Hydrofluoric acid recovery device

Abstract

The utility model relates to the technical field of hydrofluoric acid, and discloses a hydrofluoric acid recovery device which comprises a treatment box, supporting legs, a communicating pipe, a water inlet pipe, a filtering device, an output box, a liquid outlet and an output device, the supporting legs are fixedly connected to the bottom of the treatment box, and the communicating pipe is fixedly connected to the interior of the treatment box; the other end of the communicating pipe penetrates through the treatment box, the water inlet pipe is fixedly connected to the bottom of the communicating pipe, the filtering device is arranged in the treatment box, and the output box is fixedly connected to the bottom of the treatment box. According to the hydrofluoric acid recovery device, by arranging the filtering device, hydrofluoric acid waste liquid can be filtered, the hydrofluoric acid waste liquid needs to be filtered out from the filtering cylinder, then the waste liquid filtering sufficiency is guaranteed, meanwhile, calcium fluoride on the inner wall of the filtering cylinder can be scraped and recovered, the filtering cylinder can be prevented from being blocked, and the filtering effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrofluoric acid, in particular to a hydrofluoric acid recovery device. Background Art

[0002] Hydrofluoric acid is an aqueous solution of hydrogen fluoride (HF). It is a colorless, easy-flowing liquid that emits smoke in the air. It is highly corrosive and can corrode glass. Due to its highly corrosive nature, hydrofluoric acid is increasingly used in industrial and household applications. In the industrial field, the main use of hydrofluoric acid is to remove metal oxides. Other uses include household rust and stain removal and car washing. Car washing is the area where chemical products are most concentrated. In daily car washing, hydrofluoric acid is generally still used because it has a relatively low cost, especially when purchased in large quantities. (The standard procedure for car washing operations is to dilute a 10% to 12% hydrofluoric acid solution and other ingredients in 55 gallons of water).

[0003] For example, Chinese patent: CN212609973U, the technical solution disclosed in the patent is as follows: a device for recovering waste liquid hydrofluoric acid containing water, comprising a separation box, the bottom wall of the separation box is connected to a collection tube through a collection tube, a sealing plate is provided at the top of the collection tube, a pressure rod is fixed at the top of the sealing plate, an electric push rod is fixed at the top of the pressure rod, the electric push rod is fixed through and fixed to the top wall of the separation box, a recovery tube with a valve is connected to the position of the bottom wall of the separation box near the collection tube, and a filter cartridge is fixed at the position of the bottom wall of the separation box corresponding to the recovery tube, a horizontal scraper is provided above the filter cartridge, and vertical scrapers are symmetrically fixed at the left and right ends of the horizontal scraper; the utility model realizes the separation and recovery of calcium sulfate and hydrofluoric acid by adding a filter cartridge, a sealing plate and a collection tube, etc., which is beneficial to saving resources; by adding a horizontal scraper, a vertical scraper and a stirring rod, etc., the filter cartridge is prevented from being blocked and the separation efficiency is reduced, which is beneficial to the full reaction of lime water with a small amount of waste liquid falling from the collection tube.

[0004] However, in actual use, the filter cartridge in the above patent is at the lowest point, so it cannot filter all the waste liquid. There will always be a small amount of waste liquid that is not filtered, so the filtering effect is not sufficient. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a hydrofluoric acid recovery device.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydrofluoric acid recovery device, comprising a treatment box, a support leg, a connecting pipe, a water inlet pipe, a filtering device, an output box, a liquid outlet, and an output device, wherein the supporting leg is fixedly connected to the bottom of the treatment box, the connecting pipe is fixedly connected to the inside of the treatment box, the other end of the connecting pipe passes through the treatment box, the water inlet pipe is fixedly connected to the bottom of the connecting pipe, the filtering device is arranged inside the treatment box, the output box is fixedly connected to the bottom of the treatment box, and the liquid outlet is opened at the bottom of the treatment box and the top of the output box. , the output device is arranged inside and outside the output box; the filtering device includes a filter cartridge, a collecting bucket, a scraper, a motor, a transmission rod, a worm, a worm gear ring, and a collecting frame; the filter cartridge is rotatably sleeved on the outside of the connecting pipe, the collecting bucket is fixedly connected to the upper end of the connecting pipe, the scraper is fixedly connected to the upper end of the collecting bucket, the motor is fixedly connected to the outer wall of the processing box, the transmission rod is fixedly connected to the output end of the motor, and the other end of the transmission rod passes through the processing box, the worm is fixedly sleeved on the outside of the transmission rod, and the worm gear ring is fixedly sleeved on the outer wall of the filter cartridge.

[0009] Preferably, the collecting frame is arranged inside the collecting bucket, and the collecting bucket and the collecting frame are in an inverted trapezoidal shape.

[0010] Preferably, the scraper is arranged at an angle, and one end of the scraper away from the connecting pipe is in close contact with the inner wall of the filter cartridge, thereby cleaning the calcium fluoride on the inner wall of the filter cartridge.

