Rotary kiln for roasting molybdenum concentrate

Abstract

The utility model discloses a rotary kiln for roasting molybdenum concentrate. The rotary kiln comprises a bracket and a stirring mechanism, the front end and the rear end of the upper surface of the support are fixedly connected with bin covers through supporting legs, a rotary bin is rotationally connected between the two bin covers, and a rotating shaft is rotationally connected between the two bin covers. The stirring mechanism comprises fixing rings, screws, threaded cylinders, adjusting screws and stirring blades, the fixing rings are evenly and fixedly connected to the middle of the rotating shaft, the outer surfaces of the fixing rings are fixedly connected with the evenly-distributed screws, and the ends, away from the center of the rotating shaft, of the screws are in threaded connection with the threaded cylinders; according to the rotary kiln for molybdenum concentrate roasting, active stirring of molybdenum concentrate raw materials can be achieved, and the desulfurization efficiency of the molybdenum concentrate raw materials is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molybdenum concentrate roasting, in particular to a rotary kiln for roasting molybdenum concentrate. Background Art

[0002] The rotary kiln for roasting molybdenum concentrate is a type of metallurgical equipment and is widely used in the non-ferrous metallurgical industry. The main function of oxidative roasting of molybdenum concentrate is desulfurization, which is an exothermic reaction process. In the rotary kiln, the molybdenum concentrate moves evenly to the kiln tail as the kiln body rotates and enters the oxidative roasting section. It mixes with a large amount of oxygen in the air, allowing MoS2 (molybdenum disulfide) to fully react with oxygen and release a large amount of heat energy.

[0003] Some existing rotary kilns for roasting molybdenum concentrate use a method in which the molybdenum concentrate passively moves inside the rotary kiln due to inertia to move and react the molybdenum concentrate raw materials. This type of traditional rotary kiln for roasting molybdenum concentrate has some problems. For example, the molybdenum concentrate passively moves inside the rotary kiln due to inertia, which limits the freedom of movement of the molybdenum concentrate raw materials and affects the desulfurization effect of the molybdenum concentrate. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a rotary kiln for roasting molybdenum concentrate, which can realize active stirring of the molybdenum concentrate raw materials, greatly improve the desulfurization efficiency of the molybdenum concentrate raw materials, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a rotary kiln for roasting molybdenum concentrate, comprising a support and a stirring mechanism;

[0006] Bracket: The front and rear ends of the upper surface are fixedly connected to the bin cover through the legs, the rotary bin is rotatably connected between the two bin covers, and the rotating shaft is rotatably connected between the two bin covers;

[0007] Stirring mechanism: It includes a fixed ring, a screw, a threaded barrel, an adjusting screw and a stirring blade. The fixed ring is evenly fixedly connected to the middle of the rotating shaft. The outer surface of the fixed ring is fixedly connected with evenly distributed screws. The end of the screw away from the center of the rotating shaft is threadedly connected to the threaded barrel. The end of the threaded barrel away from the center of the rotating shaft is threadedly connected to the adjusting screw. The end of the adjusting screw away from the center of the rotating shaft is fixedly connected with a stirring blade, which can realize active stirring of the molybdenum concentrate raw material and greatly improve the desulfurization efficiency of the molybdenum concentrate raw material.

[0008] Furthermore, the stirring mechanism also includes ribs, which are symmetrically fixed to the outer surface of the threaded barrel, making it convenient for personnel to limit the threaded barrel and adjust the position of the stirring blade.

[0009] Furthermore, the front and rear ends of the upper surface of the bracket are fixedly connected with symmetrically distributed supports, the front and rear ends of the outer surface of the rotary bin are fixedly connected with slide rails, the upper ends of the supports are rotatably connected with auxiliary wheels, and the auxiliary wheels are slidably connected to the laterally adjacent slide rails to achieve stable rotation of the rotary bin.

[0010] Furthermore, a control switch group is provided at the front end of the upper surface of the bracket, and the input end of the control switch group is electrically connected to the external power supply to control various electrical appliances.

[0011] Furthermore, a driven gear is fixedly connected to the middle of the outer surface of the rotary bin, a motor 1 is provided in the middle of the upper surface of the bracket, a driving gear is fixedly connected to the rear end of the output shaft of the motor 1, the driving gear and the driven gear are meshed and connected, and the input end of the motor 1 is electrically connected to the output end of the control switch group to provide driving force for the rotation of the rotary bin.

