Pulverizer for smelting magnesium from electric furnace slag through silicothermic method

Abstract

The invention relates to the technical field of crushers, in particular to a crusher for smelting magnesium by an electric furnace slag silicothermic method, which comprises a protective cover seat placed on the ground and used for external protection, and two crushing rollers used for crushing raw materials are assembled in the protective cover seat. A driving mechanism used for driving the two crushing rollers to rotate relatively is assembled outside the protective cover seat, two feeding mechanisms used for guiding raw materials to the position over the position between the two crushing rollers are assembled in the protective cover seat, and each feeding mechanism comprises a rotating shaft rotationally installed in the protective cover seat; raw materials fall onto the reinforcing plates from the extension pipes for the first time, then the raw materials between the reinforcing plates are slowly discharged from the position close to the upper portion of the crushing roller along with rotation of the rotating shaft, compared with a conventional mode of feeding from the upper portion, the impact force of the raw materials on the crushing roller is reduced by reducing the falling height of the raw materials twice, broken stone splashing is avoided, and the crushing efficiency is improved. And the service life of the crushing roller is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of pulverizers, and in particular provides a pulverizer for magnesium smelting using a silicon thermal process using electric furnace slag. Background Art

[0002] The process flow of electric furnace slag silicon thermal magnesium smelting includes raw material preparation, batching, calcination, hot charging, vacuum melting, magnesium steam condensation refining and the final slag discharge cycle. During the raw material preparation process, bauxite, dolomite and ferrosilicon need to be crushed separately for use. In actual production, crushers are usually used to crush the raw materials. Common types of crushers include jaw crushers, cone crushers, impact crushers and roller crushers. Since the double-roll crusher produces a uniform particle size and less over-crushing, it is often used to process brittle materials.

[0003] Since the crushing rollers of the double-roll crusher are rotating at high speed, in order to ensure safe use, the raw materials need to be thrown from a higher position. When thrown, the raw materials fall rapidly and directly hit the surface of the crushing roller, causing damage to the crushing roller, affecting the crushing effect and the service life of the equipment. It will also cause the splashing of gravel and the raising of dust. The fast-rotating crushing roller will also generate a large amount of dust during crushing, posing a major safety hazard. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a crusher for electric furnace slag silicon thermal process magnesium smelting, which is used to solve the problems mentioned in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a crusher for magnesium smelting by electric furnace slag silicon thermal method, comprising a protective cover seat placed on the ground for external protection, the interior of the protective cover seat is equipped with two crushing rollers for crushing raw materials, the exterior of the protective cover seat is equipped with a driving mechanism for driving the two crushing rollers to rotate relative to each other, the interior of the protective cover seat is equipped with two sets of feeding mechanisms for guiding the raw materials to the top between the two crushing rollers, the feeding mechanism includes a rotating shaft rotatably mounted inside the protective cover seat, the surfaces of the two rotating shafts are equidistantly equipped with guide plates forming a closed space with the crushing rollers, and the guide plates of each set of feeding mechanisms Each of the guide plates is provided with four guide plates which can be moved radially along the rotating shaft to the surface of the crushing roller. The ends of the adjacent guide plates located directly above the middle of the two crushing rollers are squeezed to form a closed space, and the adjacent guide plates closest to the lower ends of the center lines of the two crushing rollers are rotated and separated to drop the materials. The oblique side of the protective cover seat is equipped with a material discharge mechanism for conveying the raw materials to the surface of the guide plate. The interior of the protective cover seat is equipped with two groups of arc-shaped baffles for limiting. The ends of the guide plates are against the surface of the arc-shaped baffles. The top of the arc-shaped baffles is equipped with an integrally formed sealing plate for sealing. The sealing plate is fixedly installed on the protective cover seat, and a visual window is provided on the surface of the protective cover seat.

