Fluorite powder bag dust collector
By designing an inclined exhaust pipe and drainage mechanism in the fluorite powder bag filter, the problem of fluoride ion water vapor corroding the equipment in the flue gas was solved, enabling rapid discharge of fluoride-containing water, preventing equipment damage, and ensuring stable production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI FOUND TECH
- Filing Date
- 2025-07-16
- Publication Date
- 2026-06-26
AI Technical Summary
During the drying process of fluorite powder, fluoride ions in the flue gas are easily soluble in water, causing water vapor to adhere to the inner wall of the dust collector and corrode the equipment, affecting production.
A fluorite powder bag filter dust collector is designed, which adopts an inclined exhaust pipe and a drainage mechanism installed at the bottom of the exhaust pipe. The gravity of the water is used to quickly discharge the water containing fluoride ions from the accumulation area to prevent corrosion.
It effectively prevents fluoride ion water vapor from adhering to the inner wall of the dust collector, avoids equipment corrosion, and ensures production continuity.
Smart Images

Figure CN224404644U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust collectors, and in particular to a fluorite powder bag dust collector. Background Technology
[0002] Fluorite powder is usually a white powder or colorless cubic crystals, but some fluorite powder may exhibit various colors such as yellow, green, blue, and purple due to impurities. It has a melting point of 1402℃, a boiling point of 2500℃, a relative density of 3.18, and a refractive index of 1.434. Its hardness is approximately 4, making it brittle; its Mohs hardness is relatively low, and it is easily scratched. It glows when heated and exhibits fluorescence or phosphorescence under ultraviolet light or cathode rays. Fluorite powder is almost insoluble in water, with a solubility of 0.0017 g / 100 mL water at 25℃. It is soluble in concentrated inorganic acids, decomposing to release hydrogen fluoride, and slightly soluble in dilute inorganic acids.
[0003] The main uses of fluorite powder are:
[0004] Metallurgical Industry: As a flux, it is widely used in iron and steel smelting and ferroalloy production, ironmaking process and non-ferrous metal smelting. It can lower the melting point of refractory materials, promote slag flow, and make slag and metal separate well. In the smelting process, it can also play a role in desulfurization and dephosphorization, and enhance the malleability and tensile strength of metals.
[0005] In the chemical industry, hydrofluoric acid is a key raw material for the production of various organic and inorganic fluorides, as well as the element fluorine. In the aluminum industry, it is used to produce aluminum fluoride, synthetic cryolite, sodium fluoride, and magnesium fluoride, among others.
[0006] In the building materials industry, it is added as a mineralizer in cement production, which can lower the sintering temperature of the furnace charge, reduce fuel consumption, and increase the viscosity of the clinker liquid phase during sintering, promoting the formation of tricalcium silicate. It can also be used as a catalyst in the manufacture of opaline glass, enamel products, and high-octane fuel oil.
[0007] In the field of optics: Due to its low dispersion, low refractive index and high filtering properties for ultraviolet and infrared light, it is used to manufacture high-transmittance lenses, filters, prisms and high-quality optical components, such as optical lenses and radomes for infrared laser systems.
[0008] Furthermore, with the widespread application of lithium batteries in electric vehicles, lithium battery projects have received substantial investment and factory construction in China. Fluorite is an important raw material for lithium batteries and plays a crucial role in the manufacturing process.
[0009] In the process of drying fluorite powder, heat exchange occurs between hot air and fluorite powder through convection inside the dryer. The rotating drum creates a "stirring" effect. Moisture is filtered by a bag filter at the tail end of the dryer along with the flue gas. The flue gas contains fluoride ions, water vapor, and other minerals. Fluoride ions are easily soluble in water. When water vapor containing fluoride ions adheres to the inner wall of the dust collector, it can easily corrode the equipment, causing damage and affecting production. Improvements are needed. Utility Model Content
[0010] The purpose of this invention is to provide a fluorite powder bag dust collector to solve the above-mentioned technical problems.
[0011] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:
[0012] A fluorite powder bag dust collector includes a flue pipe, the left end of which is fixedly connected to the flue port of a dryer, and a filter cloth is provided at the right end of the flue pipe. The edge of the filter cloth is fixedly connected to the inner wall of a connecting ring. The connecting ring is connected to the right end of the flue pipe by multiple screws. The flue pipe is inclined, with the right end of the flue pipe being higher than the left end. A drainage mechanism is installed inside the flue pipe.
[0013] Preferably, a silicone sealing ring is provided between the connecting ring and the right end of the exhaust pipe, and the screw passes through the silicone sealing ring.
