Portable vacuum ladle negative pressure detection device

Abstract

The utility model discloses a portable vacuum ladle negative pressure detection device, and relates to the technical field of aluminum electrolysis detection. Comprising two pressing plates, first bolt holes used for installation are formed in the peripheries of the pressing plates, and the middles of the pressing plates are circular areas penetrating through the holes; the two pressing plates are connected through a fixing screw rod; the size of the sealing rubber mat is matched with that of the pressing plates, the sealing rubber mat is arranged between the two pressing plates, and the sealing rubber mat is provided with second bolt holes corresponding to the first bolt holes; an opening is formed in the center of the sealing gasket according to the screw thread size of the vacuum pressure gauge; the vacuum pressure gauge is installed on the sealing rubber mat through gasket pieces, and the gasket pieces are correspondingly arranged on the two end faces of the opening of the sealing rubber mat. The negative pressure detection device can be conveniently operated by a single person to complete negative pressure detection, and can ensure that the detection result is accurate and reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of aluminum electrolysis detection, and particularly relates to a portable vacuum ladle negative pressure detection device. Background Art

[0002] In the aluminum electrolysis production process, vacuum ladle technology plays a crucial role as a core piece of equipment for transferring molten aluminum. Using an ejector, it creates a negative pressure environment, enabling the crucial operation of drawing molten aluminum from the electrolytic cell. However, existing technologies present numerous challenges in actual production operations.

[0003] Traditionally, after the vacuum ladle has been cleaned and resealed, it undergoes a negative pressure test according to the established process. Before the aluminum tapping operation officially begins, the electrolyzer operator must also perform a negative pressure test. However, the current testing method has significant drawbacks. Firstly, it lacks operational convenience, often requiring the coordinated efforts of multiple personnel to complete the testing process, which is extremely labor-intensive and difficult for a single person to perform independently. This significantly hinders efficient work progress in situations where staffing is tight or time constraints are pressing, leading to lengthy testing processes and delays in subsequent aluminum liquid transfer. Secondly, testing accuracy leaves significant room for improvement. Unstable and erratic test results fail to accurately reflect the actual negative pressure status of the vacuum ladle, making it difficult for production sites to accurately assess the vacuum ladle's operating conditions based on reliable data. This, in turn, creates numerous potential risks. For example, insufficient negative pressure prevents the molten aluminum from reaching the required lift height, preventing smooth aluminum tapping. This also frequently leads to blockages in the aluminum suction pipes, resulting in frequent equipment downtime and maintenance, severely disrupting the normal continuous production rhythm of aluminum electrolysis and reducing overall production efficiency.

[0004] Overall, the aluminum electrolysis industry is in urgent need of an innovative solution that can resolve the above-mentioned problems, which can not only enable electrolysis workers to complete negative pressure testing conveniently and get rid of their dependence on collaboration among multiple people, but also ensure that the test results are accurate and reliable. Utility Model Content

[0005] The purpose of the present invention is to overcome the above-mentioned defects and propose a portable vacuum ladle negative pressure detection device, which can be easily operated by one person to complete the negative pressure detection and can ensure that the detection results are accurate and reliable.

[0006] The specific technical solutions are as follows:

[0007] A portable vacuum ladle negative pressure detection device, comprising

[0008] Two pressure plates are provided, with first bolt holes for installation provided around the pressure plates, and a circular area with a through hole in the middle of the pressure plates; the two pressure plates are connected by a fixing screw;

[0009] A sealing rubber gasket, which matches the size of the pressure plate and is disposed between the two pressure plates, is provided with a second bolt hole corresponding to the first bolt hole; an opening is provided in the center of the sealing rubber gasket according to the thread size of the vacuum pressure gauge; and

[0010] The vacuum pressure gauge is installed on the sealing gasket through the gasket pieces, and the gasket pieces are correspondingly arranged on the two end surfaces of the opening of the sealing gasket.

[0011] Furthermore, in the above solution, semicircular armrests for operation are provided on both sides of the pressing plate.

[0012] Furthermore, in the above solution, the pressing plate and the washer are both made of stainless steel.

[0013] Furthermore, in the above solution, the pressing plate is rectangular or circular in shape.

[0014] Furthermore, in the above solution, the gasket is adhered to the sealing rubber pad, and the gasket is provided with an internal thread corresponding to the thread of the vacuum pressure gauge.

[0015] Compared with the existing technology, the beneficial effects of the present invention are:

[0016] 1. This utility model improves detection accuracy and reduces maintenance costs. The portable vacuum ladle negative pressure detection device has significantly improved negative pressure detection accuracy, effectively reducing the frequency of vacuum ladle repairs and aluminum suction tube blockages. This not only improves production efficiency but also reduces costs associated with equipment failures.

[0017] 2. This utility model improves the process management level of aluminum electrolysis production. The standardization of negative pressure detection makes each detection traceable, which is convenient for recording and tracking, thereby improving the transparency and traceability of the production process.

[0018] 3. This utility model simplifies operational procedures and improves efficiency. The portable vacuum ladle negative pressure detection device is designed with ease of use in mind. From installation to removal, the entire process can be quickly completed by a single person, significantly reducing testing time. The device's high efficiency means negative pressure testing can be completed without adding additional operating time, ensuring continuous and stable production. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an exploded view of the structural parts of the utility model;

[0020] In the accompanying drawings, 1-pressing plate; 2-sealing rubber pad; 3-gasket; 4-fixing screw; 5-vacuum pressure gauge. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation of the utility model in conjunction with the accompanying drawings to make the purpose, technical solution and technical effect of the utility model more clearly presented.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] like Figure 1 As shown, the utility model discloses a portable vacuum ladle negative pressure detection device, which includes a pressing plate 1, a sealing rubber pad 2 and a vacuum pressure gauge 5.