[0006] Preferably, a plurality of guide rods are fixedly installed on the surface of the rotating shaft corresponding to each material guide plate, and the guide rods are movable through the interior of the material guide plate. The surface of the rotating shaft is also equipped with a reinforcement component for reinforcing the installation of the material guide plate. Guide blocks for guiding are fixedly installed on both sides of the material guide plate. A closed-loop groove is opened inside the protective cover seat, and the closed-loop groove includes an arc-shaped area and a vertical area. The guide block is stuck in the inside of the closed-loop groove and moves.

[0007] Preferably, the closed-loop groove further includes a communication zone tangent to the arc-shaped zone, the vertical zone extends to right above between the two crushing rollers, and the communication zone is communicated with the interior of the vertical zone.

[0008] Preferably, the number of the reinforcement components is four, and the four reinforcement components correspond one to one with the material guide plate. Each reinforcement component includes a reinforcement plate installed on both sides of the material guide plate, and the surface of the reinforcement plate is inclined and the end thereof is against the surface of the material guide plate.

[0009] Preferably, the discharge mechanism includes a discharge pipe installed through the surface of the arc-shaped baffle, the upper end of the discharge pipe extends to the outside of the protective cover seat, the feed port of the discharge pipe is equipped with a storage pipe in a horizontal state, the storage pipe and the discharge pipe are connected by a flexible material pipe, the top of the storage pipe is equipped with a discharge box for discharging materials, and the surface of the protective cover seat is equipped with a lifting assembly for lifting the storage pipe.

[0010] Preferably, the lifting assembly includes a support seat fixedly mounted on the surface of the protective cover seat, the interior of the support seat is equipped with a cam that rests against the lower surface of the storage tube, and a motor is mounted on the surface of the support seat to drive the cam to rotate.

[0011] Preferably, the interior of the feed tube is equipped with an extension tube that can be telescoped inside the interior of the feed tube, and the end of the extension tube is located above the feed guide plate.

[0012] Preferably, guide shafts are fixedly installed on both sides of the extension tube, and a guide groove is provided on the surface of the protective cover seat along the falling direction of the discharge tube. One end of the rotating shaft extends to the outside of the protective cover seat, and the surface of the rotating shaft is equipped with a four-star-shaped rotating plate. The side of the rotating plate is against the surface of the guide shaft, and the outside of the protective cover seat is equipped with a safety cover for protection.

[0013] Preferably, a U-shaped telescopic plate is sleeved on the surface of the guide plate, the end of the telescopic plate is against the surface of the arc-shaped baffle, and a plurality of springs in a compressed state are installed between the telescopic plate and the guide plate.

[0014] Preferably, adjacent sides of the two sealing plates are located directly above the axes of the two rotating shafts.

[0015] The above technical solution has the following advantages or beneficial effects: 1. The present invention provides a crusher for electric furnace slag silicon thermal method magnesium smelting. The raw material falls from the extension tube to the reinforcement plate for the first time. Then the raw material between the reinforcement plates is slowly discharged from the position near the top of the crushing roller as the rotating shaft rotates. Compared with the conventional method of feeding from a high place, the impact force of the raw material on the crushing roller is reduced by reducing the falling height of the raw material twice, which not only avoids the splash of gravel, but also extends the service life of the crushing roller.

[0016] 2. The raw materials enter the closed protective cover seat through the storage pipe, flexible material pipe, discharge pipe and extension pipe, which reduces dust from the beginning. During the falling process of the raw materials, the two adjacent telescopic plates above are docked together to form a secondary blockage to reduce dust dispersion. Under the blocking effect of the transparent sealing cover, dust overflow is reduced for the third time. The crushed raw materials are transported out through the screw conveyor, reducing dust overflow for the fourth time.

[0017] 3. The rotation of the shaft drives the guide plate to rotate, and the cooperation between the rotating plate and the guide shaft drives the extension tube to move down or up, so as to avoid the two running out of sync and causing the telescopic plate and the extension tube to collide. The setting of the spring provides retraction space to avoid collision between the telescopic plate and the extension tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention and its features, configurations and advantages will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings, in which like reference numerals indicate like parts throughout the drawings, which are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0019] Figure 1 The present invention provides a schematic diagram of the three-dimensional structure of a crusher for magnesium smelting using the electric furnace slag silicon thermal method.

