Crystallization treatment device for potassium chloride

Abstract

The utility model discloses a potassium chloride crystallization treatment device, which relates to the field of potassium chloride crystallization re-melting and impurity removal, and comprises a sedimentation tank, supporting legs are formed at four corners of the bottom end of the sedimentation tank, and two fixed inclined planes inclined outwards and downwards are symmetrically formed at the bottom end of the inner wall of the sedimentation tank. Four connecting frames extending towards the outer side of the end part of the sedimentation tank are mounted on two sides of the sedimentation tank, a discharging mechanism is mounted on the four connecting frames, a lifting mechanism extending to the lower part of the sedimentation tank is mounted at one end of the sedimentation tank, a porous intercepting net is slidably connected to the inner wall of the sedimentation tank, and a discharging mechanism is mounted on the porous intercepting net. And the bottom end of the porous intercepting net is attached to the fixed inclined surface. According to the utility model, through the arrangement of the porous intercepting net with the guide inclined surface at the top, the lifting mechanism and the clearing mechanism, the sediment and the potassium chloride solution can be separated immediately after the reaction is finished, and the separation can be realized without spending more time, so that the working efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of potassium chloride crystallization remelting and impurity removal, in particular to a potassium chloride crystallization treatment device. BACKGROUND

[0002] Common impurities in potassium chloride crystals include sodium chloride, magnesium sulfate, calcium chloride, etc. When reprocessing and purification are carried out, the potassium chloride crystals containing impurities need to be melted, and then chemical reagents are added for chemical precipitation. For example, when the potassium chloride contains sulfate ions, barium chloride is added to remove them. When the potassium chloride contains calcium ions and magnesium ions, potassium carbonate solution is added to remove calcium ions, and potassium hydroxide solution is added to remove magnesium ions. After the impurities are removed, the potassium chloride solution is crystallized again to complete the treatment.

[0003] In the prior art, after the potassium chloride is purified, solid-liquid separation is needed, that is, the precipitate is separated from the potassium chloride solution. Generally, the separation is carried out by static precipitation, filtration or centrifugation. The above methods are not direct enough, and it takes a certain amount of time to separate the purified potassium chloride solution. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problems in the background art, and provides a potassium chloride crystallization treatment device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a potassium chloride crystallization treatment device, comprising a sedimentation tank with legs formed at the bottom corners, two outwardly downward inclined fixed inclined surfaces symmetrically formed at the bottom of the inner wall of the sedimentation tank, four connecting frames extending outward from the end of the sedimentation tank installed on both sides of the sedimentation tank, a discharge mechanism installed on the four connecting frames, a lifting mechanism extending below the sedimentation tank installed at one end of the sedimentation tank, a porous intercepting net slidingly connected to the inner wall of the sedimentation tank, the bottom end of the porous intercepting net being fitted with the fixed inclined surface, the top of the porous intercepting net being integrally formed with upward protruding blocking plates at both ends, the output end of the lifting mechanism penetrating the bottom plate of the sedimentation tank and being connected to the bottom end of the porous intercepting net, and the output end of the lifting mechanism being slidingly connected to the bottom plate of the sedimentation tank.

[0006] As a further scheme of the utility model: the lifting mechanism includes the No. 2 forward and reverse motor installed at one end of the sedimentation tank through the support, the output end of the No. 2 forward and reverse motor is connected with the lifting screw rod, the lifting screw rod is rotatably connected with the support, the outer thread of the lifting screw rod is connected with the lifting plate extending to the lower side of the sedimentation tank, the top of the lifting plate is welded with the upward protruding lifting rod on both sides, the lifting rod penetrates the bottom plate of the sedimentation tank and is fixedly connected with the bottom end of the porous intercepting net, and the sealing element is arranged at the position where the lifting rod and the bottom plate of the sedimentation tank are slidably connected.

[0007] As a further scheme of the utility model: the discharge mechanism includes the bidirectional screw rod rotatably connected between the two connecting frames distributed along the length direction of the sedimentation tank and the guide rod fixedly connected between the other two connecting frames, the top vertical plate of one connecting frame is provided with the No. 1 forward and reverse motor, and the output end of the No. 1 forward and reverse motor is fixedly connected with one end of the bidirectional screw rod.

