Fluorine-containing waste acid filtering device

Abstract

The utility model relates to the technical field of filtering equipment, and particularly discloses a fluorine-containing waste acid filtering device which comprises a support, a filtering cylinder and a filtering net, the filtering cylinder is installed on the support, the filtering cylinder is square, an opening is formed in the side face of the filtering cylinder, a movable door is arranged at the opening, a containing frame is arranged on the inner side of the movable door, the filtering net is in a cuboid shape, and the filtering net is installed on the containing frame. A sliding groove is formed in the inner wall of the filter cylinder, a boss corresponding to the sliding groove is arranged on the side face of the containing frame, a rectangular plate is arranged at the upper end of the filter screen, the filter screen is installed on the containing frame through the rectangular plate, a rotating handle is hinged to the rectangular plate and located in the rectangular plate, and when the filter screen needs to be lifted, the rotating handle rotates around a hinge point to the outside of the rectangular plate, so that the filter screen is conveniently lifted out. The hydraulic rod is connected outside the movable door, the movable door is opened or closed through stretching and retracting of the hydraulic rod, the filter screen can be replaced only by controlling stretching and retracting of the hydraulic rod, the filter screen is convenient and fast to replace, and when the filter screen is replaced, the rotary handle is rotated to the position above the rectangular plate, and the filter screen is convenient to lift out.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter equipment technical field, concretely is a kind of fluorine-containing waste acid filter device. BACKGROUND

[0002] The main component of fluorine-containing silicon slag is silicon dioxide, and the etching waste acid contains hydrofluoric acid. When recycling the fluorine-containing silicon slag and the etching waste acid, the fluorine-containing silicon slag can be added to the etching waste liquid to dissolve the silicon dioxide in the hydrofluoric acid to generate fluorosilicic acid, and the sodium salt (sodium sulfate / sodium chloride) reacts with the fluorosilicic acid to generate sodium fluorosilicate precipitate. After being filtered, washed, and dried, the sodium fluorosilicate product is obtained. A filter screen is used in the treatment process. Since the fluorine-containing waste acid is corrosive, the filter screen will be corroded after being used for a period of time, and the filter screen needs to be frequently replaced. The commonly used filter device usually installs a cylindrical filter screen in a cylindrical filter cartridge. When replacing the filter screen, the filter cartridge needs to be opened, and the new filter screen is installed after the old filter screen is removed. The cylindrical filter screen is not convenient to replace. The patent with the announcement number "CN218596322U" discloses an edible oil precipitation device. The filter screen used in the precipitation device is a cylindrical filter screen. When replacing the filter screen, the nut needs to be removed, and the filter screen can be removed after the cover plate is opened. The impurities on the filter screen are cleaned. The filter screen is not convenient to replace. SUMMARY

[0003] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a fluorine-containing waste acid filter device to solve the problem of inconvenient replacement of the existing cylindrical filter screen.

[0004] To solve the above problems, the utility model adopts the following technical scheme: a fluorine-containing waste acid filter device includes a support, a filter cartridge, and a filter screen. The filter cartridge is installed on the support. The filter cartridge is square. The filter cartridge side is provided with an opening. The opening is provided with a movable door. The inner side of the movable door is provided with a placing frame. The filter screen is in the shape of a cuboid. The filter screen is installed on the placing frame. The inner wall of the filter cartridge is provided with a sliding groove. The side of the placing frame is provided with a boss corresponding to the sliding groove. The upper end of the filter screen is a rectangular plate. The filter screen is installed on the placing frame through the rectangular plate. A rotating handle is hinged to the rectangular plate. The rotating handle is located in the rectangular plate. When the filter screen needs to be lifted, the rotating handle is rotated around the hinge point to the outside of the rectangular plate to facilitate lifting the filter screen. The movable door is connected with a hydraulic rod. The hydraulic rod is used to open or close the movable door.

