Reaction kettle for preparing sodium metaaluminate solution

Abstract

The utility model relates to the technical field of reaction kettles, and discloses a reaction kettle for preparing a sodium metaaluminate solution, which comprises a supporting seat, a kettle body fixedly mounted on the supporting seat, a sealing cover fixed at the top of the kettle body, a first motor fixedly mounted at the top of the sealing cover, and a first outer gear fixed at the output shaft end of the first motor, and a material injection pipe is arranged on the sealing cover in a penetrating mode, the sealing cover and the material injection pipe are rotationally connected through a bearing, the outer portion of the material injection pipe is fixedly sleeved with a second outer gear, and the first outer gear and the second outer gear are meshed with each other. A stirring assembly pulls a sodium hydroxide solution in a kettle body to rotate in the forward direction, aluminum hydroxide is put between a bearing frame and two net plates along a material injection pipe, a first motor is started to drive a first outer gear to rotate, the first outer gear drives a second outer gear to rotate in the reverse direction, and the second outer gear pulls aluminum hydroxide in the bearing frame to rotate in the reverse direction; and a sodium hydroxide solution penetrates through the screen plate to strongly scour aluminum hydroxide.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, and more specifically, to a reaction kettle for preparing a sodium aluminate solution. Background Art

[0002] The method for preparing sodium aluminate solution is generally to dissolve sodium hydroxide in softened water to prepare a sodium hydroxide solution, stir it, then add aluminum hydroxide, stir until the aluminum hydroxide is completely dissolved and the solution is clear, then gradually heat it to 90-160°C in a short time, keep it warm for 2-10 hours, add a stabilizer, stir it evenly, and then the sodium aluminate solution can be obtained.

[0003] A reactor is required to prepare sodium aluminate solution. When a common reactor is used, the aluminum hydroxide added to the sodium hydroxide solution is generally stirred together with the sodium hydroxide solution. The two have the same rotation direction, resulting in less force of the sodium hydroxide solution to flush the aluminum hydroxide, making the dissolution rate of the aluminum hydroxide lower, affecting the preparation efficiency of the sodium aluminate solution. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a reaction kettle for preparing a sodium aluminate solution. The sodium hydroxide solution in the kettle body is driven to rotate in the forward direction by a stirring component, and aluminum hydroxide is put into between a supporting frame and two mesh plates along a feeding pipe. The first motor is started to drive the first external gear to rotate, so that the first external gear drives the second external gear to rotate in the opposite direction. The second external gear drives the aluminum hydroxide inside the supporting frame to rotate in the opposite direction, so that the sodium hydroxide solution passes through the mesh plate to strongly flush the aluminum hydroxide.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a reaction kettle for preparing sodium aluminate solution, comprising a support seat, a kettle body is fixedly installed on the support seat, a sealing cover is fixedly installed on the top of the kettle body, a first motor is fixedly installed on the top of the sealing cover, a first external gear is fixedly installed on the output shaft end of the first motor, an injection pipe is penetrated through the sealing cover, and the joint of the sealing cover and the injection pipe is rotatably connected through a bearing, a second external gear is fixedly sleeved on the outside of the injection pipe, the first external gear and the second external gear are meshed with each other, the bottom end of the injection pipe is fixedly connected to a bearing frame, and mesh plates are provided at both open ends of the bearing frame, a stirring assembly is provided inside the kettle body, and the stirring assembly is used for stirring the solution in the kettle body, a feed pipe is fixedly connected to the bottom of the kettle body, a flipping assembly is provided on the feed pipe, and the flipping assembly is used for flipping the upper and lower layer solutions of the kettle body, and a discharge pipe is fixedly connected to the feed pipe, and a valve is provided on the discharge pipe.

[0006] As a preferred technical solution of the utility model, a group of heaters are arranged inside the kettle body.

[0007] As a preferred technical solution of the utility model, a sealing cap is sleeved on the top of the injection pipe, and the injection pipe is threadedly connected to the sealing cap.

