Zinc sulfate solution purification device

Abstract

The utility model provides a zinc sulfate solution purification device, and solves the problems that the purification device needs to stop operation after reaction is completed, discharge and treatment of a solution are carried out, and then repeated operation is carried out, so that the operation is complicated, and the purification efficiency is low. According to the utility model, unpurified zinc sulfate solution and zinc powder are continuously added into the material injection pipe, and the electromagnetic valve is opened, so that the injection flow of the unpurified zinc sulfate solution and the injection flow of the zinc powder are the same as the liquid outlet flow of the purified zinc sulfate solution, and the aim of continuously purifying the zinc sulfate solution is fulfilled; meanwhile, the zinc sulfate solution entering the bottom of the rotating cylinder from the material injection pipe can move along a one-way channel formed by the outer side wall of the material injection pipe and the inner side wall of the rotating cylinder as well as a one-way channel formed by the outer side wall of the rotating cylinder and the inner side wall of the purifying tank, so that more reaction time is provided for the zinc sulfate solution in a limited space; and the zinc powder and impurity elements in the zinc sulfate solution can be subjected to a reduction reaction more sufficiently.

Description

Technical Field

[0001] The utility model relates to the field of chemical production, in particular to a zinc sulfate solution purification device. Background Art

[0002] In the process of wet zinc smelting, since zinc concentrate contains impurities, the main impurities in zinc sulfate solution are Cu, Co, Cd, As, Ge and other elements. The above impurities need to be purified and removed. The purification and impurity removal process is relatively complicated. The above impurity elements generally need to be removed by reaction.

[0003] In the prior art, zinc powder is often added to the zinc sulfate solution as a reducing agent, and the zinc sulfate solution reacts with other impurity elements in the zinc sulfate solution to form a solid, which is then filtered out. For example, the utility model patent with patent number ZL202222749544.0 discloses a zinc sulfate solution purification device, including a purification tank: the purification tank includes a tank body and a tank cover; the tank cover is installed at the upper end of the tank body, and a motor is installed at the lower end of the tank body, and the motor output shaft is fixedly connected with a rotating rod. The working principle of the utility model is: zinc sulfate solution is added from the liquid adding funnel, the liquid separation block divides the zinc sulfate liquid into two streams flowing to the inner wall of the hollow barrel, and the rotating rod is driven by electricity to rotate, so that the hollow barrel rotates alone, so that the zinc sulfate liquid is centrifuged and thrown to the mesh plate to react with the zinc powder. When there is too much solution, the stirring rod on the outer wall of the hollow barrel rotates with the hollow barrel, stirring the zinc sulfate solution, and adding zinc powder through the feeding pipe, accelerating the purification efficiency, ensuring the purification effect, and achieving the effect of uniform purification. The impurities replaced are filtered out through the filter plate, and the solenoid valve is opened to be discharged from the discharge hopper. The utility model adds zinc powder to the zinc sulfate solution, waits for the zinc powder to react with the zinc sulfate completely, and then discharges the purified zinc sulfate solution. However, the purification device needs to stop operating after the reaction is completed, discharge and treat the solution, and then repeat the operation, which is complicated and has low purification efficiency. Utility Model Content

[0004] In order to solve the problem in the background technology that the purification device needs to stop operating after the reaction is completed, discharge and treat the solution, and then repeat the operation, which is complicated to operate and has low purification efficiency, the utility model proposes a zinc sulfate solution purification device.

[0005] The technical solution of the utility model is: a zinc sulfate solution purification device, comprising a purification tank with an upper opening structure, a top cover is detachably fixed on the top of the purification tank by bolts, an exhaust pipe is fixedly connected and communicated with the top cover, and an air suction fan is provided at one end of the exhaust pipe away from the top cover;

[0006] The purification tank is provided with a driving mechanism, which is provided with a rotating drum with an upper opening structure. The rotating drum is located in the purification tank, and the driving mechanism is used to drive the rotating drum to rotate. A plurality of stirring blades arranged at intervals up and down are fixedly provided on the inner and outer circumferences of the rotating drum.

