Extraction tower for wet refining of phosphoric acid

Abstract

The utility model discloses an extraction tower for wet refining of phosphoric acid, which belongs to the technical field of phosphoric acid production and comprises a tower body, a light blocking part and a driving component. For light-sensitive to-be-extracted liquid, the driving assembly drives the light blocking piece to rotate, the area of the observation window shielded by the light blocking piece is changed, and the amount of light entering the observation window is adjusted; the light inlet quantity at the observation window is matched with the light quantity required by the to-be-extracted liquid, so that the extraction effect of the to-be-extracted liquid is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of phosphoric acid production, in particular to an extraction tower used for wet-process refined phosphoric acid. Background Art

[0002] Pure industrial phosphoric acid is a colorless, transparent, viscous liquid or orthorhombic crystals, odorless, with a very sour taste. Commercially available phosphoric acid is generally 85% phosphoric acid, resulting in a colorless, transparent, or slightly pale, viscous liquid. It is primarily used in the electroplating, pharmaceutical, phosphate, and metallurgical industries. Phosphoric acid vapor is highly corrosive to the skin, so workers should take precautions to protect their respiratory organs and skin. Wet-process phosphoric acid is primarily used to manufacture various phosphates, such as ammonium phosphate, potassium dihydrogen phosphate, disodium hydrogen phosphate, trisodium phosphate, and condensed phosphates. Refined phosphoric acid is used to produce calcium hydrogen phosphate for feed. It is also used in phosphating metal surfaces and in the preparation of electrolytic and chemical polishing solutions for aluminum products. In the pharmaceutical industry, it is used to manufacture sodium phosphate and iron phosphate, as well as zinc phosphate for dental filling adhesives. It is used as a catalyst for the condensation of phenolic resins and as a desiccant in the production of fuels and intermediates. In the printing industry, it is used to prepare cleaning solutions for removing stains from offset color printing plates. It is also used to prepare matchstick stain solutions. In the metallurgical industry, it is used to produce phosphoric acid refractory clay to extend the life of steelmaking furnaces. It is a coagulant for rubber slurries and a raw material for producing inorganic adhesives. In the coatings industry, it is used as a metal anti-rust paint.

[0003] During the extraction process of phosphoric acid, it is necessary to pay attention to the reaction effect of the internal solution and the influence of light on it. Existing devices usually completely shield it from light, and staff can only observe and judge the reaction of the solution from a very small opening, which is not intuitive and convenient. In addition, the function of the device is single and it is impossible to control the specific influence of experimental light on the raw materials. Utility Model Content

[0004] The purpose of the utility model is to provide an extraction tower for wet-process refined phosphoric acid, which can adjust different light intake amounts according to different extraction liquids to improve the extraction effect.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An extraction tower for wet-process refined phosphoric acid, comprising a tower body, a light-blocking member, and a drive assembly;

[0007] The light blocking member is sleeved on the outer periphery of the tower body and is rotatably connected to the tower body;

[0008] The outer periphery of the tower body is provided with a plurality of observation windows at intervals;

[0009] The light blocking member includes a plurality of light blocking plates arranged at intervals, and the light blocking member is used to block the observation window;

[0010] The driving assembly is used to drive the light blocking member to rotate.

[0011] In one embodiment, the drive assembly includes a first rotating ring, a second rotating ring, a ring gear, a first gear and a first motor;

[0012] The first swivel is sleeved on the upper part of the tower body and is rotatably connected to the tower body, the second swivel is sleeved on the lower part of the tower body and is rotatably connected to the tower body, the top of the light shield is fixedly connected to the first swivel, and the bottom of the light shield is fixedly connected to the second swivel;

[0013] The gear ring is sleeved and mounted on the second rotating ring, the first gear is meshed with the gear ring, the output shaft of the first motor is mounted on the shaft hole of the first gear, and the first motor is used to drive the first gear to rotate.

[0014] In one embodiment, the horizontal cross-section of the observation window is arc-shaped, the horizontal cross-section of the light-blocking plate is arc-shaped, and the arc length of the horizontal cross-section of the light-blocking plate is longer than the arc length of the horizontal cross-section of the observation window.

[0015] In one embodiment, the method for wet-process refined phosphoric acid further includes a blanking component;

[0016] The material discharge assembly includes a first material discharge hopper, an end cover and a cover plate;

[0017] The first discharge hopper is arranged on the top of the tower body, the end cover is arranged on the top of the first discharge hopper, the end cover is provided with a discharge port, and the cover plate is detachably arranged at the discharge port.