[0020] Figure 2 It is a schematic diagram of the combined three-dimensional structure of the blanking mechanism and the lifting component.

[0021] Figure 3 yes Figure 2 Front cross-section of .

[0022] Figure 4 This is a front cross-sectional view of the protective cover seat when the crushing roller is rotating and crushing.

[0023] Figure 5 This is a front cross-sectional view of the feeding mechanism when the guide plate is in the closed state.

[0024] Figure 6 This is a front cross-sectional view of the feeding mechanism when the guide plate is in the unloading state.

[0025] Figure 7 yes Figure 1 Schematic diagram of the top-down three-dimensional structure.

[0026] Figure 8 It is a three-dimensional structural diagram of the installation status of the feeding mechanism and the protective cover seat.

[0027] Figure 9 It is a three-dimensional structural diagram of the feeding mechanism.

[0028] Figure 10 It is a schematic diagram of the three-dimensional structure of the closed-loop groove inside the protective cover seat.

[0029] In the figure: 1. Protective cover seat; 2. Crushing roller; 3. Driving mechanism; 4. Feeding mechanism; 401. Rotating shaft; 402. Guide plate; 403. Guide rod; 404. Guide block; 405. Closed-loop groove; 405a. Arc area; 405b. Vertical area; 405c. Connecting area; 5. Unloading mechanism; 501. Unloading pipe; 502. Storage pipe; 503. Flexible pipe; 504. Discharge box; 505. Extension pipe; 506. Guide shaft; 507. Guide groove; 508. Rotating plate; 509. Safety cover; 6. Arc baffle; 7. Sealing plate; 8. Lifting assembly; 801. Support seat; 802. Cam; 9. Reinforcement assembly; 901. Reinforcement plate; 10. Visual window; 11. Telescopic plate; 12. Spring. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Figure 1 Disclosed is a crusher for electric furnace slag silicon thermal process magnesium smelting, which is used to crush ore raw materials such as bauxite, dolomite and ferrosilicon. Figure 1 、 Figure 4 and Figure 10As shown, the crusher adopts double crushing rollers 2 to crush the raw materials. The crushing rollers 2 are rotatably installed inside the protective cover seat 1. The two crushing rollers 2 are rotated toward each other through an external driving mechanism 3. Each crushing roller 2 is driven by a driving mechanism 3. The driving mechanism 3 is composed of a motor, a pulley fixed on the output end of the motor and the crushing roller 2, and a belt that drives the two pulleys. The protective cover seat 1 is placed on the ground at a certain height from the ground, which is convenient for discharging the crushed raw materials under the protective cover seat 1. A screw conveyor is installed at the discharge port to spirally convey the crushed raw materials, which can also effectively reduce dust overflow.

[0033] like Figure 1 、 Figure 4 and Figure 5 As shown, two sets of feeding mechanisms 4 are installed inside the protective cover seat 1, and the two sets of feeding mechanisms 4 are installed symmetrically. The discharge port of the feeding mechanism 4 is located just above the position between the two crushing rollers 2. In this embodiment, the feeding mechanism 4 includes a rotating shaft 401 rotatably installed inside the protective cover seat 1. The two rotating shafts 401 rotate slowly and continuously relative to each other and are driven by an external motor (not shown in the figure). Four guide plates 402 are assembled on the surface of each rotating shaft 401, and the four guide plates 402 are equidistantly arranged (that is, the angle between adjacent guide plates 402 is 90°). Each guide plate 402 can move along the radial direction of the rotating shaft 401, and a discharge mechanism 5 is installed on the oblique side of the protective cover seat 1 to transfer the raw material to the surface of the guide plate 402. It should be noted that each time the discharge mechanism 5 is used for transmission, the guide plate 402 located below the discharge port must be in a completely horizontal state, as shown in FIG. Figure 4 The position of the guide plate 402 is until it rotates to Figure 5 In the middle state, the raw material is transferred and the shaft 401 is continuously rotating. Figure 5 The two material guide plates 402 at the upper middle position and the two material guide plates 402 at the lower position are in a state of contact and sealing with each other, so even during the loading process, dust can be effectively prevented from overflowing.