[0007] A through hole is opened in the middle of the top cover, and a filling pipe is fixedly arranged at the through hole. The bottom end of the filling pipe passes through the top cover and extends downward into the purification tank, and the bottom of the filling pipe is located in the rotating cylinder. There is a gap between the bottom end of the filling pipe and the bottom of the rotating cylinder, a gap between the top end of the rotating cylinder and the top cover, and a gap between the outer wall of the rotating cylinder and the inner wall of the purification tank.

[0008] A filter component is provided at the inner bottom of the purification tank, and the filter component is located below the rotating cylinder;

[0009] The bottom of the purification tank is fixedly connected and communicated with a liquid outlet pipe, and a solenoid valve is fixedly arranged on the liquid outlet pipe.

[0010] Preferably, the driving mechanism comprises a servo motor fixedly arranged at the bottom of the purification tank, the output shaft of the servo motor passes through the purification tank and is fixedly provided with a rotating shaft, and the bottom end of the rotating cylinder is fixedly arranged at the top end of the rotating shaft.

[0011] Preferably, an acid-resistant sealing sleeve is fixedly provided on the bottom of the inner wall of the purification tank, and the acid-resistant sealing sleeve is rotatably sleeved on the rotating shaft.

[0012] Preferably, the filter component includes two filter plates arranged in the purification tank, the filter plate is an arc-shaped plate structure with an upper opening, one end of the filter plate passes through the purification tank and is fixedly provided with an arc-shaped baffle, the curvature of the arc-shaped baffle is the same as the curvature of the purification tank, and both ends of the arc-shaped baffle are fixedly provided with a second fixing member;

[0013] Four first fixing members are fixed on the purification tank, and the four first fixing members correspond to the four second fixing members one by one in front and back. The first fixing members and the second fixing members are fixed together by bolts, and the arc-shaped baffle is used to abut against the outer peripheral surface of the purification tank through the first fixing members and the second fixing members.

[0014] Preferably, a fixing plate is fixed to the inner wall of the purification tank, the fixing plate is located between the two filter plates, and the fixing plate is sleeved on the acid-resistant sealing sleeve. Grooves are provided on both sides of the fixing plate, and one end of the filter plate away from the arc baffle is arranged in the groove.

[0015] Preferably, an acid-resistant sealing gasket is fixedly provided on the inner side of the arc-shaped baffle plate, the acid-resistant sealing gasket is sleeved on the filter plate, and the acid-resistant sealing gasket is located between the arc-shaped baffle plate and the purification tank.

[0016] Preferably, a flaring tube is fixedly provided at the top end of the injection tube.

[0017] Preferably, a liquid level meter is fixedly provided on the purification tank.

[0018] The utility model has the advantages that: the utility model continuously adds unpurified zinc sulfate solution and zinc powder into the injection pipe and opens the solenoid valve at the same time, so that the injection flow rate of the unpurified zinc sulfate solution and zinc powder is the same as the outlet flow rate of the purified zinc sulfate solution, thereby achieving the purpose of continuously purifying the zinc sulfate solution; at the same time, the zinc sulfate solution entering the bottom of the rotating drum from the injection pipe will move along the one-way channel formed by the outer wall of the injection pipe and the inner wall of the rotating drum, and the outer wall of the rotating drum and the inner wall of the purification tank, thereby providing more reaction time for the zinc sulfate solution in a limited space, so that the zinc powder can more fully react with the impurity elements in the zinc sulfate solution; and by arranging a driving mechanism to drive the rotating drum and the stirring blades to rotate, the mixing of the zinc powder and the zinc sulfate solution can be promoted, the reaction rate can be accelerated, and the reduced solid impurity elements can be prevented from being precipitated in the rotating drum.