[0008] As a further scheme of the utility model: the discharge mechanism further includes the two moving ears slidably connected with the outer wall of the guide rod and the two threaded connecting ears threadedly connected with the outer wall of the bidirectional screw rod, the bottom end of the threaded connecting ear and the moving ear are integrally formed with the connecting rod, the side of the two connecting rods away from each other is integrally formed with the outward protruding sliding ear, the inner wall of the sliding ear is slidably connected with the sliding rod, the bottom end of the sliding rod is fixedly provided with the fixed ear, and the inner side of the fixed ear is integrally formed with the downward protruding cleaning plate.

[0009] As a further scheme of the utility model: the spring is arranged between the bottom end of the sliding ear and the top end of the fixed ear, the spring is sleeved on the outer wall of the sliding rod, and the top end of the sliding rod is formed with the anti-falling part above the sliding ear.

[0010] As a further scheme of the utility model: the top end of the porous intercepting net is integrally formed with the outward downward inclined guide slope, and the bottom end of the cleaning plate is formed with the abutting slope matching the guide slope.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、Through the setting of the porous intercepting net with the guide slope on the top, the lifting mechanism and the cleaning mechanism, the sediment and the potassium chloride solution can be separated immediately after the reaction is completed, and the separation can be realized without spending much time, so that the work efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The utility model discloses a structure schematic diagram;

[0014] Figure 2 It is the internal structure schematic view of the utility model;

[0015] Figure 3 It is the installation schematic view of the porous intercepting net of the utility model;

[0016] Figure 4 It is the Figure 2 It is the local enlarged view of A place in the middle.

[0017] In the drawing: 1, sedimentation tank;2, connecting frame;3, No. 1 forward and reverse motor;4, bidirectional screw;5, guide rod;6, threaded connection ear;7, moving ear;8, No. 2 forward and reverse motor;9, lifting screw;10, lifting plate;11, lifting rod;12, porous intercepting net;13, baffle;14, fixed slope;15, sliding ear;16, sliding rod;17, fixed ear;18, cleaning plate;19, spring;20, connecting rod. Specific implementation

[0018] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0019] Please refer to Figures 1-4 In the embodiments of the utility model, a potassium chloride crystallization treatment device includes a sedimentation tank 1 shaped with support legs at the bottom four corners, two outward and downward inclined fixed slopes 14 are symmetrically formed at the bottom of the inner wall of the sedimentation tank 1, four connecting frames 2 extending to the outside of the end part of the sedimentation tank 1 are installed on both sides of the sedimentation tank 1, a discharge mechanism is installed on the four connecting frames 2, a lifting mechanism extending to the lower side of the sedimentation tank 1 is installed at one end of the sedimentation tank 1, a porous intercepting net 12 is slidingly connected to the inner wall of the sedimentation tank 1, the bottom end of the porous intercepting net 12 is attached to the fixed slope 14, the top two ends of the porous intercepting net 12 are integrally formed with upward protruding baffles 13, the output end of the lifting mechanism penetrates the bottom plate of the sedimentation tank 1 and is connected to the bottom end of the porous intercepting net 12, and the output end of the lifting mechanism is slidingly connected to the bottom plate of the sedimentation tank 1.

[0020] In this embodiment: first, the potassium chloride crystal containing impurities is added to the sedimentation tank 1, then water is introduced by the water pump to melt the potassium chloride solution, and after the potassium chloride solution is completely melted, a reaction reagent is added to the sedimentation tank 1 according to the impurities contained in the potassium chloride, such as barium chloride solution, to form barium sulfate precipitate when the potassium chloride contains sulfate ions;

[0021] After the reaction is completed, the lifting mechanism is started, the lifting mechanism drives the porous interception net 12 to move upwards, the upward moving porous interception net 12 drives the precipitate to move upwards synchronously, until the low point edges of both sides of the porous interception net 12 are flush with the top end of the sedimentation tank 1, in the process of upward movement of the porous interception net 12, the porous interception net 12 is in contact with the bottom end of the discharge mechanism, the upper and lower sliding parts of the pressure discharge mechanism move upwards, until the porous interception net 12 stops moving;

[0022] Then the cleaning mechanism is started, which can clean the precipitate on the top of the porous interception net 12, and the impurity-removed potassium chloride solution can be obtained, and the crystallization can be carried out again to obtain potassium chloride crystals with higher purity.

