Rare earth acid dissolving slag roasting treatment device

Abstract

The utility model relates to the technical field of roasting treatment, and particularly discloses a rare earth acid dissolving slag roasting treatment device which comprises a kiln body and a heating section, one end of the kiln body is rotationally connected with a butt-joint disc, the butt-joint disc is connected with a feeding pipe, and a discharging mechanism is arranged at the end, away from the butt-joint disc, of the kiln body; the outer side of the end, close to the butt joint disc, of the kiln body is sleeved with a gear ring, the gear ring is connected with the kiln body through a plurality of bolts, a gear meshed with the gear ring is arranged on one side of the kiln body, and driving equipment used for driving the gear to rotate is arranged on one side of the kiln body; the top of the feeding pipe is connected with a hopper, and an auger feeding mechanism is arranged in the feeding pipe; materials to be roasted are input from the hopper and then are driven to be uniformly fed into the kiln body in the working process of the auger feeding mechanism, and the feeding pipe is matched with the auger feeding mechanism, so that feeding uniformity and sealing performance can be improved, gas overflow in the roasting process is reduced, and continuous and stable feeding is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of roasting treatment, in particular to a rare earth acid slag roasting treatment device. Background Art

[0002] During the removal of impurity residue from ionic rare earth ores, high-temperature treatment is used to volatilize harmful substances from rare earth acid slag. High-temperature roasting can also volatilize harmful substances such as fluorine and chlorine from rare earth acid slag, thereby reducing its pollution to the environment. During the roasting process, some rare earth elements may exist in the form of compounds. Through appropriate treatment, these rare earth elements can be recovered and resource utilization can be improved. During high-temperature treatment, a rotary kiln is used for roasting. In a rotary kiln, roasting generally involves heating materials such as ores, concentrates, or metal compounds to a temperature below their melting point to induce chemical reactions such as oxidation, reduction, magnetization, or calcination.

[0003] During the roasting process, the temperature inside the rotary kiln is extremely high, and the gases generated (such as steam, volatile organic compounds, etc.) form a certain pressure under high temperature. The gas will overflow from the feed port. The overflow of gas and heat will interfere with the feeding operation and affect the temperature inside the kiln.

[0004] In view of the above problems, a rare earth acid slag roasting treatment device is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a rare earth acid slag roasting treatment device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A rare earth acid slag roasting treatment device, comprising a kiln body and a heating section;

[0008] One end of the kiln body is rotatably connected to a docking plate, the docking plate is connected to a feed pipe, and an end of the kiln body away from the docking plate is provided with a discharge mechanism;

[0009] A gear ring is sleeved on the outer side of the kiln body near one end of the docking plate, and the gear ring is connected to the kiln body through a plurality of bolts. A gear meshing with the gear ring is provided on one side of the kiln body, and a driving device for driving the gear to rotate is provided on one side of the kiln body;

[0010] The top of the feed pipe is connected to the hopper, an auger feeding mechanism is provided in the feed pipe, and the bottom of the feed pipe is connected to a mounting seat, on which a linkage mechanism for driving the auger feeding mechanism is installed.

[0011] In an optional solution: the discharging mechanism includes a discharging box, one side of which is provided with a connection port for rotating with the kiln body, the top of the discharging box is connected to an exhaust pipe, and the bottom of the discharging box is connected to a discharge pipe.

[0012] In an optional solution, the auger feeding mechanism includes a center rod rotatably mounted in a feed pipe, auger blades are mounted on the center rod, and the inner cavity of the feed pipe is connected to the inner cavity of the kiln body.

[0013] In an optional solution: the linkage mechanism includes a second pulley and a first pulley, one end of the center rod extends out of a feed pipe to connect to the second pulley, the gear shaft end is connected to a transmission rod, the transmission rod is connected to the first pulley at one end away from the gear, the second pulley is connected to the first pulley through a belt drive, and the transmission rod is rotatably mounted on a mounting seat.

[0014] In an optional solution, the inner wall of the kiln body is connected to a spiral paddle.

[0015] In an optional solution: a fixing ring is connected to the outside of the kiln body, a support seat is provided at the bottom of the kiln body, two sets of rollers are rotatably mounted on the support seat, the rollers are in contact with the fixing ring, and at least two sets of fixing rings are connected to the kiln body.

[0016] In an optional solution: a support frame for supporting the gear to rotate stably is provided on one side of the kiln body.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In the utility model, the material to be roasted is input from the hopper, and then the auger feeding mechanism drives the material to be evenly fed into the kiln body. The feed pipe cooperates with the auger feeding mechanism to improve the uniformity and sealing of the feed, reduce the overflow of gas during the roasting process, and facilitate continuous and stable feeding.