[0005] The beneficial effects of the scheme are that, compared with the prior art, the scheme sets a square filter cartridge and filter screen, a movable door is arranged on the side surface of the filter cartridge in a sliding mode, a hydraulic rod drives the movable door to slide, the filter screen is installed on the placing frame of the movable door, the movable door drives the filter screen to enter or exit the filter cartridge, when the filter screen is replaced, the filter screen can be replaced only by controlling the extension and retraction of the hydraulic rod, the filter screen is replaced conveniently and quickly, the rotary handle is arranged on the filter screen, the rotary handle is located in the rectangular plate on the filter screen when the movable door slides, the rotary handle is prevented from interfering with the filter cartridge during the sliding process, and the rotary handle is rotated above the rectangular plate when the filter screen is replaced, so that the filter screen is conveniently taken out.

[0006] Further, the inner wall of the filter cartridge is provided with inclined plates around, the bottom of the inclined plates surrounds a rectangular hole, and the size of the rectangular hole is smaller than that of the rectangular plate, so that the fluorine-containing waste acid liquid is ensured to enter the filter screen along the inclined plates for filtration.

[0007] Further, the upper end of the filter cartridge is connected with an inlet pipe, the lower end of the filter cartridge is connected with an outlet pipe, a valve is arranged on the inlet pipe, and the liquid flows into the filter device when the valve is opened, and the valve is closed to cut off the liquid when the filter screen is replaced.

[0008] Further, the hydraulic rod is connected with a control valve, the extension and retraction of the hydraulic rod are controlled through a control button, and the movable door is opened or closed.

[0009] Further, a sealing ring is arranged at the cooperation position between the movable door and the opening of the side surface of the filter cartridge, so that the sealing property of the filter cartridge is improved and the solution is prevented from leaking out.

[0010] Further, the rotary handle is in a curved shape, so that a gap exists between the handle and the rectangular plate, and the rotary handle is conveniently rotated from the inside of the rectangular plate to the outside of the rectangular plate. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is a whole structure schematic view of the utility model;

[0012] Fig. 2 It is a sectional view schematic view of the utility model;

[0013] Fig. 3 It is a movable door opening state schematic view of the utility model;

[0014] Fig. 4 It is a filter screen structure schematic view of the utility model;

[0015] In the drawing: 1 - support, 2 - filter cartridge, 3 - filter screen, 4 - movable door, 5 - placing frame, 6 - hydraulic rod, 7 - inlet pipe, 8 - outlet pipe, 9 - inclined plate, 10 - rectangular plate, 11 - rotary handle. DETAILED DESCRIPTION

[0016] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0017] The embodiments are shown as follows: Figs. 1-2 The filter device for fluorine-containing waste acid comprises a support 1, a filter cartridge 2 and a filter screen 3, the filter cartridge 2 is installed on the support 1, the filter cartridge 2 is square, an opening is arranged on the side surface of the filter cartridge 2, a movable door 4 is arranged at the opening, a placing frame 5 is arranged on the inner side of the movable door 4, the filter screen 3 is in the shape of a cuboid, the filter screen 3 is installed on the placing frame 5, a sliding groove is arranged on the inner wall of the filter cartridge 2, a boss corresponding to the sliding groove is arranged on the side surface of the placing frame 5, the upper end of the filter screen 3 is a rectangular plate 10, the filter screen 3 is installed on the placing frame 5 through the rectangular plate 10, a rotating handle 11 is hinged on the rectangular plate 10, the rotating handle 11 is located in the rectangular plate 10, when the filter screen 3 needs to be lifted, the rotating handle 11 is rotated around the hinge point to the outside of the rectangular plate 10, so that the filter screen 3 is conveniently lifted, and a hydraulic rod 6 is connected to the outside of the movable door 4, the movable door 4 is opened or closed through the extension and retraction of the hydraulic rod 6.

