Flue gas purification device for hydrofluoric acid production

Abstract

The utility model belongs to the technical field of hydrofluoric acid production, and particularly relates to a hydrofluoric acid production flue gas purification device which comprises a treatment box, a gas inlet pipe is arranged at the left end of the treatment box, an exhaust pipe is arranged at the right end of the treatment box, an anti-blocking assembly is arranged on the treatment box, and bottom feet are installed at the bottom end of the treatment box. A limiting assembly is arranged on the treatment box, two guide grooves are formed in the bottom wall of an inner cavity of the treatment box, and guide blocks are arranged in the two guide grooves in a sliding mode. Through the arrangement of the anti-blocking assembly, the problem that the follow-up filtering efficiency is affected by blocking in the filtering holes can be avoided, long-time use of the device is facilitated, and operation is convenient; according to the dust and impurity filtering device, dust and impurities can be filtered, the filtered dust and impurities can be collected through the material collecting box, the flat plate can be aligned and limited through the arrangement of the limiting assembly, and therefore the material collecting box can be limited, the stability of the material collecting box during dust and impurity collection is guaranteed, and the material collecting box can be conveniently detached and taken out, and follow-up treatment work can be conveniently conducted on the impurities.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrofluoric acid production, in particular to a flue gas purification device for hydrofluoric acid production. Background Technique

[0002] Hydrofluoric acid is an aqueous solution of hydrogen fluoride gas, a clear, colorless, fuming corrosive liquid with a strong pungent odor. Hydrofluoric acid is a weak acid with extremely strong corrosiveness, which can strongly corrode metals, glass and silicon-containing objects. Inhaling the vapor or contacting the skin will cause incurable burns.

[0003] According to the patent authorization number CN 208642276 U, a purification device for drying flue gas in hydrofluoric acid production is disclosed. The filtering structure in this application is fixedly arranged on the inner wall of the device body, and dust is likely to block the mesh holes after long-term use, affecting the activity effect and the service life of the device. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a flue gas purification device for hydrofluoric acid production, which solves the problems raised in the above background technique.

[0006] (2) Technical Solutions

[0007] The utility model specifically adopts the following technical solutions to achieve the above purposes:

[0008] A flue gas purification device for hydrofluoric acid production includes a treatment tank. An air inlet pipe is provided at the left end of the treatment tank, an exhaust pipe is provided at the right end of the treatment tank, an anti-blocking component is provided on the treatment tank, a bottom foot is installed at the bottom end of the treatment tank, a limiting component is provided on the treatment tank, two guiding grooves are opened on the inner bottom wall of the treatment tank, guiding blocks are slidably arranged in both of the two guiding grooves, a collecting box is commonly installed at the upper ends of the two guiding blocks, a leveling plate is installed at the front end of the collecting box, a handle is installed on the leveling plate, an activated carbon filter screen is installed on the right side of the inner cavity of the treatment tank, a filter plate is installed on the inner top wall of the treatment tank, and a group of filtering holes are opened at the upper end of the filter plate.

[0009] The anti-blocking component includes two limiting plates slidably connected to the treatment tank. A mounting plate is commonly connected to the bottom ends of the two limiting plates. A group of through rods are installed at the bottom end of the mounting plate. A screw rod is threadedly connected to the treatment tank. A knob is installed at the upper end of the screw rod. The screw rod is rotatably connected to the mounting plate.

[0010] Furthermore, the number of the through rods is the same as that of the filtering holes and they are located in the same vertical direction.

[0011] Further, the limiting component includes a U-shaped plate installed on the processing box. A slider is slidably connected inside the U-shaped plate. A pulling plate is installed at the upper end of the slider. The pulling plate is slidably connected to the U-shaped plate. A handle is installed at the upper end of the pulling plate. Attachment plates are installed at both ends of the slider. Springs are installed on both sides of the upper end of the slider. Both of the springs are connected to the U-shaped plate.

[0012] Further, the pulling plate is T-shaped.

