A manganese iron ore slag recycling device

Abstract

This utility model relates to a manganese-iron ore slag recycling and treatment device, belonging to the field of manganese-iron ore tailings processing technology. It mainly includes a frame, a mixing drum, an insulation layer, an electric heating element, a temperature sensor, a discharge mechanism, a stirring mechanism, and a controller. The mixing drum is externally equipped with an insulation layer and an electric heating element, and internally equipped with a stirring mechanism to achieve uniform mixing. The temperature sensor monitors the reaction temperature in real time. The discharge mechanism uses an arc-shaped sealing block combined with an acid-resistant rubber layer to ensure zero leakage and facilitate rapid discharge. This application, through its integrated design of stirring, heating, and temperature control, significantly improves the uniformity and controllability of the acid leaching process, effectively prevents material adhesion and equipment corrosion, ensures efficient recovery of valuable metals, and features a compact structure and convenient operation.

Description

Technical Field

[0001] This utility model belongs to the field of manganese iron ore tailings processing technology, specifically relating to a manganese iron ore tailings recycling and processing device. Background Technology

[0002] In actual production, the recovery of manganese and iron from ferromanganese slag typically involves steps such as grinding, acid leaching, precipitation, and washing and drying. Acid leaching is the crucial step determining metal leaching efficiency, requiring sufficient contact between the slag particles and the leaching agent, and the reaction to occur under suitable temperature conditions. Insufficient leaching or improper temperature control will significantly reduce the leaching rate of manganese and iron, affecting subsequent recovery results.

[0003] However, existing technologies still suffer from defects such as uneven mixing and uncontrollable reaction conditions in actual operation. In particular, problems such as insufficient contact between mineral particles and leaching agents and unstable reaction temperature control are prominent in the acid leaching separation process, resulting in large fluctuations in leaching rate, high energy consumption, and poor operational stability. This seriously affects the leaching efficiency and subsequent recovery effect of valuable metals such as manganese and iron. Therefore, a manganese-iron slag recovery and treatment device integrating stirring, heating, and temperature control is proposed to improve the uniformity and controllability of the acid leaching process and ensure the efficient recovery of valuable metals. Utility Model Content

[0004] To overcome the problems of uneven mixing and uncontrollable reaction conditions in the acid leaching separation process of ferromanganese slag in existing technologies, this utility model provides a ferromanganese slag recycling and processing device. The stirring mechanism achieves uniform mixing of materials, uses electric heating tubes and insulation layers to precisely heat the inside of the mixing cylinder, and monitors temperature changes in real time through temperature sensors to ensure stable and controllable reaction conditions. The discharge mechanism facilitates rapid discharge. The overall structure integrates stirring, heating, and temperature control, significantly improving the uniformity and controllability of the acid leaching process and ensuring the efficient recovery of valuable metals. To achieve the above objectives, this utility model is implemented through the following technical solution: A manganese-iron ore slag recycling and processing device mainly includes a frame, a mixing cylinder, an insulation layer, an electric heating tube, a temperature sensor, a discharge mechanism, a stirring mechanism, and a controller. A support platform is installed on the frame, and the mixing cylinder is mounted on top of the support platform. A cover plate is installed at the top of the mixing cylinder. The insulation layer covers the outer wall of the mixing cylinder, effectively reducing heat loss and energy consumption. A cavity sandwich is formed between the insulation layer and the heating tube, which is spirally wound within the cavity sandwich. The temperature sensor is installed on the side wall of the mixing cylinder, located inside the mixing cylinder. When the temperature sensor detects that the temperature is lower than the set value, the controller will control the electric heating tube to start heating, raising the temperature inside the mixing cylinder. When the temperature reaches the set value, the controller will control the electric heating tube to stop heating, thereby achieving precise control of the reaction temperature. This precise temperature control can avoid the problem of large fluctuations in the leaching rate caused by improper temperature control, ensuring that the acid leaching reaction is carried out under suitable temperature conditions, which is beneficial to improving the leaching efficiency and stability of valuable metals.

