Hydrofluoric acid purification equipment

Abstract

The utility model relates to the technical field of hydrofluoric acid, and discloses hydrofluoric acid purification equipment which comprises a box body, a feeding hole is formed in the upper portion of the box body, a filtering assembly is arranged on the inner surface of the feeding hole, a lifting assembly is arranged below the filtering assembly, a cleaning assembly is arranged on the right side of the filtering assembly, and the cleaning assembly comprises a collecting box. The collecting box is fixedly connected with the right side of the box body, a baffle is fixedly connected to the upper portion of the collecting box, a sliding strip is fixedly connected to the front face of the inner surface of the baffle, a cleaning groove is slidably connected to the front face of the sliding strip, and a handle is fixedly connected to the upper portion of the cleaning groove. After the lifting assembly drives the filtering assembly to ascend, the filtering assembly is rotated, a filtering net is inserted into the cleaning assembly, cleaning is facilitated, cleaned chippings do not fall into a feeding hole, and the function of conveniently and properly collecting cleaned impurities is achieved.

Description

Technical Field

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

[0002] In the process of producing high-purity hydrofluoric acid, heavy metal arsenic exists in a trivalent state. Since the boiling point of trivalent arsenic is almost the same as that of hydrofluoric acid, it cannot be removed by either distillation or degassing. It is difficult to remove it simply by improving the process. For this reason, people have adopted a new chemical removal method, that is, by adding potassium permanganate solution to anhydrous hydrogen fluoride, its chemical composition is changed, so that trivalent arsenic becomes pentavalent arsenic. The boiling point of pentavalent arsenic is much higher than that of hydrofluoric acid, so it can be well removed by the distillation process. However, this method is easy to introduce new impurities such as manganese and potassium, so that the hydrofluoric acid after arsenic removal contains more insoluble solid impurities. Therefore, after industrial purification of hydrofluoric acid, it needs to be filtered to remove impurities in the solution.

[0003] For example, the Chinese patent publication number CN219984088U, "A hydrofluoric acid purification device", discloses a hydrofluoric acid purification device, including a box body, a flow port opened inside the box body, a support ring is arranged inside the flow port, a filter is placed inside the support ring, a lifting assembly is arranged outside the box body, a first bracket is arranged on the lifting assembly, a connecting rod is fixedly connected to the bottom end of the first bracket, the lower end of the connecting rod is fixedly connected to the support ring, a moving block is arranged at the bottom of the lifting assembly, a guide rail is fixedly connected to the side wall of the box body, and the moving block is slidably arranged on the guide rail. In this utility model, the vertical height of the first bracket is adjusted by the lifting assembly, the support ring and the filter inside the support ring are moved out of the flow port, and then the support ring is moved horizontally so that the filter is in contact with the brush, and the impurities on the filter are cleaned. Under the action of gravity, the impurity particles fall into the collection box, and the purpose of cleaning the filter is achieved.

[0004] However, in actual use, there is a problem that impurities are easy to jump into the flow port when cleaning the filter. When the filter is raised and slid forward, the brush will scrape the top of the filter, and dust is easily bounced back into the flow port by the brush, thereby affecting the next purification quality of hydrofluoric acid. Therefore, a hydrofluoric acid purification device is proposed to solve the above-mentioned problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a hydrofluoric acid purification device in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a hydrofluoric acid purification equipment, including a box body, a feed hole is opened on the top of the box body, a filter assembly is arranged on the inner surface of the feed hole, a lifting assembly is arranged below the filter assembly, a cleaning assembly is arranged on the right side of the filter assembly, the cleaning assembly includes a collecting box, the collecting box is fixedly connected to the right side of the box body, a baffle is fixedly connected on the top of the collecting box, a sliding bar is fixedly connected on the front side of the inner surface of the baffle, a cleaning groove is slidably connected on the front side of the sliding bar, and a handle is fixedly connected on the top of the cleaning groove. When it is necessary to clean the filter net, the lifting assembly drives the connecting rod to raise the filter net, and then the rotating seat is rotated counterclockwise to drive the connecting rod to insert the filter net into the cleaning groove. At this time, the cleaning groove is pulled by the handle to slide back and forth on the sliding bar in the baffle, so that the brush layer in the cleaning groove cleans both sides of the filter net, and the cleaned impurities will be blocked by the baffle and will not bounce into the feed hole. The impurities will eventually fall into the collection box and be collected.

[0007] Preferably, a discharge pipe is fixedly connected to the back of the box body, and the discharge pipe is connected to the inner surface of the feed hole. When in use, the hydrofluoric acid solution is first poured into the feed hole, and the hydrofluoric acid solution will be filtered and purified by the filter net. The purified hydrofluoric acid solution will reach the bottom of the feed hole, and the purified hydrofluoric acid solution will be discharged through the discharge pipe.

