A granular salt melting box electrode

Abstract

The utility model discloses a granular salt melts frame electrode, including first electrode, second electrode, the first electrode is hollow rectangular shape, the first electrode upper end opening is equipped with the pouring layer closed opening, be equipped with mounting hole A and mounting hole B on the pouring layer, mounting hole A is inserted with second electrode, mounting hole B fixed mounting feed pipe, one side upper end of the first electrode is equipped with the conducting board a, the conducting board a is equipped with bolt hole A, this frame electrode has promoted the efficiency of melting significantly, can complete more melting work load in the same time period, thereby effectively promoted the overall improvement of production efficiency, not only reduced the investment cost, still has the positive significance to the expansion production scale, has the positive promoting effect to the development of promoting the melting operation to the automation control direction.

Description

Technical Field

[0001] This invention belongs to the field of molten salt chlorination technology, and in particular relates to a granular salt melting frame electrode. Background Technology

[0002] Magnesium, a crucial metallic material, is renowned for its low density and high strength, although it did not receive widespread attention before the 20th century. Magnesium chloride granules, a core raw material for the electrolytic production of magnesium, play a vital role in ensuring the quality of the electrolytically produced magnesium through its upstream process—the molten chlorination of magnesium chloride granules. This process involves melting anhydrous magnesium chloride granules at high temperatures to form a more easily decomposed molten material, thereby effectively improving production efficiency. This method has gained widespread recognition and application within the industry.

[0003] Currently, molten chlorination processes commonly use traditional rectangular steel electrode rods for salt molten chlorination. While this electrode structure is simple, it presents several problems: First, the addition of magnesium chloride granules from the center of the electrode rods leads to uneven current distribution and a dispersed melting range, resulting in slow melting of anhydrous magnesium chloride solid granules and reduced production efficiency. Second, the dispersed melting range results in higher power consumption, requiring a more powerful transformer and increasing investment costs for the melting process. Furthermore, the dispersed arrangement of traditional steel electrode rods leads to a large furnace opening, resulting in significant energy loss during exhaust gas treatment and increased energy consumption. Finally, the dispersed arrangement of the steel electrodes causes a large amount of powder from the granular salt to be drawn into the exhaust gas treatment system, and the accumulation of powder in the exhaust gas affects the stable operation of the exhaust gas pipeline and bag filter, increasing the frequency of manual maintenance. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a granular salt melting frame electrode, which solves the aforementioned technical problems.

[0005] To achieve the purpose of this utility model, the following technical solution is adopted: a granular salt melting frame electrode, including a first electrode and a second electrode, wherein the first electrode is rectangular and hollow; a casting layer is provided to close the opening at the upper end of the first electrode; the casting layer is provided with mounting holes A and B; the second electrode is inserted into the mounting hole A; a feed pipe is fixedly installed in the mounting hole B; a conductive plate a is provided on the upper end of one side of the first electrode; the conductive plate a is provided with bolt holes A.

[0006] Furthermore, the first electrode includes a side plate, a steel plate, and a conductive plate a; there are four side plates in total, forming a rectangular first electrode; a melting chamber is formed inside the first electrode; the lower end of the side plate is serrated; a boss is provided on the upper end of the outer side wall of the side plate; the steel plate is rectangular and hollow; the inner diameter of the steel plate is the same as the outer diameter of the first electrode, and the steel plate is sleeved on the outer side of the upper end of the first electrode and fixedly installed on the boss of the side plate.

[0007] Furthermore, the second electrode includes an electrode rod, a conductive plate b, a bolt, and a nut; the electrode rod is rectangular; the conductive plate b is vertically disposed on both sides of the upper end of the electrode rod, and the two conductive plates b and the electrode rod are sequentially passed through by bolts, and fixed by two nuts in cooperation with the bolts; the upper end of the conductive plate b is provided with a bolt hole B.

[0008] Furthermore, the upper outer edge of the mounting hole A is provided with a raised edge, which is used in conjunction with the second electrode when it is inserted.

[0009] Furthermore, the casting layer is made of aluminum casting material; multiple anchoring strips are provided inside the casting layer; the anchoring strips are welded together by overlapping, and the anchoring strips are welded to the top of the side plate with a welding height of not less than 4mm.

