Reduction magnesium smelting crystallization device
By designing a reducing magnesium crystallization device that directly connects the injection material to the condensation equipment and the heating furnace, the problem of continuous production in the magnesium production process in the prior art is solved, and the continuity and efficiency of magnesium production are achieved.
Patent Information
- Application Number
- CN202422231827.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-12
AI Technical Summary
In the magnesium production process, the reduction tank needs to be opened and closed again each time, resulting in the inability to achieve continuous production.
A reduction magnesium crystallization device was designed, and the reduction tank was cancelled, and the injection and condensation equipment were directly connected to the heating furnace. Through the cooperation of the hydraulic cylinder and the sliding rod, the sealing connection between the feed tank and the heating furnace was realized to maintain a vacuum environment.
Continuous production of magnesium production is achieved, the opening and closing operation of the reduction tank is avoided, and the production efficiency and heating effect are improved.
Smart Images
Figure CN223002994U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of magnesium production, and specifically relates to a reduction magnesium smelting crystallization device. Background Art
[0002] In the Pidgeon process for magnesium smelting, the calcined dolomite (main component CaO・MgO) reacts with ferrosilicon alloy under high temperature (about 1100 - 1200°C) and vacuum conditions. The chemical reaction equation is: 2CaO・MgO + Si(Fe) → 2Mg + 2CaO・SiO2(Fe). The magnesium vapor generated by this reaction condenses into liquid magnesium in the condenser and then further cools and crystallizes to form solid magnesium crystals. During this process, factors such as temperature, vacuum degree, and reaction time have a significant impact on the reduction rate and crystallization quality of magnesium;
[0003] The prior art loads the pressed pellets into the reduction tank and then places the reduction tank into the heating furnace for vacuum heating to produce magnesium. However, each time the filler is loaded, the reduction tank needs to be opened and closed repeatedly, and continuous production cannot be achieved. The utility model solves the above problems. Summary of the Utility Model
[0004] In order to solve the technical problem that the reduction tank needs to be opened and closed repeatedly for each filling in the prior art and continuous production cannot be achieved, the utility model further provides a reduction magnesium smelting crystallization device.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A reduction magnesium smelting crystallization device, comprising: a heating furnace, a vacuum pumping and condensation device is provided on the upper part of the heating furnace, the middle part of the side wall of the heating furnace is communicated with a sealing pipe, the sealing pipe is inclined and the lowest point is communicated with the heating furnace, a sliding rod is hermetically slidable in the sealing pipe, a supporting ear is connected to the outer surface of the sliding rod, the supporting ear is slidably connected in a chute, the chute is opened on the sealing pipe, the fixed end of a hydraulic cylinder is connected to the sealing pipe, and the telescopic end of the hydraulic cylinder is connected to the supporting ear. An inlet groove is opened at the lower part of the sliding rod. When the hydraulic cylinder fully extends, the sealing pipe above the inlet groove is communicated with the feed pipe, and a negative pressure limiting valve is connected to the heating furnace.
[0006] Preferably, the sliding rod on both sides of the inlet groove is in contact with the inner wall of the sealing pipe through a flexible graphite belt.
[0007] Preferably, the bottom wall of the heating furnace is rotationally and hermetically connected with an input shaft, the upper end of the input shaft inside the heating furnace is connected with a turntable, and a bearing hole is opened on the turntable.
[0008] Preferably, the heating furnace is electrically heated, and electric heating elements are uniformly laid on the inner wall of the heating furnace.
[0009] Compared with the prior art, the beneficial effects of the utility model are:
[0010] Cancel the reduction tank, directly connect the charging and condensation equipment to the heating furnace. When charging, keep the heating furnace under vacuum. Place the pellets in the feeding trough. The sliding rod seals and slides to connect the feeding trough with the heating furnace. At this time, the lower end of the feeding pipe is sealed by the sliding rod, which will not affect the vacuum degree in the heating furnace. The air pump keeps sucking to make the magnesium vapor enter the condensation equipment to complete crystallization;
[0011] The turntable rotates to evenly lay the fed pellets on the turntable without stacking, and the heating effect is better. Description of the Drawings
[0012] Figure 1 is a schematic structural diagram of the present utility model;
[0013] Figure 2 is a schematic cross-sectional structural diagram of the present utility model.
[0014] In the figure: heating furnace 1; vacuum extraction and condensation equipment 2; sealing pipe 3; sliding rod 4; supporting ear 5; chute 6; hydraulic cylinder 7; feeding trough 8; feeding pipe 9; input shaft 10; turntable 11; supporting hole 12. Specific Embodiments
[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0016] The term "rotational connection" in this device refers to installing the bearing on the shaft by baking, and there is a spring retaining ring groove on the shaft or shaft hole. The axial fixation of the bearing is achieved by clamping the elastic retaining ring in the retaining ring groove to realize rotation; the term "hinged connection" refers to a connection method that moves on connecting parts such as hinges, pin shafts, and short shafts.