[0012] Furthermore, the front end of the rotating shaft is fixedly connected to a driven wheel, the front end of the upper surface of the bracket is provided with motor 2, the front end of the output shaft of motor 2 is fixedly connected to the driving wheel, the driving wheel and the driven wheel are connected by three transmission belts, and the input end of motor 2 is electrically connected to the output end of the control switch group to provide driving force for the rotation of the rotating shaft.

[0013] Furthermore, it also includes a feed bin, which is arranged at the upper end of the front bin cover, a bin door is provided at the lower end of the rear bin cover, and an air inlet pipe is provided at the right end of the front bin cover. The front end of the air inlet pipe is connected to the air outlet of the external burner, and the input end of the external burner is electrically connected to the output end of the control switch group, providing a channel for the feeding and discharging of molybdenum concentrate, and at the same time providing heat for the roasting of the molybdenum concentrate.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the rotary kiln for roasting molybdenum concentrate has the following advantages:

[0015] The threaded barrel is used to connect the screw and the corresponding adjusting screw, thereby enabling rapid adjustment of the stirring rod length, realizing active stirring of the molybdenum concentrate raw materials, improving the freedom of movement of the molybdenum concentrate raw materials, meeting different desulfurization requirements of the molybdenum concentrate raw materials, and greatly improving the desulfurization efficiency of the molybdenum concentrate raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the interior of the utility model;

[0018] Figure 3 It is a structural diagram of the rear side of the utility model;

[0019] Figure 4This is an enlarged structural diagram of point A of the present invention.

[0020] In the figure: 1 bracket, 2 bin cover, 3 rotary bin, 4 rotating shaft, 5 stirring mechanism, 51 fixed ring, 52 screw, 53 threaded barrel, 54 adjusting screw, 55 stirring blade, 56 rib, 6 slide rail, 7 support, 8 auxiliary wheel, 9 driven gear, 10 motor 1, 11 driving gear, 12 driven wheel, 13 driving wheel, 14 motor 2, 15 air intake pipe, 16 feeding bin, 17 bin door, 18 control switch group. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0022] See also Figure 1-4 , this embodiment provides a technical solution: a rotary kiln for roasting molybdenum concentrate, comprising a support 1 and a stirring mechanism 5;

[0023] Bracket 1: The front and rear ends of its upper surface are fixedly connected to the bin cover 2 through the support legs. The rotary bin 3 is rotatably connected between the two bin covers 2. The rotating shaft 4 is rotatably connected between the two bin covers 2. The front end of the upper surface of the bracket 1 is provided with a control switch group 18. The input end of the control switch group 18 is electrically connected to the external power supply.

[0024] The stirring mechanism 5 includes a fixed ring 51, a screw 52, ​​a threaded barrel 53, an adjusting screw 54 and a stirring blade 55. The fixed ring 51 is evenly fixedly connected to the middle of the rotating shaft 4. The outer surface of the fixed ring 51 is fixedly connected to the evenly distributed screws 52. The ends of the screws 52 away from the center of the rotating shaft 4 are threadedly connected to the threaded barrel 53. The ends of the threaded barrel 53 away from the center of the rotating shaft 4 are threadedly connected to the adjusting screw 54. The ends of the adjusting screws 54 away from the center of the rotating shaft 4 are fixedly connected to the stirring blade 55. The stirring mechanism 5 also includes ribs 56. The ribs 56 are symmetrically fixed to the outer surface of the threaded barrel 53, and the threaded barrel 53 is limited by the ribs 56. Then, the corresponding adjusting screw 54 is rotated by the stirring blade 55, thereby adjusting the relative position of the adjusting screw 54 and the laterally adjacent threaded barrel 53. When the adjusting screw 54 and the laterally adjacent threaded barrel 53 reach the desired position, the adjusting screw 54 is stopped, and the threaded barrel 53 is rotated by the ribs 56 to adjust the relative position of the threaded barrel 53 and the laterally adjacent screw 53, and finally the position of the stirring blade 55 is adjusted.

[0025] Among them: the front and rear ends of the upper surface of the bracket 1 are fixedly connected with symmetrically distributed supports 7, the front and rear ends of the outer surface of the rotary warehouse 3 are fixedly connected with slide rails 6, the upper ends of the supports 7 are rotatably connected with auxiliary wheels 8, and the auxiliary wheels 8 are slidably connected to the laterally adjacent slide rails 6. The middle part of the outer surface of the rotary warehouse 3 is fixedly connected with a driven gear 9, and the middle part of the upper surface of the bracket 1 is provided with a motor 10. The rear end of the output shaft of the motor 10 is fixedly connected with a driving gear 11. The driving gear 11 and the driven gear 9 are meshed and connected. The input end of the motor 10 is electrically connected to the output end of the control switch group 18. The operation of the motor 10 is realized by the control switch group 18. The output shaft of the motor 10 rotates to drive the driving gear 11 to rotate, and then drives the driven gear 9 to rotate. The rotation of the driven gear 9 drives the rotary warehouse 3 to rotate. At the same time, the auxiliary wheels 8 rotate relative to the laterally adjacent slide rails 6, providing support and rotation guide for the rotary warehouse 3;