[0010] Furthermore, the first electrode is made of carbon steel; the second electrode is made of graphite; and the feed tube is made of stainless steel.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] 1. During the pneumatic conveying process, the powder material smoothly enters the melting chamber through the feed pipe. Compared to traditional steel electrodes, the frame electrode used in granular salt melting exhibits a more concentrated melting area and a more balanced current distribution. This advantage significantly improves melting efficiency, enabling more melting work to be completed in the same time period, thereby effectively promoting the overall improvement of production efficiency;

[0013] 2. During the melting of granular salt, the concentrated melting area and small furnace opening effectively reduce energy loss within the furnace and improve thermal efficiency. Therefore, the product's power consumption is significantly reduced, allowing for the use of smaller power transformers to ensure a stable melting process. This improvement not only reduces investment costs but also has positive implications for expanding production scale.

[0014] 3. The unique structure of the granular salt melting frame electrode effectively prevents a large amount of powder from being discharged with the exhaust gas, significantly reducing the workload of the exhaust gas pipeline and bag filter in the exhaust gas treatment unit, thereby reducing the need for frequent manual maintenance. This improvement will greatly reduce the labor intensity of operators and significantly improve their working environment, playing a positive role in promoting the development of melting operations towards automated control. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of the intermediate motor of this utility model;

[0018] In the diagram: First electrode-1, side plate-101, steel plate-102, conductive plate a-103, melting chamber-104, bolt hole A-105, second electrode-2, electrode rod-201, conductive plate b-202, bolt-203, nut-204, bolt hole B-205, feed pipe-3, casting layer-4, mounting hole A-401, mounting hole B-402, anchoring strip-5. Detailed Implementation

[0019] The technical solutions of the present utility model will now be clearly and completely described with reference to the accompanying drawings of the embodiments thereof:

[0020] like Figure 1-3As shown, a granular salt melting frame electrode includes a first electrode 1 and a second electrode 2. The first electrode 1 is rectangular and hollow. This rectangular hollow design not only reduces the overall weight but also increases the surface area of ​​the electrode, which is beneficial for uniform heat distribution and conduction. A casting layer 4 is provided at the upper opening of the first electrode 1 to seal the opening. This casting layer 4 is made of a high-temperature resistant and high-strength material. The casting layer 4 increases the structural strength of the entire first electrode 1, better adapting to the high-temperature environment during melting. The casting layer 4 also has excellent heat insulation properties, reducing heat loss and improving energy utilization efficiency. The casting layer 4 is provided with mounting holes A401 and B40. 2; The mounting hole A401 is used to insert the second electrode 2, which is tightly connected to the first electrode 1 through the insertion method to form a stable electrode pair; The mounting hole B402 is used to fix the feed pipe 3, which serves as the channel for the granular salt to enter the melting chamber. Its design should ensure that the material can flow smoothly and be evenly distributed in the first electrode 1; A conductive plate a103 is provided on the upper side of one side of the first electrode 1; The conductive plate a103 is provided with bolt holes A105 for fixing the busbar through ordinary bolts. In this way, the current can be transmitted through the busbar to the conductive plate a103, and then further conducted to the first electrode 1 to realize the melting process of the granular salt with the second electrode 2.

[0021] Specifically, the first electrode 1 includes a side plate 101, a steel plate 102, and a conductive plate a103. There are four side plates 101, forming a rectangular first electrode 1. During practical application, exhaust holes can be opened on one side of the side plates 101 according to site requirements to discharge exhaust gases and other harmful substances generated during the melting process, ensuring a safe working environment. A melting chamber 104 is formed inside the first electrode 1. These side plates not only serve as the electrode's framework but also protect the molten material within the melting chamber 104. The lower end of the side plates 101 is serrated, which helps to increase... The contact area between the first electrode and the molten material is increased, improving melting efficiency. The upper end of the outer wall of the side plate 101 is provided with protrusions, which provide a stable support and installation foundation for the steel plate 102, ensuring that the steel plate 102 can be firmly fixed to the first electrode 1 and preventing loosening or detachment during the melting process. The steel plate 102 is rectangular and hollow. The inner diameter of the steel plate 102 is the same as the outer diameter of the first electrode 1. The steel plate 102 is fitted onto the outer side of the upper end of the first electrode 1 and fixedly installed on the protrusions of the side plate 101, further enhancing the structural stability of the first electrode.