[0011] Preferably, the output device includes a first transmission wheel, the first transmission wheel is fixedly connected to one end of a transmission rod located outside the processing box, a transmission belt is wound around the outer wall of the first transmission wheel, the other side of the transmission belt is internally connected to a second transmission wheel, the outer wall of the second transmission wheel is fixedly connected to a rotating rod, and the outer wall of the rotating rod is fixedly connected to a spiral blade.

[0012] Preferably, an inspection door is provided on the outer wall of the filter cartridge.

[0013] Preferably, the outermost end of the spiral blade is located outside the output box.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a hydrofluoric acid recovery device, which has the following beneficial effects:

[0016] 1. This hydrofluoric acid recovery device can filter hydrofluoric acid waste liquid by setting a filtering device. Because the hydrofluoric acid waste liquid needs to be filtered out from the filter cartridge, the adequacy of the waste liquid filtration is ensured. At the same time, the calcium fluoride on the inner wall of the filter cartridge can be scraped off and recovered, thereby avoiding clogging of the filter cartridge and ensuring the filtering effect.

[0017] 2. This hydrofluoric acid recovery device, by setting an output device, can drive the worm ring and the filter cartridge to rotate through the worm gear while the transmission rod drives the rotating rod to rotate through the first transmission wheel, the transmission belt and the second transmission wheel, and finally drives the spiral blade to rotate, thereby realizing the transportation of the filtered filtrate to the next link. The transportation speed can be controlled by the spiral blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0021] Figure 3 It is a front sectional structural schematic diagram of the utility model.

[0022] In the figure: 1. treatment box; 2. support leg; 3. connecting pipe; 4. water inlet pipe; 501. filter cartridge; 502. collecting bucket; 503. scraper; 504. motor; 505. transmission rod; 506. worm; 507. worm gear ring; 508. collecting frame; 6. output box; 7. liquid outlet; 801. first transmission wheel; 802. transmission belt; 803. second transmission wheel; 804. rotating rod; 805. spiral blade; 9. inspection door. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Example 1

[0025] like Figure 1-3As shown, the utility model provides a hydrofluoric acid recovery device, including a treatment box 1, a support leg 2, a connecting pipe 3, a water inlet pipe 4, a filtering device, an output box 6, a liquid outlet 7, and an output device, wherein the supporting leg 2 is fixedly connected to the bottom of the treatment box 1, the connecting pipe 3 is fixedly connected to the inside of the treatment box 1, the other end of the connecting pipe 3 passes through the treatment box 1, the water inlet pipe 4 is fixedly connected to the bottom of the connecting pipe 3, the filtering device is arranged inside the treatment box 1, the output box 6 is fixedly connected to the bottom of the treatment box 1, the liquid outlet 7 is opened at the bottom of the treatment box 1 and the top of the output box 6, and the output device is arranged inside and outside the output box 6; the filtering device includes Filter cartridge 501, collecting bucket 502, scraper 503, motor 504, transmission rod 505, worm 506, worm gear ring 507, and collecting frame 508; filter cartridge 501 is rotatably sleeved on the outside of connecting pipe 3, collecting bucket 502 is fixedly connected to the upper end of connecting pipe 3, scraper 503 is fixedly connected to the upper end of collecting bucket 502, motor 504 is fixedly connected to the outer wall of processing box 1, transmission rod 505 is fixedly connected to the output end of motor 504, and the other end of transmission rod 505 passes through processing box 1, worm 506 is fixedly sleeved on the outside of transmission rod 505, and worm gear ring 507 is fixedly sleeved on the outer wall of filter cartridge 501.

[0026] The collecting frame 508 is disposed inside the collecting bucket 502, and the collecting bucket 502 and the collecting frame 508 are in an inverted trapezoidal shape.

[0027] The scraper 503 is arranged at an angle, and one end of the scraper 503 away from the connecting pipe 3 is in close contact with the inner wall of the filter cartridge 501 , thereby cleaning the calcium fluoride on the inner wall of the filter cartridge 501 .

[0028] An inspection door 9 is provided on the outer wall of the filter cartridge 501 .

[0029] In this embodiment, by setting up a filtering device, hydrofluoric acid waste liquid can be filtered, because the hydrofluoric acid waste liquid needs to be filtered out from the filter cartridge 501, thereby ensuring the adequacy of the waste liquid filtration, and at the same time, the calcium fluoride on the inner wall of the filter cartridge 501 can be scraped off and recovered, thereby avoiding clogging of the filter cartridge 501 and ensuring the filtering effect.