[0019] By adjusting the valve size of the solenoid valve and changing the speed of injecting material into the injection pipe, it is convenient to adjust the speed of the zinc sulfate solution moving along the one-way channel according to the reduction reaction speed of the zinc sulfate solution and zinc powder, so that the zinc sulfate solution can get sufficient reaction time to avoid insufficient reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a front cross-sectional view of the overall structure of the utility model;

[0023] Figure 3 This is a structural cross-sectional view of the filter plate of the utility model.

[0024] In the figure: 1. purification tank; 2. top cover; 3. support leg; 4. servo motor; 5. rotating shaft; 6. sealing sleeve; 7. rotating cylinder; 8. stirring blade; 9. injection pipe; 10. flaring pipe; 11. fixing plate; 12. filter plate; 13. arc baffle; 14. first fixing part; 15. second fixing part; 16. acid-resistant sealing gasket; 17. exhaust pipe; 18. liquid outlet pipe; 19. solenoid valve; 20. liquid level meter. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1: A zinc sulfate solution purification device, such as Figure 1-3 As shown, the purification tank 1 includes an upper opening structure, on which a liquid level gauge 20 is fixedly provided, and the liquid level gauge 20 is convenient for observing the liquid level of the zinc sulfate solution in the purification tank 1; a top cover 2 is detachably fixedly provided on the top of the purification tank 1 by bolts, and an exhaust pipe 17 is fixedly connected and communicated with the top cover 2, and an air suction fan is provided at one end of the exhaust pipe 17 away from the top cover 2, and the air suction fan is used to absorb the gas generated when the zinc powder and the impurity elements in the zinc sulfate solution undergo a reduction reaction through the exhaust pipe 17 to avoid damage to the health of the staff; a through hole that is transparent from top to bottom is opened in the middle of the top cover 2, and a feeding pipe 9 is fixedly provided at the through hole, and a flaring pipe 10 is fixedly provided at the top end of the feeding pipe 9 to facilitate the addition of the zinc sulfate solution and the zinc powder into the feeding pipe 9, and the bottom end of the feeding pipe 9 passes through the top cover 2 and extends downward into the purification tank 1.

[0027] A driving mechanism is provided on the purification tank 1. Specifically, the driving mechanism includes a servo motor 4 fixedly arranged at the bottom of the purification tank 1. The output shaft of the servo motor 4 passes through the purification tank 1 and is fixedly provided with a rotating shaft 5. An acid-resistant sealing sleeve 6 is sleeved on the rotating shaft 5. The acid-resistant sealing sleeve 6 is fixedly arranged on the bottom of the inner wall of the purification tank 1. A rotating cylinder 7 with an upper opening structure is fixedly arranged at the top end of the rotating shaft 5. A plurality of stirring blades 8 spaced apart up and down are fixedly arranged on the inner and outer circumferential surfaces of the rotating cylinder 7. The bottom of the injection pipe 9 is located in the rotating cylinder 7.

[0028] A gap is left between the bottom end of the injection pipe 9 and the bottom of the rotating cylinder 7, a gap is left between the top end of the rotating cylinder 7 and the top cover 2, and a gap is left between the outer wall of the rotating cylinder 7 and the inner wall of the purification tank 1. A one-way channel for the zinc sulfate solution to pass through is formed between the outer wall of the injection pipe 9 and the inner wall of the rotating cylinder 7, and between the outer wall of the rotating cylinder 7 and the inner wall of the purification tank 1, so that the zinc sulfate solution entering the purification tank 1 through the injection pipe 9 can only move along the one-way channel. In a limited space, more reaction time is provided for the zinc sulfate solution, so that the zinc powder can more fully react with the impurity elements in the zinc sulfate solution. By setting a driving mechanism to drive the rotating cylinder 7 and the stirring blade 8 to rotate, the mixing of the zinc powder and the zinc sulfate solution can be promoted, the reaction rate can be accelerated, and the solid impurity elements after reduction are prevented from being precipitated in the rotating cylinder 7.

