air, and the operation process is safe and reliable. The device has a simple structure and is easy to operate, and can meet the needs of industrial production.

[0063] In summary, the present application provides a sealed feeding safety protection device for crude magnesium refining production, which has significant practical value in the crude magnesium refining and smelting process, and is of great significance for improving product quality and reducing potential safety risks.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing and feeding safety protection device for crude magnesium refining production, characterized in that: include: A refining furnace (6), wherein a feeding port (4) is arranged on the refining furnace (6); A sealing connection piece (3) is arranged at the position of the feeding port (4); A siphon (1) whose lower end is connected to a sealing connection (3) and is capable of feeding material into a refining furnace (6); The siphon tube (1) and the sealing connector (3) are sealed at the connection to prevent air from entering the interior of the refining furnace (6); the sealing connector (3) comprises a wide-mouth portion (301), a columnar portion (302), and a flange connection portion (303) from top to bottom, and the flange connection portion (303) is used for sealing the connection flange around the charging port (4) on the refining furnace (6); a sealing plug (2) is provided on the siphon tube (1), and the sealing plug (2) is sealed and matched with the wide-mouth portion (301) of the sealing connector (3).

2. The sealing and feeding safety protection device for crude magnesium refining production according to claim 1 is characterized in that: The siphon tube (1) and the sealing connector (3) are sealed from top to bottom using a funnel-type sealing structure.

3. The sealing and feeding safety protection device for crude magnesium refining production according to any one of claims 1 to 2, characterized in that: A lifting ring (5) is provided on the upper connecting flange of the feeding port (4) provided on the refining furnace (6).

4. The sealing and feeding safety protection device for crude magnesium refining production according to claim 3 is characterized in that: The lifting rings (5) are arranged in plurality and are evenly distributed on the circumference of the upper connecting flange.

5. The sealing and feeding safety protection device for crude magnesium refining production according to claim 4 is characterized in that: An argon filling pressure measuring port (7) is provided on the upper connecting flange of the refining furnace (6).

6. The sealing and feeding safety protection device for crude magnesium refining production according to claim 1 or 5, characterized in that: An intelligent sensing device is arranged on the sealing connection piece (3), and the intelligent sensing device can monitor the change of vacuum degree in real time during the feeding process, and send an alarm signal to the system when an abnormality is detected.

Images