Molybdenum concentrate refining furnace

Abstract

The utility model discloses a molybdenum concentrate refining furnace. The molybdenum concentrate refining furnace comprises a rack, the upper end of the rack is rotationally connected with a furnace body, a heat insulation layer is arranged on the inner wall of the furnace body, two stirring blades are arranged in the heat insulation layer and are distributed in a crossed mode, long holes which are evenly distributed are formed in the left ends of the stirring blades, a combustor is arranged at the left end of the rack, and a combustion nozzle of the combustor extends into the furnace body. The molybdenum concentrate refining furnace comprises a machine frame, a burner is arranged on the machine frame, a heat insulation sheet rotationally connected with the furnace body is arranged on a burner nozzle of the burner, an oxygen pipe is arranged at the lower end of the heat insulation sheet, a controller is arranged on the front side face of the machine frame, the input end of the burner is electrically connected with the output end of the controller, the input end of the controller is electrically connected with an external power source, and a motor is arranged at the left end of the machine frame. And the furnace body can rotate to turn over molybdenum concentrate, so that uniform heating of the molybdenum concentrate and combination of the molybdenum concentrate and oxygen are facilitated, and a good refining effect on the molybdenum concentrate is achieved.

Description

Technical Field

[0001] This utility model relates to the field of molybdenum concentrate processing technology, specifically a molybdenum concentrate refining furnace. Background Technology

[0002] Molybdenum concentrate can be used to manufacture high-temperature alloys and refractory materials, which play an important role in the foundry industry. High-temperature alloys and refractory materials have characteristics such as high temperature resistance and corrosion resistance, and are widely used in aerospace, metallurgy, electronics and other industries. In the processing of molybdenum concentrate, a refining furnace is used to oxidize and roast the molybdenum concentrate. Oxidation roasting is to treat the molybdenum concentrate at high temperature, usually within a temperature range of 500-550℃ for 6-8 hours. During this process, molybdenum disulfide in the molybdenum concentrate is oxidized to molybdenum trioxide and sulfur dioxide. The existing molybdenum concentrate refining furnace is generally fixed, and the molybdenum concentrate accumulates inside the furnace. Therefore, it is generally impossible to turn the molybdenum concentrate during the heating process. The heating uniformity of the molybdenum concentrate is generally not good and it is not conducive to contact with oxygen, resulting in a poor refining effect. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a molybdenum concentrate refining furnace. The furnace body can rotate to turn the molybdenum concentrate, which facilitates uniform heating of the molybdenum concentrate and its combination with oxygen, thereby achieving a good refining effect on the molybdenum concentrate and effectively solving the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a molybdenum concentrate refining furnace, including a frame;

[0005] The frame is rotatably connected to the furnace body at its upper end. The inner wall of the furnace body is equipped with a heat insulation layer, and two stirring blades are arranged crosswise inside the heat insulation layer. The left end of the stirring blades has evenly distributed elongated holes. The left end of the frame is equipped with a burner, and the burner nozzle extends into the furnace body. The burner nozzle is equipped with a heat insulation plate that is rotatably connected to the furnace body. The lower end of the heat insulation plate is equipped with an oxygen pipe. The front side of the frame is equipped with a controller. The input end of the burner is electrically connected to the output end of the controller, and the input end of the controller is electrically connected to an external power source. The furnace body can rotate to agitate the molybdenum concentrate, which facilitates uniform heating of the molybdenum concentrate and its combination with oxygen, thereby achieving a good refining effect on the molybdenum concentrate.

[0006] Furthermore, a motor is provided at the left end of the frame, a gear is provided on the output shaft of the motor, a gear ring is provided on the outer arc surface of the furnace body, the gear and the gear ring are meshed and connected, and the input end of the motor is electrically connected to the output end of the controller to facilitate driving the rotation of the furnace body.

[0007] Furthermore, a blower is provided at the left end of the frame. The outlet of the blower is connected to the lower end of the oxygen pipe, and the input of the blower is electrically connected to the output of the controller to deliver air and increase the oxygen content.

