Rare earth oxalic acid precipitate firing device

Abstract

The utility model belongs to the technical field of rare earth oxalic acid precipitate treatment, and particularly relates to a rare earth oxalic acid precipitate burning device which comprises a base, a burner is installed in the base, a burning barrel is arranged above the burner, and a sealing plate is connected to the top of the burning barrel in a clamped mode. Through cooperation of an air blower and a purification barrel, when rare earth oxalic acid is burnt, gas is conveyed into the purification barrel, reaction liquid is arranged in the purification barrel, and when the gas is output from the bottom of a gas conveying pipe and passes through the reaction liquid, a second motor is started, and an output shaft of the second motor drives a first stirring paddle to rotate; the first stirring paddle mixes the gas and the reaction liquid, the gas and the reaction liquid rapidly react, and finally the purified gas is discharged from the gas outlet pipe; and through the arrangement of a liquid inlet pipe and a liquid discharge pipe, reaction liquid in the purification barrel can be conveniently discharged in time and replaced with new reaction liquid, rapid reaction with gas is facilitated, and the functions of absorbing harmful gas and protecting the environment are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rare earth oxalic acid precipitate treatment, in particular to a rare earth oxalic acid precipitate burning device. Background Art

[0002] Rare earth oxalate is generally an intermediate product. Since it is a precipitate and easily decomposes when heated, it is often only separated from other elements and then heated to obtain rare earth oxide. Drying and calcination can remove moisture and volatile substances in the precipitate, and can also convert the initially generated precipitate into a weighing form with a constant composition at high temperature.

[0003] A Chinese patent with announcement number CN206385234U discloses a rare earth oxalic acid precipitate burning device, including a first slide rail, a first rack, a fan gear, a motor, a bracket, a first slider, a support rod, a first spring, a horizontal rack, a ring gear, a bearing seat, etc.; a burning box is provided at the bottom of the bracket, a vent is provided in the middle and lower part of the front side of the burning box, a burning pot is provided above the burning box, a motor is provided at the top of the bracket, a fan gear is connected to the rear of the motor, a first slide rail and a support rod are provided on the right side wall of the bracket, and the support rod is provided below the first slide rail. The utility model achieves the effects of simple operation, sufficient burning of rare earth oxalic acid precipitates, high burning efficiency, energy saving, high safety performance and high temperature resistance.

[0004] In the above technology, rare earth oxalic acid will produce some harmful gases containing sulfur and carbon after burning. The burning pot is open and these harmful gases are directly discharged, which not only poses a safety hazard to the workers, but also causes serious air pollution, which is not conducive to the continued progress of the reaction.

[0005] Therefore, in order to solve the above problems, a rare earth oxalic acid precipitate burning device is proposed. Utility Model Content

[0006] In order to make up for the shortcomings of the existing technology and solve the problem of direct emission of harmful sulfur and carbon-containing gases that harm health and pollute the environment, a rare earth oxalic acid precipitate burning device is proposed.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a rare earth oxalic acid precipitate burning device described in the utility model comprises a base, a burner is installed in the base, a burning cylinder is provided above the burner, and a sealing plate is clamped on the top of the burning cylinder; a side plate is fixedly connected to the side wall of the burning cylinder, and the top of the side plate is fixedly connected to the purification cylinder, and the purification cylinder and the burning cylinder are connected and fixed by an air supply pipe; a blower is installed on the air supply pipe; the air supply pipe extends to the bottom end of the purification cylinder; the top of the purification cylinder is fixedly connected to a second motor, the output shaft of the second motor is rotatably connected to the purification cylinder through a bearing, and the output shaft of the second motor is fixedly connected to a first stirring paddle; the top of the purification cylinder is connected and fixedly connected to an air outlet pipe; the top of the purification cylinder is connected and fixedly connected to a liquid inlet pipe, and the bottom of the purification cylinder is connected and fixedly connected to a liquid discharge pipe, and valves are installed on both the liquid inlet pipe and the discharge pipe.