[0019] In the utility model, the driving device drives the gear to rotate, thereby driving the gear ring to rotate. During the rotation of the kiln body, the material is roasted and then discharged from the discharging mechanism for continuous roasting.

[0020] The toothed ring in the utility model is fixed to the outside of the kiln body by bolts, which is convenient for replacement in case of subsequent damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural diagram of the present utility model.

[0022] Figure 2 It is a structural diagram of the discharging mechanism in the present utility model.

[0023] Figure 3 It is a schematic diagram of the structure inside the spiral pick in the utility model.

[0024] Figure 4 It is a schematic diagram of the local structure of the utility model.

[0025] Figure 5 This is a schematic diagram of the structure inside the feed pipe of the present invention.

[0026] In the figure: 11. Kiln body; 12. Heating section; 13. Gear ring; 14. Docking plate; 15. Feed pipe; 16. Gear; 17. Driving device; 18. Discharge box; 19. Exhaust pipe; 20. Discharge pipe; 21. Support seat; 22. Roller; 23. Fixed ring; 24. Spiral paddle; 25. Hopper; 26. Second pulley; 27. Belt; 28. First pulley; 29. ​​Transmission rod; 30. Mounting seat; 31. Center rod; 32. Auger blade. DETAILED DESCRIPTION

[0027] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0028] 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.

[0029] See also Figure 1-Figure 5 In this embodiment, a rare earth acid slag roasting treatment device includes a kiln body 11 and a heating section 12;

[0030] One end of the kiln body 11 is rotatably connected to a docking plate 14, and a feed pipe 15 is connected to the docking plate 14. A discharge mechanism is provided at the end of the kiln body 11 away from the docking plate 14.

[0031] A gear ring 13 is sleeved on the outer side of the kiln body 11 near one end of the docking plate 14. The gear ring 13 is connected to the kiln body 11 by a plurality of bolts. A gear 16 meshing with the gear ring 13 is provided on one side of the kiln body 11. A driving device 17 for driving the gear 16 to rotate is provided on one side of the kiln body 11.

[0032] The top of the feed pipe 15 is connected to the hopper 25, and an auger feeding mechanism is provided in the feed pipe 15. The bottom of the feed pipe 15 is connected to the mounting base 30, and a linkage mechanism for driving the auger feeding mechanism is installed on the mounting base 30;

[0033] In this embodiment, the material to be roasted is input from the hopper 25, and then the auger feeding mechanism drives the material to be evenly fed into the kiln body 11. The driving device 17 drives the gear 16 to rotate, thereby driving the gear ring 13 to rotate. During the rotation of the kiln body 11, the material is roasted and then output from the discharging mechanism.

[0034] like Figure 2 As shown, in another embodiment, the discharging mechanism includes a discharging box 18, and a connection port for rotating with the kiln body 11 is provided on one side of the discharging box 18, the top of the discharging box 18 is connected to the exhaust pipe 19, and the bottom of the discharging box 18 is connected to the discharge pipe 20; the material in the kiln body 11 is transported to the discharging box 18, and the gas during roasting is output from the exhaust pipe 19. In actual use, the exhaust pipe 19 can be connected to an external exhaust gas treatment equipment, and the material after roasting treatment is discharged from the discharge pipe 20.

[0035] In another embodiment, the auger feeding mechanism includes a center rod 31 rotatably mounted in the feed pipe 15, an auger blade 32 is mounted on the center rod 31, and the inner cavity of the feed pipe 15 is connected to the inner cavity of the kiln body 11;

[0036] When the center rod 31 rotates, it drives the auger blades 32 to rotate to feed the material.

[0037] In another embodiment, the linkage mechanism includes a second pulley 26 and a first pulley 28, one end of the center rod 31 extends out of the feed pipe 15 and is connected to the second pulley 26, the axial end of the gear 16 is connected to the transmission rod 29, the end of the transmission rod 29 away from the gear 16 is connected to the first pulley 28, the second pulley 26 is connected to the first pulley 28 through a belt 27, and the transmission rod 29 is rotatably mounted on the mounting base 30;

[0038] The gear 16 rotates, driving the first pulley 28 to rotate through the transmission rod 29, and driving the second pulley 26 to rotate through the transmission of the belt 27, thereby driving the center rod 31 to rotate.

