Multistage filter device for purifying strontium chloride

Abstract

The application discloses a kind of multistage filtering devices for strontium chloride purification, comprising: base, left side fixed with support on it, right side circumferentially arranged with support seat;Filter cartridge, installed on the support;Ring seat, configured as two groups, respectively fixedly sleeved in the middle and upper part of the support seat;Purification cylinder, fixed on the ring seat, and its inside is equipped with purification mechanism;Cover, set at the top end position of the purification cylinder, and connected with the purification mechanism;And connecting pipe, communicated between the filter cartridge and the purification cylinder, and the interface between the purification cylinder is telescopic structure.

Description

A multi-stage filtration device for strontium chloride purification Technical Field

[0001] This invention relates to the field of filtration and purification, specifically to a multi-stage filtration device for strontium chloride purification. Background Technology

[0002] Strontium chloride is commonly used in the manufacture of red fireworks. The preparation of strontium chloride requires a series of pre-reactions to be completed first. Then, the precipitate after the pre-reaction is filtered out by solid-liquid separation to obtain a strontium chloride solution. Finally, the strontium chloride solution is subjected to operations such as evaporation and crystallization to obtain the strontium chloride product.

[0003] In the filtration and precipitation step, the filter plate in the existing device is always stationary, and the large amount of reaction liquid passing through the filter plate at the same time can easily cause blockage or damage. After precipitation and filtration, other impurity ions in the strontium chloride solution are not removed and evaporation and crystallization are carried out directly, resulting in the strontium chloride product having substandard purity and failing to achieve the expected use effect. In the evaporation and crystallization step, the corresponding mechanism in the existing device is also always stationary, which will cause the evaporation and crystallization rate of the strontium chloride solution to decrease significantly. Moreover, the strontium chloride solution in the stationary state is heated to different degrees at different locations, resulting in uneven particle size after crystallization. It is also easy for some strontium chloride solution to be heated for too long, causing decomposition and deterioration, which increases the difficulty of subsequent separation and drying operations.

[0004] Therefore, a multi-stage filtration device for strontium chloride purification is needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage filtration device for strontium chloride purification, comprising:

[0006] The base has a bracket fixed on its left side and a support seat arranged around its right circumference.

[0007] The filter cartridge is mounted on the bracket;

[0008] The ring seat is configured in two sets, which are respectively fixedly sleeved on the middle and upper parts of the support seat;

[0009] A purification cylinder is fixed on the ring seat, and a purification mechanism is installed inside it;

[0010] A cap is disposed at the top of the purification cylinder and connected to the purification mechanism; and

[0011] A connecting pipe connects the filter cylinder and the purification cylinder, and the interface between the pipe and the purification cylinder is a retractable structure.

[0012] Furthermore, preferably, the filter cartridge includes:

[0013] The core tube is disposed inside the filter cylinder, and the core tube is divided into upper and lower cavities by an openable and closable connecting part. The upper side is the sediment removal cavity and the lower side is the impurity removal cavity.

[0014] A diffuser mechanism is fixedly connected to the upper part of the core cylinder;

[0015] The filter assembly is configured as two sets, respectively disposed on the inner walls of the sediment removal chamber and the impurity removal chamber, and a groove is formed at the connection point; and

[0016] The impurity removal port is located on the outer wall of the core cylinder and communicates with the impurity removal cavity.

[0017] Furthermore, as a preferred embodiment, the filter assembly includes: a connecting block, which is slidably disposed in the cavity, with one end of the connecting block connected to a spring in the vertical direction and the other end connected to a telescopic member, and a filter plate connected to one end of the connecting block in the horizontal direction near the inside of the core cylinder.

[0018] Furthermore, as a preferred embodiment, the cap includes: a main liquid inlet located on the left side of the top of the cap and connected to the connecting pipe; a secondary liquid inlet located on the right side of the top of the cap; and a lifting part installed on the top of the cap.

[0019] Furthermore, as a preferred embodiment, intelligent temperature-controlled heating elements are evenly distributed on the inner wall of the purification cylinder.

[0020] Furthermore, preferably, the purification mechanism includes:

[0021] The fixing rod group is configured as four groups, which are arranged in sequence along the vertical direction on the same straight line, and a disassembly ring is provided between two adjacent fixing rod groups. The end of the uppermost fixing rod group away from the disassembly ring is connected to the inner side of the top of the cap, and the end of the lowermost fixing rod group away from the disassembly ring is connected to the bottom of the inner side of the collection tray. The outer side of the collection tray slides against the inner side wall of the purification cylinder.