[0008] Preferably, a feed hopper is connected and fixedly connected to the side wall of the burning cylinder away from the gas pipe, and a control valve is installed on the feed hopper.

[0009] Preferably, a first motor is fixedly connected to the top of the sealing plate, and the output shaft of the first motor is rotatably connected to the sealing plate through a bearing, and the output shaft of the first motor is fixedly connected to a rotating rod; the outer side wall of the rotating rod is rotatably connected to two protective boxes through a bearing; the protective boxes are rotatably connected to two second stirring paddles through a rotating shaft; one end of the second stirring paddle arranged in the protective box is fixedly connected to a second bevel gear; the outer side wall of the rotating rod is fixedly connected to two first bevel gears; the first bevel gears are respectively arranged between the two second bevel gears and mesh with the two adjacent second bevel gears.

[0010] Preferably, two electric push rods are fixed in the base, and the output shafts of the electric push rods are fixed with connecting blocks; the inner side walls of the connecting blocks are rotatably connected to the outer wall of the burning cylinder through a rotating shaft; a driving motor is fixed to one of the connecting blocks, and the output shaft of the driving motor extends and is fixed to one end of the rotating shaft.

[0011] Preferably, the bottom end of the burning cylinder is connected and fixedly connected to a discharge pipe, and a solenoid valve is installed on the discharge pipe; the bottom of the rotating rod is fixedly connected to a scraper, and the scraper is in contact with the inner wall of the burning cylinder.

[0012] Preferably, four sliding columns are fixed to the top of the base, and each of the connecting blocks is slidably connected to two adjacent sliding columns.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides a rare earth oxalic acid precipitate burning device. Through the cooperation of a blower and a purification tube, when the rare earth oxalic acid is burned, gas is transported to the purification tube. A reaction liquid is provided in the purification tube. When the gas is output from the bottom of the gas transmission pipe and passes through the reaction liquid, a second motor is turned on and the output shaft of the second motor drives a first stirring paddle to rotate. The first stirring paddle mixes the gas and the reaction liquid. The gas and the reaction liquid react quickly, and finally the purified gas is discharged from the gas outlet pipe. Through the arrangement of the liquid inlet pipe and the liquid discharge pipe, the reaction liquid in the purification tube is discharged in time and replaced with a new reaction liquid, which is convenient for the reaction liquid to react quickly with the gas, thereby realizing the function of absorbing harmful gases and protecting the environment.

[0015] The utility model provides a rare earth oxalic acid precipitate burning device. By arranging a first bevel gear and a second bevel gear, the rare earth oxalic acid at the bottom of the burning cylinder is close to the burner and has high heat, while the heat at the top rises slowly, resulting in different temperatures at the top and bottom, which may cause the rare earth oxalic acid at different positions to burn differently. Therefore, during burning, by turning on the first motor, the output shaft of the first motor drives the rotating rod to rotate, the rotating rod drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the second stirring paddle to rotate. When the second stirring paddle rotates, it stirs the rare earth oxalic acid at the top to the bottom and stirs the rare earth oxalic acid at the bottom to the top. After a period of time, the rare earth oxalic acid in the burning cylinder is evenly mixed and burned, thereby improving the burning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the second stirring paddle and scraper in the present utility model;

[0020] Figure 4 It is a three-dimensional diagram of the first bevel gear and the second bevel gear in the present utility model;

[0021] Figure 5 It is a three-dimensional diagram of the burning cylinder in the utility model;

[0022] Legend:

[0023] 1. Base; 2. Burner; 3. Burning cylinder; 4. Sealing plate; 5. First motor; 6. Feed hopper; 7. Control valve; 8. Air pipe; 9. Blower; 10. Side panel; 11. Purification cylinder; 12. Second motor; 13. Liquid inlet pipe; 14. Air outlet pipe; 15. First stirring paddle; 16. Rotating rod; 17. Protective box; 18. Second stirring paddle; 19. Scraper; 20. First bevel gear; 21. Second bevel gear; 22. Connecting block; 23. Electric push rod; 24. Sliding column; 25. Drive motor; 26. Discharge pipe; 27. Discharge pipe. DETAILED DESCRIPTION

[0024] 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.

