Acid precipitation ammonium molybdate reaction kettle

Abstract

The utility model discloses an acid precipitation ammonium molybdate reaction kettle, and particularly relates to the technical field of reaction kettles, a stirring motor is fixed at the top end of a reaction kettle shell, a rectangular frame column is positioned at the top end of the stirring motor and is fixedly connected with the stirring motor, and a steady flow blocking mechanism is mounted on the inner wall of the rectangular frame column; the steady flow blocking mechanism comprises a linkage screw rod installed on the inner wall of the rectangular frame column, and the upper portion of the linkage screw rod is in threaded connection with a linkage sleeve block. According to the flow stabilizing and blocking mechanism, the speed reducing motor drives the linkage screw rod to rotate in the rectangular frame column, the linkage ring frame drives the multiple connecting supporting plates to synchronously move downwards, the multiple connecting supporting plates respectively drive the multiple blocking and liquid stabilizing plates to synchronously move downwards, the four blocking and liquid stabilizing plates achieve blocking and buffering on a mixed solution flowing in a rotating mode, and therefore the flow stabilizing and liquid stabilizing effects are achieved. A mixed solution of an ammonium molybdate solution and hydrochloric acid is rapidly subjected to standing precipitation, and the reaction precipitation speed of acid precipitation ammonium molybdate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, and more specifically, to an ammonium molybdate acid precipitation reaction kettle. Background Art

[0002] An ammonium molybdate acid precipitation reaction kettle is a device used for chemical reactions. Specifically, it is involved in the acid precipitation process of ammonium molybdate. In this process, the reaction kettle provides a necessary reaction environment, enabling ammonium molybdate to react with acid to generate the required products. In addition, the reaction kettle is also equipped with some auxiliary devices, such as a stirring motor and a feed pipe, etc., to ensure that the reaction can proceed uniformly and efficiently.

[0003] However, in the preparation process of ammonium molybdate, hydrochloric acid is needed to acidify the ammonium molybdate solution to precipitate molybdic acid. When the precipitation occurs, with the continuous stirring of the stirring rod, the hydrochloric acid acidified ammonium molybdate solution rotates and moves continuously, making it difficult to quickly statically precipitate the hydrochloric acid acidified ammonium molybdate solution, resulting in a low precipitation rate of ammonium molybdate and affecting the reaction rate. Therefore, an ammonium molybdate acid precipitation reaction kettle is needed. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an ammonium molybdate acid precipitation reaction kettle.

[0005] To achieve the above object, the utility model provides the following technical solution: an ammonium molybdate acid precipitation reaction kettle, including a reaction kettle housing and a stirring motor, the stirring motor is fixed at the top of the reaction kettle housing, including a rectangular frame column fixedly connected to the top of the stirring motor and a flow stabilizing and blocking mechanism installed on the inner wall of the rectangular frame column; the flow stabilizing and blocking mechanism includes a linkage screw installed on the inner wall of the rectangular frame column, the linkage screw is rotatably connected to the inner wall of the rectangular frame column through a bearing, the bottom end of the linkage screw is rotatably connected to the top of the stirring motor housing, the upper part of the linkage screw is threadedly connected with a linkage sleeve block, and the linkage sleeve block is slidably connected to the rectangular frame column, and a linkage ring frame is fixed on the outer wall of the linkage sleeve block; a reduction motor for driving the linkage screw to rotate is fixedly connected to the top of the rectangular frame column, and a plurality of connecting support plates are fixedly connected in a circular ring equidistant distribution below the linkage ring frame, and a partition and liquid stabilizing plate slidably connected to the reaction kettle housing vertically is provided at the bottom end of each connecting support plate.

[0006] Optionally, in a possible implementation manner, the outer walls of the plurality of partition and liquid stabilizing plates are polished; the cross-sectional area of the top end of the partition and liquid stabilizing plate is larger than the cross-sectional area of its bottom end.

