Insulation short circuit structure in magnesium electrolysis production with closed local chlorine environment
The PTFE expansion joint with fire-resistant insulation and a soft outer gas-tight layer addresses the failure and leak issues in magnesium electrolysis systems, ensuring safe and cost-effective chlorine gas containment.
Patent Information
- Application Number
- CN202422541968.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-21
AI Technical Summary
In the prior art, the insulating short-connection structure between the electrolytic cell and the scraper is prone to damage, has a short service life, high cost, and a high risk of chlorine leakage, which poses serious safety hazards.
The insulated short-connected structure consisting of polytetrafluoroethylene telescopic joints and flanges, lined with refractory fiber cloth or thermal insulation cotton, outsourcing airtight layer and ventilation port design, forming a safe chlorine sealing environment, and using inert or heat-resistant materials to reduce leakage risk.
It effectively solves the insulation problem between the electrolytic cell and the scraper, eliminates chlorine leakage, reduces production costs, and improves workers' safety, and is convenient and cost-effective to replace the outsourcing airtight layer.
Smart Images
Figure CN223105614U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electrolytic cell metal production, in particular to an insulating short - circuit structure in magnesium electrolysis production with a locally enclosed chlorine environment. Background Art
[0002] The chlorine gas produced by the anode of the electrolytic cell enters the chlorine gas scraper through the gas collecting hood and the chlorine gas branch pipe connected to the gas collecting hood, and is sent to the bag filter for dust removal. To solve the insulation between the electrolytic cell and the scraper, an insulating short - circuit is installed on the chlorine gas branch pipe. The original use of high - temperature - resistant non - metal compensators had many faults during use, was easily damaged, had a short service life, and a high replacement cost.
[0003] In addition, chlorine gas leakage will be a serious accident, but the short - circuit position is a position prone to leakage.
[0004] There are many workers in the workshop, so various protections can protect the safety of workers to a certain extent.
[0005] Currently, they are all simple protection technologies.
[0006] On October 21, 2024, using "Insulation and short circuiting and polytetrafluoroethylene and protection and leakage" as the abstract keywords, a search was conducted in the Chinese Patent Publication Database, and no relevant literature was found.
[0007] On October 21, 2024, a search was conducted for the abstract using "Insulation and short circuiting and polytetrafluoroethylene and protection and leakage" on CNKI, and no relevant literature was found.
[0008] On October 21, 2024, a search was conducted using "Insulation with short circuiting with PTFE with protection with leakage" on the website of the United States Patent and Trademark Office, and no relevant literature was found; the search URL is https: / / ppubs.uspto.gov / pubwebapp / .
[0009] On October 21, 2024, a search was conducted using "Insulation and short circuiting and PTFE and protection and leakage" on the Korean Patent Office, and no relevant literature was found; the search URL is http: / / eng.kipris.or.kr / enghome / main.jsp.
[0010] On October 21, 2024, a search was conducted on https: / / patentscope2.wipo.int / of WIPO with the term "Insulation and short circuiting and PTFE and protection and leakage".
[0011] On October 21, 2024, a search was conducted on the website of the Japan Patent Office, https: / / www.j-platpat.inpit.go.jp / , with the term "Insulation and short circuiting and PTFE and protection and leakage", and no relevant literature was found. Summary of the Utility Model
[0012] Purpose of the utility model: To provide an insulation short - circuit structure in the magnesium electrolysis production with a better - effect local chlorine gas environment enclosure. The specific purpose can be seen from the multiple substantial technical effects in the specific implementation part.
[0013] An insulation short - circuit structure in the magnesium electrolysis production with a local chlorine gas environment enclosure, characterized in that the insulation short - circuit structure includes a polytetrafluoroethylene expansion joint 1 and flanges on both sides. The two flanges 4 are respectively an insulation short - circuit flange one and an insulation short - circuit flange two. Between the insulation short - circuit flange one and the insulation short - circuit flange two is the polytetrafluoroethylene expansion joint 1, and the inner wall of the polytetrafluoroethylene expansion joint 1 is lined with a heat - insulating layer; a 5 - CM refractory fiber cloth or heat - insulating cotton is lined on the inner wall of the polytetrafluoroethylene expansion joint 1 to prevent high temperature from damaging the polytetrafluoroethylene compensator; it can solve the insulation problem between the electrolytic cell and the scraper, and prevent chlorine gas leakage.
[0014] It also includes a soft outer air - tight layer 2, and both sides of the outer air - tight layer 2 are heat - sealed to the flanges on both sides.
[0015] An air vent 6 is arranged on the outer air - tight layer 2.
[0016] A further technical solution of the present utility model is that the heat - sealing position 5 where both sides of the outer air - tight layer 2 are heat - sealed to the flanges on both sides enables the outer air - tight layer 2 to enclose the bolts.