[0008] As a preferred technical solution of the utility model, the flipping assembly includes a sealing block and a spiral auger, the sealing block is fixedly installed on the inner side of the bottom end of the feed pipe, and the feed pipe is sleeved on the outside of the spiral auger.

[0009] As a preferred technical solution of the utility model, a second motor is fixedly installed at the bottom of the sealing block, a first transmission rod is fixed to the output shaft end of the second motor, the spiral auger is fixedly installed at the top of the first transmission rod, and a seal is provided at the junction of the sealing block and the first transmission rod.

[0010] As a preferred technical solution of the utility model, the stirring assembly includes a ring rail and a third motor, the ring rail is fixedly installed inside the kettle body, and the third motor is fixedly installed on the top of the sealing cover.

[0011] As a preferred technical solution of the utility model, a second transmission rod is fixed to the output shaft end of the third motor, a third external gear is fixed to the bottom end of the second transmission rod, an internal gear is rotatably installed on the inner side of the ring rail, and the third external gear and the internal gear are meshed with each other.

[0012] As a preferred technical solution of the utility model, two carrier rods are fixed to the bottom of the internal gear, and a plurality of stirring rods are fixed on the carrier rods.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model uses a stirring component to pull the sodium hydroxide solution in the kettle body to rotate in the forward direction, and puts aluminum hydroxide into the space between the supporting frame and the two mesh plates along the injection pipe, and starts the first motor to drive the first external gear to rotate, so that the first external gear drives the second external gear to rotate in the opposite direction, and the second external gear pulls the aluminum hydroxide inside the supporting frame to rotate in the opposite direction, so that the sodium hydroxide solution passes through the mesh plate to strongly flush the aluminum hydroxide, which significantly improves the dissolution efficiency of the aluminum hydroxide.

[0015] 2. The utility model drives the spiral auger to rotate through the ring rail, so that the spiral auger drives the solution at the bottom of the kettle to be transported upward. In conjunction with the stirring component, the solution in the kettle can be better stirred, helping the solution in the kettle to be mixed and better heated by the heater; the third motor is used to drive the third outer gear to rotate, and the third outer gear is engaged with the inner gear to pull the inner gear to rotate, so that the inner gear drives the carrier rod and the stirring rod thereon to rotate, thereby stirring the solution in the kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the kettle body and the material delivery pipe in the utility model;

[0018] Figure 3 This is a connection diagram of the injection pipe, the second outer gear, the bearing frame, and the mesh plate in the utility model;

[0019] Figure 4 It is a structural schematic diagram of the stirring component in the utility model.

[0020] In the figure: 1. support base; 2. kettle body; 3. sealing cover; 4. first motor; 5. first external gear; 6. injection pipe; 7. second external gear; 8. bearing frame; 9. mesh plate; 10. sealing cap; 11. heater; 12. feed pipe; 13. discharge pipe; 14. sealing block; 15. spiral auger; 16. second motor; 17. first transmission rod; 18. ring rail; 19. third motor; 20. internal gear; 21. second transmission rod; 22. third external gear; 23. carrier rod; 24. stirring rod. DETAILED DESCRIPTION

[0021] 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.

[0022] like Figures 1 to 4As shown, the utility model provides a reaction kettle for preparing sodium aluminate solution, comprising a support base 1, a kettle body 2 is fixedly mounted on the support base 1, a sealing cover 3 is fixedly mounted on the top of the kettle body 2, a first motor 4 is fixedly mounted on the top of the sealing cover 3, a first external gear 5 is fixedly mounted on the output shaft end of the first motor 4, a group of heaters 11 are arranged inside the kettle body 2, an injection pipe 6 is penetrated through the sealing cover 3, and the joint of the sealing cover 3 and the injection pipe 6 is rotatably connected through a bearing, a sealing member is further arranged between the sealing cover 3 and the injection pipe 6, and a second external gear 7 is fixedly sleeved on the outside of the injection pipe 6, The first external gear 5 is meshed with the second external gear 7, the bottom end of the injection tube 6 is fixedly connected to a bearing frame 8, and mesh plates 9 are provided at both open ends of the bearing frame 8, a sealing cap 10 is sleeved on the top of the injection tube 6, and the injection tube 6 is threadedly connected to the sealing cap 10, a stirring assembly is provided inside the kettle body 2, and the stirring assembly is used to stir the solution in the kettle body 2, a feed pipe 12 is fixedly connected to the bottom of the kettle body 2, a flipping assembly is provided on the feed pipe 12, and the flipping assembly is used to flip the upper and lower layer solutions of the kettle body 2, a discharge pipe 13 is fixedly connected to the feed pipe 12, and a valve is provided on the discharge pipe 13.