[0007] Optionally, in a possible implementation, a support ring fixedly connected to the top end of the reaction kettle shell is provided outside the stirring motor. The output end of the stirring motor is fixedly connected with a stirring rod for stirring, and the stirring rod extends into the reaction kettle shell and is rotatably connected thereto. A plurality of stirring rods are fixedly arranged on the side wall of the stirring rod, and a plurality of guiding sliding frames are fixedly connected to the outer wall of the support ring at equal intervals in a circular shape; the inner wall of the guiding sliding frame is vertically slidably connected to the outer wall of the partition and liquid stabilizing plate. An electric valve is fixedly installed at the bottom end of the reaction kettle shell. A first liquid inlet pipe is welded to the outer wall of the reaction kettle shell and near its top position, and a second liquid inlet pipe fixedly communicated with the reaction kettle shell is arranged on one side of the first liquid inlet pipe. The output end of the stirring motor is fixedly connected with a stirring rod for stirring, and the outer wall of the stirring rod is rotatably connected to the inner wall of the reaction kettle shell.

[0008] It can be seen that when the above technical solution is used, the stirring motor is turned off and the reduction motor is started. The linkage screw drives the linkage sleeve block to slide downward along the inner wall of the rectangular frame column under the action of the thread. The linkage ring frame drives a plurality of connecting support plates to move downward synchronously. A plurality of connecting support plates respectively drive a plurality of partition and liquid stabilizing plates to move downward synchronously. The partition and liquid stabilizing plates are inserted into the reaction kettle shell along the inner wall of the guiding sliding frame. A plurality of partition and liquid stabilizing plates are inserted into the gaps between the stirring rods, and the mixed solution inside the reaction kettle shell is divided into four regions to achieve rapid buffer partition.

[0009] Optionally, in a possible implementation, a shunt aeration mechanism is installed on the outer wall of the reaction kettle shell and near its bottom end; the shunt aeration mechanism includes a plurality of impact pipes fixedly communicated with the outer wall of the reaction kettle shell and near its bottom end. One end of each impact pipe is welded with a pressurizing branch pipe; the top end of the pressurizing branch pipe is welded and communicated with a shunt ring pipe with a cross-sectional shape of a circular ring. Above the shunt ring pipe, an air supply pipe and an air pump are arranged from bottom to top in sequence. The air pump is used to pressurize air. The shunt ring pipe and the output end of the air pump are both fixedly communicated with the air supply pipe. The input end of the air pump is welded and communicated with a suction pipe, and one end of the suction pipe is fixedly connected with a filter hole plate for filtering air.

[0010] It can be seen that when the above technical solution is used, the air pump is started to pressurize the external air through the suction pipe. The pressurized air enters the air supply pipe along the suction pipe. The shunt ring pipe shunts the pressurized air into a plurality of pressurizing branch pipes. A plurality of impact pipes can perform aeration impact mixing on the ammonium molybdate solution and hydrochloric acid mixture inside the reaction kettle shell.

[0011] The technical effects and advantages of the present utility model:

[0012] 1. The utility model adopts a flow-stabilizing barrier mechanism to make the reduction motor drive the linkage screw to rotate inside the rectangular frame column, the linkage screw drives the linkage sleeve to slide down along the inner wall of the rectangular frame column under the action of the thread, the linkage ring frame drives multiple connecting support plates to move downward synchronously, and the multiple connecting support plates respectively drive multiple barrier liquid-stabilizing plates to move downward synchronously, and the multiple barrier liquid-stabilizing plates are inserted into the gaps between the stirring rods. The four barrier liquid-stabilizing plates achieve barrier buffering for the rotating mixed solution, so that the mixed solution of ammonium molybdate solution and hydrochloric acid is quickly statically precipitated, the precipitation speed of ammonium molybdate is faster, and the reaction speed of acid precipitation of ammonium molybdate is improved;

[0013] 2. The utility model starts the air pump through the diversion aeration mechanism to make the suction pipe pressurize the external air, and inject it into the diversion ring pipe through the air supply pipe. The diversion ring pipe diverts the pressurized air to the inside of multiple pressurized branch pipes. The multiple impact pipes can achieve aeration impact mixing of the ammonium molybdate solution and the hydrochloric acid mixture inside the reactor shell, and the aeration mixing is uniform, and the mixing effect of the ammonium molybdate solution and the hydrochloric acid reaction is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the main structure of an acid precipitation ammonium molybdate reaction kettle.