[0024] Two pressure plates 1 are provided, each with primary bolt holes around its perimeter for mounting. A circular area with a through-hole is located in the center of the plate. The two plates are connected by a fixing screw 4. The plate is made of stainless steel and features semicircular handrails on either side for ease of use. The circular area is larger than the ladle opening.

[0025] The sealing gasket 2 matches the size of the pressure plate 1 and is arranged between the two pressure plates 1. The sealing gasket 2 is provided with a second bolt hole corresponding to the first bolt hole; an opening is provided in the center of the sealing gasket 2 according to the thread size of the vacuum pressure gauge 5.

[0026] The vacuum pressure gauge 5 is mounted on the sealing gasket 2 via gaskets 3, which are positioned on both ends of the opening of the sealing gasket 2. The gaskets 3 are adhered to the sealing gasket 2 and have internal threads corresponding to the threads of the vacuum pressure gauge 5. The gaskets 3 are all made of stainless steel.

[0027] The pressing plate 1 can be in a rectangular or circular shape.

[0028] After the vacuum ladle is cleaned and sealed, and before aluminum tapping begins, operators need to check the ladle's sealing and the generation of vacuum negative pressure. However, due to a lack of appropriate testing tools, operators can only rely on experience. If the negative pressure generated by the vacuum ladle is insufficient, it will lead to insufficient lift of the molten aluminum, an inability to aspirate the aluminum, and blockage of the aluminum suction tube. In severe cases, the aluminum tapping operation will be suspended and the ladle will be repaired, affecting the efficiency of aluminum electrolysis. A portable vacuum ladle negative pressure detection device can perform negative pressure testing immediately after the ladle is cleaned and sealed. Ladles that fail the negative pressure test are prohibited from being sent to the electrolysis workshop. Before the aluminum tapping operation begins, operators use the detection device to measure the ladle's negative pressure. Only after the test is passed can the aluminum tapping operation begin.

[0029] During the negative pressure test of a vacuum ladle, the ladle is first connected to a compressed air source to generate the required negative pressure. The operator then precisely aligns the sealing gasket 2 of the negative pressure test device with the ladle's nozzle. Due to the negative pressure generated at the nozzle, the sealing gasket 2 is firmly attached to the nozzle, ensuring a leak-proof seal during the test. At this point, by observing the vacuum pressure gauge 5 connected to the test device, the current negative pressure value within the vacuum ladle can be intuitively read, allowing for an accurate assessment of the ladle's negative pressure status.

[0030] The sealing rubber pad 2 is used as the key sealing element for negative pressure detection, and the suction force generated by the negative pressure is used to achieve sealing. Compared with the traditional flange sealing method, this design is simpler and faster to install. The use of the sealing rubber pad 2 can effectively cope with the working conditions where the surface of the aluminum suction tube mouth is uneven, and provide a better sealing effect. In order to enhance the stability and durability of the device, a stainless steel pressure plate 1 is used to fix the sealing rubber pad 2, and a semicircular handrail is provided. This solution simplifies the installation and disassembly process of the device, and effectively prevents damage to the sealing rubber pad 2 and the vacuum pressure gauge 5 that may occur under the action of high negative pressure suction. The device is small and reliable, and has the advantage of being portable for installation, disassembly, and movement. It can be tested before and after the installation of the aluminum suction tube of the vacuum lifting bag, and the entire process can be completed independently by one person. The manufacturing cost of the device is low and maintenance is simple. This feature makes it more advantageous in industrial applications.

[0031] This embodiment has social benefits:

[0032] 1. Improve production efficiency and safety: By improving the accuracy of vacuum ladle negative pressure detection, the number of ladle repairs and the number of aluminum suction tube blockages are reduced, thereby reducing the risk of production interruption and improving the continuity and safety of aluminum electrolysis production.

[0033] 2. Promote the improvement of process management level: The device makes negative pressure detection traceable, improves the level of aluminum electrolysis production process management, helps to achieve standardization and normalization of the production process, and enhances the controllability of the production process.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of the patent application of the present invention. All equivalent changes, equivalent replacements or modified changes within the technical spirit and principles suggested by the present invention should be included in the scope of patent protection covered by the present invention.

Claims

1. A portable vacuum ladle negative pressure detection device, characterized in that: include: Two pressure plates are provided, with first bolt holes for installation provided around the pressure plates, and a circular area with a through hole in the middle of the pressure plates; the two pressure plates are connected by a fixing screw; A sealing rubber gasket, which matches the size of the pressure plate and is disposed between the two pressure plates, is provided with a second bolt hole corresponding to the first bolt hole; an opening is provided in the center of the sealing rubber gasket according to the thread size of the vacuum pressure gauge; and The vacuum pressure gauge is installed on the sealing gasket through the gasket pieces, and the gasket pieces are correspondingly arranged on the two end surfaces of the opening of the sealing gasket.

2. A portable vacuum ladle negative pressure detection device according to claim 1, characterized in that: Semicircular handrails for operation are provided on both sides of the pressing plate.

3. The portable vacuum ladle negative pressure detection device according to claim 1, characterized in that: The pressing plate and the washer are both made of stainless steel.

4. The portable vacuum ladle negative pressure detection device according to claim 1, characterized in that: The pressing plate is in a rectangular or circular shape.

5. The portable vacuum ladle negative pressure detection device according to claim 1, characterized in that: The gasket is adhered to the sealing rubber pad and is provided with an internal thread corresponding to the thread of the vacuum pressure gauge.

Images