[0008] Furthermore, a thermocouple is provided at the detection hole at the upper left side of the heat insulation sheet, and the output end of the thermocouple is electrically connected to the input end of the controller to facilitate the monitoring of the heating temperature.

[0009] Furthermore, a movable frame is slidably connected to the right end of the frame, and a smoke outlet pipe is provided in the middle of the upper end of the movable frame. A sealing gasket is rotatably connected to the left end of the smoke outlet pipe. The sealing gasket is set to cooperate with the right end of the furnace body to facilitate the collection of flue gas.

[0010] Furthermore, an electric push rod is provided at the right end of the frame. The telescopic end of the electric push rod is fixedly connected to the lower end of the movable frame, and the input end of the electric push rod is electrically connected to the output end of the controller to facilitate the control of the movement of the movable frame.

[0011] Furthermore, the left side of the mobile frame is provided with a chute plate to facilitate the collection of materials.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This molybdenum concentrate refining furnace has the following advantages:

[0013] The furnace body drives the stirring plates to rotate synchronously through the heat insulation layer. The counterclockwise rotation of the stirring plates pushes the molybdenum concentrate to the left, bringing it closer to the heat source for heating. At the same time, some of the molybdenum concentrate will pass through the elongated holes and fall down. The rotation of the furnace body can turn the molybdenum concentrate over, which facilitates the uniform heating of the molybdenum concentrate and its combination with oxygen, thereby achieving a good refining effect on the molybdenum concentrate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the furnace body of this utility model.

[0016] In the diagram: 1. Frame, 2. Furnace body, 3. Insulation layer, 4. Stirring plate, 5. Long hole, 6. Burner, 7. Oxygen pipe, 8. Controller, 9. Blower, 10. Motor, 11. Gear, 12. Gear ring, 13. Insulation plate, 14. Thermocouple, 15. Moving frame, 16. Smoke outlet pipe, 17. Sealing gasket, 18. Electric push rod, 19. Sluice plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-2 This embodiment provides a technical solution: a molybdenum concentrate refining furnace, including a frame 1;