[0025] Specific examples are given below.

[0026] See also Figure 1 - Figure 5 The utility model provides a rare earth oxalic acid precipitate burning device, comprising a base 1, a burner 2 is installed in the base 1, a burning tube 3 is provided above the burner 2, a sealing plate 4 is clamped on the top of the burning tube 3; a side plate 10 is fixedly connected to the side wall of the burning tube 3, a purification tube 11 is fixedly connected to the top of the side plate 10, the purification tube 11 and the burning tube 3 are connected and fixed through an air pipe 8; a blower 9 is installed on the air pipe 8; the air pipe 8 extends to the purification tube 11. The bottom end of the cylinder 11; the top of the purification cylinder 11 is fixedly connected to a second motor 12, the output shaft of the second motor 12 is rotatably connected to the purification cylinder 11 through a bearing, and the output shaft of the second motor 12 is fixedly connected to a first stirring paddle 15; the top of the purification cylinder 11 is connected and fixedly connected to an air outlet pipe 14; the top of the purification cylinder 11 is connected and fixedly connected to a liquid inlet pipe 13, and the bottom of the purification cylinder 11 is connected and fixedly connected to a liquid discharge pipe 27, and valves are installed on both the liquid inlet pipe 13 and the liquid discharge pipe 27.

[0027] During operation, in order to solve the problem of sulfur-containing and carbon-containing harmful gases being directly discharged to endanger health and pollute the environment, an air pipe 8 and a blower 9 are set up. When rare earth oxalic acid is burned, the gas is transported to the purification cylinder 11. A reaction liquid is provided in the purification cylinder 11. When the gas is output from the bottom of the air pipe 8 and passes through the reaction liquid, the second motor 12 is turned on and the output shaft of the second motor 12 drives the first stirring paddle 15 to rotate. The first stirring paddle 15 mixes the gas and the reaction liquid, and the gas and the reaction liquid react rapidly. Finally, the purified gas is discharged from the air outlet pipe 14; through the setting of the liquid inlet pipe 13 and the liquid discharge pipe 27, it is convenient to discharge the reaction liquid in the purification cylinder 11 in time and replace it with a new reaction liquid, so that it is convenient to quickly react with the gas to achieve the function of absorbing harmful gases and protecting the environment.

[0028] Further, such as Figure 2 As shown, the side wall of the burning cylinder 3 away from the gas pipe 8 is connected and fixedly connected to a feed hopper 6, and a control valve 7 is installed on the feed hopper 6.

[0029] During operation, rare earth oxalic acid is fed through the feed hopper 6. After the feeding is completed, the control valve 7 is closed, and then the burning operation is carried out to prevent the harmful gas from overflowing.

[0030] Further, such as Figures 2 to 4 As shown, a first motor 5 is fixed to the top of the sealing plate 4, and the output shaft of the first motor 5 is rotatably connected to the sealing plate 4 through a bearing, and the output shaft of the first motor 5 is fixed to a rotating rod 16; the outer wall of the rotating rod 16 is rotatably connected to two protective boxes 17 through a bearing; the protective boxes 17 are rotatably connected to two second stirring paddles 18 through a rotating shaft; one end of the second stirring paddle 18 provided in the protective box 17 is fixed to a second bevel gear 21; the outer wall of the rotating rod 16 is fixed to two first bevel gears 20; the first bevel gears 20 are respectively provided between the two second bevel gears 21, and mesh with the two adjacent second bevel gears 21.