[0034] like Figure 8 and Figure 9As shown, each guide plate 402 is slidably mounted with a plurality of guide rods 403 on one side close to the rotating shaft 401. The guide rods 403 are fixedly mounted on the surface of the rotating shaft 401. The guide plate 402 can move along the length direction of the guide rods 403. A U-shaped telescopic plate 11 is slidably sleeved on the surface of the guide plate 402. The end of the telescopic plate 11 is arc-shaped. A spring 12 is fixedly mounted between the telescopic plate 11 and the guide plate 402. In order to ensure that the guide plate 402 can provide a large supporting force for the raw material, the design In order to extend the service life of the equipment, a reinforcement component 9 is fixedly installed on the surface of the rotating shaft 401. There are four reinforcement components 9, and the four reinforcement components 9 correspond one to one with the guide plate 402. Each reinforcement component 9 includes two reinforcement plates 901. The reinforcement plates 901 are located on both sides of the telescopic plate 11 to provide oblique support for the guide plate 402. At this time, the reinforcement plates 901, the rotating shaft 401 and the telescopic plate 11 form a triangle with high stability, ensuring that the telescopic plate 11 and the guide plate 402 can provide greater support for the raw materials.

[0035] like Figure 4 、 Figure 5 、 Figure 8 and Figure 10 As shown, two closed-loop grooves 405 are provided inside the protective cover seat 1. The closed-loop grooves 405 include an arc-shaped area 405a, a vertical area 405b and a connecting area 405c. The two closed-loop grooves 405 are symmetrically distributed, and the two vertical areas 405b are opposite to each other. It should be noted that the lower end height of the vertical area 405b is the same as the highest point height of the crushing roller 2, and the connecting area 405c is tangent to the arc-shaped area 405a. The connection points of the vertical area 405b, the arc-shaped area 405a and the connecting area 405c are all rounded. The two sides of the guide plate 402 are fixed. A guide block 404 is fixedly installed, and the end of the guide block 404 is against the inside of the closed-loop groove 405. Two arc-shaped baffles 6 are fixedly installed inside the protective cover seat 1. The arc-shaped baffle 6 is concentrically arranged with the arc-shaped area 405a. The upper end of the arc-shaped baffle 6 is located directly above the axis of the rotating shaft 401. The upper end of the arc-shaped baffle 6 is integrally formed with a horizontally extending sealing plate 7. A visual window 10 is formed between the two sealing plates 7. The position of the visual window 10 is sealed with a transparent sealing cover. The staff observes the falling material on the guide plate 402 at the position of the visual window 10.

[0036] like Figure 4-Figure 6 and Figure 8As shown, during the rotation of the shaft 401, the guide block 404 is always located inside the closed-loop groove 405. Therefore, the path of the closed-loop groove 405 is the moving path of the end of each guide plate 402. During this process, the guide plate 402 slides on the surface of the guide rod 403, and the raw material falls from the inside of the unloading mechanism 5 to the surface of the telescopic plate 11 and the reinforcement plate 901. The raw material is stuck between the adjacent reinforcement plates 901 during the rotation. As the shaft 401 rotates, the gradually approaching telescopic plates 11 conflict with each other, and the state of the guide plate 402 and the reinforcement plate 901 is Figure 5 As shown, the springs 12 connected to the mutually conflicting telescopic plates 11 are gradually compressed, and when the rotation state is again in Figure 4 In the middle state, the springs 12 connected to the mutually conflicting telescopic plates 11 are compressed to the shortest, and the raw material is also in a horizontal state. The rotation continues, and the rotation state returns to Figure 5 In the state, the guide plate 402 and the reinforcement plate 901 are in a downward tilted state. When the two telescopic plates 11 are separated, as shown in FIG. Figure 6 As shown, the raw material will slide between the two crushing rollers 2, but the ends of the two adjacent telescopic plates 11 above will be squeezed and contacted, and the crushing position will be isolated from the outside by the two telescopic plates 11, which can effectively prevent dust from overflowing and ensure the safety of the use environment. At the same time, the position where the lower ends of the two telescopic plates 11 are separated (that is, the raw material discharge port position) is closer to the surface of the crushing roller 2, so it can effectively reduce the impact of the raw material on the crushing roller 2, thereby increasing the service life of the crushing roller 2 and indirectly increasing the service life of the entire equipment.