[0019] Frame 1: A furnace body 2 is rotatably connected to its upper end. Support wheels rotatably connected to the upper end of the furnace body 2 provide rotational support for the furnace body 2. Frame 1 provides mounting positions for the upper components. A heat insulation layer 3 is provided on the inner wall of the furnace body 2. Molybdenum concentrate powder is added to the interior of the heat insulation layer 3 from the right side of the furnace body 2. The heat insulation layer 3 is a silica heat insulation layer. Two stirring blades 4 are arranged inside the heat insulation layer 3, intersecting each other. The left end of each stirring blade 4 has evenly distributed elongated holes 5. The furnace body 2 drives the stirring blades 4 to rotate synchronously through the heat insulation layer 3. The counter-clockwise rotation of the stirring blades 4 pushes the molybdenum concentrate to the left, bringing it closer to the heat source for heating. Simultaneously, some of the molybdenum concentrate will pass through the elongated holes 5 and fall down, allowing for agitation of the molybdenum concentrate, facilitating heating and combination with oxygen. The refining process is effective. A burner 6 is located at the left end of the frame 1, with its nozzle extending into the furnace body 2. When the burner 6 is operational, fuel is supplied externally, and the flame burns inside the insulation layer 3 to heat the molybdenum concentrate. The burner 6's nozzle is equipped with a ceramic insulation plate 13, which is rotatably connected to the furnace body 2 to reduce heat loss. An oxygen pipe 7 is located at the lower end of the insulation plate 13. A controller 8 is located on the front side of the frame 1. The input of the burner 6 is electrically connected to the output of the controller 8, and the input of the controller 8 is electrically connected to an external power source. A motor 10 is located at the left end of the frame 1, with a gear 11 on its output shaft. A gear ring 12 is located on the outer arc surface of the furnace body 2, and the gear 11 meshes with the gear ring 12. The input of motor 10 is electrically connected to the output of controller 8. When motor 10 operates, its output shaft drives gear 11 to rotate. Gear 11, through gear ring 12, drives furnace body 2 to rotate counterclockwise. A blower 9 is located at the left end of frame 1. The outlet of blower 9 is connected to the lower end of oxygen pipe 7. The input of blower 9 is electrically connected to the output of controller 8. Blower 9 delivers air into insulation layer 3 through oxygen pipe 7, increasing the oxygen content inside the furnace cavity. A thermocouple 14 is located at the detection hole on the upper left side of insulation sheet 13. The output of thermocouple 14 is electrically connected to the input of controller 8. Thermocouple 14 converts the temperature information inside insulation layer 3 into an electrical signal and transmits it to controller 8, allowing for monitoring of the heating temperature. A sliding door is located at the right end of frame 1. A movable frame 15 is connected to the furnace body 2. A smoke outlet pipe 16 is located at the middle of the upper end of the movable frame 15. A sealing gasket 17 is rotatably connected to the left end of the smoke outlet pipe 16. The sealing gasket 17 is fitted to the right end of the furnace body 2. An electric push rod 18 is located at the right end of the frame 1. The telescopic end of the electric push rod 18 is fixedly connected to the lower end of the movable frame 15. The input end of the electric push rod 18 is electrically connected to the output end of the controller 8. When the telescopic end of the electric push rod 18 extends, it pushes the movable frame 15 to slide to the left along the slide rail at the right end of the frame 1. The movable frame 15 drives the sealing gasket 17 and the smoke outlet pipe 16 to move to the left synchronously. The left side of the sealing gasket 17 contacts the right end of the furnace body 2. The sealing gasket 17 is a ceramic fiber gasket that seals the right end of the furnace body 2. The sealing gasket 17 rotates relative to the smoke outlet pipe 16 as the furnace body 2 rotates.To facilitate the discharge of exhaust gas from the flue pipe 16, a chute plate 19 is provided on the left side of the movable frame 15. The stirring blade 4 rotates clockwise, pushing the refined molybdenum concentrate to the right, then discharging it from the right end of the furnace body 2, where it falls onto the chute plate 19 and is then discharged forward.

[0020] The working principle of the molybdenum concentrate refining furnace provided by this utility model is as follows: Molybdenum concentrate powder is added to the interior of the insulation layer 3 from the right side of the furnace body 2. After the addition is completed, the controller 8 is activated, and the telescopic end of the electric push rod 18 extends to push the moving frame 15 to slide to the left along the slide rail at the right end of the frame 1. The moving frame 15 drives the sealing gasket 17 and the flue pipe 16 to move to the left synchronously. The left side of the sealing gasket 17 contacts the right end of the furnace body 2, and the burner 6 is activated. With fuel supplied externally, the flame burns inside the insulation layer 3 to heat the molybdenum concentrate. Thermocouple 14 converts the temperature information inside the insulation layer 3 into an electrical signal and transmits it to the controller 8, which can monitor the heating temperature. At the same time, blower 9 operates to supply air to the interior of the insulation layer 3 through oxygen pipe 7, increasing the oxygen content inside the furnace cavity, thereby oxidizing and roasting the molybdenum concentrate. The molybdenum disulfide in the molybdenum concentrate is oxidized into molybdenum trioxide and sulfur dioxide. The process achieves the refining of molybdenum concentrate. Simultaneously, the motor 10 operates, and the output shaft of the motor 10 drives the gear 11 to rotate. The gear 11 drives the furnace body 2 to rotate counterclockwise through the gear ring 12. The furnace body 2 drives the stirring plate 4 to rotate synchronously through the heat insulation layer 3. During the counterclockwise rotation of the stirring plate 4, the molybdenum concentrate is pushed to the left and brought closer to the heat source for heating. At the same time, some of the molybdenum concentrate will pass through the elongated hole 5 and fall down, which can turn the molybdenum concentrate, facilitate heating and combination with oxygen, and thus achieve a good refining effect. After refining and cooling, the telescopic end of the electric push rod 18 retracts, driving the sealing gasket 17 and the chute plate 19 to move to the right. The chute plate 19 moves to the discharge port at the right end of the furnace body 2. Then, the output shaft of the motor 10 rotates in the opposite direction, driving the furnace body 2 to rotate clockwise. The clockwise rotation of the stirring plate 4 pushes the refined molybdenum concentrate to the right and then discharges it from the right end of the furnace body 2, falling onto the chute plate 19 and then being discharged forward.

