Fluorite powder recovery and purification equipment

Abstract

The utility model provides fluorite powder recycling and purifying equipment, which belongs to the technical field of fluorite powder and comprises a filter cartridge and an air inlet pipe, a partition plate is fixedly arranged in the filter cartridge and divides the filter cartridge into a first chamber and a second chamber, a filter plate is fixedly mounted in the first chamber and the second chamber, and a scraping rod is rotatably arranged in the first chamber and the second chamber; the air inlet pipe is communicated with a first connecting pipe and a second connecting pipe through a valve assembly, the first connecting pipe is communicated with the first cavity, and the second connecting pipe is communicated with the second cavity; transmission pieces are arranged in the first connecting pipe and the second connecting pipe, the transmission piece in the first connecting pipe is in transmission fit with the scraping rod in the second cavity, and the transmission piece in the second connecting pipe is in transmission fit with the scraping rod in the first cavity. According to the scheme, the gas inlet pipe can be selectively communicated with the first cavity and the second cavity through the valve assembly, continuous filtering work is carried out while the flue gas introduction amount is not changed, and therefore the flue gas filtering efficiency is guaranteed, and the overall practical effect is better.

Description

Technical Field

[0001] This utility model belongs to the field of fluorite powder technology, specifically relating to a fluorite powder recycling and purification device. Background Technology

[0002] Fluorite powder is an important industrial mineral raw material, its main component being calcium fluoride. It is a colorless or white crystalline powder with an isometric crystal structure and low hardness. It is sparingly soluble in water, but can release hydrofluoric acid in concentrated inorganic acids. Hydrofluoric acid is produced by reacting acid-grade fluorite with sulfuric acid in a heating furnace or tank. The production of hydrofluoric acid generates flue gas containing a large amount of fluorite powder. To avoid large-scale emissions of fluorite powder and environmental pollution, it is necessary to recover the fluorite powder from the flue gas. Therefore, there is an urgent need for fluorite powder recovery and purification equipment.

[0003] A patent with publication number CN221656080U discloses a fluorite powder recovery and purification device, which includes a filter chamber, filter bags, an air inlet, an air outlet, an air bag, and an electric push rod. In operation, flue gas is introduced into the filter chamber through the air inlet. The flue gas is filtered by the filter bags and then discharged through the air outlet. When it is necessary to clean and recover the fluorite powder on the surface of the filter bags, the electric push rod causes the air bag and filter bags to repeatedly expand and contract, causing the fluorite powder on the surface of the filter bags to fall off. During this process, flue gas can continue to be introduced uninterruptedly, thus achieving continuous filtration.

[0004] However, in order to improve filtration efficiency, the above-mentioned equipment needs to control the amount of flue gas introduced during the process of cleaning the fluorite powder on the surface of the filter bag and achieving uninterrupted filtration. This results in a large amount of flue gas not being able to be introduced into the filter chamber during the cleaning period, thereby reducing the filtration efficiency of the flue gas and the practical effect is generally poor. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a fluorite powder recovery and purification device.

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

[0007] A fluorite powder recovery and purification device includes a filter cartridge and an air inlet pipe. A partition is fixedly installed inside the filter cartridge, dividing it into a first chamber and a second chamber. Filter plates are fixedly installed in both the first and second chambers, and scrapers are rotatably mounted within them. The air inlet pipe is connected to a first connecting pipe and a second connecting pipe via a valve assembly. The first connecting pipe communicates with the first chamber, and the second connecting pipe communicates with the second chamber. Both the first and second connecting pipes contain transmission components. The transmission component in the first connecting pipe engages with the scraper in the second chamber, and the transmission component in the second connecting pipe engages with the scraper in the first chamber.

[0008] Furthermore, an exhaust pipe, a discharge pipe, and a guide block are fixedly installed in the first chamber and the second chamber, with the exhaust pipe located above the filter plate and the discharge pipe and guide block located below the filter plate.

[0009] Furthermore, the guide block is tilted toward the discharge pipe, and a valve is fixedly installed inside the discharge pipe.

[0010] Furthermore, the transmission component includes a fixed box, which is fixedly connected to the first connecting pipe. The fixed box is fixedly installed on the outer surface of the filter cylinder. A first rotating shaft is rotatably disposed inside the fixed box, and a fan blade is fixedly disposed on the outer surface of the first rotating shaft inside the fixed box. A second rotating shaft is rotatably disposed on the filter plate in the second chamber, and a scraper is fixedly disposed on the outer surface of the second rotating shaft. Pulleys are fixedly sleeved on both the first and second rotating shafts, and a belt is sleeved between the two pulleys for transmission.

