A magnesium chloride melting and heat preservation conveying device

Abstract

This utility model discloses a magnesium chloride melting and heat-insulating conveying device, relating to the field of magnesium chloride heat-insulating conveying technology. The utility model includes a conveying pipeline with one end at a higher position and the other end at a lower position. The device designs the conveying pipeline with one end at a higher position and the other at a lower position. Molten magnesium chloride, as a fluid with a certain mass, naturally flows from the higher position to the lower position under the action of gravity, thus realizing a power-free conveying process. The pipe wall of the conveying pipeline is constructed with placement grooves, and multiple sets of placement grooves are arranged in a ring around the cross-section of the conveying pipeline. A constant-temperature heating rod is installed inside the placement groove. The heating rod, installed in the placement groove on the pipe wall of the conveying pipeline, generates heat when energized. This heat is transferred to the conveying pipeline through heat conduction, and then to the molten magnesium chloride inside the pipeline, compensating for heat loss during the conveying process, maintaining the melting temperature of the magnesium chloride, and ensuring that the temperature drop during the conveying process meets ≤8℃.

Description

Technical Field

[0001] This utility model relates to the field of magnesium chloride heat preservation and conveying technology, specifically to a magnesium chloride melting heat preservation and conveying device. Background Technology

[0002] Anhydrous magnesium chloride can be electrolyzed to produce metallic magnesium, but this process requires the raw material anhydrous magnesium chloride to be in a molten state. The temperature of magnesium chloride in the molten state is generally around 730℃. Then, it is filtered through high-temperature micropores at 700–720℃. After that, it needs to be transported over a long distance in the molten state. The transportation requirements are generally: temperature drop ≤8℃ and continuous heat preservation flow, while avoiding contact with oxygen as much as possible.

[0003] There are two existing conveying schemes: one is using a trolley, and the other is using pipeline conveying. This application aims to design a pipeline conveying device that meets the requirements, based on pipeline conveying. Compared with the existing technology, this device has the characteristics of more stable temperature insulation measures and maintaining the flow of magnesium chloride in the molten state without power drive. Utility Model Content

[0004] The purpose of this invention is to design a pipeline conveying device that meets the requirements. Compared with the prior art, this device has the characteristics of more stable temperature insulation measures and maintaining the flow of magnesium chloride in the molten state without power drive. This invention provides a magnesium chloride molten insulation conveying device.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A magnesium chloride melting and heat-insulating conveying device includes a conveying pipe, one end of which is at a high position and the other end at a low position. The pipe wall of the conveying pipe is constructed with a pipe placement groove. Multiple sets of the pipe placement grooves are arranged in a ring around the cross section of the conveying pipe. A constant temperature heating rod is installed in the pipe placement groove. The device also includes a heat-insulating cover wrapped around the conveying pipe.

[0007] Furthermore, the conveying pipeline has horizontal and inclined sections arranged separately, with the horizontal sections used to slow down the flow rate.

[0008] Furthermore, it also includes support legs, which are fixed below the conveying pipe and are provided in multiple sets.

[0009] Furthermore, both the high and low ends of the conveying pipeline are horizontal sections, and each is provided with an inlet and an outlet.

[0010] Furthermore, the liquid inlet includes a housing that communicates with the high end of the delivery pipeline. A flanged liquid inlet pipe is fixedly connected to the top side of the housing. The interior of the housing, below the liquid inlet pipe, is inclined towards the low end of the delivery pipeline.

[0011] Furthermore, the outlet includes an outlet pipe, and both the outlet pipe and the inlet pipe are equipped with valves. The outlet pipe is connected and fixed to the lower horizontal section of the lower end of the conveying pipeline.

[0012] Furthermore, it also includes a deaeration assembly, which includes an air duct that is fixedly connected to the top of the housing. An air nozzle is provided at the end of the air duct. The air nozzle is used to connect to an air pump and the gas introduced is an inert gas. The lower end of the delivery pipe is connected to a vertically arranged air outlet pipe, and a one-way valve is installed at the top outlet of the air outlet pipe.

[0013] Furthermore, the heat insulation cover consists of two half-covers that are joined together on the outside of the conveying pipe on the left and right sides. The two half-covers are fastened together by bolts and the bottom is fixed to the support leg.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention features a pipe groove constructed on the wall of the conveying pipeline, with multiple sets of grooves arranged in a ring around the cross-section of the conveying pipeline. This design allows for the uniform placement of constant temperature heating rods, resulting in more even heating of magnesium chloride in the pipeline in the circumferential direction. Compared to traditional single-sided or localized heating methods, this significantly improves the heating effect and temperature uniformity.

[0016] This invention utilizes gravity as the driving force to propel molten magnesium chloride from a higher to a lower position within an inclined conveying pipe, eliminating the need for additional power equipment. This design simplifies the device structure and reduces equipment costs and energy consumption.