[0018] In one embodiment, the extraction column for wet-process refined phosphoric acid further comprises a stirring assembly;

[0019] The stirring assembly includes a rotating shaft, a stirring rod and a stirring motor;

[0020] One end of the rotating shaft is located inside the tower body, and the other end of the rotating shaft extends outside the first lower hopper. The upper end of the stirring rod is fixed on the rotating shaft, and the output shaft of the stirring motor is fixedly connected to the other end of the rotating shaft.

[0021] In one embodiment, the extraction tower for wet-process refined phosphoric acid further includes a second lower hopper;

[0022] The second lower hopper is arranged at the bottom of the tower body.

[0023] In one embodiment, the extraction tower for wet-process refined phosphoric acid further includes a feed pipe and a control valve;

[0024] The discharge pipe is arranged at the bottom of the second discharge hopper, and the control valve is arranged on the discharge pipe.

[0025] Compared with the prior art, the extraction tower for wet-process refined phosphoric acid according to the embodiment of the present invention has the following beneficial effects:

[0026] 1. For light-sensitive liquids to be extracted, adjust the amount of light entering the observation window; match the amount of light entering the observation window with the amount of light required by the liquid to be extracted to improve the extraction effect of the liquid to be extracted; BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the three-dimensional structure of an extraction tower for wet-process refined phosphoric acid provided by the present invention;

[0028] Figure 2 This is a schematic diagram of the three-dimensional structure of the extraction tower for wet-process refined phosphoric acid provided by the present invention, after removing the rotating assembly;

[0029] Figure 3 The utility model provides a schematic cross-sectional structure diagram of an extraction tower for wet-process refined phosphoric acid.

[0030] In the picture:

[0031] 10-tower body; 101-observation window; 102-extension part; 103-tooth part; 20-light blocking part; 201-light blocking plate; 30-driving assembly; 301-first rotating ring; 302-second rotating ring; 303 gear ring; 304-first gear; 305-first motor; 40-rotating assembly; 401-third rotating ring; 402-upper plate; 403-pressure plate; 404-rotating platform; 405-support column; 406-support leg; 407-second gear; 408-second motor; 50-discharging assembly; 501-first discharging hopper; 502-end cover; 5031-discharging port; 503-cover plate; 60-stirring assembly; 601-rotating shaft; 602-stirring rod; 603-stirring motor; 70-second discharging hopper; 80-discharging pipe; 90-control valve. DETAILED DESCRIPTION

[0032] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] In the description of this utility model, it should be clear that the embodiments described are only some of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] The terms used in the embodiments of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "an", "the" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

[0035] It should be understood that the term "and / or" as used herein is simply a term used to describe the existence of three possible relationships between related objects. For example, "A and / or B" can represent the existence of A alone, the existence of both A and B, and the existence of B alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0036] It should be understood that the terms “first”, “second”, etc. used in this application are only used for the purpose of distinguishing descriptions, and cannot be understood as indicating or implying relative importance, nor can they be understood as indicating or implying an order.

[0037] In the description of this application, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting this application.

[0038] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, a conflicting connection or an integrated connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0039] See Figure 1 and Figure 3As shown, the extraction tower for wet-process refined phosphoric acid described in the embodiment of the present application may include a tower body 10, a light-blocking member 20, and a drive assembly 30; the tower body 10 is cylindrical, and the light-blocking member 20 is sleeved on the outer periphery of the tower body 10 and is rotatably connected to the tower body 10; the tower body 10 is a double-layer structure, the inner layer is a transparent polymer material isolation layer, the outer layer is a steel skeleton that plays a supporting role, and the outer layer is provided with a plurality of observation windows 101 at intervals; the double-layer structure is adopted, the inner layer is a transparent polymer layer, and the outer layer is a steel skeleton support, which retains the strength properties of the extraction tower and realizes the observability of the extraction process, while providing the necessary conditions for adjusting the amount of light entering. The observation window 101 is made of a light-transmitting material, and the light-blocking member 20 can block the observation window 101 when it rotates, so as to facilitate the control of the light entering the observation window 101, thereby adjusting the amount of light transmitted at the observation window 101. The light blocking member 20 includes a plurality of light blocking plates 201 arranged at intervals. The light blocking member 20 is used to block the observation window 101 . The driving assembly 30 is used to drive the light blocking member 20 to rotate.