[0008] Preferably, the filter assembly includes a filter screen, which is movably fitted with the inner surface of the feed hole, a connecting rod is fixedly connected above the filter screen, a rotating seat is fixedly connected below the connecting rod, a first plug is fixedly connected to the front of the connecting rod, and a limiting assembly is arranged on the right side of the first plug.

[0009] Preferably, the lifting assembly includes an electric slide rail, which is fixedly connected to the front side of the box body, and a sliding seat is slidably connected to the front side of the electric slide rail. The sliding seat is rotatably connected to the bottom of the rotating seat. The sliding seat is driven to rise by the electric slide rail, thereby driving the rotating seat and the connecting rod to raise the filter screen, and the filter screen will extend out of the feed hole. At this time, the first plug will be stuck by the second plug, so that after the filter screen extends out of the feed hole, the rotating seat cannot drive the connecting rod to rotate the filter screen.

[0010] Preferably, the limiting assembly includes a spring telescopic rod, the spring telescopic rod is fixedly connected to the top of the sliding seat, a second plug-in piece is fixedly connected to the left side of the spring telescopic rod, and the second plug-in piece is plugged into the bottom of the first plug-in piece.

[0011] Preferably, the limit assembly also includes a top plate, which is arranged above the spring telescopic rod and fixedly connected to the front side of the box body. The sliding seat is driven to rise by an electric slide rail until the top plate presses the spring telescopic rod downward, and the second plug-in plate on the spring telescopic rod will fall off from under the first plug-in plate to release the fixation of the connecting rod. At this time, the rotating seat can drive the connecting rod to rotate, so as to facilitate the insertion of the filter into the cleaning tank.

[0012] The utility model adopts the above technical solution, which can bring the following beneficial effects:

[0013] 1. This hydrofluoric acid purification equipment drives the filter component to rise through the lifting component, and then rotates the filter component to insert the filter screen into the cleaning component for easy cleaning. The cleaned debris will not fall into the feed hole, which has the function of facilitating the proper collection of cleaned impurities.

[0014] 2. This hydrofluoric acid purification equipment limits the filter assembly by a limiting component when it is raised or lowered so that it cannot rotate. When the lifting component drives the filter assembly to rise to the top, the limiting component releases the fixation of the filter assembly, allowing the filter assembly to rotate, which facilitates automatic release of the limit. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a left view of the overall structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the utility model in a cleaning state;

[0018] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0019] In the figure: 1. box body; 2. feed hole; 3. filter assembly; 301. filter screen; 302. connecting rod; 303. rotating seat; 304. first plug; 4. lifting assembly; 401. electric slide rail; 402. sliding seat; 5. cleaning assembly; 501. collection box; 502. baffle; 503. sliding bar; 504. cleaning slot; 505. handle; 6. discharge pipe; 7. limit assembly; 701. spring telescopic rod; 702. second plug; 703. top sheet. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 An embodiment of the utility model is: a hydrofluoric acid purification device, including a box body 1, a feed hole 2 is opened on the top of the box body 1, the feed hole 2 is used to put hydrofluoric acid, a discharge pipe 6 is fixedly connected to the back of the box body 1, the discharge pipe 6 is connected to the inner surface of the feed hole 2, a filter assembly 3 is arranged on the inner surface of the feed hole 2, the filter assembly 3 includes a filter screen 301, a sealing gasket is arranged on the edge of the filter screen 301, the sealing gasket will squeeze the inner wall of the feed hole 2, the filter screen 301 and the inner surface of the feed hole 2 are movably fitted, a connecting rod 302 is fixedly connected to the top of the filter screen 301, a rotating seat 303 is fixedly connected to the bottom of the connecting rod 302, and a first plug 3 is fixedly connected to the front of the connecting rod 302 04, a limiting component 7 is arranged on the right side of the first plug 304, a lifting component 4 is arranged below the filter component 3, a cleaning component 5 is arranged on the right side of the filter component 3, the cleaning component 5 includes a collecting box 501, the collecting box 501 is fixedly connected to the right side of the box body 1, a baffle 502 is fixedly connected above the collecting box 501, a sliding bar 503 is fixedly connected to the front of the inner surface of the baffle 502, the side cross-section shape of the sliding bar 503 is trapezoidal, a cleaning groove 504 is slidably connected to the front of the sliding bar 503, a dovetail groove matched with the sliding bar 503 is arranged on the back of the cleaning groove 504, a brush layer is arranged on the inner surface of the cleaning groove 504, and a handle 505 is fixedly connected to the top of the cleaning groove 504.

[0022] Working principle: When in use, first pour the hydrofluoric acid solution into the feed hole 2, the hydrofluoric acid solution will be filtered and purified by the filter 301, and the purified hydrofluoric acid solution will reach the bottom of the feed hole 2. At this time, the purified hydrofluoric acid solution will be discharged through the discharge pipe 6. When the filter 301 needs to be cleaned, the connecting rod 302 is driven by the lifting component 4 to make the filter 301 rise, and then the rotating seat 303 is rotated counterclockwise to drive the connecting rod 302 to insert the filter 301 into the cleaning groove 504. At this time, the cleaning groove 504 is pulled by the handle 505 to slide back and forth on the sliding bar 503 in the baffle 502, so that the brush layer in the cleaning groove 504 cleans both sides of the filter 301, and the cleaned impurities will be blocked by the baffle 502 so that they will not bounce into the feed hole 2, and the impurities will eventually fall into the collection box 501 and be collected.