[0015] Figure 2 The utility model is a schematic diagram of the top view of the structure of an acid precipitation ammonium molybdate reactor.

[0016] Figure 3 It is a schematic diagram of the partial structure of the connection between the shell of the reactor and the stirring motor of the utility model.

[0017] Figure 4 It is a schematic diagram of the partial structure of the flow stabilizing barrier mechanism of the utility model when viewed from above.

[0018] Figure 5 It is a schematic diagram of the local structure of the vertical section of the shell of the reactor of the utility model.

[0019] Figure 6 It is a schematic diagram of the local structure of the connection between the boost branch pipe and the flow distribution ring pipe of the utility model.

[0020] The accompanying drawings are marked as follows: 1. reactor shell; 2. stirring motor; 3. rectangular frame column; 4. linkage screw; 5. linkage sleeve block; 6. linkage ring frame; 7. reduction motor; 8. connecting support plate; 9. barrier and stabilizing liquid plate; 10. support ring; 11. guide slide frame; 12. electric valve; 13. first liquid inlet pipe; 14. second liquid inlet pipe; 15. stirring rod; 16. impact pipe; 17. boost branch pipe; 18. diversion ring pipe; 19. air supply pipe; 20. air pump; 21. suction pipe; 22. filter plate. DETAILED DESCRIPTION

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] As shown in the attached Figure 1-6 figure, there is provided a reaction kettle for acid precipitation of ammonium molybdate, and a flow-stabilizing partition mechanism is provided on the reaction kettle for acid precipitation of ammonium molybdate. The setting of the flow-stabilizing partition mechanism can enable the four partition liquid-stabilizing plates 9 to achieve partition buffering for the rotating and flowing mixed solution, quickly make the ammonium molybdate solution and hydrochloric acid for the mixed solution to quickly stand and precipitate, the precipitation speed of ammonium molybdate is faster, and the reaction speed of acid precipitation of ammonium molybdate is improved. The specific structure of the flow-stabilizing partition mechanism is set as follows:

[0023] In this embodiment, as shown in the attached Figure 1-5 figure, the flow-stabilizing partition mechanism includes a linkage screw 4 installed on the inner wall of the rectangular frame column 3. A linkage sleeve block 5 is threadedly connected to the upper part of the linkage screw 4, and a linkage ring frame 6 is integrally formed by die casting on the outer wall of the linkage sleeve block 5; the linkage screw 4 is rotatably connected to the inner wall of the rectangular frame column 3 through a bearing, the bottom end of the linkage screw 4 is rotatably connected to the top of the outer shell of the stirring motor 2, the top end of the linkage sleeve block 5 is fixedly connected with a reduction motor 7 for driving the linkage screw 4 to rotate, and a plurality of connecting support plates 8 are fixedly connected in an equidistant circular distribution below the linkage ring frame 6. The bottom end of each connecting support plate 8 is provided with a partition liquid-stabilizing plate 9 slidably connected to the vertical direction of the reaction kettle outer shell 1;

[0024] The usage method of the reaction kettle for acid precipitation of ammonium molybdate in this embodiment is as follows;

[0025] Step 1, pour the ammonium molybdate solution into the interior of the reaction kettle outer shell 1 through the second liquid inlet pipe 14, and at the same time pour hydrochloric acid into the interior of the reaction kettle outer shell 1 through the first liquid inlet pipe 13. Start the stirring motor 2 to drive the stirring rod 15 to rotate inside the reaction kettle outer shell 1, so that the ammonium molybdate solution and hydrochloric acid are mixed and reacted to precipitate;