[0023] Please refer to Figure 1 , Figure 2 and Figure 3 , the lifting mechanism includes a No. 2 forward and reverse motor 8 mounted on one end of the sedimentation tank 1 through a support, the output end of the No. 2 forward and reverse motor 8 is connected with a lifting screw 9, the lifting screw 9 is rotatably connected with the support, the outer thread of the lifting screw 9 is connected with a lifting plate 10 extending to the lower side of the sedimentation tank 1, the top of both sides of the lifting plate 10 is welded with an upward protruding lifting rod 11, the lifting rod 11 penetrates the bottom plate of the sedimentation tank 1 and is fixedly connected with the bottom end of the porous interception net 12, and a sealing element is arranged at the position where the lifting rod 11 is slidingly connected with the bottom plate of the sedimentation tank 1.

[0024] In this embodiment: after the reaction is completed, the No. 2 forward and reverse motor 8 is started, the No. 2 forward and reverse motor 8 drives the lifting screw 9 to rotate, the rotating lifting screw 9 drives the lifting plate 10 to move upwards, the lifting plate 10 drives the lifting rod 11 to move upwards, the upward moving lifting rod 11 drives the porous interception net 12 to move upwards, until the top of the lifting plate 10 is in contact with the bottom of the bottom plate of the sedimentation tank 1, at this time, it cannot move upwards any more, at this time, the low point edges of both sides of the porous interception net 12 are flush with the top of the sedimentation tank 1, then the discharge mechanism is started, and the precipitate on the top of the porous interception net 12 is discharged outward.

[0025] Please refer to Figure 1 , Figure 2 and Figure 4The discharge mechanism includes a bidirectional screw 4 rotatably connected between two connecting frames 2 distributed along the length of the sedimentation tank 1, and a guide rod 5 fixedly connected between two other connecting frames 2. A first-reverse motor 3 is installed on the top vertical plate of one connecting frame 2. The output end of the first-reverse motor 3 is fixedly connected to one end of the bidirectional screw 4. The discharge mechanism also includes two movable ears 7 slidably connected to the outer wall of the guide rod 5, and two threaded connecting ears 6 threadedly connected to the outer wall of the bidirectional screw 4. The bottom ends of the threaded connecting ears 6 and the movable ears 7 are connected to each other. The device has an integrally formed connecting rod 20. On the sides of the two connecting rods 20 that are far apart from each other, there is an integrally formed outwardly protruding sliding ear 15. The inner wall of the sliding ear 15 is slidably connected to a sliding rod 16. The bottom end of the sliding rod 16 is fixedly installed with a fixing ear 17. The inner side of the fixing ear 17 has an integrally formed downwardly protruding clearing plate 18. A spring 19 is abutted between the bottom end of the sliding ear 15 and the top end of the fixing ear 17. The spring 19 is sleeved on the outer wall of the sliding rod 16, and the top end of the sliding rod 16 is located above the sliding ear 15 and has an anti-detachment part formed.

[0026] In this embodiment: When the porous interceptor 12 moves upward, when the porous interceptor 12 comes into contact with the cleaning plate 18, the cleaning plate 18 pushes the sliding rod 16 upward through the fixed ear 17. At this time, the spring 19 is compressed. After the porous interceptor 12 moves to the highest position, the first forward and reverse motor 3 is started. The first forward and reverse motor 3 drives the bidirectional screw 4 to rotate. When the bidirectional screw 4 rotates, the two threaded connecting ears 6 move in opposite directions. The two threaded connecting ears 6 that move in opposite directions drive the sliding ear 15 to move through the connecting rod 20. The sliding ear 15 drives the two cleaning plates 18 to move in opposite directions through the sliding rod 16 and the fixed ear 17. During the movement of the cleaning plate 18, the spring 19 gradually returns to its original position, so that the bottom end of the cleaning plate 18 can always be in contact with the top of the porous interceptor 12, thus sweeping away the sediment on the top of the porous interceptor 12.