[0014] Preferably, the drainage mechanism includes a semi-circular baffle located at the bottom left end of the exhaust pipe. A guide tube is fixedly mounted on the top of the baffle, and a guide rod is installed inside the guide tube. The guide tube and the guide rod are slidably engaged. The right end of the guide rod is fixedly connected to the upper end of a support column, and the lower end of the support column is fixedly connected to the bottom of the inner wall of the exhaust pipe. A sealing plug is fixedly mounted at the bottom of the baffle. The left end of the sealing plug is fixedly connected to the right end of multiple springs. The left end of each spring is fixedly connected to a limiting block, and the limiting block is fixedly connected to the bottom left end of the exhaust pipe. A drain pipe is installed below the sealing plug, with its upper end penetrating the bottom of the exhaust pipe and fixedly connected to it. A water bucket is installed below the drain pipe.
[0015] Preferably, a rubber ring is fixed to the edge of the baffle.
[0016] Preferably, the left end of the guide rod is fixedly connected to the limiting plate.
[0017] Preferably, the inner wall of the guide tube is provided with sliding grooves on both the front and rear sides, and a sliding strip is provided in the sliding groove, and the sliding strip is fixedly connected to the guide rod.
[0018] Preferably, a plurality of support plates are fixedly sleeved on the exhaust pipe, and the bottom of the support plates is fixedly connected to the ground.
[0019] The beneficial effects of this utility model are:
[0020] This invention allows water containing fluoride ions to accumulate at the bottom of the exhaust pipe. The weight of the water pushes open the sealing plug blocking the drain pipe, thus quickly draining the water containing fluoride ions and preventing corrosion. After the drying operation stops, the sealing plug can be moved back to its original position. This effectively solves the problem that when water vapor containing fluoride ions adheres to the inner wall of the dust collector, it easily corrodes the equipment, causing damage and affecting production. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the drainage mechanism of this utility model;
[0023] Figure 3 This utility model Figure 2 Enlarged schematic diagram of part A;
[0024] Reference numerals: 1. Water bucket; 2. Drain pipe; 3. Smoke exhaust pipe; 4. Support plate; 5. Silicone sealing ring; 6. Connecting ring; 7. Filter cloth; 8. Rubber ring; 9. Guide rod; 10. Support column; 11. Sliding strip; 12. Baffle; 13. Sealing plug; 14. Spring; 15. Limiting block; 16. Limiting disc; 17. Guide tube; 18. Slide groove. Detailed Implementation
[0025] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.
[0026] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0027] Example 1
[0028] like Figure 1-3 As shown, a fluorite powder bag dust collector includes a flue pipe 3. The left end of the flue pipe 3 is fixedly connected to the flue port of the dryer. A filter cloth 7 is provided at the right end of the flue pipe 3. The edge of the filter cloth 7 is fixedly connected to the inner wall of the connecting ring 6. The connecting ring 6 is connected to the right end of the flue pipe 3 by multiple screws. The flue pipe 3 is inclined and the right end of the flue pipe 3 is higher than the left end of the flue pipe 3. A drainage mechanism is installed inside the flue pipe 3.
[0029] The flue gas generated when the dryer dries fluorite powder is discharged into the exhaust pipe 3. After being filtered by the filter cloth 7, the flue gas is discharged outside the exhaust pipe 3.
[0030] Example 2
[0031] like Figure 1-3 As shown, while other parts are the same as in Embodiment 1, the difference between this embodiment and Embodiment 1 is that a silicone sealing ring 5 is provided between the connecting ring 6 and the right end of the exhaust pipe 3, and a screw passes through the silicone sealing ring 5. The drainage mechanism includes a semi-circular baffle 12, which is located at the bottom left end of the exhaust pipe 3. A guide tube 17 is fixedly provided at the top of the baffle 12, and a guide rod 9 is provided inside the guide tube 17. The guide tube 17 and the guide rod 9 are slidably engaged. The right end of the guide rod 9 is fixedly connected to the upper end of the support column 10, and the lower end of the support column 10 is fixedly connected to the bottom of the inner wall of the exhaust pipe 3. A sealing plug 13 is fixedly provided at the bottom of the baffle 12. The left end of the sealing plug 13 is fixedly connected to the right end of multiple springs 14. The left end of the springs 14 is fixedly connected to the limiting block 15. The limiting block 15 is fixedly connected to the bottom left end of the exhaust pipe 3. A drain pipe 2 is provided below the sealing plug 13. The upper end of the drain pipe 2 passes through the bottom of the exhaust pipe 3 and is fixedly connected to the exhaust pipe 3. A water bucket 1 is provided below the drain pipe 2. A rubber ring 8 is fixedly installed on the edge of the baffle 12. The left end of the guide rod 9 is fixedly connected to the limiting plate 16. Slide grooves 18 are opened on both the front and rear sides of the inner wall of the guide tube 17. Slide strips 11 are installed in the slide grooves 18 and are fixedly connected to the guide rod 9. Multiple support plates 4 are fixedly fitted on the exhaust pipe 3, and the bottom of the support plates 4 is fixedly connected to the ground.