[0017] This invention features a conveying pipe with horizontal and inclined sections arranged separately. The horizontal section slows down the flow rate, allowing magnesium chloride to remain in the pipe for a longer period, which helps maintain a stable conveying state and avoids a series of problems caused by excessive flow rate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention after the insulation cover has been removed;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a top view of the housing of this utility model;

[0021] Figure 4 This is a utility model Figure 3 A sectional view;

[0022] Attached reference numerals: 1. Conveying pipe; 2. Pipeline; 3. Insulation cover; 31. Half cover; 4. Horizontal section; 5. Inclined section; 6. Support leg; 7. Liquid inlet; 71. Box body; 72. Liquid inlet pipe; 73. Inclined; 8. Liquid outlet; 81. Liquid outlet pipe; 82. Valve; 9. Deoxygenation assembly; 91. Air duct; 92. Air nozzle; 93. Air outlet pipe; 94. One-way valve; 10. Constant temperature heating rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] This embodiment provides a magnesium chloride molten insulation and conveying device, the main purpose of which is to design a pipeline conveying device that meets the requirements. Compared with the prior art, this device has the characteristics of more stable temperature insulation measures and maintaining the flow of molten magnesium chloride without power drive. The following technical solution is provided, which will be combined with... Figures 1-4 Please provide a detailed explanation:

[0025] Example 1:

[0026] A magnesium chloride molten heat-insulating conveying device includes a conveying pipe 1, with one end at a higher position and the other end at a lower position. The device designs the conveying pipe 1 with one end at a higher position and the other at a lower position. Molten magnesium chloride, as a fluid with a certain mass, naturally flows from the higher position to the lower position under the action of gravity, thus realizing a power-free conveying process. The pipe wall of the conveying pipe 1 is constructed with a pipe-inserting groove 2, and multiple sets of the pipe-inserting groove 2 are arranged in a ring around the cross-section of the conveying pipe 1. A constant-temperature heating rod 10 is installed inside the pipe-inserting groove 2. The constant-temperature heating rod 10, installed in the pipe wall of the conveying pipe 1 within the pipe-inserting groove 2, generates heat when energized. This heat is transferred to the conveying pipe 1 through heat conduction, and then to the molten magnesium chloride inside the pipe, compensating for heat loss during the conveying process and maintaining heat balance. The melting temperature of magnesium chloride is also considered within the insulation cover 3 surrounding the conveying pipe 1. The design of the insulation cover 3 further reduces heat loss, ensuring that the temperature drop during conveying meets the requirement of ≤8℃. In other words, this application primarily utilizes a pipe-inserting groove 2 constructed on the wall of the conveying pipe 1, with multiple sets of grooves arranged in a ring around the cross-section of the conveying pipe 1. This design allows for the uniform distribution of the constant-temperature heating rods 10, resulting in more uniform heating of the magnesium chloride within the pipe in the circumferential direction. Compared to traditional single-sided or localized heating methods, this significantly improves the heating effect and temperature uniformity, which is beneficial for maintaining a stable molten state of magnesium chloride. Simultaneously, it cleverly utilizes gravity as a driving force, allowing the molten magnesium chloride to flow from the higher end to the lower end within the inclined conveying pipe 1, eliminating the need for additional power equipment to propel its flow. This design simplifies the device structure and reduces equipment costs and energy consumption.

[0027] In this embodiment, a support leg 6 is also included. Multiple sets of support legs 6 are fixed below the conveying pipe 1. The support legs 6 are mainly used to provide support for the conveying pipe 1 to meet the height difference requirements. To better ensure flow stability, the conveying pipe 1 has a horizontal section 4 and an inclined section 5, arranged separately. The horizontal section 4 is used to slow down the flow rate. Both the high and low ends of the conveying pipe 1 are horizontal sections 4, and each has an inlet 7 and an outlet 8. The purpose of the horizontal section 4 is to allow magnesium chloride to flow from the high end to the low end under gravity after entering the conveying pipe 1. The conveying pipe 1 has a horizontal section 4 and an inclined section 5, arranged separately. The horizontal section 4 slows down the flow rate, allowing magnesium chloride to remain in the pipe for a relatively longer time, which helps maintain a stable conveying state and avoids a series of problems caused by excessively fast flow rates, such as excessive impact on the pipe.