[0011] Furthermore, a mounting bracket is fixedly installed on the filter cartridge.

[0012] This application has the following beneficial effects:

[0013] 1. This solution utilizes a valve assembly to selectively connect the intake pipe to both the first and second chambers. Furthermore, while the filter cartridge filters the flue gas through the first chamber, the scraper in the second chamber automatically cleans the filter plates there. Similarly, while the filter cartridge filters the flue gas through the second chamber, the scraper in the first chamber automatically cleans the filter plates there. This process allows for uninterrupted filtration without changing the flue gas flow rate, ensuring efficient filtration and resulting in better overall performance.

[0014] 2. During the process of flue gas entering the first or second chamber, the scraper in the chamber that is not being filled with flue gas will automatically rotate to clean the filter plate. This process does not require an additional drive source, which reduces the construction difficulty of the control system. Attached Figure Description

[0015] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

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

[0017] Figure 2 This is a schematic diagram of the connection structure between the valve assembly of this utility model and the first connecting pipe and the second connecting pipe;

[0018] Figure 3 This is a cross-sectional view of the filter cartridge and fixing box of this utility model;

[0019] Figure 4 This is a cross-sectional view of the entire utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Filter cartridge; 2. Air inlet pipe; 3. Valve assembly; 4. First connecting pipe; 5. Second connecting pipe; 6. Fixing box; 7. Fan blade; 8. First rotating shaft; 9. Belt; 10. Second rotating shaft; 11. Scraper; 12. Filter plate; 13. Guide block; 14. Baffle plate; 15. Discharge pipe; 16. Valve; 17. Exhaust pipe; 18. Mounting bracket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] like Figures 1-4 As shown, the technical solution adopted by this utility model is as follows: a fluorite powder recovery and purification device includes a filter cylinder 1 and an air inlet pipe 2. An installation frame 18 is fixedly installed on the filter cylinder 1, and a partition 14 is fixedly installed inside the filter cylinder 1. The partition 14 divides the filter cylinder 1 into a first chamber and a second chamber (not marked in the figure). A filter plate 12 is fixedly installed in both the first chamber and the second chamber, and a scraper 11 is rotatably installed. The scraper 11 is rotatably attached to the bottom of the filter plate 12.

[0024] The first chamber and the second chamber are also fixedly equipped with an exhaust pipe 17, a discharge pipe 15 and a guide block 13. The exhaust pipe 17 is located above the filter plate 12, the discharge pipe 15 and the guide block 13 are located below the filter plate 12, the guide block 13 is inclined towards the discharge pipe 15, and a valve 16 is fixedly installed inside the discharge pipe 15.

[0025] The intake pipe 2 is connected to a first connecting pipe 4 and a second connecting pipe 5 via a valve assembly 3. The first connecting pipe 4 communicates with a first chamber, and the second connecting pipe 5 communicates with a second chamber. Both the first connecting pipe 4 and the second connecting pipe 5 contain a transmission component. The transmission component in the first connecting pipe 4 engages with the scraper rod 11 in the second chamber, and the transmission component in the second connecting pipe 5 engages with the scraper rod 11 in the first chamber. It should be noted that the valve assembly 3 is mainly used to regulate the flow direction of the flue gas and can consist of two solenoid valves, one located in the first connecting pipe 4 and the other in the second connecting pipe 5.

[0026] The transmission components include a fixed box 6, which is fixedly connected to the first connecting pipe 4. The fixed box 6 is fixedly installed on the outer surface of the filter cylinder 1. A first rotating shaft 8 is rotatably installed inside the fixed box 6, and a fan blade 7 is fixedly installed on the outer surface of the first rotating shaft 8 inside the fixed box 6. A second rotating shaft 10 is coaxially rotatably installed on the filter plate 12 in the second chamber. The upper end of the second rotating shaft 10 extends rotatably into the partition plate 14, and a scraper 11 is fixedly installed on the outer surface of the second rotating shaft 10. Furthermore, pulleys (not marked in the figure) are fixedly sleeved on both the first rotating shaft 8 and the second rotating shaft 10, and a belt 9 is sleeved between the two pulleys for transmission. A clearance groove is provided on the partition plate 14 for the belt 9 to drive.

[0027] Similarly, the transmission components inside the second connecting pipe 5 are the same as those inside the first connecting pipe 4, and will not be described in detail in this solution.

[0028] Working principle: When in use, adjust valve assembly 3 to connect air intake pipe 2 with first connecting pipe 4, and disconnect air intake pipe 2 from second connecting pipe 5.