[0005] A discharge port is provided on the side wall of the mixing drum. The discharge mechanism is installed at the discharge port. The stirring mechanism is installed at the top of the frame and extends through the cover plate into the inside of the mixing drum. The controller is installed on the frame. The heating tube, temperature sensor, discharge mechanism, stirring mechanism and controller are electrically connected. The discharge mechanism includes a discharge hopper, a slide rail, a slider, a pulley, an arc-shaped sealing block, and a cylinder. The discharge hopper is installed at the discharge port, and an arc-shaped guide plate is provided at the bottom of the discharge hopper. The slide rail is installed at the top of the discharge hopper, and the slider is slidably installed on the slide rail via the pulley. The arc-shaped sealing block is installed at the front end of the slider, and its curvature matches the discharge port. The cylinder is installed on the side wall of the discharge hopper, and its piston rod passes through the discharge hopper and is fixedly connected to the slider. The cylinder is electrically connected to the controller. After the acid leaching reaction is completed, the material separated by acid leaching can be smoothly discharged through the discharge mechanism, which facilitates subsequent sedimentation recovery, washing, drying, and other process operations. The stirring mechanism includes a motor, a main shaft, a connecting plate, a driven shaft, a connecting shaft, a stirring paddle, a connecting rod, a scraper, and stirring blades. The main shaft is rotatably mounted on the top of the frame, the connecting plate is fixedly mounted on the main shaft, the driven shaft is rotatably mounted on one end of the connecting plate, and the connecting shaft is fixedly mounted on the other end of the connecting plate. The driven shaft is connected to the main shaft via a belt drive mechanism. Stirring paddles are installed at the bottom ends of both the driven shaft and the connecting shaft. A connecting rod is provided at the bottom end of the main shaft. There may be two or more connecting rods, and different components are installed on these connecting rods. A scraper is installed on some connecting rods, which can be used to scrape off the adhering substances on a specific surface. Stirring blades are installed on other connecting rods, which can play the role of stirring and mixing materials during operation. The motor is electrically connected to the controller. The scraper is made of polytetrafluoroethylene and has a gap of ≤1mm between it and the inner wall of the mixing cylinder, which effectively prevents material adhesion and avoids wear on the inner wall of the mixing cylinder. The surface of the arc-shaped sealing block is covered with an acid-resistant rubber layer to ensure zero leakage of acid immersion liquid and avoid damage to equipment and the environment caused by corrosive liquid.

[0006] The beneficial effects of this utility model are: The stirring mechanism can fully stir the slag particles and leaching agent in the mixing drum, making the slag particles and leaching agent more evenly mixed and contacted, ensuring that the acid leaching reaction proceeds uniformly throughout the mixing drum, and improving the uniformity of the acid leaching process; the electric heating tube, combined with the temperature sensor and controller, can stably control the reaction temperature within the set range, avoiding the problem of large fluctuations in leaching rate caused by unstable temperature control; the discharge mechanism can easily control the discharge speed and discharge volume of the material in the mixing drum; the device has a high degree of automation control, reducing human interference in the acid leaching process. Attached Figure Description

[0007] Figure 1 This is an isometric schematic diagram of the present invention.

[0008] Figure 2 This is a schematic diagram of the rear view structure of this utility model.

[0009] Figure 3 This is a top view of the structure of this utility model.

[0010] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0011] Figure 5 This is a partial cross-sectional view of the present invention.

[0012] Figure 6 This is a second partial cross-sectional view of the present invention.

[0013] In the attached diagram, the following are the reference numerals: 1. Frame; 2. Mixing cylinder; 3. Insulation layer; 4. Heating element; 5. Temperature sensor; 6. Discharge mechanism; 7. Stirring mechanism; 8. Controller; 601. Discharge hopper; 602. Slide rail; 603. Slider; 604. Pulley; 605. Arc-shaped sealing block; 606. Cylinder; 701. Motor; 702. Main shaft; 703. Connecting plate; 704. Driven shaft; 705. Connecting shaft; 706. Stirring paddle; 707. Connecting rod; 708. Scraper; 709. Stirring blade. Detailed Implementation

[0014] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to facilitate the understanding of those skilled in the art.