[0028] In this embodiment, specifically, the inlet 7 includes a box 71 that is connected to the high end of the conveying pipe 1. The top side of the box 71 is fixedly connected to an inlet pipe 72 with a flange. The part of the box 71 located below the inlet pipe 72 is inclined towards the low end of the conveying pipe 1 73. The principle of this structure is that the top side of the box 71 at the inlet 7 is connected to an external molten magnesium chloride source through the inlet pipe 72 with a flange. Because the part of the box 71 located below the inlet pipe 72 is inclined 73 and faces the lower end of the conveying pipe 1, this facilitates the smooth flow of molten magnesium chloride into the upper horizontal section 4 of the conveying pipe 1 by its own gravity. At the same time, the outlet 8 includes an outlet pipe 81. Both the outlet pipe 81 and the inlet pipe 72 are equipped with valves 82. The outlet pipe 81 is connected and fixed to the lower part of the lower horizontal section 4 of the conveying pipe 1. The working principle here is: the outlet pipe 81 of the outlet 8 is connected and fixed to the lower part of the lower horizontal section 4 of the conveying pipe 1, and the outlet pipe 81 is equipped with a valve 82, which can control the output of magnesium chloride.

[0029] In this embodiment, in order to refine the specific structure of the heat insulation cover 3, the heat insulation cover 3 is composed of two half covers 31 and is spliced ​​on the outside of the conveying pipe 1 on the left and right sides. The two half covers 31 are fastened together by bolts and the bottom is fixed to the support leg 6. The two half covers 31 are fastened together by bolts, which can facilitate the assembly and disassembly of the heat insulation cover 3.

[0030] Example 2:

[0031] This embodiment adds the following technical solution based on embodiment 1: it also includes a deoxygenation component 9, which includes an air duct 91 fixedly connected to the top of the housing 71. An air nozzle 92 is provided at the end of the air duct 91. The air nozzle 92 is used to connect to an air pumping device and the gas introduced is an inert gas. A vertically arranged air outlet pipe 93 is fixedly connected to the lower end of the conveying pipe 1. A one-way valve 94 is installed at the top outlet of the air outlet pipe 93. The one-way valve 94 is set to prevent external air from entering. Before conveying molten magnesium chloride, an inert gas, such as argon, is introduced into the housing 71 through an external air pumping device and the air duct 91. The inert gas is sprayed out from the air nozzle 92 to replace the air in the housing 71. The air and other gases in the pipe are discharged through the vertically arranged air outlet pipe 93 fixedly connected to the lower end. This effectively prevents the molten magnesium chloride from being oxidized during the conveying process, ensures the purity of magnesium chloride, and thus helps to improve the production quality of metallic magnesium.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A molten magnesium chloride heat-insulated conveying device comprising a conveying pipe (1), characterized in that, One end of the conveying pipe (1) is at a high position and the other end is at a low position. A pipe groove (2) is constructed on the pipe wall of the conveying pipe (1). Multiple sets of pipe grooves (2) are arranged in a ring around the cross section of the conveying pipe (1). A constant temperature heating rod (10) is installed in the pipe groove (2). It also includes a heat insulation cover (3) wrapped around the conveying pipe (1).

2. A molten magnesium chloride heat retaining and conveying device according to claim 1, characterized in that, The conveying pipe (1) has a horizontal section (4) and an inclined section (5) arranged separately, and the horizontal section (4) is used to slow down the flow rate.

3. The molten magnesium chloride heat- retaining and conveying device according to claim 1, characterized in that, It also includes support legs (6), which are fixed below the conveying pipe (1) and are provided in multiple sets.

4. The molten magnesium chloride heat- retaining and conveying device according to claim 2, characterized in that, The high end and the low end of the conveying pipeline (1) are both horizontal sections (4), and are respectively provided with an inlet (7) and an outlet (8).

5. A magnesium chloride melting, heat retaining and conveying device according to claim 4, characterized in that The inlet (7) includes a box (71) connected to the high end of the conveying pipe (1). The top side of the box (71) is fixedly connected to an inlet pipe (72) with a flange. The part of the inside of the box (71) below the inlet pipe (72) is inclined (73) towards the low end of the conveying pipe (1).

6. The magnesium chloride melting and heat preservation conveying device according to claim 5, characterized in that, The outlet (8) includes an outlet pipe (81), and valves (82) are provided on both the outlet pipe (81) and the inlet pipe (72). The outlet pipe (81) is connected and fixed to the lower part of the horizontal section (4) of the lower end of the conveying pipe (1).

7. The magnesium chloride melting and heat preservation conveying device according to claim 1, characterized in that, It also includes a deoxygenation component (9), which includes an air duct (91) that is fixed to the top of the housing (71). An air nozzle (92) is provided at the end of the air duct (91). The air nozzle (92) is used to connect to an air pump and the gas introduced is an inert gas. The lower end of the delivery pipe (1) is connected to a vertically arranged air outlet pipe (93). A one-way valve (94) is installed at the top outlet of the air outlet pipe (93).

8. A magnesium chloride melting and heat preservation conveying device according to claim 1, characterized in that, The heat insulation cover (3) consists of two half covers (31) and is spliced ​​on the outside of the conveying pipe (1) on the left and right sides. The two half covers (31) are fastened together by bolts and the bottom is fixed to the support leg (6).

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