[0023] The stirring assembly is used to pull the sodium hydroxide solution in the kettle body 2 to rotate in the forward direction, and the aluminum hydroxide is placed between the supporting frame 8 and the two mesh plates 9 along the injection pipe 6. The first motor 4 is started to drive the first external gear 5 to rotate, so that the first external gear 5 drives the second external gear 7 to rotate in the opposite direction. The second external gear 7 pulls the aluminum hydroxide inside the supporting frame 8 to rotate in the opposite direction, so that the sodium hydroxide solution passes through the mesh plates 9 to strongly flush the aluminum hydroxide.

[0024] Among them, the flipping component includes a sealing block 14 and a spiral auger 15. The sealing block 14 is fixedly installed on the inner side of the bottom end of the feed pipe 12, and the feed pipe 12 is sleeved on the outside of the spiral auger 15. A second motor 16 is fixedly installed at the bottom of the sealing block 14, and a first transmission rod 17 is fixed to the output shaft end of the second motor 16. The spiral auger 15 is fixedly installed on the top end of the first transmission rod 17, and a seal is provided at the joint of the sealing block 14 and the first transmission rod 17.

[0025] The spiral auger 15 is driven to rotate by the ring rail 18 so that the spiral auger 15 drives the solution at the bottom of the kettle body 2 to be transported upward. In combination with the stirring component, the solution in the kettle body 2 can be better stirred, helping the solution in the kettle body 2 to be mixed and better heated by the heater 11.

[0026] Among them, the stirring assembly includes a ring rail 18 and a third motor 19. The ring rail 18 is fixedly installed inside the kettle body 2, and the third motor 19 is fixedly installed on the top of the sealing cover 3. The output shaft end of the third motor 19 is fixed with a second transmission rod 21, and the bottom end of the second transmission rod 21 is fixed with a third external gear 22. An internal gear 20 is rotatably installed on the inner side of the ring rail 18, and the third external gear 22 is meshed with the internal gear 20. Two carrier rods 23 are fixed at the bottom of the internal gear 20, and multiple stirring rods 24 are fixed on the carrier rod 23.

[0027] The third motor 19 is used to drive the third outer gear 22 to rotate. The third outer gear 22 is meshed with the inner gear 20 to pull the inner gear 20 to rotate, so that the inner gear 20 drives the carrier rod 23 and the stirring rod 24 thereon to rotate, thereby stirring the solution in the kettle 2.

[0028] The working principle and use process of this utility model:

[0029] Remove the sealing cap 10, and inject a certain amount of sodium hydroxide solution into the kettle body 2 along the injection pipe 6. Then, add aluminum hydroxide between the supporting frame 8 and the two mesh plates 9 along the injection pipe 6, and use the sealing cap 10 to block the injection pipe 6 again, start the first motor 4 to drive the first external gear 5 to rotate, and the first external gear 5 and the second external gear 7 are meshed with each other, so that the second external gear 7 can be driven to rotate in the opposite direction, so that the second external gear 7 can pull the aluminum hydroxide inside the supporting frame 8 to rotate in the sodium hydroxide solution. At the same time, the third motor 19 is used to drive the third external gear 22 to rotate, and the third external gear 22 and the internal gear 20 are meshed with each other, so that the internal gear 20 can be pulled to rotate forward, so that the internal gear 20 drives the carrier rod 23 and the stirring rod 24 thereon to rotate, and pulls the sodium hydroxide solution in the kettle body 2 to flush the aluminum hydroxide back and forth until the aluminum hydroxide is completely dissolved;