[0018] The inner wall of the filter cartridge 2 is surrounded by an inclined plate 9, the bottom of the inclined plate 9 is surrounded by a rectangular hole, the size of the rectangular hole is smaller than that of the rectangular plate 10, so that the fluorine-containing waste acid liquid is ensured to enter the filter screen 3 along the inclined plate 9 for filtration; a liquid inlet pipe 7 is connected to the upper end of the filter cartridge 2, a liquid outlet pipe 8 is connected to the lower end of the filter cartridge 2, a valve is arranged on the liquid inlet pipe 7, when the valve is opened, the liquid flows into the filter device, and when the filter screen 3 is replaced, the valve is closed to cut off the liquid flow; the hydraulic rod 6 is connected to a control valve, the extension and retraction of the hydraulic rod 6 are controlled through a control button, and the movable door 4 is opened or closed; a sealing ring is arranged at the joint between the movable door 4 and the opening on the side surface of the filter cartridge 2, so that the sealing property of the filter cartridge 2 is improved to prevent the solution from leaking out; the rotating handle 11 is in a curved shape, so that there is a gap between the handle and the rectangular plate 10, and the rotating handle 11 is conveniently rotated from the inside of the rectangular plate 10 to the outside of the rectangular plate 10.

[0019] The specific implementation process is as follows:

[0020] When the filter screen 3 is replaced, the valve on the liquid inlet pipe 7 is closed to stop the fluorine-containing waste acid solution from flowing, the control button of the hydraulic rod 6 is pressed, the control valve controls the hydraulic rod 6 to shorten, the movable door 4 with the filter screen 3 to be replaced slides out of the filter cylinder 2 along the sliding groove, the filter screen 3 and the filtered material are taken out through the rotating handle 11 on the filter screen 3, a new filter screen 3 is installed on the placing frame 5, the control button is pressed, the hydraulic rod 6 is elongated, the movable door 4 with the new filter screen 3 slides into the filter cylinder 2 along the sliding groove, and the movable door 4 and the filter cylinder 2 are tightly matched when the placing frame 5 abuts against the inner wall of the filter cylinder 2, at this time, the hydraulic rod 6 is elongated to the maximum stroke, the hydraulic oil pressure continuously acts on the hydraulic rod 6, the pressure of the hydraulic rod 6 on the movable door 4 is maintained, the movable door 4 and the filter cylinder 2 are tightly matched, the filter cylinder 2 is provided with a sealed environment, the fluorine-containing waste acid solution in the filter cylinder 2 cannot leak from the movable door 4, the valve is opened to continue filtering the solution, the filter cylinder 2 is square-shaped, the sliding groove is conveniently arranged, the movable door 4 and the hydraulic rod 6 are arranged to make the filter screen 3 automatically enter and exit the filter cylinder 2, the rotating handle 11 is arranged to facilitate the operator to take out the filter screen 3, and the replacement is convenient and simple to operate.

[0021] The above is only an embodiment of the present application, and the specific structure and characteristics of the scheme are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A fluoride-containing waste acid filtration device, comprising a support frame, a filter cartridge, and a filter screen, wherein the filter cartridge is mounted on the support frame, characterized in that: The filter cartridge is square with an opening on its side. A movable door is provided at the opening, and a placement frame is provided inside the movable door. The filter screen is rectangular in shape and is installed on the placement frame. The inner wall of the filter cartridge has a sliding groove, and the side of the placement frame has a protrusion corresponding to the sliding groove. The upper part of the filter screen is a rectangular plate, which is used to install the filter screen on the placement frame. A rotating handle is hinged to the rectangular plate. A hydraulic rod is connected to the outside of the movable door, and the movable door is opened or closed by extending or retracting the hydraulic rod.

2. The fluoride-containing waste acid filtration device according to claim 1, characterized in that: The filter cartridge has inclined plates around its inner wall, and the bottom of the inclined plates forms a rectangular hole, the size of which is smaller than that of the rectangular plates.

3. The fluoride-containing waste acid filtration device according to claim 1, characterized in that: The upper end of the filter cartridge is connected to the liquid inlet pipe, and the lower end of the filter cartridge is connected to the liquid outlet pipe. A valve is provided on the liquid inlet pipe.

4. The fluoride-containing waste acid filtration device according to claim 1, characterized in that: The hydraulic rod is connected to a control valve, and the extension and retraction of the hydraulic rod are controlled by a control button.

5. The fluoride-containing waste acid filtration device according to claim 1, characterized in that: A sealing ring is provided at the junction of the movable door and the side opening of the filter cartridge.

6. The fluoride-containing waste acid filtration device according to claim 1, characterized in that: The rotating handle is curved.

Images