[0030] When in use, the waste liquid is first transmitted to the inside of the treatment box 1 and the filter cartridge 501 through the connecting pipe 3, and then the waste liquid enters the inside of the filter cartridge 501 through the water inlet pipe 4. At this time, the filter cartridge 501 will filter the waste liquid, and the calcium fluoride will remain in the inside of the filter cartridge 501. The filtered filtrate will flow to the bottom of the treatment box 1. At this time, the motor 504 is started to drive the transmission rod 505 to rotate, and then the worm 506 will rotate accordingly, and then the worm gear ring 507 engaged therewith will rotate accordingly, thereby driving the filter cartridge 501 to rotate, and the collection bucket 502 and the scraper 503 are fixed, so the scraper 503 will scrape and clean the inner wall of the filter cartridge 501, and then the calcium fluoride will slide through the scraper 503 to the collection frame 508 inside the collection bucket 502. When the calcium fluoride needs to be taken out, the inspection door 9 is opened to take out the collection frame 508.

[0031] Example 2

[0032] like Figure 1-3 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the output device includes a first transmission wheel 801, the first transmission wheel 801 is fixedly connected to one end of the transmission rod 505 located outside the processing box 1, a transmission belt 802 is wound around the outer wall of the first transmission wheel 801, and the other side of the transmission belt 802 is internally connected to the second transmission wheel 803, the outer wall of the second transmission wheel 803 is fixedly connected to the rotating rod 804, and the outer wall of the rotating rod 804 is fixedly connected to the spiral blade 805.

[0033] An inspection door 9 is provided on the outer wall of the filter cartridge 501 .

[0034] In this embodiment, by setting up an output device, the transmission rod 505 can drive the worm ring 507 and the filter cartridge 501 to rotate through the worm 506, and at the same time, the rotating rod 804 can be driven to rotate under the transmission action of the first transmission wheel 801, the transmission belt 802 and the second transmission wheel 803, and finally the spiral blade 805 can be driven to rotate, thereby realizing the transportation of the filtered filtrate to the next link, and the transportation speed can be controlled by the spiral blade 805.

[0035] When in use, the filtrate at the bottom of the treatment box 1 will flow out to the inside of the output box 6 through the liquid outlet 7. At the same time, the rotation of the transmission rod 505 will drive the first transmission wheel 801 to rotate, and then the second transmission wheel 803 will be driven to rotate under the transmission action of the transmission belt 802. Then the second transmission wheel 803 will drive the rotating rod 804 to rotate, and then drive the spiral blade 805 to rotate, so that the filtrate inside the output box 6 can be transported out of the output box 6.

Claims

1. A hydrofluoric acid recovery device, comprising a treatment box (1), a support leg (2), a connecting pipe (3), a water inlet pipe (4), a filtering device, an output box (6), a liquid outlet (7), and an output device, characterized in that: The support leg (2) is fixedly connected to the bottom of the treatment box (1), the connecting pipe (3) is fixedly connected to the inside of the treatment box (1), the other end of the connecting pipe (3) passes through the treatment box (1), the water inlet pipe (4) is fixedly connected to the bottom of the connecting pipe (3), the filtering device is arranged inside the treatment box (1), the output box (6) is fixedly connected to the bottom of the treatment box (1), the liquid outlet (7) is provided at the bottom of the treatment box (1) and the top of the output box (6), and the output device is arranged inside and outside the output box (6); The filtering device comprises a filtering cartridge (501), a collecting bucket (502), a scraper (503), a motor (504), a transmission rod (505), a worm (506), a worm wheel ring (507), and a collecting frame (508); The filter cartridge (501) is rotatably sleeved on the outside of the connecting pipe (3); the collecting bucket (502) is fixedly connected to the upper end of the connecting pipe (3); the scraper (503) is fixedly connected to the upper end of the collecting bucket (502); the motor (504) is fixedly connected to the outer wall of the processing box (1); the transmission rod (505) is fixedly connected to the output end of the motor (504), and the other end of the transmission rod (505) passes through the processing box (1); the worm (506) is fixedly sleeved on the outside of the transmission rod (505); and the worm wheel ring (507) is fixedly sleeved on the outer wall of the filter cartridge (501).

2. A hydrofluoric acid recovery device according to claim 1, characterized in that: The collecting frame (508) is arranged inside the collecting bucket (502), and the collecting bucket (502) and the collecting frame (508) are in an inverted trapezoidal shape.

3. A hydrofluoric acid recovery device according to claim 1, characterized in that: The scraper (503) is arranged at an angle, and one end of the scraper (503) away from the connecting pipe (3) is in close contact with the inner wall of the filter cartridge (501).

4. A hydrofluoric acid recovery device according to claim 1, characterized in that: The output device comprises a first transmission wheel (801), the first transmission wheel (801) is fixedly connected to one end of a transmission rod (505) located outside the processing box (1), a transmission belt (802) is wound around the outer wall of the first transmission wheel (801), the other side of the transmission belt (802) is internally connected to a second transmission wheel (803), the outer wall of the second transmission wheel (803) is fixedly connected to a rotating rod (804), and the outer wall of the rotating rod (804) is fixedly connected to a spiral blade (805).

5. A hydrofluoric acid recovery device according to claim 1, characterized in that: The outer wall of the filter cartridge (501) is provided with an inspection door (9).

6. A hydrofluoric acid recovery device according to claim 4, characterized in that: The outermost end of the spiral blade (805) is located outside the output box (6).

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