[0022] The purification discs are configured in three sets, and the inner sides of the inner walls of the three sets of purification discs are sequentially connected to the three sets of fixing rods from top to bottom.

[0023] A heat-conducting plate is disposed on the outer side of the outer wall of the three sets of purification discs, with its inner side penetrating through the outer wall of the purification discs and its outer side slidingly attached to the inner wall of the purification cylinder; and

[0024] The blades are arranged circumferentially between the outer side of the inner wall and the inner side of the outer wall of the purification disc.

[0025] Furthermore, preferably, the blade includes:

[0026] The drive unit is circumferentially arranged on the outer wall of the purification cylinder, and its output end is connected to a gear set; and

[0027] A connecting shaft is connected to the output end of the gear set and passes through the outer wall of the purification disk to connect with the blade. The end of the blade away from the connecting shaft is rotatably disposed on the outer side of the inner wall of the purification disk.

[0028] Furthermore, as a preferred embodiment, a flow guiding membrane is detachably connected between the inner walls of two adjacent purification discs or between the purification disc and the collection disc, and the connecting shaft is a telescopic structure.

[0029] Compared with the prior art, the present invention provides a multi-stage filtration device for strontium chloride purification, which has the following beneficial effects:

[0030] This invention changes the statically set filter plate to a dynamically set one, and adds a diffuser mechanism in front of it, effectively preventing damage to the filter plate caused by a large amount of reaction liquid falling onto it and blockage caused by prolonged filtration, thus not affecting the filtration effect and improving filtration accuracy. This invention also includes a purification chamber to remove other impurity ions from the strontium chloride solution before the evaporation and crystallization operation, improving the purity of the strontium chloride solution. Furthermore, this invention features a dynamic purification mechanism that performs multi-stage evaporation and crystallization operations on the strontium chloride solution in layers and stages, effectively avoiding uneven particle size after crystallization due to different heating levels at different locations in the static state, and preventing the phenomenon of excessively long heating time in some areas of the strontium chloride solution, thus avoiding decomposition and deterioration. Attached Figure Description

[0031] Figure 1 is a schematic diagram of a multi-stage filtration device for strontium chloride purification.

[0032] Figure 2 is a schematic diagram of the filter cylinder structure of a multi-stage filtration device for strontium chloride purification.

[0033] Figure 3 is a schematic diagram of the purification cylinder structure of a multi-stage filtration device for strontium chloride purification.

[0034] Figure 4 is a cross-sectional view of the purification mechanism of a multi-stage filtration device for strontium chloride purification.

[0035] In the diagram: 1. Base; 2. Support; 3. Filter cartridge; 31. Diffuser mechanism; 32. Filter assembly; 321. Connecting block; 322. Spring; 323. Filter plate; 33. Impurity removal port; 4. Support seat; 5. Ring seat; 6. Purification cartridge; 7. Purification mechanism; 71. Fixing rod assembly; 72. Disassembly ring; 73. Purification disc; 74. Heat-conducting plate; 75. Blade assembly; 751. Drive unit; 752. Gear set; 753. Connecting shaft; 754. Blade; 76. Collection disc; 8. Cover; 81. Main liquid inlet; 82. Secondary liquid inlet; 83. Lifting part; 9. Connecting pipe; 10. Guide membrane. Detailed Implementation

[0036] Please refer to Figures 1-4. This invention provides a multi-stage filtration device for strontium chloride purification, comprising:

[0037] The base 1 has a bracket 2 fixed on its left side and a support seat 4 arranged around its right circumference.

[0038] Filter cartridge 3 is mounted on the bracket 2;

[0039] The ring seat 5 is configured in two sets, which are respectively fixedly sleeved on the middle and upper parts of the support seat 4;

[0040] Purification cylinder 6 is fixed on the ring seat 5, and a purification mechanism 7 is installed inside it;

[0041] A cap 8 is disposed at the top of the purification cylinder 6 and connected to the purification mechanism 7; and

[0042] The connecting pipe 9 connects the filter cylinder 3 and the purification cylinder 6, and the interface between the pipe and the purification cylinder 6 is a retractable structure.