[0037] like Figure 1-Figure 4 and Figure 7 As shown, the unloading mechanism 5 includes a unloading pipe 501, which is fixed obliquely through the surface of the protective cover seat 1 and the arc-shaped baffle 6. In order to prevent the raw materials from falling directly and hitting the surface of the feeding mechanism 4, an extension pipe 505 is movably installed inside the unloading pipe 501. The extension pipe 505 can slide along the inner wall of the unloading pipe 501. When unloading is required, the lower end of the extension pipe 505 is close to the surface of the feeding mechanism 4. As the feeding mechanism 4 continues to rotate, the lower end of the extension pipe 505 gradually moves away from the feeding mechanism 4.

[0038] like Figure 1-Figure 4 and Figure 7As shown, guide shafts 506 are fixedly installed on both sides of the extension tube 505, and guide grooves 507 are opened on the surface of the protective cover seat 1 along the discharge path of the discharge tube 501. The guide shafts 506 are located inside the guide grooves 507 and can slide along the guide grooves 507. The corresponding rotating shaft 401 extends to the outside of the protective cover seat 1. A four-star-shaped rotating plate 508 is fixedly installed at the end of the rotating shaft 401. During the rotation of the rotating shaft 401, the edge of the rotating plate 508 abuts against the surface of the guide shaft 506. A safety cover 509 is fixedly installed on the outside of the protective cover seat 1. The rotating plate 508 508, the guide groove 507 and the guide shaft 506 are all located inside the safety cover 509. During the rotation of the feeding mechanism 4, the rotating plate 508 also rotates to squeeze the guide shaft 506 gradually away from the rotating shaft 401, thereby realizing that the extension tube 505 gradually moves away from the feeding mechanism 4. Therefore, the raw material will not directly hit the surface of the feeding mechanism 4 from a higher position, thereby effectively ensuring the service life of the feeding mechanism 4, and indirectly ensuring the service life of the crusher. By adjusting the falling height of the raw material twice, the impact force on the components when the raw material is discharged is reduced.

[0039] like Figure 1-Figure 4 The unloading mechanism 5 also includes a storage pipe 502 installed in a horizontal state. The width of the storage pipe 502 and the unloading pipe 501 is at least greater than 1 / 2 of the width of the feeding mechanism 4 and less than 3 / 4 of the width of the feeding mechanism 4, ensuring that the raw materials will fall evenly on the surface of the feeding mechanism 4, leaving space for the raw materials to slide between the unloading edge and the protective cover seat 1, and avoiding the raw materials from falling into the gap between the feeding mechanism 4 and the protective cover seat 1 as much as possible. A flexible material pipe 503 is fixedly installed between the storage pipe 502 and the unloading pipe 501. In the initial state, the storage pipe 502 is in a horizontal state and no material is loaded. A lifting component 8 is installed on the surface of the protective cover seat 1 to lift one end of the storage pipe 502. The storage pipe 502 becomes an inclined state, so that the raw materials can be transported. The lifting component 8 includes a support seat 801, which is fixedly installed on the surface of the protective cover seat 1. The lower surface of the storage pipe 502 overlaps the upper surface of the support seat 801. On the surface, a cam 802 is installed inside the support seat 801 through a rotating shaft, and the rotating shaft is driven by a motor. When the rotating shaft rotates, the cam 802 will indirectly lift the storage tube 502, and a discharge box 504 for discharging materials is installed above the storage tube 502. The discharge box 504 is filled with raw materials, and the raw materials will fall and fill the inside of the storage tube 502. When the storage tube 502 is tilted, due to the wide width of the storage tube 502, the raw materials will fall evenly into the inside of the feeding mechanism 4, avoiding a large amount of raw materials from accumulating in a certain position, dispersing the supporting pressure of the feeding mechanism 4, and indirectly ensuring the service life of the feeding mechanism 4. At the same time, when the feeding mechanism 4 is unloading, the raw materials are evenly spread laterally when loading, avoiding the raw materials from concentrating on the middle position of the crushing roller 2, dispersing the pressure of the crushing roller 2 during crushing, and indirectly improving the service life of the crushing roller 2, thereby improving the overall service life of the crusher.

