Fluorination furnace for rare earth metal treatment

Abstract

The utility model relates to a fluorination furnace for rare earth metal treatment, including the chassis, the chassis top one end is hinged to have the dump frame, the hinged lifting cylinder has on the chassis, and the telescopic rod of lifting cylinder is hinged with dump frame bottom other end, and the top of dump frame is equipped with two supports, and the horizontal rotary fluorination furnace is rotatably installed through the bearing seat between two supports, and one end of horizontal rotary fluorination furnace is the feeding air inlet and the other end is the discharge port, and the feeding end cover is installed in the feeding air inlet end face, and the air pipe is passed and arranged on the feeding end cover, and the closed cylinder is installed on the feeding end cover outside, and the piston rod of closed cylinder extends into the feeding air inlet and is connected with the closing plate, and the discharge end cover is installed in the discharge port end face, and horizontal rotary fluorination furnace is connected with the drive mechanism. The utility model can form the shelter to the air pipe through the closed cylinder and drive closing plate after stopping the gas, avoid the impurity generated in the reaction process to enter the inside of air pipe, form the adhesion, influence the life of air pipe and the subsequent air intake process.

Description

Technical Field

[0001] This utility model relates to the technical field of rotary furnaces for fluorination reactions, and more particularly to a fluorination furnace for rare earth metal processing. Background Technology

[0002] The common dry process for preparing terbium fluoride involves the reaction of anhydrous hydrogen fluoride with terbium oxide. Rotary fluorination furnaces are commonly used equipment for the dry preparation of terbium fluoride. For example, Chinese utility model patent CN216592718U discloses a tubular rotary furnace for the crude preparation of terbium fluoride, which can complete the preparation of terbium fluoride. However, during the reaction process, after the gas is stopped, the solid dust that participated in the reaction inside the furnace may enter the inlet pipe and deposit, causing the inlet pipe's diameter to decrease and resistance to increase. Utility Model Content

[0003] The present invention aims to address the shortcomings of the prior art by providing a fluorination furnace for rare earth metal processing.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A fluorination furnace for rare earth metal processing includes a base frame, a tilting frame hinged to one end of the top of the base frame, a lifting cylinder hinged to the base frame, and a telescopic rod of the lifting cylinder hinged to the other end of the bottom of the tilting frame. Two supports are provided on the top of the tilting frame, and a horizontal rotary fluorination furnace is rotatably mounted between the two supports via bearing seats. One end of the horizontal rotary fluorination furnace is a feed inlet and the other end is a discharge outlet. A feed end cover is installed on the end face of the feed inlet, and an inlet pipe passes through the feed end cover. A sealing cylinder is installed on the outside of the feed end cover, and the piston rod of the sealing cylinder extends into the feed inlet and is connected to a sealing plate. A discharge end cover is installed on the end face of the discharge outlet. The horizontal rotary fluorination furnace is connected to a drive mechanism.

[0006] Several dispersion plates are arranged around the inner wall of the horizontal rotary fluorination furnace.

[0007] The horizontal rotary fluorination furnace is equipped with a heat insulation cover. The space between the inside of the heat insulation cover and the outer wall of the horizontal rotary fluorination furnace is filled with heating resistors, which are connected to an external power source.

[0008] The heat insulation cover includes two semi-circular covers, with connecting lugs on both sides of the semi-circular covers. The corresponding connecting lugs of the two semi-circular covers are fixedly connected by bolts.

[0009] One of the semi-circular covers has sealing protrusions on the connecting end faces of the connecting ear plates on both sides, and the other semi-circular cover has sealing grooves on the connecting end faces of the connecting ear plates on both sides. The sealing protrusions are installed in the corresponding sealing grooves.

[0010] The drive mechanism includes a drive motor fixed on the tilting frame. Both the drive motor and the outer wall of the horizontal rotary fluorination furnace are equipped with sprockets, and chains are meshed between the sprockets.