[0023] See also Figure 1-4On the basis of the above embodiments, in another embodiment of the utility model, the lifting assembly 4 includes an electric slide rail 401, which is fixedly connected to the front of the box body 1, and a sliding seat 402 is slidably connected to the front of the electric slide rail 401. The electric slide rail 401 is used to drive the sliding seat 402 to lift and lower, and the sliding seat 402 is rotatably connected to the bottom of the rotating seat 303. The limiting assembly 7 includes a spring telescopic rod 701, which is fixedly connected to the top of the sliding seat 402, and a second plug-in piece 702 is fixedly connected to the left side of the spring telescopic rod 701. The second plug-in piece 702 is plugged into the bottom of the first plug-in piece 304, and a groove is provided on the side of the second plug-in piece 702 opposite to the first plug-in piece 304. The limiting assembly 7 also includes a top sheet 703, which is arranged above the spring telescopic rod 701, and the top sheet 703 is fixedly connected to the front of the box body 1.

[0024] Working principle: The sliding seat 402 is driven to rise by the electric slide rail 401, thereby driving the rotating seat 303 and the connecting rod 302 to make the filter 301 rise, and the filter 301 will extend from the feed hole 2. At this time, the first plug 304 will be stuck by the second plug 702, so that after the filter 301 extends from the feed hole 2, the rotating seat 303 cannot drive the connecting rod 302 to rotate the filter 301. At this time, the sliding seat 402 continues to be driven to rise by the electric slide rail 401 until the top plate 703 presses the spring telescopic rod 701 downward, and the second plug 702 on the spring telescopic rod 701 will fall off from under the first plug 304 to release the fixation of the connecting rod 302. At this time, the rotating seat 303 can drive the connecting rod 302 to rotate, so as to facilitate the insertion of the filter 301 into the cleaning tank 504.

[0025] The utility model provides a hydrofluoric acid purification device. There are many methods and ways to implement the technical solution. The above is only the preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model. These improvements and modifications should also be regarded as the protection scope of the utility model. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A hydrofluoric acid purification device, comprising a housing (1), characterized in that: A feeding hole (2) is provided on the top of the box body (1), a filter assembly (3) is provided on the inner surface of the feeding hole (2), a lifting assembly (4) is provided below the filter assembly (3), a cleaning assembly (5) is provided on the right side of the filter assembly (3), and the cleaning assembly (5) comprises a collecting box (501), the collecting box (501) is fixedly connected to the right side of the box body (1), a baffle (502) is fixedly connected on the top of the collecting box (501), a sliding bar (503) is fixedly connected on the front side of the inner surface of the baffle (502), a cleaning groove (504) is slidably connected to the front side of the sliding bar (503), and a handle (505) is fixedly connected on the top of the cleaning groove (504).

2. A hydrofluoric acid purification equipment according to claim 1, characterized in that: A discharge pipe (6) is fixedly connected to the back of the box body (1), and the discharge pipe (6) is connected to the inner surface of the feed hole (2).

3. A hydrofluoric acid purification equipment according to claim 2, characterized in that: The filter assembly (3) comprises a filter screen (301), the filter screen (301) being movably fitted with the inner surface of the feed hole (2), a connecting rod (302) being fixedly connected above the filter screen (301), a rotating seat (303) being fixedly connected below the connecting rod (302), a first plug-in sheet (304) being fixedly connected to the front of the connecting rod (302), and a limit assembly (7) being arranged on the right side of the first plug-in sheet (304).

4. A hydrofluoric acid purification equipment according to claim 3, characterized in that: The lifting assembly (4) comprises an electric slide rail (401), the electric slide rail (401) is fixedly connected to the front of the box body (1), the front of the electric slide rail (401) is slidably connected to a sliding seat (402), and the sliding seat (402) is rotatably connected to the bottom of the rotating seat (303).

5. A hydrofluoric acid purification device according to claim 4, characterized in that: The limiting assembly (7) comprises a spring telescopic rod (701), wherein the spring telescopic rod (701) is fixedly connected to the top of the sliding seat (402), and a second plug-in piece (702) is fixedly connected to the left side of the spring telescopic rod (701), and the second plug-in piece (702) is plugged into the bottom of the first plug-in piece (304).

6. A hydrofluoric acid purification device according to claim 5, characterized in that: The limiting assembly (7) further comprises a top sheet (703), wherein the top sheet (703) is arranged above the spring telescopic rod (701), and the top sheet (703) is fixedly connected to the front face of the box body (1).

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