[0029] A filtering component is provided at the inner bottom of the purification tank 1. Specifically, the filtering component includes two filter plates 12 arranged in the purification tank 1. The filter plate 12 is an arc-shaped plate structure with an upper opening, which can intercept the filtered solid impurity elements on the surface of the filter plate 12. One end of the filter plate 12 passes through the purification tank 1 and is fixed with an arc-shaped baffle 13. The curvature of the arc-shaped baffle 13 is the same as that of the purification tank 1. Both ends of the arc-shaped baffle 13 are fixed with second fixing members 15; four first fixing members 14 are fixed on the purification tank 1, and the four first fixing members 14 correspond to the four second fixing members 15 front and back one by one. The first fixing members 14 and the second fixing members 15 are fixed together by bolts, and the arc-shaped baffle 13 is used to abut against the outer peripheral surface of the purification tank 1 through the first fixing member 14 and the second fixing member 15.

[0030] A fixing plate 11 is fixed to the inner wall of the purification tank 1. The fixing plate 11 is located between two filter plates 12, and the fixing plate 11 is sleeved on the acid-resistant sealing sleeve 6. Grooves are provided on both sides of the fixing plate 11. One end of the filter plate 12 away from the arc-shaped baffle plate 13 is arranged in the groove, so that the end of the filter plate 12 away from the arc-shaped baffle plate 13 can be fixed.

[0031] An acid-resistant sealing gasket 16 is fixedly provided on the inner side of the arc baffle 13 , and the acid-resistant sealing gasket 16 is sleeved on the filter plate 12 . The acid-resistant sealing gasket 16 is located between the arc baffle 13 and the purification tank 1 , and the acid-resistant sealing gasket 16 can enhance the sealing performance between the arc baffle 13 and the purification tank 1 .

[0032] The bottom of the purification tank 1 is fixedly connected and communicated with a liquid outlet pipe 18, and a solenoid valve 19 is fixedly provided on the liquid outlet pipe 18; by providing the solenoid valve 19, it is convenient to adjust the valve size of the solenoid valve 19 according to the reduction reaction speed of the zinc sulfate solution and the zinc powder, and change the speed of injecting material into the injection pipe 9, thereby changing the speed at which the zinc sulfate solution moves along the one-way channel, so that the zinc sulfate solution can get sufficient reaction time.

[0033] Working principle: When in use, add unpurified zinc sulfate solution and zinc powder into the injection pipe 9, adjust the valve size of the solenoid valve 19, and then start the servo motor 4. The output shaft of the servo motor 4 drives the rotating drum 7 and the stirring blade 8 to rotate through the rotating shaft 5, mix and accelerate the reduction reaction of the zinc sulfate solution and the zinc powder; at the same time, the zinc sulfate solution entering the bottom of the rotating drum 7 from the injection pipe 9 will move along the one-way channel formed by the outer wall of the injection pipe 9 and the inner wall of the rotating drum 7, and the outer wall of the rotating drum 7 and the inner wall of the purification tank 1, thereby increasing the reduction reaction time between the zinc sulfate solution and the zinc powder. When the reduced zinc sulfate solution passes through the filter plate 12, the reduced solid impurities are intercepted, and then the purified zinc sulfate solution is discharged through the liquid outlet pipe 18. By observing the height of the liquid level meter 20, when the liquid level in the purification tank 1 continues to increase, the filter plate 12 is blocked and needs to be replaced, and the addition of zinc sulfate solution and zinc powder is stopped. When the zinc sulfate solution in the purification tank 1 flows to the bottom of the filter plate 12, the filter plate 12 is replaced.