[0040] The present invention provides a crusher for magnesium smelting by silicon thermal method using electric furnace slag, wherein the raw materials are placed inside the discharge box 504, and the raw materials fall into the inside of the storage tube 502 under the action of their own weight, and the rotating shaft 401, the driving mechanism 3 and the cam 802 rotate at the same time, and the protruding position of the cam 802 is against the lower surface of the storage tube 502, and the storage tube 502 is in an inclined state, and the raw materials can pass through the inside of the flexible material tube 503, the discharge tube 501 and the extension tube 505 from the inside of the storage tube 502 and fall on the surface of the telescopic plate 11 and the reinforcement plate 901. As the rotating shaft 401 continues to rotate, the guide block 404 moves inside the closed-loop groove 405, and the guide plate 402 can slide along the surface of the guide rod 403. At the same time, the telescopic plate 11 can also move with the guide plate 402. Since there is a spring 12 between the guide plate 402 and the telescopic plate 11, when it is rotated to Figure 5 In the middle state, the ends of the two adjacent telescopic plates 11 at the upper position contact and squeeze each other, thereby forming a sealed space, and the gap between the two adjacent telescopic plates 11 at the lower position gradually increases, and the raw materials will fall on the surface of the two crushing rollers 2, and the crushing rollers 2 crush the raw materials. During this process, the rotating plate 508 will also rotate with the rotating shaft 401, and the surface of the rotating plate 508 will continuously squeeze the guide shaft 506, so that the guide shaft 506 drives the extension tube 505 away from the surface of the rotating shaft 401 until the extension tube 505 can no longer move. At this time, when the telescopic plate 11 passes through the extension tube 505, the protruding position of the extension tube 505 will squeeze the telescopic plate 11, and the spring 12 will be compressed, so that the telescopic plate 11 can smoothly pass through the position of the extension tube 505 for the next loading, and the above operations are repeated.

[0041] It should be noted that when the telescopic plate 11 rotates upward from a horizontal state, the extension tube 505 begins to move toward the surface away from the rotating shaft 401. After the telescopic plate 11 rotates 45°, the extension tube 505 begins to move toward the direction close to the rotating shaft 401. When the next telescopic plate 11 rotates to a horizontal state, the extension tube 505 is closest to the surface of the telescopic plate 11, and the raw material slides down the tilt and falls onto the reinforcement plate 901.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 therefore should not be understood as limiting the present invention.

[0043] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0044] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A pulverizer for magnesium smelting using the electric furnace slag silicon thermal process, comprising a protective cover seat placed on the ground, two crushing rollers for crushing raw materials mounted inside the protective cover seat, and a drive mechanism for driving the two crushing rollers to rotate relative to each other mounted outside the protective cover seat, characterized in that: The interior of the protective cover is equipped with two sets of feeding mechanisms for guiding the raw materials to the space between the two crushing rollers. The feeding mechanism includes a rotating shaft rotatably mounted inside the protective cover. The surfaces of the two rotating shafts are equidistantly equipped with guide plates that form a closed space with the crushing rollers. Each set of feeding mechanisms is provided with four guide plates that can move radially along the rotating shaft to the surface of the crushing rollers. The ends of the adjacent guide plates located directly above the center of the two crushing rollers are squeezed to form a closed space. The adjacent guide plates closest to the lower end of the center line of the two crushing rollers rotate and separate to drop the raw materials. After two buffering steps, the raw materials fall. The oblique side of the protective cover seat is equipped with a unloading mechanism for evenly dispersing and transferring the raw materials to the surface of the guide plate. The interior of the protective cover seat is equipped with two groups of arc-shaped baffles for limiting. The end of the guide plate is against the surface of the arc-shaped baffle. The top of the arc-shaped baffle is integrally formed with a sealing plate for sealing. The sealing plate is fixed to the protective cover seat, and a visual window is provided on the surface of the protective cover seat.