[0039] like Figure 3 As shown, in another embodiment, the inner wall of the kiln body 11 is connected to a spiral paddle 24; when the kiln body 11 rotates, the spiral paddle 24 can play a role in paddle the material and assist in material transportation.

[0040] like Figure 2As shown, in another embodiment, the outer side of the kiln body 11 is connected to a fixing ring 23, and a support base 21 is provided at the bottom of the kiln body 11. Two sets of rollers 22 are rotatably mounted on the support base 21. The rollers 22 are in contact with the fixing ring 23. At least two sets of fixing rings 23 are connected to the kiln body 11.

[0041] When the kiln body 11 rotates, the fixed ring 23 rotates along with the kiln body 11 , and the fixed ring 23 drives the roller 22 to rotate, and the roller 22 can play a supporting role.

[0042] In another embodiment, a support frame for supporting the gear 16 for stable rotation is provided on one side of the kiln body 11; the support frame can support the gear 16 for stable rotation.

[0043] The working principle of the present utility model is as follows: the material to be roasted is input from the hopper 25, the driving device 17 drives the gear 16 to rotate, the gear 16 rotates, and the first pulley 28 is driven to rotate through the transmission rod 29, and the second pulley 26 is driven to rotate through the transmission of the belt 27, thereby driving the center rod 31 to rotate. When the center rod 31 rotates, it will drive the auger blade 32 to rotate for feeding. The gear 16 drives the gear ring 13 to rotate, and the kiln body 11 rotates to roast the material, and then it is discharged from the discharging mechanism. The material in the kiln body 11 is transported to the discharge box 18, the roasting gas is discharged from the exhaust pipe 19, and the roasted material is discharged from the discharge pipe 20.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A rare earth acid slag roasting treatment device, comprising a kiln body (11) and a heating section (12); Its characteristics are: One end of the kiln body (11) is rotatably connected to a docking plate (14), a feed pipe (15) is connected to the docking plate (14), and a discharge mechanism is provided at one end of the kiln body (11) away from the docking plate (14); A gear ring (13) is sleeved on the outer side of the kiln body (11) near one end of the docking plate (14), and the gear ring (13) is connected to the kiln body (11) through a plurality of bolts. A gear (16) meshing with the gear ring (13) is provided on one side of the kiln body (11), and a driving device (17) for driving the gear (16) to rotate is provided on one side of the kiln body (11); The top of the feed pipe (15) is connected to the hopper (25), an auger feeding mechanism is provided in the feed pipe (15), and the bottom of the feed pipe (15) is connected to the mounting seat (30), and a linkage mechanism for driving the auger feeding mechanism is installed on the mounting seat (30).

2. The rare earth acid slag roasting treatment device according to claim 1, characterized in that: The discharging mechanism comprises a discharging box (18), one side of which is provided with a connection port for rotationally cooperating with the kiln body (11), the top of the discharging box (18) is connected to an exhaust pipe (19), and the bottom of the discharging box (18) is connected to a discharge pipe (20).

3. The rare earth acid slag roasting treatment device according to claim 1, characterized in that: The auger feeding mechanism comprises a center rod (31) rotatably mounted in a feed pipe (15), an auger blade (32) being mounted on the center rod (31), and an inner cavity of the feed pipe (15) is communicated with an inner cavity of a kiln body (11).

4. The rare earth acid slag roasting treatment device according to claim 3, characterized in that: The linkage mechanism includes a second pulley (26) and a first pulley (28), one end of the center rod (31) extends out of the feed pipe (15) and is connected to the second pulley (26), the axial end of the gear (16) is connected to the transmission rod (29), the end of the transmission rod (29) away from the gear (16) is connected to the first pulley (28), the second pulley (26) is connected to the first pulley (28) through a belt (27), and the transmission rod (29) is rotatably mounted on the mounting seat (30).

5. The rare earth acid slag roasting treatment device according to claim 1, characterized in that: The inner wall of the kiln body (11) is connected to a spiral paddle (24).

6. The rare earth acid slag roasting treatment device according to claim 1, characterized in that: The outer side of the kiln body (11) is connected to a fixing ring (23); a support seat (21) is provided at the bottom of the kiln body (11); two groups of rollers (22) are rotatably mounted on the support seat (21); the rollers (22) are in contact with the fixing ring (23); and at least two groups of fixing rings (23) are connected to the kiln body (11).

7. The rare earth acid slag roasting treatment device according to claim 1, characterized in that: A support frame for supporting the gear (16) to rotate stably is provided on one side of the kiln body (11).

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