[0017] A further technical solution of the present utility model is that the said outer air - tight layer 2 is made of an inert material or a heat - resistant material.
[0018] A further technical solution of the present utility model is that the air vent 6 includes a closing cover.
[0019] The further technical solution of the present utility model lies in that the insulating short-circuit structure is installed between the gas collecting hood and the chlorine gas branch pipe connected to the gas collecting hood; the polytetrafluoroethylene expansion joint 3 is in the form of a corrugated pipe; the heat-insulating layer is a 5CM refractory fiber cloth or heat-insulating cotton; the insulating short-circuit flange one and the insulating short-circuit flange two each include a sealing gasket made of polytetrafluoroethylene; the chlorine gas branch pipe is connected to the scraper; the gas collecting hood is connected to the electrolytic cell.
[0020] The present utility model adopting the above technical solution has the following beneficial effects compared with the prior art: It is composed of a polytetrafluoroethylene expansion joint and a flange. During installation, a 5CM refractory fiber cloth or heat-insulating cotton is lined on the inner wall of the polytetrafluoroethylene compensator to prevent damage to the polytetrafluoroethylene compensator caused by high temperature. After the polytetrafluoroethylene compensator is put into use, on the one hand, it solves the insulation problem between the electrolytic cell and the scraper, on the other hand, it prevents chlorine gas leakage and also reduces the production cost.
[0021] At the same time, aiming at the technical defect "In addition, chlorine gas leakage will be a serious accident, but the short-circuit position is a position prone to leakage.", the outer airtight layer 2 can be constructed into a special outer environment, which is safer. It avoids chlorine gas leakage at the flange. If the overall outer airtight layer 2 starts to bulge, it indicates chlorine gas leakage, and maintenance should be carried out as soon as possible while wearing a gas mask, making the workers safer.
[0022] And the cost of this outer airtight layer 2 is very low and it is also convenient to replace. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to further illustrate the present utility model, the following is further described in conjunction with the drawings:
[0024] Figure 1 It is a cross-sectional view of the utility model;
[0025] Figure 2 It is a three-dimensional view of the utility model;
[0026] Figure 3 It is a perspective view of the utility model;
[0027] Among them: 1. Polytetrafluoroethylene expansion joint; 2. Outer airtight layer; 3. Chlorine gas environment; 4. Flange; 5. Heat-sealing position; 6. Ventilation port. SPECIFIC EMBODIMENTS
[0028] The present utility model will be further illustrated below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, unless otherwise clearly specified and defined, the terms "installed", "connected", "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 or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0029] It should be noted that in this article, 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including 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.
[0030] This patent provides multiple parallel solutions. The different expressions belong to improved solutions or parallel solutions based on the basic solution. Each solution has its own unique features. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other. The fixing method not described in the text can be any one of screw fixing, bolt fixing or glue bonding, etc.
[0031] Example 1: Combining all the drawings; an insulating short-circuit structure in magnesium electrolysis production with a partially chlorine gas environment enclosed, characterized in that the insulating short-circuit structure comprises a polytetrafluoroethylene expansion joint 1 and flanges on both sides. The flanges 4 on both sides are respectively an insulating short-circuit flange one and an insulating short-circuit flange two. Between the insulating short-circuit flange one and the insulating short-circuit flange two is the polytetrafluoroethylene expansion joint 1, and the inner wall of the polytetrafluoroethylene expansion joint 1 is lined with a heat-insulating layer; a 5CM refractory fiber cloth or heat-insulating cotton is lined on the inner wall of the polytetrafluoroethylene expansion joint 1 to prevent damage to the polytetrafluoroethylene compensator caused by high temperature; it can solve the insulation problem between the electrolytic cell and the scraper conveyor and prevent chlorine gas leakage;
[0032] It also includes a soft outer airtight layer 2, and both sides of the outer airtight layer 2 are heat-sealed on the flanges on both sides;
[0033] An air vent 6 is arranged on the outer airtight layer 2. The substantial technical effect and its implementation process, that is, the basic function, of the technical solution here are as follows:
[0034] It consists of a polytetrafluoroethylene expansion joint and flanges. When installing, a 5CM refractory fiber cloth or heat-insulating cotton is lined on the inner wall of the polytetrafluoroethylene compensator to prevent damage to the polytetrafluoroethylene compensator caused by high temperature. After the polytetrafluoroethylene compensator is put into use, on the one hand, it solves the insulation problem between the electrolytic cell and the scraper conveyor, on the other hand, it prevents chlorine gas leakage, and also reduces the production cost.
[0035] At the same time, aiming at the technical defect "In addition, chlorine gas leakage will be a serious accident, but the short-circuit position is a position prone to leakage.", the outer airtight layer 2 can be constructed into a special outer environment, which is safer. It avoids chlorine gas leakage at the flange. If the overall outer airtight layer 2 starts to bulge, it indicates chlorine gas leakage, and maintenance should be carried out as soon as possible while wearing a gas mask, making the workers safer.