[0043] In this embodiment, the operator adds a pre-reacted strontium chloride solution with precipitate into the filter cartridge 3 through the opening. The filter cartridge 3 performs primary and secondary filtration. The primary filtration mainly separates the strontium chloride solution from the precipitate into a solid-liquid mixture. The secondary filtration mainly performs a second inspection of the strontium chloride solution. The filter cartridge 3 can also remove other impurity ions from the strontium chloride solution after the precipitate has been separated. Subsequently, the strontium chloride solution enters the purification cartridge 6 through the connecting pipe 9. The purification mechanism 7 performs evaporation and crystallization operations on the solution. The purification mechanism 7 can then be pulled out with the help of the cap 8 to collect the strontium chloride product for further separation and drying.

[0044] Furthermore, the filter cartridge 3 includes:

[0045] The core tube is disposed inside the filter cylinder 3. The core tube is divided into upper and lower cavities by an openable and closable connecting part. The upper side is the sediment removal cavity and the lower side is the impurity removal cavity.

[0046] The diffuser mechanism 31 is fixedly connected to the upper part of the core cylinder;

[0047] The filter assembly 32 is configured in two sets, respectively disposed on the inner walls of the sediment removal chamber and the impurity removal chamber, and a groove is provided at the connection point; and

[0048] The impurity removal port 33 is disposed on the outer wall of the core cylinder and communicates with the impurity removal cavity.

[0049] Furthermore, the filter assembly 32 includes: a connecting block 321, which is slidably disposed in the cavity. One end of the connecting block 321 in the vertical direction is connected to a spring 322, and the other end is connected to a telescopic member. The end of the connecting block 321 in the horizontal direction near the inside of the core cylinder is connected to a filter plate 323.

[0050] In a preferred embodiment, the upper sedimentation chamber is mainly used to remove precipitates from the strontium chloride solution, while the lower impurity removal chamber is mainly used to remove other impurity ions from the strontium chloride solution. Specifically, the reaction liquid entering the sedimentation chamber first passes through the diffuser mechanism 31. The diffuser mechanism 31 has multiple sets of double-cone-shaped diffuser channels evenly distributed on it. The diffuser channels can effectively help the reaction liquid to continue falling onto the filter plate 323 located in the sedimentation chamber in a dispersed state. Because the filter plate 323 is equipped with a sedimentation filter membrane, the above-mentioned diffuser mechanism 31 can prevent a large amount of reaction liquid from falling onto the sedimentation channel at the same time. Damage to the filter membrane is a concern. During the sedimentation filtration process, the telescopic component will cause the connecting block 321 to move downwards and compress the spring 322. The filter plate 323 will move downwards simultaneously. When the compression limit of the spring 322 is reached, the telescopic component stops moving and, with the help of the elastic force of the spring 322, quickly bounces the filter plate 323 upwards. When the telescopic component retracts to its limit position, the filter plate 323 will vibrate vertically, thereby shaking up a large amount of sediment attached to the sedimentation filter membrane, preventing the sedimentation filter membrane from becoming clogged and affecting the filtration accuracy.

[0051] After filtration and precipitation, the strontium chloride solution will enter the lower impurity removal chamber to remove impurity ions and improve the purity of the strontium chloride solution. The impurity removal port 33 will be vented with the solution required for impurity removal (and no new impurity ions will be introduced after the reaction). During this process, the filter plate 323 located in the impurity removal chamber will perform secondary filtration and perform a final inspection on the strontium chloride solution before evaporation and crystallization. It should be noted that the working principle of the filter plate 323 in the impurity removal chamber is the same as that in the sediment removal chamber.

[0052] Furthermore, the cap 8 includes: a main liquid inlet 81, which is located on the left side of the top of the cap 8 and is connected to the connecting pipe 9; a secondary liquid inlet 82 is located on the right side of the top of the cap 8; and a lifting part 83 is installed on the top of the cap 8.

[0053] In this embodiment, the cap 8 and the purification mechanism 7 can be pulled up together by the lifting part 83 to collect the strontium chloride product. When pulled up, the connecting pipe 9 is disconnected from the main liquid inlet 81. The auxiliary liquid inlet 82 can be connected to an external pipeline, and a high-purity strontium chloride solution that does not require filtration can be introduced to directly carry out evaporation and crystallization operations. The two liquid inlets can be selected according to the actual operation requirements.

[0054] Furthermore, intelligent temperature-controlled heating elements are evenly distributed on the inner wall of the purification cylinder 6.

[0055] Furthermore, the purification mechanism 7 includes:

[0056] The fixing rod group 71 is configured into four groups, which are arranged in sequence along the vertical direction on the same straight line, and a disassembly ring 72 is provided between two adjacent fixing rod groups 71. The uppermost fixing rod group 71 is connected to the inner side of the top of the cap 8 at the end away from the disassembly ring 72, and the lowermost fixing rod group 71 is connected to the bottom of the inner side of the collection tray 76 at the end away from the disassembly ring 72. The outer side of the collection tray 76 slides against the inner side wall of the purification cylinder 6.