[0027] Please refer to this carefully. Figure 3 and Figure 4 The top of the porous interception net 12 is integrally formed with an outward and downward inclined guide slope, and the bottom of the clearing plate 18 is formed with a fitting slope that matches the guide slope.

[0028] In this embodiment, the design of the guide slope and the fitting slope facilitates the outward movement of the sediment.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for potassium chloride crystallization treatment comprising a sedimentation tank (1) shaped with legs at the corners of the bottom end, characterized in that, The inner wall bottom end of the sedimentation tank (1) is symmetrically formed with two outwardly downward inclined fixed inclined surfaces (14), two sides of the sedimentation tank (1) are provided with four connecting frames (2) extending to the outside of the end of the sedimentation tank (1), four discharge mechanisms are installed on the four connecting frames (2), one end of the sedimentation tank (1) is provided with a lifting mechanism extending to the lower side of the sedimentation tank (1), the inner wall of the sedimentation tank (1) is slidably connected with a porous intercepting net (12), the bottom end of the porous intercepting net (12) is attached to the fixed inclined surface (14), the top of the porous intercepting net (12) is integrally formed with a blocking plate (13) protruding upward, the output end of the lifting mechanism penetrates the bottom plate of the sedimentation tank (1) and is connected with the bottom end of the porous intercepting net (12), and the output end of the lifting mechanism is slidably connected with the bottom plate of the sedimentation tank (1).

2. A device for potassium chloride crystallization treatment according to claim 1, characterized in that, The lifting mechanism comprises a No. 2 forward and reverse motor (8) mounted on one end of the sedimentation tank (1) through a support, the output end of the No. 2 forward and reverse motor (8) is connected with a lifting screw (9), the lifting screw (9) is rotatably connected with the support, the outer thread of the lifting screw (9) is connected with a lifting plate (10) extending to the lower side of the sedimentation tank (1), the top of the lifting plate (10) is welded with two lifting rods (11) protruding upward, the lifting rods (11) penetrate the bottom plate of the sedimentation tank (1) and are fixedly connected with the bottom end of the porous intercepting net (12), and the lifting rods (11) are slidably connected with the bottom plate of the sedimentation tank (1).

3. A device for potassium chloride crystallization treatment according to claim 2, characterized in that, The discharge mechanism comprises a bidirectional screw (4) rotatably connected between two connecting frames (2) distributed along the length direction of the sedimentation tank (1) and a guide rod (5) fixedly connected between the other two connecting frames (2), a No. 1 forward and reverse motor (3) is installed on the top vertical plate of one connecting frame (2), and the output end of the No. 1 forward and reverse motor (3) is fixedly connected with one end of the bidirectional screw (4).

4. The apparatus for potassium chloride crystallization treatment according to claim 3, wherein The discharge mechanism further comprises two moving ears (7) slidably connected to the outer wall of the guide rod (5) and two threaded connecting ears (6) threadedly connected to the outer wall of the bidirectional screw (4), the threaded connecting ears (6) and the bottom ends of the moving ears (7) are integrally formed with connecting rods (20), the mutually distal sides of the two connecting rods (20) are integrally formed with outwardly protruding sliding ears (15), the inner walls of the sliding ears (15) are slidably connected with sliding rods (16), the bottom ends of the sliding rods (16) are fixedly installed with fixed ears (17), and the inner sides of the fixed ears (17) are integrally formed with downwardly protruding cleaning plates (18).

5. A device for potassium chloride crystallization treatment according to claim 4, characterized in that, The bottom end of the sliding ear (15) and the top end of the fixed ear (17) abut against a spring (19), the spring (19) is sleeved on the outer wall of the sliding rod (16), and a anti-disengagement part is formed on the top end of the sliding rod (16) above the sliding ear (15).

6. A device for potassium chloride crystallization treatment according to claim 5, characterized in that, The top end of the porous intercepting net (12) is integrally formed with an outwardly downwardly inclined guide slope, and the bottom end of the cleaning plate (18) is formed with a matching slope.

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