[0022] Specifically, the second electrode 2 includes an electrode rod 201, a conductive plate b202, a bolt 203, and a nut 204. The electrode rod 201 is rectangular to ensure a stable alignment with the first electrode 1. The conductive plates b202 are vertically arranged on both sides of the upper end of the electrode rod 201. Bolts 203 pass through the conductive plates b202 and the electrode rod 201 in sequence, and are fixed by two nuts 204 in cooperation with the bolts 203. The upper end of the conductive plate b202 is provided with a bolt hole B205 for connecting and fixing the busbar through ordinary bolts, ensuring that the current can be smoothly conducted to the second electrode 2 for melting. This design not only enhances the structural strength of the second electrode, but also facilitates the connection of the busbar through the bolt hole B205 to achieve stable current transmission.

[0023] Specifically, the upper outer edge of the mounting hole A401 is provided with a raised edge, which is used in conjunction with the second electrode 2 when it is inserted.

[0024] Specifically, the casting layer 4 is made of aluminum or silicon casting material; multiple anchoring strips 5 are provided inside the casting layer 4, and the anchoring strips 5 are welded together by overlapping. The anchoring strips 5 are welded to the top of the side plate 101, and the welding height is not less than 4mm. The main purpose is to make the casting layer 4 stronger and able to bear a greater load.

[0025] Specifically, the first electrode 1 is made of carbon steel; the second electrode 2 is made of graphite; and the feed tube 3 is made of stainless steel.

[0026] In application, first ensure that the first electrode 1 and the second electrode 2 are clean and dry. Then, insert the second electrode 2 into the mounting hole A401 and secure it firmly. Next, install the feed pipe 3 onto the mounting hole B402, ensuring a good seal. Finally, connect the conductive plate a103 to the busbar and the conductive plate b202 to the busbar using bolts. During operation, simply inject the granular salt into the first electrode 1 through the feed pipe 3 and connect the power supply to begin the melting process.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A granular salt melting frame electrode, comprising a first electrode (1) and a second electrode (2), characterized in that: The first electrode (1) is rectangular and hollow; a casting layer (4) is provided at the upper opening of the first electrode (1) to close the opening; the casting layer (4) is provided with mounting holes A (401) and B (402); the second electrode (2) is inserted into the mounting hole A (401); the feed pipe (3) is fixedly installed in the mounting hole B (402); a conductive plate a (103) is provided on the upper side of the first electrode (1); the conductive plate a (103) is provided with bolt holes A (105).

2. The granular salt melting frame electrode according to claim 1, characterized in that: The first electrode (1) includes a side plate (101), a steel plate (102), and a conductive plate a (103); the side plate (101) consists of four pieces, forming a rectangular first electrode (1); a melting chamber (104) is formed inside the first electrode (1); the lower end of the side plate (101) is serrated; a boss is provided on the upper end of the outer side wall of the side plate (101); the steel plate (102) is rectangular and hollow; the inner diameter of the steel plate (102) is the same as the outer diameter of the first electrode (1), and the steel plate (102) is sleeved on the outer side of the upper end of the first electrode (1) and fixedly installed on the boss of the side plate (101).

3. The granular salt melting frame electrode according to claim 1, characterized in that: The second electrode (2) includes an electrode rod (201), a conductive plate b (202), a bolt (203), and a nut (204); the electrode rod (201) is rectangular; the conductive plate b (202) is vertically arranged on both sides of the upper end of the electrode rod (201), and the bolt (203) passes through the conductive plate b (202) and the electrode rod (201) in sequence, and is fixed by two nuts (204) in cooperation with the bolt (203); the upper end of the conductive plate b (202) is provided with a bolt hole B (205).

4. The granular salt melting frame electrode according to claim 1, characterized in that: The mounting hole A (401) has a raised edge at the upper outer edge, which is used in conjunction with the second electrode (2) when it is inserted.

5. The granular salt melting frame electrode according to claim 1, characterized in that: The casting layer (4) is a silica casting material; multiple anchoring strips (5) are provided inside the casting layer (4); the anchoring strips (5) are welded together by overlapping, and the anchoring strips (5) are welded to the top of the side plate (101) with a welding height of not less than 4mm.

6. The granular salt melting frame electrode according to claim 1, characterized in that: The first electrode (1) is made of carbon steel; the second electrode (2) is made of graphite; and the feed tube (3) is made of stainless steel.

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