[0015] This utility model discloses a manganese-iron ore slag recycling and treatment device, such as Figure 1 As shown, the manganese-iron ore slag recycling and processing device mainly includes a frame 1, a mixing drum 2, an insulation layer 3, an electric heating tube 4, a temperature sensor 5, a discharge mechanism 6, a stirring mechanism 7, and a controller 8. The frame 1 serves as the basic support for the entire device, and a support platform is installed on it for fixing the mixing drum 2. The mixing drum 2 has a cylindrical structure with a cover plate on top to prevent the acid leaching solution from splashing out during stirring. The outer wall of the mixing drum 2 is covered with an insulation layer 3, forming a cavity sandwich between the two. The electric heating tube 4 is arranged in a spiral coil within the cavity sandwich. This design not only ensures that heat is evenly transferred to the interior of the mixing drum 2, but also reduces heat loss and improves energy utilization efficiency. The temperature sensor 5 is installed on the side wall of the mixing drum 2 and extends into the interior of the mixing drum 2 to monitor the temperature changes inside the mixing drum 2 in real time. The temperature sensor 5 transmits the monitored temperature data to the controller 8, and the controller 8 controls the working state of the electric heating tube 4 according to the set temperature range, thereby achieving precise adjustment of the internal temperature of the mixing drum 2.

[0016] like Figure 4 As shown, a discharge port is provided on the side wall of the mixing cylinder 2. A discharge mechanism 6 is installed at the discharge port to control the discharge of the acid leaching solution. The discharge mechanism 6 includes a discharge bin 601, a slide rail 602, a slider 603, a pulley 604, an arc-shaped sealing block 605, and a cylinder 606. The discharge bin 601 is fixedly installed at the discharge port, and its bottom is equipped with an arc-shaped guide plate to facilitate the rapid discharge of materials separated by acid leaching. The slide rail 602 is fixedly installed at the top of the discharge bin 601, and the slider 603 is slidably installed on the slide rail 602 via the pulley 604. The arc-shaped sealing block 605 is installed at the front end of the slider 603, and its curvature perfectly matches the discharge port to ensure a good sealing effect. The cylinder 606 is fixedly installed on the side wall of the discharge bin 601, and its piston rod passes through the discharge bin 601 and is fixedly connected to the slider 603. Cylinder 606 is electrically connected to controller 8. Commands from controller 8 control the extension and retraction of cylinder 606, which in turn moves slider 603 along slide rail 602, causing arc-shaped sealing block 605 to open or close the discharge port. The surface of arc-shaped sealing block 605 is covered with an acid-resistant rubber layer to ensure zero leakage of acid leaching solution during discharge, preventing corrosive liquids from damaging equipment and the environment.

[0017] like Figure 3 , Figure 5 , Figure 6As shown, the stirring mechanism 7 is installed at the top of the frame 1 and extends through the cover plate into the mixing cylinder 2 to achieve uniform mixing of materials. The stirring mechanism 7 includes a motor 701, a main rotating shaft 702, a connecting plate 703, a driven shaft 704, a connecting shaft 705, a stirring paddle 706, a connecting rod 707, a scraper 708, and a stirring blade 709. The motor 701 is fixedly installed at the top of the frame 1, and its output shaft is connected to the main rotating shaft 702. The main rotating shaft 702 is rotatably installed at the top of the frame 1 via bearings. The connecting plate 703 is fixedly installed on the main rotating shaft 702. The driven shaft 704 is rotatably installed at one end of the connecting plate 703 via bearings, and the connecting shaft 705 is fixedly installed at the other end of the connecting plate 703. Driven shaft 704 is connected to main shaft 702 via belt drive mechanism. When motor 701 drives main shaft 702 to rotate, main shaft 702 drives driven shaft 704 to rotate via belt drive mechanism. At the same time, the rotation of main shaft 702 itself also drives connecting plate 703 fixed on it to rotate. The stirring paddle 706 at the bottom of driven shaft 704 and connecting shaft 705 starts to stir the slag and leaching agent in mixing cylinder 2, so that the two are fully mixed.