[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A zinc sulfate solution purification device, characterized in that: A purification tank (1) having an upper opening structure is provided, wherein a top cover (2) is detachably fixed to the top of the purification tank (1) by means of bolts, an exhaust pipe (17) is fixedly connected to and communicated with the top cover (2), and an air suction fan is provided at one end of the exhaust pipe (17) away from the top cover (2); A driving mechanism is provided on the purification tank (1), and a rotating cylinder (7) with an upper opening structure is provided on the driving mechanism. The rotating cylinder (7) is located in the purification tank (1), and the driving mechanism is used to drive the rotating cylinder (7) to rotate. A plurality of stirring blades (8) arranged at intervals in upper and lower directions are fixedly provided on the inner and outer peripheral surfaces of the rotating cylinder (7); A through hole is provided in the middle of the top cover (2), and a material injection pipe (9) is fixedly provided at the through hole. The bottom end of the material injection pipe (9) passes through the top cover (2) and extends downward into the purification tank (1), and the bottom of the material injection pipe (9) is located in the rotating cylinder (7). A gap is left between the bottom end of the material injection pipe (9) and the bottom of the rotating cylinder (7), a gap is left between the top end of the rotating cylinder (7) and the top cover (2), and a gap is left between the outer wall of the rotating cylinder (7) and the inner wall of the purification tank (1); A filter component is provided at the inner bottom of the purification tank (1), and the filter component is located below the rotating cylinder (7); The bottom of the purification tank (1) is fixedly connected to and communicated with a liquid outlet pipe (18), and a solenoid valve (19) is fixedly provided on the liquid outlet pipe (18).

2. A zinc sulfate solution purification device according to claim 1, characterized in that: The driving mechanism comprises a servo motor (4) fixedly arranged at the bottom of the purification tank (1); an output shaft of the servo motor (4) passes through the purification tank (1) and is fixedly provided with a rotating shaft (5); and a bottom end of the rotating cylinder (7) is fixedly arranged at a top end of the rotating shaft (5).

3. A zinc sulfate solution purification device according to claim 2, characterized in that: An acid-resistant sealing sleeve (6) is fixedly provided on the bottom of the inner wall of the purification tank (1), and the acid-resistant sealing sleeve (6) is rotatably sleeved on the rotating shaft (5).

4. A zinc sulfate solution purification device according to claim 1, characterized in that: The filter component comprises two filter plates (12) arranged in the purification tank (1), the filter plates (12) being an arc-shaped plate structure with an upper opening, one end of the filter plate (12) passing through the purification tank (1) and being fixedly provided with an arc-shaped baffle plate (13), the arc of the arc-shaped baffle plate (13) being the same as the arc of the purification tank (1), and both ends of the arc-shaped baffle plate (13) being fixedly provided with a second fixing member (15); Four first fixing members (14) are fixedly provided on the purification tank (1), and the four first fixing members (14) correspond to the four second fixing members (15) in a front-to-rear manner. The first fixing members (14) and the second fixing members (15) are fixed together by bolts, and the arc-shaped baffle plate (13) is used to abut against the outer peripheral surface of the purification tank (1) through the first fixing members (14) and the second fixing members (15).

5. A zinc sulfate solution purification device according to claim 4, characterized in that: A fixing plate (11) is fixedly provided on the inner wall of the purification tank (1). The fixing plate (11) is located between two filter plates (12). The fixing plate (11) is sleeved on an acid-resistant sealing sleeve (6). Grooves are provided on both sides of the fixing plate (11). One end of the filter plate (12) away from the arc-shaped baffle plate (13) is arranged in the groove.

6. A zinc sulfate solution purification device according to claim 4, characterized in that: An acid-resistant sealing gasket (16) is fixedly provided on the inner side of the arc-shaped baffle (13). The acid-resistant sealing gasket (16) is sleeved on the filter plate (12). The acid-resistant sealing gasket (16) is located between the arc-shaped baffle (13) and the purification tank (1).

7. A zinc sulfate solution purification device according to claim 1, characterized in that: A flaring tube (10) is fixedly provided at the top end of the injection tube (9).

8. A zinc sulfate solution purification device according to claim 1, characterized in that: A liquid level meter (20) is fixedly provided on the purification tank (1).

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