Waste gas treatment device for rare earth oxide sintering

Abstract

The utility model discloses a waste gas treatment device for rare earth oxide sintering, which relates to the technical field of waste gas treatment devices and comprises a bottom plate, a first waste gas treatment box is mounted on one side of the top wall of the bottom plate, and a plurality of groups of net frames are uniformly fixed on the bottom wall of the first waste gas treatment box. A collecting frame is fixed to the top wall of the first waste gas treatment box body, multiple sets of first discharging pipes extending to inner cavities of the net frames are evenly fixed to the bottom wall of the collecting frame, electromagnetic valves are installed outside the first discharging pipes, and a plugging assembly making contact with the bottom ends of the multiple sets of net frames is fixed to the top wall of the bottom plate. Activated carbon in the inner cavity of the screen frame is rapidly discharged by starting the plugging assembly, then the opening in the bottom of the screen frame is plugged again, the electromagnetic valves on the first discharging pipes are opened again, activated carbon in the inner cavity of the collecting frame is injected into the inner cavity of the screen frame again through the multiple sets of first discharging pipes, and the activated carbon in the inner cavity of the screen frame can be conveniently and rapidly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment devices, in particular to a waste gas treatment device for sintering rare earth oxides. Background Art

[0002] The rare earth oxide and ceramic raw materials are mixed evenly in a certain proportion, and necessary grinding and ball milling treatments are carried out to ensure the fineness and uniformity of the raw materials. Then, the mixed raw materials are made into green bodies of required shapes by methods such as pressing and injection molding. Next, the green bodies are put into a high-temperature furnace for sintering. The sintering temperature and time are determined according to specific materials and requirements. During the sintering process, the rare earth oxide will play the role of a flux and additive, promoting the densification and performance improvement of the ceramic material.

[0003] Certain waste gas will be generated during the sintering process. Before spraying the waste gas, the solid particles in the waste gas need to be filtered out first. Most of the existing devices use granular activated carbon to filter out the solid particles in the waste gas. However, after the granular activated carbon is used for a period of time, the filtering effect will be greatly reduced. Therefore, the utility model provides a waste gas treatment device for sintering rare earth oxides different from the prior art to solve the above technical problems. Summary of the Utility Model

[0004] In order to improve the problem that the filtering effect of the granular activated carbon mentioned above will be greatly reduced after being used for a period of time, the utility model provides a waste gas treatment device for sintering rare earth oxides.

[0005] The utility model provides a waste gas treatment device for sintering rare earth oxides, adopting the following technical scheme:

[0006] A waste gas treatment device for sintering rare earth oxides includes a bottom plate. One side of the top wall of the bottom plate is provided with a first waste gas treatment box body. A plurality of groups of wire frames are evenly fixed at the bottom wall position of the first waste gas treatment box body. A collection box is fixed at the top wall position of the first waste gas treatment box body. A plurality of groups of first discharge pipes extending to the inner cavity of the wire frame are evenly fixed at the bottom wall of the collection box. An electromagnetic valve is installed outside the first discharge pipe. A plugging component in contact with the bottom end positions of the plurality of groups of wire frames is fixed on the top wall of the bottom plate. An air inlet pipe is fixed at the bottom end position of one side outer wall of the first waste gas treatment box body.

[0007] By adopting the above technical solution, the sintering waste gas of rare earth oxides enters the inner cavity of the first waste gas treatment box through the intake pipe. Under the action of the mesh structure of multiple sets of wire frames, the solid particles in the sintering waste gas can be fully contacted with the activated carbon and filtered out. The plugging assembly is started to quickly discharge the activated carbon in the inner cavity of the wire frame and then plug the opening at the bottom of the wire frame. The solenoid valve on the first discharge pipe is opened again, so that the activated carbon in the inner cavity of the collection box is injected into the inner cavity of the wire frame again through multiple sets of first discharge pipes, which is convenient for quickly replacing the activated carbon in the inner cavity of the wire frame.