[0026] Among them: the front end of the rotating shaft 4 is fixedly connected to the driven wheel 12, the front end of the upper surface of the bracket 1 is provided with a motor 2 14, the front end of the output shaft of the motor 2 14 is fixedly connected to the driving wheel 13, the driving wheel 13 and the driven wheel 12 are connected by three transmission belts, the input end of the motor 2 14 is electrically connected to the output end of the control switch group 18, the motor 2 14 is operated by the control switch group 18, the output shaft of the motor 2 14 rotates to drive the driving wheel 13 to rotate, the driving wheel 13 drives the driven wheel 12 to rotate through the transmission belt, the driven wheel 12 rotates to drive the rotating shaft 4 to rotate, and the rotating shaft 4 rotates The rotation of the fixed ring 51 drives the evenly distributed fixed ring 51 to rotate, and the rotation of the fixed ring 51 drives the evenly distributed screw 52 to rotate. The rotation of the screw 52 drives the laterally adjacent threaded barrel 53 to rotate around the central axis of the rotating shaft 4. The rotation of the threaded barrel 53 drives the laterally adjacent adjusting screw 54 to rotate around the central axis of the rotating shaft 4, and finally realizes the rotation of the stirring blade 55 around the central axis of the rotating shaft 4. At the same time, the ribs 56 follow the corresponding threaded barrel 53 to rotate around the central axis of the rotating shaft 4, thereby realizing the stirring of the molybdenum concentrate raw materials in the middle and outer layers of the rotary bin 3, greatly improving the freedom of movement of the molybdenum concentrate raw materials;

[0027] Among them: it also includes a feed bin 16, the feed bin 16 is arranged at the upper end of the front bin cover 2, the lower end of the rear bin cover 2 is provided with a bin door 17, and the right end of the front bin cover 2 is provided with an air intake pipe 15. The front end of the air intake pipe 15 is connected to the air outlet of the external burner, and the input end of the external burner is electrically connected to the output end of the control switch group 18. The external burner is operated by the control switch group 18, and the external burner provides a heat source to the inside of the rotary bin 3 through the air intake pipe 15, thereby realizing the roasting and desulfurization of the molybdenum concentrate.

[0028] The working principle of the rotary kiln for roasting molybdenum concentrate provided by the present invention is as follows: when working, the personnel first place the bracket 1, the rotary bin 3 and other mechanisms stably in the horizontal working area. After the placement is stable, the personnel first limit the threaded barrel 53 by the ribs 56, and then the personnel rotate the corresponding adjusting screw 54 by the stirring piece 55, thereby adjusting the relative position of the adjusting screw 54 and the laterally adjacent threaded barrel 53. When the adjusting screw 54 and the laterally adjacent threaded barrel 53 reach the required position, the personnel stop rotating the adjusting screw 54 and pass The threaded barrel 53 is rotated through the ribs 56 to adjust the relative position of the threaded barrel 53 and the laterally adjacent screw 53, and finally the position adjustment of the stirring blade 55 is achieved. When the stirring blade 55 reaches the desired position, the personnel stops rotating the threaded barrel 53, and then the personnel add the molybdenum concentrate raw material into the rotary bin 3 through the feed bin 16. Then the personnel realizes the operation of the motor 10 by controlling the switch group 18. The output shaft of the motor 10 rotates to drive the driving gear 11 to rotate, and then drives the driven gear 9 to rotate. The driven gear 9 rotates to drive the rotary bin 3 to rotate, and at the same time the auxiliary wheel 8 rotates relative to the laterally adjacent slide rails 6 to provide support and rotation guide for the rotary bin 3, and then the personnel controls the switch group 18 to realize the operation of the motor 2 14. The output shaft of the motor 2 14 rotates to drive the driving wheel 13, and the driving wheel 13 drives the driven wheel 12 to rotate through the transmission belt. The driven wheel 12 rotates and drives the rotating shaft 4 to rotate. The rotation of the rotating shaft 4 drives the evenly distributed fixed rings 51 to rotate. The rotation of the fixed rings 51 drives the evenly distributed screws 52 to rotate. The rotation of the screws 52 drives the laterally adjacent threaded cylinders 53 to rotate around the central axis of the rotating shaft 4. The rotation of the threaded barrel 53 drives the laterally adjacent adjusting screws 54 to rotate around the central axis of the rotating shaft 4, and finally realizes the rotation of the stirring blade 55 around the central axis of the rotating shaft 4. At the same time, the ribs 56 follow the corresponding threaded barrel 53 to rotate around the central axis of the rotating shaft 4, thereby realizing the stirring of the middle and outer layers of the molybdenum concentrate raw materials in the rotary bin 3, greatly improving the freedom of movement of the molybdenum concentrate raw materials, and at the same time controlling the switch group 18 to realize the operation of the external burner, and the external burner provides a heat source to the inside of the rotary bin 3 through the air inlet pipe 15, thereby realizing the roasting and desulfurization of the molybdenum concentrate.