[0031] During operation, the rare earth oxalic acid at the bottom of the burning tube 3 is close to the burner 2 and has high heat, while the heat at the top rises slowly, resulting in different temperatures at the top and bottom, which may cause the rare earth oxalic acid at different positions to burn differently. Therefore, during burning, the first motor 5 is turned on, and the output shaft of the first motor 5 drives the rotating rod 16 to rotate, and the rotating rod 16 drives the first bevel gear 20 to rotate, and the first bevel gear 20 drives the second bevel gear 21 to rotate, and the second stirring paddle 18 is driven to rotate by the second bevel gear 21. When the second stirring paddle 18 rotates, it stirs the rare earth oxalic acid above to the bottom and stirs the rare earth oxalic acid below to the top. After a period of time, the rare earth oxalic acid in the burning tube 3 is evenly mixed and burned, thereby improving the burning efficiency.

[0032] Further, such as Figure 2 and Figure 5 As shown, two electric push rods 23 are fixedly connected to the base 1, and the output shafts of the electric push rods 23 are fixedly connected to the connecting blocks 22; the inner side walls of the connecting blocks 22 are rotatably connected to the outer wall of the burning tube 3 through the rotating shaft; a driving motor 25 is fixedly connected to one of the connecting blocks 22, and the output shaft of the driving motor 25 extends and is fixedly connected to one end of the rotating shaft.

[0033] During operation, when the material needs to be discharged after the burning is completed, the electric push rod 23 is turned on, and the connecting block 22 is pushed upward by the electric push rod 23, and the burning tube 3 is driven to move upward through the connecting block 22, so as to move away from the burner 2, which is convenient for rotating and discharging; when discharging, the driving motor 25 is turned on, and the output shaft of the driving motor 25 drives the rotating shaft to rotate, thereby driving the burning tube 3 to rotate, which is convenient for discharging.

[0034] Further, such as Figure 5 As shown, the bottom end of the burning cylinder 3 is connected and fixedly connected with a discharge pipe 26 , and a solenoid valve is installed on the discharge pipe 26 ; the bottom of the rotating rod 16 is fixedly connected with a scraper 19 , and the scraper 19 contacts the inner wall of the burning cylinder 3 .

[0035] During operation, when discharging, the first motor 5 drives the rotating rod 16 to rotate, and the rotating rod 16 drives the scraper 19 to rotate; by opening the solenoid valve, the scraper 19 discharges the rare earth oxide from the discharge pipe 26 when rotating, thereby realizing the discharging function.

[0036] Further, such as Figure 1 As shown, four sliding posts 24 are fixed to the top of the base 1 , and each of the connecting blocks 22 is slidably connected to two adjacent sliding posts 24 .

[0037] During operation, the connecting block 22 slides on the sliding post 24 during movement, and the sliding post 24 limits the connecting block 22 in the vertical direction.