[0008] Optionally, the plugging assembly includes cylinders. There are multiple sets of cylinders, and the multiple sets of cylinders are fixed at the top wall position of the bottom plate. The end positions of the output shafts of the multiple sets of cylinders are fixed with a plugging cross plate.

[0009] By adopting the above technical solution, multiple sets of cylinders are synchronously started to drive the plugging cross plate to move up and down, which is convenient for discharging the activated carbon in the inner cavity of the wire frame or plugging the opening at the bottom of the wire frame.

[0010] Optionally, a driving motor is fixed at the middle position of the top wall of the collection box. A rotating shaft extending into the inner cavity of the collection box is installed at the output end of the driving motor, and multiple sets of stirring blades are fixed on the outer wall of the rotating shaft.

[0011] By adopting the above technical solution, the driving motor is started to drive the rotating shaft to rotate, so that multiple sets of stirring blades can be driven to rotate synchronously. Under the action of the multiple sets of stirring blades, the activated carbon can be smoothly discharged into the inner cavity of the wire frame through the first discharge pipe.

[0012] Optionally, a second waste gas treatment box is fixed at the other side position of the top wall of the bottom plate. A third discharge pipe extending into the inner cavity of the second waste gas treatment box is fixed at the upper end position of one side outer wall of the first waste gas treatment box. A fourth discharge pipe is fixed at the upper end position of the other side outer wall of the second waste gas treatment box, and a second discharge pipe is fixed at the bottom end position of the other side outer wall of the second waste gas treatment box.

[0013] Optionally, a water tank is fixed at the top wall position of the second waste gas treatment box. A submersible pump is fixed at one side position of the bottom wall of the inner cavity of the water tank. A second spray pipe extending into the inner cavity of the second waste gas treatment box is installed at the output end of the submersible pump. A first spray pipe is fixed at the bottom end position of the second spray pipe and is located at the top wall position of the inner cavity of the second waste gas treatment box. Multiple sets of nozzles are evenly fixed at the bottom wall position of the first spray pipe.

[0014] By adopting the above technical solution, the submersible pump is started to draw the clear water in the inner cavity of the water tank and spray it out evenly atomized through the second spray pipe, the first spray pipe and multiple sets of nozzles, so that the atomized water can be fully contacted with the sintering waste gas and the sintering waste gas is filtered again.

[0015] Optionally, a pluggable second soft plug is provided at one side of the top wall of the collection box, and a pluggable first soft plug is provided on the top wall of the water tank.

[0016] By adopting the above technical solution, the second soft plug is pulled out to pour an appropriate amount of activated carbon into the inner cavity of the collection box, the first soft plug is pulled out and an appropriate amount of clear water is injected into the inner cavity of the water tank.

[0017] Optionally, transparent windows are installed on the front side walls of both the collection box and the water tank.

[0018] By adopting the above technical solution, under the action of the transparent window, it is convenient for the staff to view the remaining amount of activated carbon and the remaining amount of clear water in the inner cavities of the collection box and the water tank in real time.

[0019] In summary, the present utility model includes at least one of the following beneficial effects:

[0020] The submersible pump is started to draw the clear water in the inner cavity of the water tank and evenly atomize and spray it out through the second spray pipe, the first spray pipe and multiple groups of nozzles, so that the atomized water can fully contact with the sintering waste gas and filter the sintering waste gas again;

[0021] Synchronously start multiple groups of cylinders to contract and drive the blocking cross plate to move downward, so that the activated carbon in the inner cavity of the mesh frame is quickly discharged. Restart the cylinder to drive the blocking cross plate to reset and block the opening at the bottom of the mesh frame. Open the solenoid valve on the first discharge pipe again, so that the activated carbon in the inner cavity of the collection box is injected into the inner cavity of the mesh frame again, which is convenient for quickly replacing the activated carbon in the inner cavity of the mesh frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front view sectional structure schematic diagram of the present utility model;

[0023] Figure 2 It is a top view sectional structure schematic diagram of the first waste gas treatment box body of the present utility model;

[0024] Figure 3 It is a front view structure schematic diagram of the present utility model.