[0040] The driving assembly 30 drives the light blocking member 20 to rotate, thereby controlling the light entering the observation window 101 , thereby achieving the purpose of adjusting the amount of light entering the observation window 101 .

[0041] In one embodiment, if Figure 1 and Figure 3 As shown, the driving assembly 30 includes a first rotating ring 301, a second rotating ring 302, a ring gear 303, a first gear 304 and a first motor 305; the first rotating ring 301 is sleeved on the upper part of the tower body 10 and is rotatably connected to the tower body 10, the second rotating ring 302 is sleeved on the lower part of the tower body 10 and is rotatably connected to the tower body 10, the top of the light shielding plate 201 is fixedly connected to the first rotating ring 301 by welding or fasteners, and the bottom of the light shielding plate 201 is fixedly connected to the second rotating ring 302 by welding or fasteners; the ring gear 303 is sleeved and installed on the second rotating ring 302, the first gear 304 is engaged with the ring gear 303, the output shaft of the first motor 305 is installed at the shaft hole of the first gear 304, and the first motor 305 is used to drive the first gear 304 to rotate. The first motor 305 drives the first gear 304 to rotate, the first gear 304 drives the ring gear 303 to rotate, the ring gear 303 drives the second rotating ring 302 to rotate, and then drives the light baffle 201 to rotate, thereby realizing the rotation of the light baffle 201. The angle of rotation of the light baffle 201 can be controlled by controlling the number of revolutions of the first motor 305, thereby precisely controlling the area of ​​the observation window 101 blocked by the light baffle 201, thereby precisely adjusting the amount of light entering the observation window 101.

[0042] In one embodiment, if Figure 1 and Figure 2As shown, the horizontal cross-section of the observation window 101 is arc-shaped, and the horizontal cross-section of the light baffle 201 is arc-shaped. The arc length of the horizontal cross-section of the light baffle 201 is longer than the arc length of the horizontal cross-section of the observation window 101, so that the light baffle 201 can completely block the observation window 101, meeting the needs when the reaction inside the tower body 10 does not require light or requires a small amount of light to enter.

[0043] In one embodiment, if Figure 1 As shown, the extraction tower for wet-process refined phosphoric acid further includes a discharge assembly 50;

[0044] The discharge assembly includes a first discharge hopper 501, an end cover 502 and a cover plate 503; the first discharge hopper 501 is arranged at the top of the tower body 10, the end cover 502 is covered on the top of the first discharge hopper 501, a discharge port 5031 is opened on the end cover 502, and the cover plate 503 is detachably arranged at the discharge port 5031.

[0045] When feeding is required, the liquid to be extracted and the extractant are fed into the discharge port 5031 .

[0046] In one embodiment, if Figure 1 and Figure 3 As shown, the extraction tower for wet-process refined phosphoric acid further includes a stirring assembly 60; the stirring assembly 60 includes a rotating shaft 601, a stirring rod 602, and a stirring motor 603; one end of the rotating shaft 601 is located inside the tower body 10, and the other end of the rotating shaft 601 extends outside the first lower hopper 501. The upper end of the stirring rod 602 is fixed to the rotating shaft 601, and the output shaft of the stirring motor 603 is fixedly connected to the other end of the rotating shaft 601. The stirring motor 603 drives the stirring rod 602 to rotate through the rotating shaft 601, stirring the extract inside the tower body 10, thereby improving the extraction efficiency and adequacy of the extract.

[0047] In one embodiment, if Figure 1 As shown, the extraction tower for wet-process refined phosphoric acid further includes a second lower hopper 70 disposed at the bottom of the tower body 10. The extraction tower for wet-process refined phosphoric acid further includes a lowering pipe 80 disposed at the bottom of the second lower hopper 70 and a control valve 90 disposed on the lowering pipe 80.

[0048] After the extraction is completed, the control valve 90 is opened, and the heavy phase in the extracted extract is discharged from the second discharge hopper 70 through the discharge pipe 80.