[0011] The beneficial effects of this utility model are: after the gas is stopped, the sealing cylinder can drive the sealing plate to form a shield for the air intake pipe, preventing dust and other impurities generated during the reaction process from entering the interior of the air intake pipe, forming adhesion, affecting the life of the air intake pipe and the subsequent air intake process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the dispersion plate on the inner wall of the horizontal rotary fluorination furnace in this utility model.

[0014] Figure 3 This is a schematic diagram of the heat insulation cover in this utility model;

[0015] In the diagram: 1-Base frame; 2-Tilting frame; 3-Lifting cylinder; 4-Support; 5-Bearing seat; 6-Horizontal rotary fluorination furnace; 7-Feed and air inlet; 8-Discharge port; 9-Feed end cover; 10-Air inlet pipe; 11-Sealing cylinder; 12-Piston rod; 13-Sealing plate; 14-Discharge end cover; 15-Dispersion plate; 16-Heat insulation cover; 17-Heating resistor; 18-Drive motor; 19-Chain;

[0016] 1601 - Semi-circular cover; 1602 - Connecting ear plate; 1603 - Sealing protrusion;

[0017] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0019] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] like Figures 1 to 3 As shown, a fluorination furnace for rare earth metal processing includes a base frame 1, a tilting frame 2, a lifting cylinder 3, a support 4, a bearing seat 5, a horizontal rotary fluorination furnace 6, a feed inlet 7, a discharge outlet 8, a feed end cover 9, an air inlet pipe 10, a sealing cylinder 11, a piston rod 12, a sealing plate 13, a discharge end cover 14, a dispersion plate 15, a heat insulation cover 16, a heating resistor 17, a drive motor 18, and a chain 19.

[0023] A tilting frame 2 is hinged to one end of the top of the base frame 1. A lifting cylinder 3 is hinged to the base frame 1. The extension rod of the lifting cylinder 3 is hinged to the other end of the bottom of the tilting frame 2. The tilting frame 2 can be controlled to rotate around the hinge point through the lifting cylinder 3, so that the tilting frame 2 can drive the horizontal rotary fluorination furnace 6 above to tilt the material after the reaction is completed from the discharge port 8.

[0024] The top of the tilting frame 2 is equipped with two supports 4, and a horizontal rotary fluorination furnace 6 is rotatably installed between the two supports 4 via a bearing seat 5.

[0025] The horizontal rotary fluorination furnace 6 is connected to a drive mechanism. The form of the drive mechanism is not limited, as long as it can achieve the rotation function. Conventional existing technologies can be used, such as:

[0026] The drive mechanism includes a drive motor 18 fixed on the tilting frame 2. Both the drive motor 18 and the outer wall of the horizontal rotary fluorination furnace 6 are equipped with sprockets, and chains 19 are meshed between the sprockets.

[0027] The inner wall of the horizontal rotary fluorination furnace 6 is provided with several dispersion plates 15, which can better disperse the materials inside the furnace during the rotation of the horizontal rotary fluorination furnace 6 and better complete the reaction.

[0028] The horizontal rotary fluorination furnace 6 has a feed inlet 7 at one end and a discharge outlet 8 at the other end. A feed end cover 9 is installed on the end face of the feed inlet 7, and an inlet pipe 10 passes through the feed end cover 9. A sealing cylinder 11 is installed on the outside of the feed end cover 9. The piston rod 12 of the sealing cylinder 11 extends into the feed inlet 7 and is connected to a sealing plate 13. A discharge end cover 14 is installed on the end face of the discharge outlet 8.

[0029] A heat insulation cover 16 is installed on the outside of the horizontal rotary fluorination furnace 6. A heating resistor 17 is filled between the inside of the heat insulation cover 16 and the outer wall of the horizontal rotary fluorination furnace 6. The heating resistor 17 is connected to an external power source.

[0030] The heating resistor 17 can regulate the heating temperature through conventional control programs and controllers. The heating resistor 17 is also equipped with a matching temperature measuring thermocouple assembly, etc. These are conventional technologies, which are not described in detail in this application, but do not affect the normal implementation of the solution in this application.