[0025] In the figure: 1, rotating shaft; 2, stirring blade; 3, first discharge pipe; 4, mesh frame; 5, first waste gas treatment box body; 6, air inlet pipe; 7, blocking cross plate; 8, cylinder; 9, bottom plate; 10, second waste gas treatment box body; 11, second discharge pipe; 12, third discharge pipe; 13, nozzle; 14, fourth discharge pipe; 15, first spray pipe; 16, second spray pipe; 17, water tank; 18, first soft plug; 19, submersible pump; 20, collection box; 21, drive motor; 22, second soft plug; 23, transparent window. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following is combined with the attached Figures 1-3A further detailed description is given to the present utility model.

[0027] Please refer to the accompanying drawings in the specification Figure 1 and 2 For an embodiment provided by the present utility model: An exhaust gas treatment device for sintering rare earth oxides, including a bottom plate 9, on one side of the top wall of the bottom plate 9, a first exhaust gas treatment box body 5 is installed. A plurality of groups of wire frames 4 are uniformly fixed at the bottom wall position of the first exhaust gas treatment box body 5. The bottom end position of the wire frame 4 is set to be open. A collection frame 20 is fixed at the top wall position of the first exhaust gas treatment box body 5. At one side position of the top wall of the collection frame 20, a pluggable second soft plug 22 is provided. A plurality of groups of first discharge pipes 3 extending into the inner cavity of the wire frame 4 are uniformly fixed at the bottom wall of the collection frame 20. An electromagnetic valve is installed outside the first discharge pipe 3.

[0028] Please refer to the accompanying drawings in the specification Figure 1 and 2 On the top wall of the bottom plate 9, a plugging assembly in contact with the bottom end positions of the plurality of groups of wire frames 4 is fixed. The plugging assembly includes cylinders 8. There are a plurality of groups of cylinders 8, and the plurality of groups of cylinders 8 are fixed at the top wall position of the bottom plate 9. At the end positions of the output shafts of the plurality of groups of cylinders 8, a plugging cross plate 7 is fixed. The cross-sectional dimension of the plugging cross plate 7 is larger than the cross-sectional dimension occupied by all the wire frames 4 together. At the bottom end position of the outer wall on one side of the first exhaust gas treatment box body 5, an air inlet pipe 6 is fixed. A control valve is installed outside the air inlet pipe 6.

[0029] Pull out the second soft plug 22, pour an appropriate amount of activated carbon into the inner cavity of the collection frame 20, then open the first discharge pipe 3 so that the activated carbon enters the inner cavity of the wire frame 4 through the plurality of groups of first discharge pipes 3. Open the control valve on the air inlet pipe 6 so that the exhaust gas from sintering rare earth oxides enters the inner cavity of the first exhaust gas treatment box body 5 through the air inlet pipe 6. Under the action of the mesh structure of the plurality of groups of wire frames 4, the solid particles in the sintering exhaust gas can be fully contacted with the activated carbon and filtered out.

[0030] Please refer to the accompanying drawings in the specification Figure 1 On the other side position of the top wall of the bottom plate 9, a second exhaust gas treatment box body 10 is fixed. At the upper end position of the outer wall on one side of the first exhaust gas treatment box body 5, a third discharge pipe 12 extending into the inner cavity of the second exhaust gas treatment box body 10 is fixed. The longitudinal section of the third discharge pipe 12 is set to be L-shaped. At the upper end position of the outer wall on the other side of the second exhaust gas treatment box body 10, a fourth discharge pipe 14 is fixed. At the bottom end position of the outer wall on the other side of the second exhaust gas treatment box body 10, a second discharge pipe 11 is fixed. Control valves are installed outside both the fourth discharge pipe 14 and the second discharge pipe 11.