[0049] Working process

[0050] 1) Adjust the amount of light

[0051] The amount of light entering the observation window 101 is adjusted according to the properties of the liquid to be extracted; the first motor 305 drives the first gear 304 to rotate, the first gear 304 drives the ring gear 303 to rotate, the ring gear 303 drives the second rotating ring 302 to rotate, and then drives the light shield 201 to rotate, thereby realizing the rotation of the light shield 201. By controlling the number of revolutions of the first motor 305, the angle of rotation of the light shield 201 is controlled, and the area of ​​the observation window 101 blocked by the light shield 201 is precisely controlled, thereby adjusting the light shield 201 to a desired position so that the amount of light entering the observation window 101 meets the requirements of the properties of the liquid to be extracted;

[0052] 2) Feeding

[0053] Add the liquid to be extracted and the extractant into the discharge port 5031;

[0054] 3) Stirring extraction

[0055] The stirring motor 603 is started, and the stirring motor 603 drives the stirring rod 602 to rotate via the rotating shaft 601 to stir the extract inside the tower body 10;

[0056] 4) Extract collection

[0057] After the extraction is completed, the control valve 90 is opened, and the heavy phase in the extracted extract is discharged from the second discharge hopper 70 through the discharge pipe 80. After the heavy phase is discharged, the light phase is discharged.

[0058] Beneficial effects:

[0059] For light-sensitive liquid to be extracted, the amount of light entering the observation window 101 is adjusted so that the amount of light entering the observation window 101 matches the amount of light required by the liquid to be extracted, thereby improving the extraction effect of the liquid to be extracted.

[0060] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. An extraction tower for wet-process refined phosphoric acid, characterized in that: It comprises a tower body (10), a light blocking member (20) and a driving assembly (30); The light blocking member (20) is sleeved on the outer periphery of the tower body (10) and is rotatably connected to the tower body (10); The outer periphery of the tower body (10) is provided with a plurality of observation windows (101) at intervals; The light blocking member (20) comprises a plurality of light blocking plates (201) arranged at intervals, and the light blocking member (20) is used to block the observation window (101); The driving assembly (30) is used to drive the light blocking member (20) to rotate.

2. The extraction tower for wet-process refined phosphoric acid according to claim 1, characterized in that: The driving assembly (30) includes a first rotating ring (301), a second rotating ring (302), a gear ring (303), a first gear (304) and a first motor (305); The first rotating ring (301) is sleeved on the upper part of the tower body (10) and is rotatably connected to the tower body (10); the second rotating ring (302) is sleeved on the lower part of the tower body (10) and is rotatably connected to the tower body (10); the top of the light shielding plate (201) is fixedly connected to the first rotating ring (301); and the bottom of the light shielding plate (201) is fixedly connected to the second rotating ring (302); The gear ring (303) is sleeved and mounted on the second rotating ring (302), the first gear (304) is meshed with the gear ring (303), the output shaft of the first motor (305) is mounted on the shaft hole of the first gear (304), and the first motor (305) is used to drive the first gear (304) to rotate.

3. The extraction tower for wet-process refined phosphoric acid according to claim 1, characterized in that: The horizontal cross-section of the observation window (101) is arc-shaped, the horizontal cross-section of the light blocking plate (201) is arc-shaped, and the arc length of the horizontal cross-section of the light blocking plate (201) is longer than the arc length of the horizontal cross-section of the observation window (101).

4. The extraction tower for wet-process refined phosphoric acid according to claim 1, characterized in that: Also included is a blanking assembly (50); The material discharge assembly (50) comprises a first material discharge hopper (501), an end cover (502) and a cover plate (503); The first discharge hopper (501) is arranged on the top of the tower body (10), the end cover (502) is covered on the top of the first discharge hopper (501), a discharge port (5031) is provided on the end cover (502), and the cover plate (503) is detachably arranged at the discharge port (5031).

5. The extraction tower for wet-process refined phosphoric acid according to claim 4, characterized in that: Also included is a stirring assembly (60); The stirring assembly (60) includes a rotating shaft (601), a stirring rod (602) and a stirring motor (603); One end of the rotating shaft (601) is located inside the tower body (10), and the other end of the rotating shaft (601) extends outside the first lower hopper (501). The upper end of the stirring rod (602) is fixed on the rotating shaft (601), and the output shaft of the stirring motor (603) is fixedly connected to the other end of the rotating shaft (601).

6. The extraction tower for wet-process refined phosphoric acid according to claim 1, characterized in that: Also includes a second lower hopper (70); The second lower hopper (70) is arranged at the bottom of the tower body (10).

7. The extraction tower for wet-process refined phosphoric acid according to claim 6, characterized in that: It also includes a feed pipe (80) and a control valve (90); The discharge pipe (80) is arranged at the bottom of the second discharge hopper (70), and the control valve (90) is arranged on the discharge pipe (80).

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