2. The electric furnace slag pulverizer for silicon thermal magnesium smelting according to claim 1, characterized in that: A plurality of guide rods are fixedly installed on the surface of the rotating shaft corresponding to each material guide plate, and the guide rods are movable through the interior of the material guide plate. The surface of the rotating shaft is also equipped with a reinforcement component for reinforcing the installation of the material guide plate. Guide blocks for guiding are fixedly installed on both sides of the material guide plate. A closed-loop groove is provided inside the protective cover seat, and the closed-loop groove includes an arc-shaped area and a vertical area. The guide block is clamped in the interior of the closed-loop groove and moves.

3. The pulverizer for electric furnace slag silicon thermal process magnesium smelting according to claim 2, characterized in that: The closed-loop groove further includes a communication zone tangent to the arc-shaped zone, the vertical zone extends to right above between the two crushing rollers, and the communication zone is communicated with the interior of the vertical zone.

4. The electric furnace slag pulverizer for silicon thermal magnesium smelting according to claim 2, characterized in that: There are four reinforcement components, and the four reinforcement components correspond one to one with the material guide plate. Each reinforcement component includes a reinforcement plate installed on both sides of the material guide plate. The surface of the reinforcement plate is inclined and the end portion is against the surface of the material guide plate.

5. The electric furnace slag pulverizer for silicon thermal magnesium smelting according to claim 1, characterized in that: The unloading mechanism includes a unloading pipe installed through the surface of the arc-shaped baffle, the upper end of the unloading pipe extends to the outside of the protective cover seat, the feed port of the unloading pipe is equipped with a storage pipe in a horizontal state, the storage pipe and the unloading pipe are connected by a flexible material pipe, the top of the storage pipe is equipped with a discharge box for discharging materials, and the surface of the protective cover seat is equipped with a lifting assembly for lifting the storage pipe.

6. The pulverizer for electric furnace slag silicothermic magnesium smelting according to claim 5, characterized in that: The lifting assembly includes a support seat fixedly mounted on the surface of the protective cover seat, the interior of the support seat is equipped with a cam that rests against the lower surface of the storage tube, and a motor is mounted on the surface of the support seat to drive the cam to rotate.

7. The pulverizer for electric furnace slag silicon thermal process magnesium smelting according to claim 5, characterized in that: The interior of the feed tube is equipped with an extension tube which can be extended and retracted inside the feed tube, and the end of the extension tube is located above the feed guide plate.

8. The pulverizer for electric furnace slag silicothermic magnesium smelting according to claim 7, characterized in that: Guide shafts are fixedly installed on both sides of the extension tube, and a guide groove is provided on the surface of the protective cover seat along the falling direction of the discharge tube. The guide shaft is stuck in the inside of the guide groove, and one end of the rotating shaft extends to the outside of the protective cover seat. The surface of the rotating shaft is equipped with a four-star-shaped rotating plate, and the side of the rotating plate is against the surface of the guide shaft. The outside of the protective cover seat is equipped with a safety cover for protection.

9. The pulverizer for electric furnace slag silicothermic magnesium smelting according to claim 8, characterized in that: A U-shaped telescopic plate is sleeved on the surface of the guide plate, and the end of the telescopic plate is against the surface of the arc-shaped baffle. A plurality of springs in a compressed state are assembled between the telescopic plate and the guide plate.

10. The pulverizer for electric furnace slag silicothermic magnesium smelting according to claim 1, characterized in that: The adjacent sides of the two sealing plates are located directly above the axes of the two rotating shafts.

Images