[0031] Please refer to the accompanying drawings in the specification Figure 1, a first pluggable soft plug 18 is provided on the top wall of the water tank 17, the water tank 17 is fixed at the top wall position of the second waste gas treatment box body 10, a submersible pump 19 is fixed at one side position of the bottom wall of the inner cavity of the water tank 17, the output end of the submersible pump 19 is provided with a second spray pipe 16 extending into the inner cavity of the second waste gas treatment box body 10, the bottom end position of the second spray pipe 16 is fixed with a first spray pipe 15 at the top wall position of the inner cavity of the second waste gas treatment box body 10, and a plurality of groups of nozzles 13 are uniformly fixed at the bottom wall position of the first spray pipe 15.

[0032] The sintering waste gas after removing soot enters the inner cavity of the second waste gas treatment box body 10 through the third discharge pipe 12. Pull out the first soft plug 18 and inject an appropriate amount of clean water into the inner cavity of the water tank 17. Start the submersible pump 19 to draw the clean water in the inner cavity of the water tank 17 and spray it out evenly through the second spray pipe 16, the first spray pipe 15 and the plurality of groups of nozzles 13, so that the atomized water can fully contact the sintering waste gas and filter the sintering waste gas again.

[0033] Please refer to the drawings in the specification Figure 1 , a driving motor 21 is fixed at the middle position of the top wall of the collection frame 20, the output end of the driving motor 21 is provided with a rotating shaft 1 extending into the inner cavity of the collection frame 20, and a plurality of groups of stirring blades 2 are fixed on the outer wall of the rotating shaft 1. Start the driving motor 21 to drive the rotating shaft 1 to rotate, so as to drive the plurality of groups of stirring blades 2 to rotate synchronously. Under the action of the plurality of groups of stirring blades 2, the activated carbon can be smoothly discharged into the inner cavity of the wire mesh frame 4 through the first discharge pipe 3.

[0034] Please refer to the drawings in the specification Figure 1 and 3 , transparent windows 23 are installed on the front side walls of both the collection frame 20 and the water tank 17. Under the action of the transparent windows 23, it is convenient for the staff to view the remaining amount of activated carbon and the remaining amount of clean water in the inner cavities of the collection frame 20 and the water tank 17 in real time.

[0035] Working principle: When using the waste gas treatment device for sintering rare earth oxides, first place the bottom plate 9 at an appropriate position, pull out the second soft plug 22, pour an appropriate amount of activated carbon into the inner cavity of the collection frame 20, then open the first discharge pipe 3 so that the activated carbon enters the inner cavity of the wire mesh frame 4 through the plurality of groups of first discharge pipes 3, and open the control valve on the air inlet pipe 6 so that the sintering waste gas of rare earth oxides enters the inner cavity of the first waste gas treatment box body 5. Under the action of the mesh structure of the plurality of wire mesh frames 4, the solid particles in the sintering waste gas can fully contact the activated carbon and be filtered and removed.

[0036] The sintering waste gas after removing soot enters the inner cavity of the second waste gas treatment box 10 through the third discharge pipe 12. Pull out the first soft plug 18 and inject an appropriate amount of clean water into the inner cavity of the water tank 17. Start the submersible pump 19 to draw the clean water in the inner cavity of the water tank 17 and spray it out evenly in an atomized manner through the second spray pipe 16, the first spray pipe 15 and multiple groups of nozzles 13, so that the atomized water can fully contact the sintering waste gas and filter the sintering waste gas again.

[0037] The filtered sintering waste gas is discharged through the fourth discharge pipe 14. Open the control valve on the second discharge pipe 11, and the used water body can be discharged through the second discharge pipe 11. Synchronously start multiple groups of cylinders 8 to contract and drive the blocking cross plate 7 to move downward. Under the action of gravity, the activated carbon in the inner cavity of the wire mesh frame 4 is quickly discharged, and then start the cylinder 8 again to drive the blocking cross plate 7 to reset and block the opening at the bottom of the wire mesh frame 4. Open the solenoid valve on the first discharge pipe 3 again, so that the activated carbon in the inner cavity of the collection frame 20 is injected into the inner cavity of the wire mesh frame 4 again through multiple groups of first discharge pipes 3, which is convenient for quickly replacing the activated carbon in the inner cavity of the wire mesh frame 4.