[0017] The present utility model will be described in detail below in conjunction with the accompanying drawings. Embodiment
[0018] Next, in combination with the attached Figure 1-2This embodiment describes a reduction magnesium crystallization device, including: a heating furnace 1, with a vacuum condensation device 2 provided above the heating furnace 1. The middle part of the side wall of the heating furnace 1 is connected to a sealing pipe 3. The sealing pipe 3 is inclined and its lowest point is connected to the heating furnace 1. A sliding rod 4 is hermetically slidable within the sealing pipe 3. An ear 5 is connected to the outer surface of the sliding rod 4, and the ear 5 is slidably connected within a chute 6. The chute 6 is opened on the sealing pipe 3. The fixed end of a hydraulic cylinder 7 is connected to the sealing pipe 3, and the telescopic end of the hydraulic cylinder 7 is connected to the ear 5. A feed chute 8 is opened at the lower part of the sliding rod 4. When the hydraulic cylinder 7 fully extends, the sealing pipe 3 above the feed chute 8 is connected to a feed pipe 9. A negative pressure limiting valve is connected to the heating furnace 1;
[0019] During use, the air extraction pump in the vacuum condensation device 2 is used to maintain a vacuum state within the heating furnace 1. The temperature inside the heating furnace 1 is raised, and pellets are injected into the feed chute 8 through the feed pipe 9. At this time, the end of the sliding rod 4 and the inner wall of the sealing pipe 3 are in a sealed state, and the heating furnace 1 maintains a vacuum. The hydraulic cylinder 7 is controlled to contract. The hydraulic cylinder 7 drives the ear 5 to slide within the chute 6, and the ear 5 drives the sliding rod 4 to slide. When the end of the sliding rod 4 enters the heating furnace 1, the lower end of the feed pipe 9 is sealed by the sliding rod 4, and the pellets enter the heating furnace 1 for heating. The generated gas is sucked by the air extraction pump in the vacuum condensation device 2 and enters the condenser, where it condenses into magnesium crystals. By controlling the hydraulic cylinder 7 to reset, the sliding rod 4 is driven to reset. When the negative pressure inside the heating furnace 1 exceeds the limit during the reset of the sliding rod 4, the negative pressure limiting valve balances the negative pressure to prevent component damage.
[0020] Both sides of the feed chute 8 of the sliding rod 4 are in contact with the inner wall of the sealing pipe 3 through flexible graphite belts;
[0021] The flexible graphite belts enable the sliding rod 4 to maintain a seal with the inner wall of the sealing pipe 3 in a high-temperature environment of 1000 - 1200 degrees, maintaining a vacuum environment.
[0022] The bottom wall of the heating furnace 1 is rotationally and hermetically connected to an input shaft 10. The upper end of the input shaft 10 inside the heating furnace 1 is connected to a turntable 11, and a supporting hole 12 is opened on the turntable 11;
[0023] The pellets fall onto the rotating turntable 11 and will not roll off under the limiting action of the supporting hole 12, and are evenly spread on the turntable 11 without stacking. After crystallization is completed, the input shaft 10 is controlled to rotate rapidly, and the residues on the turntable 11 are centrifugally thrown off to complete the cleaning. After that, the heating furnace 1 is opened to clean the residues.
[0024] The heating furnace 1 uses electric heating, and the electric heating elements are evenly laid on the inner wall of the heating furnace 1;
[0025] The electric heating is uniform and no waste gas is generated.
[0026] In the description of the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", "coupled", "fixed" shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.
[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A reduction magnesium crystallization device, comprising: A heating furnace (1) is provided with a vacuum condensation device (2) on the upper part of the heating furnace (1). The invention is characterized in that: a sealing tube (3) is connected to the middle of the side wall of the heating furnace (1); the sealing tube (3) is inclined and arranged at the lowest point to be connected to the heating furnace (1); a sliding rod (4) is sealed and slidably provided in the sealing tube (3); a support ear (5) is connected to the outer surface of the sliding rod (4); the support ear (5) is slidably connected to the slide groove (6); the slide groove (6) is provided on the sealing tube (3); a fixed end of a hydraulic cylinder (7) is connected to the sealing tube (3); a telescopic end of the hydraulic cylinder (7) is connected to the support ear (5); a feed groove (8) is provided at the lower part of the sliding rod (4); when the hydraulic cylinder (7) is fully extended, the sealing tube (3) at the upper part of the feed groove (8) is connected to the feed pipe (9); and a negative pressure limiting valve is connected to the heating furnace (1).
2. A reduction magnesium crystallization device according to claim 1, characterized in that: The sliding rods (4) on both sides of the feed groove (8) are in contact with the inner wall of the sealing tube (3) via flexible graphite strips.
3. A reduction magnesium crystallization device according to claim 1, characterized in that: The bottom wall of the heating furnace (1) is rotatably sealed with an input shaft (10), the upper end of the input shaft (10) inside the heating furnace (1) is connected to a turntable (11), and a supporting hole (12) is provided on the turntable (11).
4. A reduction magnesium crystallization device according to claim 1, characterized in that: The heating furnace (1) adopts electric heating, and the electric heating elements are evenly laid on the inner wall of the heating furnace (1).