[0057] The purification discs 73 are configured in three groups, and the inner sides of the inner walls of the three groups of purification discs 73 are sequentially connected to the three groups of fixing rods 71 ​​from top to bottom.

[0058] A heat-conducting plate 74 is disposed on the outer side of the outer wall of the three sets of purification discs 73, with its inner side penetrating through the outer wall of the purification disc 73 and its outer side slidingly attached to the inner wall of the purification cylinder 6; and

[0059] The blade component 75 is circumferentially arranged between the outer side of the inner wall and the inner side of the outer wall of the purification disk 73.

[0060] It should be noted that the disassembly ring 72 can separate the three sets of purification discs 73 and collection discs 76 into individual units, which facilitates the collection of strontium chloride products.

[0061] Furthermore, the blade element 75 includes:

[0062] A drive unit 751 is circumferentially arranged on the outer wall of the purification cylinder 6, and its output end is connected to a gear set 752; and

[0063] A connecting shaft 753 is connected to the output end of the gear set 752 and passes through the outer wall of the purification disk 73 and is connected to the blade 754. The end of the blade 754 away from the connecting shaft 753 is rotatably disposed on the outer side of the inner wall of the purification disk 73.

[0064] In a preferred embodiment, the intelligent temperature control heating element controls the temperature inside the purification cylinder 6 to reach the standard required for evaporation and crystallization. The heat-conducting plate 74 can autonomously control the opening and closing of its own heat conduction. The heat-conducting plate 74 can transfer a large amount of heat through the outer wall of the purification plate 73 to the purification plate 73, and carry out the evaporation and crystallization operation of the strontium chloride solution inside. It should be noted that the three sets of heat-conducting plates 74 from top to bottom will carry out the heat conduction operation in sequence.

[0065] Specifically, the strontium chloride solution, after undergoing multi-stage filtration, enters the purification cylinder 6 through the main inlet 81. It first falls onto the uppermost purification plate 73, where the heat-conducting plate 74 activates. At this time, the strontium chloride solution near the blade 754 on the side of the purification plate 73 and near the inner side of the outer wall of the plate evaporates and crystallizes first. After this, the heat-conducting plate 74 stops its heat-conducting operation. Then, the drive unit 751 drives the gear set 752 to rotate, causing the blade 754 to rotate slightly. Excess strontium chloride solution flows downwards through the gap between adjacent blades 754 to the purification section in the middle. The above operation is repeated on plate 73 until the heat conduction plate 74 on the bottom purification plate 73 finishes its heat conduction operation. At this time, all the strontium chloride solution will have completed the evaporation and crystallization operation. At this time, the drive unit 751 will drive the blades 754 located on the three sets of purification plates 73 to rotate at a large angle, thereby shaking and scraping off the strontium chloride product on the plate and the inner side of the outer wall of the purification plate 73. Finally, the strontium chloride product will be collected in the collection plate 76. The above-mentioned layered and graded multi-stage evaporation and crystallization operation of strontium chloride solution effectively avoids the problem of uneven particle size after crystallization due to different heating degrees at different positions in the strontium chloride solution under static state.

[0066] Furthermore, a guide membrane 10 is detachably connected between the inner walls of two adjacent purification discs 73 or between the purification disc 73 and the collection disc 76, and the connecting shaft 753 is a telescopic structure.

[0067] In this embodiment, the guide membrane 10 is provided to prevent the strontium chloride solution from entering the inner wall of the purification tray 73 during the downstream process, thus causing waste. The connecting shaft 753 is only extended and retracted to be connected to the blade 754 during evaporation and crystallization. After the evaporation and crystallization is completed, the connecting shaft 753 is disconnected from the blade 754, which makes it convenient to remove the purification mechanism 7 from the purification cylinder 6 and collect the strontium chloride product.

[0068] In practice, the staff adds a strontium chloride solution with precipitate that has already undergone pre-reaction to the inside of the filter cartridge 3. The filter cartridge 3 will then perform primary filtration, secondary filtration, and other impurity ion removal operations. Subsequently, the strontium chloride solution enters the purification cartridge 6 through the connecting pipe 9. The purification mechanism 7 will then perform evaporation and crystallization operations on the solution. After the operation is completed, the purification mechanism 7 can be pulled out with the help of the cap 8 to collect the strontium chloride product. Further separation and drying operations will then be carried out.