[0031] The heat insulation cover 16 includes two semi-circular covers 1601. Connecting ear plates 1602 are provided on both sides of the semi-circular covers 1601. The connecting ear plates 1602 corresponding to the two semi-circular covers 1601 are fixedly connected by bolts.

[0032] One of the semi-circular covers 1601 has a sealing protrusion 1603 on the connecting end face of the connecting ear plate 1602 on both sides, and the other semi-circular cover 1601 has a sealing groove on the connecting end face of the connecting ear plate 1602 on both sides, and the sealing protrusion 1603 is installed in the corresponding sealing groove.

[0033] In operation, the horizontal rotary fluorination furnace 6 is first heated to 500 degrees Celsius. After the temperature stabilizes, a fixed amount of terbium oxide is added into the horizontal rotary fluorination furnace 6 through the feed inlet 7. Then, the horizontal rotary fluorination furnace 6 is started to rotate. Anhydrous hydrogen fluoride gas is uniformly introduced through the gas inlet pipe 10. The gas flow rate is calculated according to the process (overall excess of 40% is sufficient). After 10 hours, the gas is stopped without cooling. After the gas is stopped, the sealing cylinder 11 can drive the sealing plate 13 to form a shield around the gas inlet pipe 10, preventing impurities such as ash and slag generated during the reaction from entering the interior of the gas inlet pipe 10, forming adhesions, affecting the lifespan of the gas inlet pipe 10 and the subsequent gas intake process. Finally, the material is discharged at high temperature.

[0034] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A fluorination furnace for rare earth metal processing, characterized in that, The system includes a base frame (1), a tilting frame (2) hinged to one end of the top of the base frame (1), a lifting cylinder (3) hinged to the base frame (1), the telescopic rod of the lifting cylinder (3) hinged to the other end of the bottom of the tilting frame (2), two supports (4) on the top of the tilting frame (2), and a horizontal rotary fluorination furnace (6) rotatably mounted between the two supports (4) via a bearing seat (5). One end of the horizontal rotary fluorination furnace (6) is a feed inlet (7) and the other end is a... The end is the discharge port (8), the end face of the feed inlet and air inlet (7) is equipped with a feed end cover (9), the feed end cover (9) is provided with an air inlet pipe (10), the outside of the feed end cover (9) is equipped with a sealing cylinder (11), the piston rod (12) of the sealing cylinder (11) extends into the feed inlet and air inlet (7) and is connected to a sealing plate (13), the end face of the discharge port (8) is equipped with a discharge end cover (14), and the horizontal rotary fluorination furnace (6) is connected to a drive mechanism.

2. The fluorination furnace for rare earth metal processing according to claim 1, characterized in that, The inner wall of the horizontal rotary fluorination furnace (6) is provided with several dispersion plates (15).

3. The fluorination furnace for rare earth metal processing according to claim 1, characterized in that, A heat insulation cover (16) is installed on the outside of the horizontal rotary fluorination furnace (6). A heating resistor (17) is filled between the inside of the heat insulation cover (16) and the outer wall of the horizontal rotary fluorination furnace (6). The heating resistor (17) is connected to an external power source.

4. A fluorination furnace for rare earth metal processing according to claim 3, characterized in that, The heat insulation cover (16) includes two semi-circular covers (1601), and connecting ear plates (1602) are provided on both sides of the semi-circular covers (1601). The connecting ear plates (1602) corresponding to the two semi-circular covers (1601) are fixedly connected by bolts.

5. A fluorination furnace for rare earth metal processing according to claim 4, characterized in that, One of the semi-circular covers (1601) has a sealing protrusion (1603) on the connecting end face of the connecting ear plate (1602) on both sides, and the other semi-circular cover (1601) has a sealing groove on the connecting end face of the connecting ear plate (1602) on both sides, and the sealing protrusion (1603) is installed in the corresponding sealing groove.

6. A fluorination furnace for rare earth metal processing according to claim 5, characterized in that, The drive mechanism includes a drive motor (18) fixed on the tilting frame (2). Both the drive motor (18) and the outer wall of the horizontal rotary fluorination furnace (6) are equipped with sprockets and chains (19) are meshed between the sprockets.

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