[0038] When replacing the activated carbon, start the drive motor 21 to drive the rotating shaft 1 to rotate, so as to drive multiple groups of stirring blades 2 to rotate synchronously. Under the action of multiple groups of stirring blades 2, the activated carbon can be smoothly discharged into the inner cavity of the wire mesh frame 4 through the first discharge pipe 3. Under the action of the transparent window 23, it is convenient for the staff to check the remaining amount of activated carbon and the remaining amount of clean water in the inner cavities of the collection frame 20 and the water tank 17 in real time.

[0039] The standard parts used in this utility model document can be purchased from the market. Each component in this utility model document can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, no specific description will be made here.

[0040] The above are all the preferred embodiments of this utility model, and the protection scope of this utility model is not limited hereby. Therefore, all equivalent changes made according to the structure, shape and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A waste gas treatment device for rare earth oxide sintering, comprising a bottom plate (9), characterized in that: A first exhaust gas treatment box (5) is installed on one side of the top wall of the bottom plate (9); a plurality of net frames (4) are evenly fixed on the bottom wall of the first exhaust gas treatment box (5); a collecting frame (20) is fixed on the top wall of the first exhaust gas treatment box (5); a plurality of first discharge pipes (3) extending into the inner cavity of the net frame (4) are evenly fixed on the bottom wall of the collecting frame (20); a solenoid valve is installed on the outside of the first discharge pipe (3); a plugging component in contact with the bottom ends of the plurality of net frames (4) is fixed on the top wall of the bottom plate (9); and an air intake pipe (6) is fixed on the bottom end of the outer wall of one side of the first exhaust gas treatment box (5).

2. The waste gas treatment device for rare earth oxide sintering according to claim 1, characterized in that: The blocking assembly comprises a cylinder (8), wherein a plurality of groups of the cylinders (8) are provided, wherein the plurality of groups of the cylinders (8) are fixed to the top wall of the bottom plate (9), and a blocking transverse plate (7) is fixed to the end of the output shaft of the plurality of groups of the cylinders (8).

3. The waste gas treatment device for rare earth oxide sintering according to claim 1, characterized in that: A driving motor (21) is fixed at the middle position of the top wall of the collecting frame (20), and a rotating shaft (1) extending into the inner cavity of the collecting frame (20) is installed at the output end of the driving motor (21), and a plurality of groups of stirring blades (2) are fixed at the outer wall of the rotating shaft (1).

4. The waste gas treatment device for rare earth oxide sintering according to claim 1, characterized in that: A second exhaust gas treatment box (10) is fixed at the other side of the top wall of the bottom plate (9); a third discharge pipe (12) extending into the inner cavity of the second exhaust gas treatment box (10) is fixed at the upper end of the outer wall of one side of the first exhaust gas treatment box (5); a fourth discharge pipe (14) is fixed at the upper end of the outer wall of the other side of the second exhaust gas treatment box (10); and a second discharge pipe (11) is fixed at the bottom end of the outer wall of the other side of the second exhaust gas treatment box (10).

5. The waste gas treatment device for rare earth oxide sintering according to claim 4, characterized in that: A water tank (17) is fixed on the top wall of the second exhaust gas treatment box (10), a submersible pump (19) is fixed on one side of the bottom wall of the inner cavity of the water tank (17), a second spray pipe (16) extending into the inner cavity of the second exhaust gas treatment box (10) is installed at the output end of the submersible pump (19), a first spray pipe (15) connected to the top wall of the inner cavity of the second exhaust gas treatment box (10) is fixed on the bottom end of the second spray pipe (16), and a plurality of nozzles (13) are evenly fixed on the bottom wall of the first spray pipe (15).

6. The waste gas treatment device for rare earth oxide sintering according to claim 5, characterized in that: A pluggable second soft plug (22) is provided on one side of the top wall of the collection frame (20), and a pluggable first soft plug (18) is provided on the top wall of the water tank (17).

7. The waste gas treatment device for rare earth oxide sintering according to claim 6, characterized in that: The front side walls of the collecting frame (20) and the water tank (17) are both provided with transparent windows (23).

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