[0018] like Figure 5 , Figure 6 As shown, both the driven shaft 704 and the connecting shaft 705 are equipped with stirring paddles 706 at their bottom ends. The stirring paddles 706 agitate the materials inside the mixing drum 2 during rotation, ensuring thorough mixing. The bottom end of the main rotating shaft 702 is provided with multiple connecting rods 707, which can be two or more, each equipped with different components. A scraper 708, made of polytetrafluoroethylene, is mounted on one part of the connecting rods 707. The scraper 708 has a gap of ≤1mm between itself and the inner wall of the mixing drum 2, effectively scraping away any adhering substances from the inner wall of the mixing drum 2 during rotation while preventing wear. A stirring blade 709 is mounted on another part of the connecting rods 707. The stirring blade 709 further enhances the agitation effect of the materials during operation, ensuring more uniform mixing.

[0019] The controller 8 is mounted on the frame 1 and is electrically connected to the heating element 4, temperature sensor 5, discharge mechanism 6, and stirring mechanism 7 to coordinate the operation of each component. In addition, the controller 8 can also control the start, stop, and speed adjustment of the stirring mechanism 7 according to the operator's instructions, and control the action of the cylinder 606 in the discharge mechanism 6 to achieve automated operation.

[0020] Work process: I. Preliminary Preparations The ground manganese iron ore slag and leaching agent are added into the mixing drum 2 in a certain proportion, and the cover plate at the top of the mixing drum 2 is closed to prepare for the subsequent acid leaching separation process.

[0021] II. Acid Leaching Separation Process 1. Temperature control The controller 8 receives temperature data from the temperature sensor 5 and controls the operating state of the heating element 4 according to the preset suitable reaction temperature. Because the heating element 4 is spirally coiled within the cavity formed by the outer wall of the mixing drum 2 and the insulation layer 3, it can uniformly heat the slag and leaching agent inside the mixing drum 2. The insulation layer 3 effectively reduces heat loss, allowing the temperature inside the mixing drum 2 to quickly and stably reach and remain within the suitable reaction temperature range, providing favorable temperature conditions for the leaching of manganese and iron.

[0022] 2. Stir and mix The controller 8 starts the motor 701 in the stirring mechanism 7, which drives the main shaft 702 to rotate. The main shaft 702 drives the driven shaft 704 to rotate through the belt drive mechanism, and at the same time, the rotation of the main shaft 702 itself also drives the connecting plate 703 fixed on it to rotate.

[0023] The agitator 706 at the bottom of the driven shaft 704 and connecting shaft 705 stirs the slag and leaching agent in the mixing cylinder 2, ensuring thorough mixing. The connecting rod 707 at the bottom of the main shaft 702 also rotates, and the scraper 708 and agitator blades 709 on the connecting rod 707 further enhance the stirring effect. The scraper 708 is made of polytetrafluoroethylene and has a gap of 1mm or less between it and the inner wall of the mixing cylinder 2. During stirring, the scraper 708 scrapes off the slag and leaching agent adhering to the inner wall of the mixing cylinder 2, preventing material accumulation and ensuring more uniform mixing. The agitator blades 709 ensure full contact between the slag particles and the leaching agent, thereby improving the leaching rate of manganese and iron.