[0013] Further, the slider is of H-shaped structure.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a hydrogen fluoride production flue gas purification device, which has the following beneficial effects:

[0016] In the utility model, through the setting of the anti-blocking component, the problem that the blockage in the filter holes affects the subsequent filtration efficiency can be avoided, which is convenient for the long-term use of the device and easy to operate; and through the material collection box, the filtered dust impurities can be collected. Through the setting of the limiting component, the alignment plate can be limited, so that the material collection box can be limited, thereby ensuring the stability of the material collection box when collecting dust impurities, and facilitating the disassembly and removal of the material collection box for subsequent processing of the impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the utility model;

[0018] Figure 2 is the internal structural schematic diagram of the processing box of the utility model;

[0019] Figure 3 is the structural schematic diagram of the anti-blocking component of the utility model;

[0020] Figure 4 is the structural schematic diagram of the limiting component of the utility model.

[0021] In the figure: 1, processing box; 2, anti-blocking component; 21, limiting plate; 22, mounting plate; 23, through rod; 24, screw rod; 25, knob; 3, bottom feet; 4, limiting component; 41, U-shaped plate; 42, pulling plate; 43, handle; 44, slider; 45, attachment plate; 46, spring; 5, guiding block; 6, material collection box; 7, filter plate; 8, filter hole; 9, alignment plate; 10, activated carbon filter mesh. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment

[0024] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown in, a hydrogen fluoride production flue gas purification device proposed in an embodiment of the present utility model includes a processing box 1. An air inlet pipe is provided at the left end of the processing box 1, an exhaust pipe is provided at the right end of the processing box 1, an anti-blocking component 2 is provided on the processing box 1, a bottom foot 3 is installed at the bottom end of the processing box 1, a limiting component 4 is provided on the processing box 1, two guiding grooves are opened on the inner bottom wall of the inner cavity of the processing box 1, guiding blocks 5 are slidably arranged in both of the two guiding grooves, a collecting box 6 is commonly installed at the upper ends of the two guiding blocks 5, a leveling plate 9 is installed at the front end of the collecting box 6, a handle is installed on the leveling plate 9, an activated carbon filter screen 10 is installed on the right side of the inner cavity of the processing box 1, a filter plate 7 is installed on the inner top wall of the inner cavity of the processing box 1, and a group of filtering holes 8 are opened at the upper end of the filter plate 7; the flue gas can be filtered through the filter plate 7 and the filtering holes 8, and the hydrogen fluoride in the waste gas can be adsorbed through the activated carbon filter screen 10, achieving the purpose of flue gas purification. And through the setting of the anti-blocking component 2, the problem that the filtering holes 8 are blocked and affect the subsequent filtering efficiency can be avoided, facilitating the long-term use of the device and the operation is convenient; and the filtered dust impurities can be collected through the collecting box 6. Through the setting of the limiting component 4, the leveling plate 9 can be limited, and thus the collecting box 6 can be limited, thereby ensuring the stability of the collecting box 6 when collecting dust impurities, and facilitating the disassembly and removal of the collecting box 6 for subsequent processing of the impurities.

[0025] The anti-blocking component 2 includes two limiting plates 21 slidably connected to the processing box 1. The bottom ends of the two limiting plates 21 are commonly connected to a mounting plate 22. A group of through rods 23 are installed at the bottom end of the mounting plate 22. A screw rod 24 is threadedly connected to the processing box 1. A knob 25 is installed at the upper end of the screw rod 24. The screw rod 24 is rotatably connected to the mounting plate 22; by rotating the knob 25, the screw rod 24 is driven to rotate, driving the mounting plate 22 to slide as the limiting plates 21 slide down in the processing box 1, thereby driving the through rods 23 to move downward. When the through rods 23 slide into the filtering holes 8, the impurity dust blocked in the filtering holes 8 can be pushed out into the collecting box 6, so that the filtering holes 8 can be regularly cleaned, achieving the purpose of anti-blocking.