[0026] Step 2, when quickly standing still and precipitating, turn off the stirring motor 2 and start the reduction motor 7. The reduction motor 7 drives the linkage screw 4 to rotate inside the rectangular frame column 3. At the same time, the linkage screw 4 drives the linkage sleeve block 5 to slide downward along the inner wall of the rectangular frame column 3 under the action of the thread. At the same time, the linkage sleeve block 5 drives the linkage ring frame 6 to move downward, and the linkage ring frame 6 drives a plurality of connecting support plates 8 to move downward synchronously. A plurality of connecting support plates 8 respectively drive a plurality of partition and liquid stabilizing plates 9 to move downward synchronously. The partition and liquid stabilizing plates 9 are inserted and moved into the reaction kettle housing 1 along the inner wall of the guiding sliding frame 11. At the same time, the support ring 10 provides stable support for a plurality of guiding sliding frames 11. A plurality of partition and liquid stabilizing plates 9 are inserted into the gaps between the stirring rods 15, dividing the mixed solution inside the reaction kettle housing 1 into four regions, and at the same time buffering the rotating and flowing mixed solution, quickly causing the ammonium molybdate solution and hydrochloric acid to stand still and precipitate quickly. The precipitation speed of ammonium molybdate is faster. After the ammonium molybdate acid precipitation is completed, open the electric valve 12 to achieve downward discharge.

[0027] In this embodiment, as shown in the appendix Figure 1-5 As shown, outside the stirring motor 2, there is a support ring 10 fixedly connected to the top end of the reaction kettle housing 1, and a plurality of guiding sliding frames 11 are fixedly connected to the outer wall of the support ring 10 at equal intervals in a circular ring shape; the inner wall of the guiding sliding frame 11 is vertically slidably connected to the outer wall of the partition and liquid stabilizing plate 9, so that during operation, the support ring 10 provides stable support for a plurality of guiding sliding frames 11, and the partition and liquid stabilizing plate 9 is inserted and moved into the reaction kettle housing 1 along the inner wall of the guiding sliding frame 11 to achieve the stable vertical movement of the partition and liquid stabilizing plate 9. An electric valve 12 is fixedly installed at the bottom end of the reaction kettle housing 1. On the outer wall of the reaction kettle housing 1 and near its top position, a first liquid inlet pipe 13 is welded, and on one side of the first liquid inlet pipe 13, there is a second liquid inlet pipe 14 fixedly communicated with the reaction kettle housing 1, so as to pour the ammonium molybdate solution into the reaction kettle housing 1 through the second liquid inlet pipe 14, and at the same time pour hydrochloric acid into the reaction kettle housing 1 through the first liquid inlet pipe 13, realizing the quick precipitation after the ammonium molybdate solution and hydrochloric acid are mixed and reacted. After the ammonium molybdate acid precipitation is completed, open the electric valve 12 to achieve downward discharge;

[0028] The output end of the stirring motor 2 is fixedly connected with a stirring rod 15 for stirring. A plurality of stirring rods are fixed on the side wall of the stirring rod, and the outer wall of the stirring rod 15 is rotatably connected with the inner wall of the reaction kettle housing 1, so that when in use, start the stirring motor 2 to drive the stirring rod 15 to rotate inside the reaction kettle housing 1, and the stirring rod 15 can be used to fully mix and react the ammonium molybdate solution and hydrochloric acid.

[0029] In this embodiment, as shown in the appendix Figure 1-6As shown in the figure, a shunt aeration mechanism is installed on the outer wall of the reactor shell 1 near its bottom end; the shunt aeration mechanism includes a plurality of impact pipes 16 fixedly communicated with the outer wall of the reactor shell 1 near its bottom end, and a booster branch pipe 17 is welded to one end of each impact pipe 16; the top end of the booster branch pipe 17 is welded and communicated with a shunt ring pipe 18 with a circular cross-section shape. Above the shunt ring pipe 18, an air supply pipe 19 and an air pump 20 are arranged from bottom to top in sequence. The air pump 20 is used to boost air. The input end of the air pump 20 is welded and communicated with a suction pipe 21, and a filter hole plate 22 for filtering air is fixedly connected to one end of the suction pipe 21;

[0030] During shunt aeration according to the above structure, the air pump 20 is started to boost the external air by the suction pipe 21. The boosted air enters the air supply pipe 19 along the suction pipe 21, is poured into the shunt ring pipe 18 through the air supply pipe 19, and the boosted air is shunted into a plurality of booster branch pipes 17 by the shunt ring pipe 18. The boosted air is shunted into a plurality of impact pipes 16 along the plurality of booster branch pipes 17. The plurality of impact pipes 16 can perform aeration impact mixing on the ammonium molybdate solution and hydrochloric acid mixture inside the reactor shell 1, and the ammonium molybdate solution and hydrochloric acid at the bottom can quickly achieve reaction mixing.