[0030] The heater 11 is controlled to operate so that the heater 11 heats the solution in the kettle 2, causing the solution to gradually rise in temperature to 90-160°C and keep warm for 2-10 hours. After adding a stabilizer and stirring evenly, a sodium aluminate solution can be obtained. During the solution stirring process, the ring rail 18 can be controlled to drive the spiral auger 15 to rotate, so that the spiral auger 15 drives the solution at the bottom of the kettle 2 to be transported upward. In combination with the stirring component, the solution in the kettle 2 can be better stirred, helping the solution in the kettle 2 to be mixed and better heated by the heater 11.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reaction kettle for preparing a sodium aluminate solution, comprising a support base (1), characterized in that: A kettle body (2) is fixedly mounted on the support seat (1), a sealing cover (3) is fixedly mounted on the top of the kettle body (2), a first motor (4) is fixedly mounted on the top of the sealing cover (3), a first external gear (5) is fixedly mounted on the output shaft end of the first motor (4), an injection pipe (6) is provided through the sealing cover (3), and the joint of the sealing cover (3) and the injection pipe (6) is rotatably connected via a bearing, a second external gear (7) is fixedly sleeved on the outside of the injection pipe (6), and the first external gear (5) and the second external gear (7) are meshed with each other. The bottom end of the injection pipe (6) is fixedly connected to a bearing frame (8), and mesh plates (9) are provided at both open ends of the bearing frame (8). A stirring assembly is provided inside the kettle body (2), and the stirring assembly is used to stir the solution in the kettle body (2). The bottom of the kettle body (2) is fixedly connected to a feed pipe (12), and a flipping assembly is provided on the feed pipe (12). The flipping assembly is used to flip the upper and lower layer solutions of the kettle body (2). The feed pipe (12) is fixedly connected to a discharge pipe (13), and a valve is provided on the discharge pipe (13).

2. A reaction kettle for preparing a sodium aluminate solution according to claim 1, characterized in that: A group of heaters (11) is arranged inside the kettle body (2).

3. A reaction kettle for preparing a sodium aluminate solution according to claim 1, characterized in that: A sealing cap (10) is sleeved on the top of the injection pipe (6), and the injection pipe (6) is threadedly connected to the sealing cap (10).

4. A reaction kettle for preparing a sodium aluminate solution according to claim 1, characterized in that: The turning assembly comprises a sealing block (14) and a spiral auger (15), wherein the sealing block (14) is fixedly mounted on the inner side of the bottom end of the feed pipe (12), and the feed pipe (12) is sleeved on the outside of the spiral auger (15).

5. A reaction kettle for preparing a sodium aluminate solution according to claim 4, characterized in that: A second motor (16) is fixedly mounted at the bottom of the sealing block (14); a first transmission rod (17) is fixedly mounted at the output shaft end of the second motor (16); the spiral auger (15) is fixedly mounted at the top end of the first transmission rod (17); and a sealing member is provided at the junction of the sealing block (14) and the first transmission rod (17).

6. A reaction kettle for preparing a sodium aluminate solution according to claim 1, characterized in that: The stirring assembly comprises a ring rail (18) and a third motor (19), wherein the ring rail (18) is fixedly mounted inside the kettle body (2), and the third motor (19) is fixedly mounted on the top of the sealing cover (3).

7. A reaction kettle for preparing a sodium aluminate solution according to claim 6, characterized in that: A second transmission rod (21) is fixed to the output shaft end of the third motor (19), a third external gear (22) is fixed to the bottom end of the second transmission rod (21), an internal gear (20) is rotatably mounted on the inner side of the ring rail (18), and the third external gear (22) and the internal gear (20) are meshed with each other.

8. A reaction kettle for preparing a sodium aluminate solution according to claim 7, characterized in that: Two carrier rods (23) are fixed at the bottom of the internal gear (20), and a plurality of stirring rods (24) are fixed on the carrier rods (23).

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