[0069] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-stage filtration device for purifying strontium chloride, characterized in that: include: A base (1) has a bracket (2) fixed on its left side and a support seat (4) arranged around its right circumference; a filter cylinder (3) is installed on the bracket (2); a ring seat (5) is configured in two sets and is fixedly sleeved on the middle and upper parts of the support seat (4); a purification cylinder (6) is fixed on the ring seat (5) and has a purification mechanism (7) installed inside it; a cover (8) is set at the top of the purification cylinder (6) and is connected to the purification mechanism (7); a connecting pipe (9) is connected between the filter cylinder (3) and the purification cylinder (6), and the interface between the filter cylinder (3) and the purification cylinder (6) is a retractable structure; The purification mechanism (7) includes: four sets of fixed rods (71) arranged vertically in a straight line, with a disassembly ring (72) between adjacent sets of fixed rods (71). The uppermost set of fixed rods (71) is connected to the inner side of the top of the cap (8) away from the disassembly ring (72), and the lowermost set of fixed rods (71) is connected to the bottom of the inner side of the collection tray (76). 6) The outer side slides against the inner wall of the purification cylinder (6); the purification discs (73) are configured in three groups, and the inner sides of the inner walls of the three groups of purification discs (73) are sequentially connected to the three groups of fixed rods (71) from top to bottom; the heat-conducting plate (74) is disposed on the outer side of the outer wall of the three groups of purification discs (73), and its inner side penetrates the outer wall of the purification disc (73), and its outer side slides against the inner wall of the purification cylinder (6); the blade (75) is circumferentially arranged on the outer side of the inner wall of the purification disc (73) and Between the inner and outer sides of the outer wall; the blade (75) includes: a drive unit (751), circumferentially arranged on the outer wall of the purification cylinder (6), and its output end is connected to a gear set (752); a connecting shaft (753), connected to the output end of the gear set (752) and passing through the outer wall of the purification disc (73) and connected to the blade (754), the end of the blade (754) away from the connecting shaft (753) is rotatably disposed on the outer side of the inner wall of the purification disc (73); the drive unit (751) drives The moving gear set (752) drives the blades (754) to rotate at a small angle. Excess strontium chloride solution will flow down through the gap between two adjacent blades (754) to the purification plate (73) located in the middle. After evaporation and crystallization, the drive unit (751) drives the blades (754) located on the three sets of purification plates (73) to rotate at a large angle, thereby shaking off and scraping off the strontium chloride on the plate and the inner side of the outer wall of the purification plate (73), and finally collecting it in the collection plate (76).

2. The multi-stage filtration device for strontium chloride purification according to claim 1, characterized in that: The filter cartridge (3) includes: a core tube, which is disposed inside the filter cartridge (3), and the core tube is divided into upper and lower cavities by an openable and closable connecting part, the upper side being a sediment removal cavity and the lower side being a dirt removal cavity; a diffuser mechanism (31), which is fixedly connected to the upper end of the core tube; a filter assembly (32), which is configured as two sets, respectively disposed on the inner walls of the sediment removal cavity and the dirt removal cavity, and a cavity groove is provided at the connection point; and a dirt removal port (33), which is disposed on the outer wall of the core tube and communicates with the dirt removal cavity.

3. The multi-stage filtration device for strontium chloride purification according to claim 2, characterized in that: The filter assembly (32) includes a connecting block (321), which is slidably disposed in the cavity. One end of the connecting block (321) in the vertical direction is connected to a spring (322), and the other end is connected to a telescopic member. The end of the connecting block (321) in the horizontal direction near the inside of the core cylinder is connected to a filter plate (323).

4. The multi-stage filtration device for strontium chloride purification according to claim 1, characterized in that: The cap (8) includes a main liquid inlet (81), which is located on the left side of the top of the cap (8) and is connected to the connecting pipe (9). A secondary liquid inlet (82) is located on the right side of the top of the cap (8), and a lifting part (83) is installed on the top of the cap (8).

5. The multi-stage filtration device for strontium chloride purification according to claim 1, characterized in that: Intelligent temperature control heating elements are evenly distributed on the inner wall of the purification cylinder (6).

6. The multi-stage filtration device for strontium chloride purification according to claim 1, characterized in that: A guide membrane (10) is detachably connected between the inner walls of two adjacent purification discs (73) or between the purification disc (73) and the collection disc (76), and the connecting shaft (753) is a telescopic structure.

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