[0032] Water vapor in the flue gas condenses on the inner wall of the exhaust pipe 3, then slides down the inner wall of the exhaust pipe 3 to the bottom of the exhaust pipe 3 and accumulates at the bottom of the exhaust pipe 3. The baffle 12 can prevent water from flowing back into the dryer. The water at the bottom of the exhaust pipe 3 and the water on the inner wall can be used to absorb fluoride ions in the flue gas.
[0033] Because the exhaust pipe 3 is tilted, the water accumulated at the bottom of the exhaust pipe 3 pushes the baffle 12 and the sealing plug 13 to the left under the action of gravity, compressing the spring 14. This causes the guide pipe 17 to move to the left along the guide rod 9, so that the sealing plug 13 no longer blocks the upper end of the drain pipe 2. This allows the water at the bottom of the exhaust pipe 3 to be discharged into the water tank 1 through the drain pipe 2. When the dryer stops working, there is no more water accumulating in the exhaust pipe 3. Under the action of the spring 14, the sealing plug 13 is pushed to move in the opposite direction and reset, blocking the drain pipe 2 again.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fluorite powder bag filter dust collector, characterized in that: Includes a smoke exhaust pipe (3), the left end of which is fixedly connected to the smoke exhaust port of the dryer, and a filter cloth (7) is provided at the right end of the smoke exhaust pipe (3). The edge of the filter cloth (7) is fixedly connected to the inner wall of the connecting ring (6). The connecting ring (6) is connected to the right end of the smoke exhaust pipe (3) by multiple screws. The smoke exhaust pipe (3) is inclined and the right end of the smoke exhaust pipe (3) is higher than the left end of the smoke exhaust pipe (3). A drainage mechanism is installed inside the smoke exhaust pipe (3).
2. The fluorite powder bag dust collector according to claim 1, characterized in that: A silicone sealing ring (5) is provided between the connecting ring (6) and the right end of the exhaust pipe (3), and the screw passes through the silicone sealing ring (5).
3. A fluorite powder bag filter dust collector according to claim 2, characterized in that: The drainage mechanism includes a semi-circular baffle (12) located at the bottom left end of the exhaust pipe (3). A guide tube (17) is fixedly mounted on the top of the baffle (12), and a guide rod (9) is installed inside the guide tube (17). The guide tube (17) and the guide rod (9) are slidably connected. The right end of the guide rod (9) is fixedly connected to the upper end of the support column (10), and the lower end of the support column (10) is fixedly connected to the bottom of the inner wall of the exhaust pipe (3). The bottom of the baffle (12) is... A sealing plug (13) is fixedly provided in the part. The left end of the sealing plug (13) is fixedly connected to the right end of a plurality of springs (14). The left end of the springs (14) is fixedly connected to a limiting block (15). The limiting block (15) is fixedly connected to the bottom left end of the exhaust pipe (3). A drain pipe (2) is provided below the sealing plug (13). The upper end of the drain pipe (2) penetrates the bottom of the exhaust pipe (3). The drain pipe (2) is fixedly connected to the exhaust pipe (3). A water bucket (1) is provided below the drain pipe (2).
4. A fluorite powder bag filter dust collector according to claim 3, characterized in that: A rubber ring (8) is fixed to the edge of the baffle (12).
5. A fluorite powder bag filter dust collector according to claim 4, characterized in that: The left end of the guide rod (9) is fixedly connected to the limiting plate (16).
6. A fluorite powder bag filter dust collector according to claim 5, characterized in that: The guide tube (17) has grooves (18) on both the front and rear sides of its inner wall. A slide bar (11) is provided in the groove (18), and the slide bar (11) is fixedly connected to the guide rod (9).
7. A fluorite powder bag filter dust collector according to claim 6, characterized in that: Multiple support plates (4) are fixedly sleeved on the exhaust pipe (3), and the bottom of the support plates (4) are fixedly connected to the ground.