[0024] III. Discharge Process After the acid leaching separation process is completed, the controller 8 controls the discharge mechanism 6 to operate. Specifically, the controller 8 sends a signal to the cylinder 606, causing the piston rod of the cylinder 606 to extend and push the slider 603 to slide on the slide rail 602 via the pulley 604. Since the arc-shaped sealing block 605 is installed at the front end of the slider 603 and its curvature matches the discharge port, the sliding of the slider 603 drives the arc-shaped sealing block 605 to move, thereby opening the discharge port. At this time, the material that has undergone acid leaching separation in the mixing cylinder 2 is smoothly discharged from the device through the arc-shaped guide plate at the bottom of the discharge bin 601 under the action of gravity, and enters the subsequent sedimentation recovery, washing and drying steps. The acid-resistant rubber layer covering the surface of the arc-shaped sealing block 605 can effectively prevent the material from corroding it and extend its service life.

[0025] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A manganese-iron ore slag recycling and processing device, characterized in that: The aforementioned manganese iron slag recycling and processing device includes a frame (1), a mixing cylinder (2), an insulation layer (3), an electric heating tube (4), a temperature sensor (5), a discharge mechanism (6), a stirring mechanism (7), and a controller (8). A support platform is provided on the frame (1), the mixing cylinder (2) is installed on the top of the support platform, and a cover plate is provided on the top of the mixing cylinder (2). The insulation layer (3) covers the outer wall of the mixing cylinder (2), forming a cavity sandwich between the two. The electric heating tube (4) is spirally coiled in the cavity sandwich. The temperature sensor (5) is installed on the side wall of the mixing cylinder (2) and located inside the mixing cylinder (2). A discharge port is opened on the side wall of the mixing cylinder (2), and the discharge mechanism (6) is installed at the discharge port. The stirring mechanism (7) is installed on the top of the frame (1) and extends through the cover plate into the mixing cylinder (2). The controller (8) is installed on the frame (1). The electric heating tube (4), the temperature sensor (5), the discharge mechanism (6), the stirring mechanism (7), and the controller (8) are electrically connected.

2. The manganese ore slag recycling treatment apparatus according to claim 1, characterized by: The discharge mechanism (6) includes a discharge bin (601), a slide rail (602), a slider (603), a pulley (604), an arc-shaped sealing block (605), and a cylinder (606). The discharge bin (601) is installed at the discharge port. An arc-shaped guide plate is provided at the bottom of the discharge bin (601). The slide rail (602) is installed at the top of the discharge bin (601). The slider (603) is slidably installed on the slide rail (602) through the pulley (604). The arc-shaped sealing block (605) is installed at the front end of the slider (603), and its curvature matches the discharge port. The cylinder (606) is installed on the side wall of the discharge bin (601). Its piston rod passes through the discharge bin (601) and is fixedly connected to the slider (603). The cylinder (606) is electrically connected to the controller (8).

3. The manganese-iron ore slag recycling and treatment device as described in claim 2, characterized in that: The stirring mechanism (7) includes a motor (701), a main shaft (702), a connecting plate (703), a driven shaft (704), a connecting shaft (705), a stirring paddle (706), a connecting rod (707), a scraper (708), and a stirring blade (709). The main shaft (702) is rotatably mounted on the top of the frame (1). The connecting plate (703) is fixedly mounted on the main shaft (702). The driven shaft (704) is rotatably mounted on one end of the connecting plate (703). The connecting shaft (705) is... 5) Fixedly installed on the other end of the connecting plate (703), the driven shaft (704) is connected to the main rotating shaft (702) through the belt drive mechanism. The driven shaft (704) and the connecting shaft (705) are both equipped with stirring paddles (706). The main rotating shaft (702) is provided with multiple connecting rods (707) at the bottom. A scraper (708) is installed on one part of the connecting rods (707), and stirring blades (709) are installed on another part of the connecting rods (707). The motor (701) is electrically connected to the controller (8).

4. The manganese ore tailings recovery processing device according to claim 3, characterized in that: The scraper (708) is made of polytetrafluoroethylene and the gap between it and the inner wall of the mixing cylinder (2) is 1 mm or less.

5. The manganese ore slag recycling treatment apparatus according to claim 3, characterized by: The surface of the arc-shaped sealing block (605) is covered with an acid-resistant rubber layer.

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