A vacuum crystallizer annular overflow device
By designing an annular overflow device on the vacuum crystallizer, including an overflow coil and multiple overflow branches, the problem of overflow pipe blockage was solved, enabling timely discharge of mother liquor and stable system operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SDIC XINJIANG LUOBUPO POTASH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-31
AI Technical Summary
The existing vacuum crystallizer only has one overflow pipe, which results in slow overflow of the mother liquor, leading to blockage of the overflow pipe and affecting product yield and quality.
Design a vacuum crystallizer annular overflow device, including an annular overflow coil and multiple overflow branch pipes. The overflow branch pipes are distributed in an annular pattern between the vacuum crystallizer and the overflow coil and are connected to the overflow main pipe. A flow regulating valve and a liquid level sensor are installed. The pipes are cleaned by flushing water pipes to ensure smooth discharge of mother liquor.
The increased overflow rate reduced overflow pipe blockage, ensuring timely discharge of mother liquor and improving system stability and output.
Smart Images
Figure CN224573260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical equipment technology, and in particular to a ring overflow device for a vacuum crystallizer. Background Technology
[0002] Vacuum crystallizers, such as the DTB vacuum crystallizer, are typically equipped with overflow devices. These are core components in water-soluble potassium sulfate production systems, primarily functioning to separate the solute and solvent in a solution through a crystallization reaction under vacuum. However, in actual production, because the vacuum crystallizer only has one overflow pipe, the mother liquor overflows slowly, and the prolonged residence time of the mother liquor in the clarification overflow zone causes salt buildup in the overflow pipe, leading to blockage and preventing the overflow mother liquor from flowing out normally. This severely impacts product yield and quality. Therefore, designing a ring-shaped overflow device for the vacuum crystallizer to reduce overflow pipe blockage, promptly discharge the overflow mother liquor, and improve system stability is particularly urgent. Utility Model Content
[0003] The purpose of this invention is to provide a ring overflow device for a vacuum crystallizer to solve the problems existing in the prior art, reduce overflow pipe blockage and discharge overflow mother liquor in a timely manner, and improve system stability.
[0004] To achieve the above objectives, this utility model provides the following solution:
[0005] This utility model provides a ring overflow device for a vacuum crystallizer, comprising an overflow branch pipe, an overflow coil, and an overflow main pipe;
[0006] The overflow coil has a ring structure and is used to be sleeved on the outside of the vacuum crystallizer;
[0007] The overflow branch pipes are provided in multiple ways and are distributed in a ring between the overflow coil and the vacuum crystallizer. One end of each overflow branch pipe is connected to the vacuum crystallizer and the other end is connected to the overflow coil.
[0008] The overflow manifold is connected to the overflow coil and is used to collect and discharge the mother liquor.
[0009] Furthermore, a flow regulating valve is provided on the overflow manifold.
[0010] Furthermore, the vacuum crystallizer is equipped with a liquid level sensor.
[0011] Furthermore, the flow regulating valve is an electric regulating valve or a pneumatic regulating valve, and is linked to the liquid level sensor for control.
[0012] Furthermore, the overflow branch pipe or overflow coil is connected to a flushing water pipe for flushing out accumulated salt in the pipe.
[0013] Furthermore, each of the overflow branch pipes is equipped with a flushing water pipe.
[0014] Furthermore, the overflow branch pipe is inclined downwards, with its upper end connected to the vacuum crystallizer and its lower end connected to the overflow coil.
[0015] Furthermore, the overflow branch pipe has an angle greater than 0° and less than or equal to 30° with the horizontal plane.
[0016] Furthermore, the overflow branch pipes are evenly distributed along the circumference of the vacuum crystallizer, and the number is 4-12.
[0017] Furthermore, a flow sensor is installed inside the overflow branch pipe.