[0038] Working principle: In order to solve the problem of harmful sulfur-containing and carbon-containing gases being directly discharged to harm health and pollute the environment, an air pipe 8 and a blower 9 are set. When rare earth oxalic acid is burned, the gas is transported to the purification cylinder 11. A reaction liquid is provided in the purification cylinder 11. When the gas is output from the bottom of the air pipe 8 and passes through the reaction liquid, the second motor 12 is turned on and the output shaft of the second motor 12 drives the first stirring paddle 15 to rotate. The first stirring paddle 15 mixes the gas and the reaction liquid, and the gas and the reaction liquid react quickly. Finally, the purified gas is discharged from the air outlet pipe 14; the setting of the liquid inlet pipe 13 and the liquid discharge pipe 27 facilitates the timely discharge of the reaction liquid in the purification cylinder 11 and the replacement of the new reaction liquid, so that the reaction liquid reacts quickly with the gas to absorb the harmful gas. The function of protecting the environment; the rare earth oxalic acid at the bottom of the burning tube 3 is close to the burner 2 and the heat is high, and the heat at the top rises slowly, resulting in different temperatures at the top and bottom, which may cause the rare earth oxalic acid at different positions to burn differently. Therefore, during burning, the first motor 5 is turned on, and the output shaft of the first motor 5 drives the rotating rod 16 to rotate, and the first bevel gear 20 is driven to rotate by the rotating rod 16, and the second bevel gear 21 is driven to rotate by the first bevel gear 20, and the second stirring paddle 18 is driven to rotate by the second bevel gear 21. When the second stirring paddle 18 rotates, it stirs the rare earth oxalic acid above to the bottom and stirs the rare earth oxalic acid below to the top. After a period of time, the rare earth oxalic acid in the burning tube 3 is evenly mixed and burned evenly, thereby improving the burning efficiency.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A rare earth oxalic acid precipitate burning device, comprising a base (1), a burner (2) installed in the base (1), a burning tube (3) provided above the burner (2), a sealing plate (4) clamped on the top of the burning tube (3); a side plate (10) fixedly connected to the side wall of the burning tube (3), a purification tube (11) fixedly connected to the top of the side plate (10), characterized in that: The purification cylinder (11) and the burning cylinder (3) are connected and fixedly connected via an air supply pipe (8); a blower (9) is installed on the air supply pipe (8); the air supply pipe (8) extends to the bottom end of the purification cylinder (11); a second motor (12) is fixedly connected to the top of the purification cylinder (11); the output shaft of the second motor (12) is rotatably connected to the purification cylinder (11) through a bearing, and the output shaft of the second motor (12) is fixedly connected to a first stirring paddle (15); the top of the purification cylinder (11) is connected and fixedly connected to an air outlet pipe (14); the top of the purification cylinder (11) is connected and fixedly connected to a liquid inlet pipe (13), and the bottom of the purification cylinder (11) is connected and fixedly connected to a liquid discharge pipe (27), and valves are installed on both the liquid inlet pipe (13) and the liquid discharge pipe (27).

2. The rare earth oxalic acid precipitate burning device according to claim 1, characterized in that: A feed hopper (6) is connected and fixedly connected to the side wall of the burning cylinder (3) away from the gas transmission pipe (8), and a control valve (7) is installed on the feed hopper (6).

3. The rare earth oxalic acid precipitate burning device according to claim 2, characterized in that: A first motor (5) is fixedly connected to the top of the sealing plate (4), and an output shaft of the first motor (5) is rotatably connected to the sealing plate (4) via a bearing, and the output shaft of the first motor (5) is fixedly connected to a rotating rod (16); an outer wall of the rotating rod (16) is rotatably connected to two protective boxes (17) via a bearing; two second stirring paddles (18) are rotatably connected to the protective boxes (17) via a rotating shaft; one end of each of the second stirring paddles (18) disposed in the protective box (17) is fixedly connected to a second bevel gear (21); an outer wall of the rotating rod (16) is fixedly connected to two first bevel gears (20); the first bevel gears (20) are respectively disposed between the two second bevel gears (21) and mesh with the two adjacent second bevel gears (21).

4. The rare earth oxalic acid precipitate burning device according to claim 3, characterized in that: Two electric push rods (23) are fixedly connected to the base (1), and the output shafts of the electric push rods (23) are fixedly connected to the connecting blocks (22); the inner side walls of the connecting blocks (22) are rotatably connected to the outer wall of the burning cylinder (3) through the rotating shaft; a driving motor (25) is fixedly connected to one of the connecting blocks (22), and the output shaft of the driving motor (25) extends and is fixedly connected to one end of the rotating shaft.

5. The rare earth oxalic acid precipitate burning device according to claim 4, characterized in that: The bottom end of the burning cylinder (3) is connected to and fixedly connected with a discharge pipe (26), and a solenoid valve is installed on the discharge pipe (26); the bottom of the rotating rod (16) is fixedly connected with a scraper (19), and the scraper (19) contacts the inner wall of the burning cylinder (3).

6. The rare earth oxalic acid precipitate burning device according to claim 5, characterized in that: Four sliding columns (24) are fixedly connected to the top of the base (1), and each of the connecting blocks (22) is slidably connected to two adjacent sliding columns (24).

Images