[0031] Contents not described in detail in the specification belong to the prior art well-known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited. Conventional equipment can be used. In this technical solution, since the electrical control components not mentioned belong to the prior art, they are not shown in the figure and will not be described here.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An acid precipitation ammonium molybdate reactor, comprising a reactor shell (1) and a stirring motor (2), the stirring motor (2) is fixed at the top of the reactor shell (1), and is characterized in that: It further includes a rectangular frame column (3) fixedly connected to the top of the stirring motor (2) and a flow-stabilizing partition mechanism installed on the inner wall of the rectangular frame column (3); The flow-stabilizing partition mechanism includes a linkage screw rod (4) installed on the inner wall of the rectangular frame column (3). The linkage screw rod (4) is rotatably connected to the inner wall of the rectangular frame column (3) through a bearing. The bottom end of the linkage screw rod (4) is rotatably connected to the top of the outer shell of the stirring motor (2). A linkage sleeve block (5) is threadedly connected to the upper part of the linkage screw rod (4), and the linkage sleeve block (5) is slidably connected to the rectangular frame column (3). A linkage ring frame (6) is fixed to the outer wall of the linkage sleeve block (5); A reduction motor (7) for driving the rotation of the linkage screw rod (4) is fixedly connected to the top end of the rectangular frame column (3). A plurality of connecting support plates (8) are fixedly connected in an equidistant circular distribution below the linkage ring frame (6). A partition and liquid-stabilizing plate (9) that is vertically slidably connected to the reaction kettle outer shell (1) is provided at the bottom end of each connecting support plate (8).

2. The ammonium molybdate reaction kettle for acid precipitation according to claim 1, characterized in that: The outer walls of the plurality of partition and liquid-stabilizing plates (9) are all polished; the cross-sectional area of the top end of the partition and liquid-stabilizing plate (9) is larger than that of its bottom end cross-sectional area.

3. The ammonium molybdate reaction kettle for acid precipitation according to claim 1, characterized in that: A support ring (10) fixedly connected to the top end of the reaction kettle outer shell (1) is provided outside the stirring motor (2), and a plurality of guiding sliding frames (11) are fixedly connected to the outer wall of the support ring (10) in an equidistant circular distribution; the inner wall of the guiding sliding frame (11) is vertically slidably connected to the outer wall of the partition and liquid-stabilizing plate (9).

4. The ammonium molybdate reaction kettle for acid precipitation according to claim 1, wherein: An electric valve (12) is fixedly installed at the bottom end of the reaction kettle outer shell (1). A first liquid inlet pipe (13) is welded to the outer wall of the reaction kettle outer shell (1) and near its top end position, and a second liquid inlet pipe (14) fixedly communicated with the reaction kettle outer shell (1) is provided on one side of the first liquid inlet pipe (13).

5. The ammonium molybdate reaction kettle for acid precipitation according to claim 1, characterized in that: The output end of the stirring motor (2) is fixedly connected to a stirring rod (15) for stirring, and the stirring rod (15) extends into the reaction kettle outer shell (1) and is rotatably connected thereto. A plurality of stirring rods are fixed to the side wall of the stirring rod.

6. The ammonium molybdate reaction kettle for acid precipitation according to claim 1, wherein: A flow distribution and aeration mechanism is installed on the outer wall of the reaction kettle outer shell (1) and near its bottom end position; The flow distribution and aeration mechanism includes a plurality of impact pipes (16) fixedly communicated with the outer wall of the reaction kettle outer shell (1) and near its bottom end position. A pressurizing branch pipe (17) is welded to one end of each impact pipe (16); The top end of the pressurizing branch pipe (17) is welded and communicated with a flow distribution ring pipe (18) with a cross-sectional shape of a circular ring. An air supply pipe (19) and an air pump (20) are sequentially arranged from bottom to top above the flow distribution ring pipe (18). The air pump (20) is used for pressurizing air. The flow distribution ring pipe (18) and the output end of the air pump (20) are both fixedly communicated with the air supply pipe (19). The input end of the air pump (20) is welded and communicated with a suction pipe (21), and a filter hole plate (22) for filtering air is fixedly connected to one end of the suction pipe (21).

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