[0029] It is worth noting that the control switch group 18 disclosed in the above embodiment is provided with control buttons corresponding to the motor 1 10 , the motor 2 14 and the external burner and controlling the switches thereof.

[0030] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rotary kiln for roasting molybdenum concentrate, characterized in that: It comprises a bracket (1) and a stirring mechanism (5); Bracket (1): The front and rear ends of the upper surface of the bracket are fixedly connected to bin covers (2) via supporting legs, a rotary bin (3) is rotatably connected between the two bin covers (2), and a rotating shaft (4) is rotatably connected between the two bin covers (2); The stirring mechanism (5) comprises a fixing ring (51), a screw (52), a threaded barrel (53), an adjusting screw (54) and a stirring blade (55). The fixing ring (51) is evenly fixedly connected to the middle of the rotating shaft (4). The outer surface of the fixing ring (51) is fixedly connected to the screws (52) distributed evenly. The ends of the screws (52) away from the center of the rotating shaft (4) are threadedly connected to the threaded barrel (53). The ends of the threaded barrel (53) away from the center of the rotating shaft (4) are threadedly connected to the adjusting screw (54). The ends of the adjusting screws (54) away from the center of the rotating shaft (4) are fixedly connected to the stirring blade (55).

2. The rotary kiln for roasting molybdenum concentrate according to claim 1, characterized in that: The stirring mechanism (5) further comprises ribs (56), and the ribs (56) are respectively and symmetrically fixedly connected to the outer surface of the threaded barrel (53).

3. The rotary kiln for roasting molybdenum concentrate according to claim 1, characterized in that: The front and rear ends of the upper surface of the bracket (1) are fixedly connected to symmetrically distributed supports (7), the front and rear ends of the outer surface of the rotary bin (3) are fixedly connected to slide rails (6), the upper ends of the supports (7) are rotatably connected to auxiliary wheels (8), and the auxiliary wheels (8) are slidably connected to the laterally adjacent slide rails (6).

4. The rotary kiln for roasting molybdenum concentrate according to claim 1, characterized in that: A control switch group (18) is provided at the front end of the upper surface of the bracket (1), and an input end of the control switch group (18) is electrically connected to an external power supply.

5. The rotary kiln for roasting molybdenum concentrate according to claim 4, characterized in that: A driven gear (9) is fixedly connected to the middle of the outer surface of the rotary bin (3), a motor (10) is provided in the middle of the upper surface of the bracket (1), a driving gear (11) is fixedly connected to the rear end of the output shaft of the motor (10), the driving gear (11) and the driven gear (9) are meshed and connected, and the input end of the motor (10) is electrically connected to the output end of the control switch group (18).

6. The rotary kiln for roasting molybdenum concentrate according to claim 4, characterized in that: The front end of the rotating shaft (4) is fixedly connected to a driven wheel (12), the front end of the upper surface of the bracket (1) is provided with a second motor (14), the front end of the output shaft of the second motor (14) is fixedly connected to a driving wheel (13), the driving wheel (13) and the driven wheel (12) are connected by three transmission belts, and the input end of the second motor (14) is electrically connected to the output end of the control switch group (18).

7. The rotary kiln for roasting molybdenum concentrate according to claim 4, characterized in that: The invention also includes a feed bin (16), wherein the feed bin (16) is arranged at the upper end of the front bin cover (2), a bin door (17) is arranged at the lower end of the rear bin cover (2), an air inlet pipe (15) is arranged at the right end of the front bin cover (2), the front end of the air inlet pipe (15) is communicated with the air outlet of the external burner, and the input end of the external burner is electrically connected to the output end of the control switch group (18).

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