[0021] It is worth noting that the burner 6, controller 8, blower 9, motor 10, thermocouple 14, and electric actuator 18 disclosed in the above embodiments can be freely configured according to the actual application scenario. The burner 6 can be a burner of model RS44, the core chip of controller 8 can be a single-chip microcomputer of model STM32H743, the blower 9 can be a blower of model RB-21D-1, the motor 10 can be a three-phase asynchronous motor of model Y112M-4, the thermocouple 14 can be a thermocouple of model SKN-1150, and the electric actuator 18 can be an electric actuator of model LX-700. The controller 8 controls the operation of burner 6, blower 9, motor 10, thermocouple 14, and electric actuator 18 using methods commonly used in the prior art.

[0022] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A molybdenum concentrate refining furnace, characterized in that: Includes rack (1); The frame (1) is rotatably connected to the furnace body (2) at its upper end. The inner wall of the furnace body (2) is provided with a heat insulation layer (3). The inside of the heat insulation layer (3) is provided with two stirring blades (4). The two stirring blades (4) are distributed in a cross pattern. The left end of the stirring blades (4) is provided with evenly distributed elongated holes (5). The left end of the frame (1) is provided with a burner (6). The burner nozzle (6) extends into the interior of the furnace body (2). The burner nozzle (6) is provided with a heat insulation plate (13) rotatably connected to the furnace body (2). The lower end of the heat insulation plate (13) is provided with an oxygen pipe (7). The front side of the frame (1) is provided with a controller (8). The input end of the burner (6) is electrically connected to the output end of the controller (8). The input end of the controller (8) is electrically connected to an external power source.

2. The molybdenum concentrate refining furnace according to claim 1, characterized in that: The left end of the frame (1) is provided with a motor (10), the output shaft of the motor (10) is provided with a gear (11), the outer arc surface of the furnace body (2) is provided with a gear ring (12), the gear (11) and the gear ring (12) are meshed and connected, and the input end of the motor (10) is electrically connected to the output end of the controller (8).

3. The molybdenum concentrate refining furnace according to claim 1, characterized in that: A blower (9) is provided at the left end of the frame (1). The outlet of the blower (9) is connected to the lower end of the oxygen pipe (7). The input end of the blower (9) is electrically connected to the output end of the controller (8).

4. The molybdenum concentrate refining furnace according to claim 1, characterized in that: A thermocouple (14) is provided at the detection hole on the upper left side of the heat insulation sheet (13), and the output end of the thermocouple (14) is electrically connected to the input end of the controller (8).

5. A molybdenum concentrate refining furnace according to claim 1, characterized in that: The right end of the frame (1) is slidably connected to a movable frame (15). The upper middle part of the movable frame (15) is provided with a smoke outlet pipe (16). The left end of the smoke outlet pipe (16) is rotatably connected to a sealing gasket (17). The sealing gasket (17) is fitted to the right end of the furnace body (2).

6. A molybdenum concentrate refining furnace according to claim 5, characterized in that: The right end of the frame (1) is provided with an electric push rod (18). The telescopic end of the electric push rod (18) is fixedly connected to the lower end of the moving frame (15). The input end of the electric push rod (18) is electrically connected to the output end of the controller (8).

7. A molybdenum concentrate refining furnace according to claim 5, characterized in that: The left side of the mobile frame (15) is provided with a chute plate (19).

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