[0026] As Figure 3As shown, in some embodiments, the number of through rods 23 is the same as that of the filtering holes 8 and they are located in the same vertical direction; this avoids clogging of the mesh holes.

[0027] As Figure 4 As shown, in some embodiments, the limiting component 4 includes a U-shaped plate 41 mounted on the processing box 1. A slider 44 is slidably connected inside the U-shaped plate 41. A pull plate 42 is mounted at the upper end of the slider 44. The pull plate 42 is slidably connected to the U-shaped plate 41. A handle 43 is mounted at the upper end of the pull plate 42. Closer plates 45 are mounted at both ends of the slider 44. Springs 46 are mounted on both sides of the upper end of the slider 44. Both springs 46 are connected to the U-shaped plate 41. When cleaning the material collection box 6, by pulling the handle 43, the pull plate 42 is driven to slide upward on the U-shaped plate 41, thereby driving the slider 44 to slide upward inside the U-shaped plate 41 and squeezing the springs 46, thereby driving the two closer plates 45 to move upward. When the closer plates 45 are no longer in contact with the leveling plate 9, the leveling plate 9 can be pulled out by the handle, that is, the material collection box 6 is driven to slide out of the guide groove along with the guide block 5, completing the removal of the material collection box 6, which is convenient for cleaning the impurities collected inside.

[0028] As Figure 4 As shown, in some embodiments, the pull plate 42 is T-shaped; the limiting effect is good.

[0029] As Figure 4 As shown, in some embodiments, the slider 44 has an H-shaped structure; the limiting effect is good.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A flue gas purification device for hydrofluoric acid production, comprising a treatment box (1), characterized in that: The left end of the treatment box (1) is provided with an air inlet pipe, the right end of the treatment box (1) is provided with an exhaust pipe, the treatment box (1) is provided with an anti-blocking component (2), the bottom end of the treatment box (1) is provided with a foot (3), the treatment box (1) is provided with a limit component (4), the bottom wall of the inner cavity of the treatment box (1) is provided with two guide grooves, guide blocks (5) are slid in the two guide grooves, a material receiving box (6) is commonly installed at the upper ends of the two guide blocks (5), a flush plate (9) is installed at the front end of the material receiving box (6), a handle is installed on the flush plate (9), an activated carbon filter (10) is installed on the right side of the inner cavity of the treatment box (1), a filter plate (7) is installed on the top wall of the inner cavity of the treatment box (1), and a group of filter holes (8) are opened at the upper end of the filter plate (7); The anti-blocking component (2) comprises two limit plates (21) slidably connected to the processing box (1); the bottom ends of the two limit plates (21) are commonly connected to a mounting plate (22); a group of through rods (23) are installed at the bottom end of the mounting plate (22); a screw rod (24) is threadedly connected to the processing box (1); a knob (25) is installed at the upper end of the screw rod (24); and the screw rod (24) is rotatably connected to the mounting plate (22).

2. A hydrofluoric acid production flue gas purification device according to claim 1, characterized in that: The number of the through rods (23) is the same as the number of the filtering holes (8) and they are located in the same vertical direction.

3. A hydrofluoric acid production flue gas purification device according to claim 1, characterized in that: The limiting assembly (4) comprises a circular plate (41) mounted on the processing box (1), a slider (44) being slidably connected inside the circular plate (41), a pulling plate (42) being mounted on the upper end of the slider (44), the pulling plate (42) being slidably connected to the circular plate (41), a handle (43) being mounted on the upper end of the pulling plate (42), a sticking plate (45) being mounted on both ends of the slider (44), springs (46) being mounted on both sides of the upper end of the slider (44), and the two springs (46) being connected to the circular plate (41).

4. A hydrofluoric acid production flue gas purification device according to claim 3, characterized in that: The pull plate (42) is T-shaped.

5. A hydrofluoric acid production flue gas purification device according to claim 3, characterized in that: The sliding block (44) has an H-shaped structure.

Images