[0036] And this kind of outer airtight layer 2 has a very low cost and is also convenient to replace.
[0037] Example 2: As a further improvable scheme or parallel scheme or alternative independent scheme, the heat-sealing position 5 where both sides of the outer airtight layer 2 are heat-sealed on the flanges on both sides can enable the outer airtight layer 2 to enclose the bolts. The substantial technical effect and its implementation process, that is, the basic function, of the technical solution here are as follows: Therefore, the overall sealing performance is better.
[0038] Example 3: As a further improvable scheme or parallel scheme or alternative independent scheme, the said outer airtight layer 2 is made of inert material or heat-resistant material. The substantial technical effect and its implementation process, that is, the basic function, of the technical solution here are as follows: The inert material is preferably ethylene propylene diene monomer rubber, chloroprene rubber, silicone rubber, fluororubber.
[0039] Embodiment 4: As a further improvable solution, parallel solution or alternative independent solution, the vent 6 is provided with a closed cover. The substantial technical effect achieved by the technical solution herein and its implementation process, i.e., the basic function, are as follows: It can be used for air extraction to deflate the entire outer airtight layer 2 as much as possible. In this way, once there is a leak, the shape change can be immediately observed.
[0040] Embodiment 5: As a further improvable solution, parallel solution or alternative independent solution, the insulating short-circuit structure is installed between the gas collecting hood and the chlorine gas branch pipe connected to the gas collecting hood; the polytetrafluoroethylene expansion joint 3 is in the form of a corrugated pipe; the heat insulation layer is a 5CM refractory fiber cloth or heat insulation cotton; the insulating short-circuit flange 1 and the insulating short-circuit flange 2 each include a polytetrafluoroethylene gasket; the chlorine gas branch pipe is connected to the scraper; the gas collecting hood is connected to the electrolytic cell.
[0041] Innovatively, each of the above effects exists independently, and the combination of the above results can also be achieved with a single set of structures.
[0042] It should be noted that the multiple solutions provided by this patent include their own basic solutions, which are independent of each other and do not restrict each other. However, they can also be combined with each other without conflict to achieve the co-realization of multiple effects.
[0043] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed protection.
Claims
1. Insulating short-circuit structure in magnesium electrolysis production with local chlorine gas environment enclosed, characterized in that The insulating short-circuit structure includes a polytetrafluoroethylene expansion joint (1) and flanges on both sides. The flanges (4) on both sides are respectively the insulating short-circuit flange one and the insulating short-circuit flange two. Between the insulating short-circuit flange one and the insulating short-circuit flange two is the polytetrafluoroethylene expansion joint (1), and the inner wall of the polytetrafluoroethylene expansion joint (1) is lined with a heat-insulating layer; a 5CM refractory fiber cloth or heat-insulating cotton is lined on the inner wall of the polytetrafluoroethylene expansion joint (1) to prevent high temperature from damaging the polytetrafluoroethylene compensator; it can solve the insulation problem between the electrolytic cell and the scraper, and prevent chlorine leakage; It also includes a soft outer airtight layer (2), and both sides of the outer airtight layer (2) are heat-sealed on the flanges on both sides; An air vent (6) is arranged on the outer airtight layer (2).
2. The insulating short - circuit structure in the magnesium electrolysis production with a locally chlorine - gas - environment - enclosed, as described in claim 1, is characterized in that, The heat-sealing position (5) where both sides of the outer airtight layer (2) are heat-sealed on the flanges on both sides enables the outer airtight layer (2) to enclose the bolts.
3. The insulation shorting structure in the magnesium electrolysis production with a locally chlorine gas environment enclosed as described in claim 1, characterized in that, The said outer airtight layer (2) is made of inert material or heat-resistant material.
4. The insulating short-circuit structure in the magnesium electrolysis production with a locally chlorine gas environment enclosed as claimed in claim 1, wherein The air vent (6) includes a closing cover.
5. The insulating short-circuit structure in the magnesium electrolysis production with a locally chlorine gas environment enclosed as claimed in claim 1, characterized in that The insulating short-circuit structure is installed between the gas collecting hood and the chlorine branch pipe connected to the gas collecting hood; the polytetrafluoroethylene expansion joint (3) is in the form of a corrugated pipe; the heat-insulating layer is a 5CM refractory fiber cloth or heat-insulating cotton; the insulating short-circuit flange one and the insulating short-circuit flange two each include a polytetrafluoroethylene gasket; the chlorine branch pipe is connected to the scraper; the gas collecting hood is connected to the electrolytic cell.
6. The insulating short-circuit structure in the magnesium electrolysis production with a locally chlorine gas environment enclosed as claimed in claim 1, characterized in that, The outer airtight layer (2) is in an un-inflated state, and when chlorine leaks, the outer airtight layer (2) is in an inflated state.