[0029] After the intake pipe 2 is connected to the first connecting pipe 4, the flue gas is introduced through the intake pipe 2. The flue gas enters the first chamber through the first connecting pipe 4 and the fixed box 6. After the flue gas enters the first chamber, it is filtered by the filter plate 12 in the first chamber and discharged from the exhaust pipe 17. The fluorite powder in the flue gas will adhere to the lower surface of the filter plate 12.

[0030] As the device is used, more and more fluorite powder will adhere to the lower surface of the filter plate 12. When the amount of fluorite powder adhering to the lower surface of the filter plate 12 reaches a certain level, the lower surface of the filter plate 12 needs to be cleaned and the fluorite powder recovered.

[0031] At this time, the regulating valve assembly 3 disconnects the air inlet pipe 2 from the first connecting pipe 4 and connects it to the second connecting pipe 5. Subsequently, the flue gas enters the second chamber through the second connecting pipe 5 and the fixed box 6, where the filter plate 12 filters the flue gas. During this process, the flue gas flowing through the second connecting pipe 5 blows the fan blade 7 inside the fixed box 6, causing the fan blade 7 to rotate. This rotates the first rotating shaft 8 connected to the fan blade 7, which in turn drives the second rotating shaft 10 inside the first chamber to rotate via the transmission of the pulley and belt 9.

[0032] The rotation of the second rotating shaft 10 in the first chamber will drive the scraper 11 in the first chamber to rotate, thereby cleaning the lower surface of the filter plate 12 in the first chamber, and scraping the fluorite powder onto the guide block 13 below. The powder is then guided by the inclined surface of the guide block 13 to the discharge pipe 15 below. Then, by opening the valve 16, the fluorite powder can be collected.

[0033] Therefore, during the filtration process in the second chamber, the scraper 11 in the first chamber automatically cleans the lower surface of the filter plate 12 in the first chamber. Similarly, during the filtration process in the first chamber, the scraper 11 in the second chamber automatically cleans the lower surface of the filter plate 12 in the second chamber, thus ensuring uninterrupted filtration without changing the flue gas flow rate, guaranteeing filtration efficiency and resulting in better overall performance.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fluorite powder recovery and purification apparatus, characterized by, The filter includes a filter cartridge (1) and an air inlet pipe (2). A partition (14) is fixedly installed inside the filter cartridge (1), which divides the filter cartridge (1) into a first chamber and a second chamber. Filter plates (12) are fixedly installed in the first chamber and a scraper (11) is rotatably installed in the second chamber. The air inlet pipe (2) is connected to a first connecting pipe (4) and a second connecting pipe (5) through a valve assembly (3). The first connecting pipe (4) is connected to the first chamber and the second connecting pipe (5) is connected to the second chamber. Both the first connecting pipe (4) and the second connecting pipe (5) are equipped with transmission components. The transmission component in the first connecting pipe (4) is in transmission cooperation with the scraper (11) in the second chamber, and the transmission component in the second connecting pipe (5) is in transmission cooperation with the scraper (11) in the first chamber.

2. A device for recovering and purifying fluorite powder according to claim 1, characterized in that, An exhaust pipe (17), a discharge pipe (15), and a guide block (13) are fixedly installed in the first chamber and the second chamber. The exhaust pipe (17) is located above the filter plate (12), and the discharge pipe (15) and the guide block (13) are located below the filter plate (12).

3. A device for recovering and purifying fluorite powder according to claim 2, characterized in that, The guide block (13) is inclined toward the discharge pipe (15), and a valve (16) is fixedly installed inside the discharge pipe (15).

4. A device for recovering and purifying fluorite powder according to claim 1, characterized in that, The transmission component includes a fixed box (6), which is fixedly connected to the first connecting pipe (4). The fixed box (6) is fixedly installed on the outer surface of the filter cylinder (1). A first rotating shaft (8) is rotatably installed inside the fixed box (6). A fan blade (7) is fixedly installed on the outer surface of the first rotating shaft (8) inside the fixed box (6). A second rotating shaft (10) is rotatably installed on the filter plate (12) in the second chamber. A scraper (11) is fixedly installed on the outer surface of the second rotating shaft (10). Pulleys are fixedly sleeved on both the first rotating shaft (8) and the second rotating shaft (10). A belt (9) is sleeved between the two pulleys for transmission.

5. A device for recovering and purifying fluorite powder according to claim 1, characterized in that, The filter cartridge (1) is fixedly provided with a mounting bracket (18).

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