[0018] The present invention achieves the following technical advantages over the prior art:
[0019] This utility model discloses a ring-shaped overflow device for a vacuum crystallizer. A ring-shaped overflow coil is fitted onto the vacuum crystallizer, and multiple overflow branch pipes are arranged in a ring between the vacuum crystallizer and the overflow coil, connecting the two. The overflow coil is connected to the overflow main pipe. The multiple ring-shaped overflow branch pipes increase the overflow volume and speed, effectively preventing excessive retention time of the mother liquor and reducing salt formation. Simultaneously, the multiple overflow branch pipes disperse the overflow mother liquor, significantly reducing the amount of mother liquor in each overflow branch pipe compared to using a single overflow pipe, thereby reducing salt formation, effectively minimizing overflow pipe blockage, and promptly discharging the overflow mother liquor, thus improving system stability. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the structure of the annular overflow device for the vacuum crystallizer of this utility model;
[0022] Figure 2 This is a front view schematic diagram of the annular overflow device for the vacuum crystallizer of this utility model;
[0023] Figure 3 This is a top view schematic diagram of the annular overflow device of the vacuum crystallizer of this utility model;
[0024] Among them, 1. Overflow branch pipe; 2. Overflow coil; 3. Overflow main pipe; 4. Flushing pipe; 5. Flow regulating valve. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] The purpose of this invention is to provide a ring overflow device for a vacuum crystallizer to solve the problems existing in the prior art, which can reduce overflow pipe blockage and discharge overflow mother liquor in a timely manner.
[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] like Figures 1 to 3 As shown, this utility model provides a vacuum crystallizer annular overflow device, including an overflow branch pipe 1, an overflow coil 2 and an overflow main pipe 3. The overflow coil 2 is annularly sleeved on the outside of the vacuum crystallizer. Multiple overflow branch pipes 1 are annularly distributed between the overflow coil 2 and the vacuum crystallizer, connecting the two. The overflow main pipe 3 is connected to the overflow coil 2 and is used to collect and discharge the mother liquor.
[0029] In use, an annular overflow coil 2 is fitted onto the vacuum crystallizer, and multiple overflow branch pipes 1 are set up. The overflow branch pipes 1 are distributed in an annular pattern between the vacuum crystallizer and the overflow coil 2, and the two are connected. The overflow coil 2 is connected to the overflow main pipe 3. The multiple overflow branch pipes 1 distributed in an annular pattern increase the overflow volume and improve the overflow speed, effectively preventing the mother liquor from staying for too long and reducing salt formation. At the same time, multiple overflow branch pipes 1 disperse the overflow mother liquor, so that the amount of mother liquor in each overflow branch pipe 1 is greatly reduced compared to using a single overflow pipe, thereby reducing the amount of salt formation, effectively reducing overflow pipe blockage, and timely discharging of overflow mother liquor, thus improving the stability of the system.
[0030] As an example of an implementable approach, such as Figures 1 to 3 As shown, a flow regulating valve 5 is installed on the overflow manifold 3. The flow regulating valve 5 is used to regulate the overflow flow rate, thereby controlling the liquid level of the mother liquor in the vacuum crystallizer. This is suitable for different operating conditions and ensures system stability. Simultaneously, a liquid level sensor can be installed inside the vacuum crystallizer to monitor the liquid level, preventing changes in the liquid level from exceeding a preset value, which could affect product production and quality, and thus improve system stability.
[0031] As an example of implementation, the flow control valve 5 can be an electric or pneumatic control valve, which can be linked with the liquid level sensor to achieve automatic control of the liquid level and further ensure system stability.
[0032] As an example of an implementable approach, such as Figures 1 to 3 As shown, flushing water pipes 4 can be installed on overflow branch pipe 1 or overflow coil 2. The figure shows an example of installing flushing water pipes 4 on overflow branch pipe 1. By installing flushing water pipes 4, the salt deposits in the pipeline can be cleaned regularly to keep the pipeline unobstructed and ensure the stable operation of the system. In particular, by installing flushing water pipes 4 on each overflow branch pipe 1, the overflow branch pipes with more salt deposits can be cleaned in a focused manner, which can improve the cleaning efficiency and ensure the stable operation of the system.
[0033] As an example of implementation, the overflow branch pipe 1 is inclined downward from the end connected to the vacuum crystallizer, with an inclination angle greater than 0° and less than or equal to 30°. This allows the mother liquor to overflow smoothly while avoiding excessively fast and rapid overflow that could disturb the crystallization of the mother liquor in the vacuum crystallizer, thus affecting the crystallization efficiency and improving the system stability.
[0034] As an example of an implementable approach, such as Figures 1 to 3 As shown, the overflow branch pipes 1 are evenly distributed along the circumference of the vacuum crystallizer, and the number is 4-12. The figure shows an example with 6 overflow branch pipes 1. The inlets of all overflow branch pipes 1 are in the same plane, which effectively ensures the stability during overflow, reduces the disturbance to the mother liquor in the vacuum crystallizer, and improves the stability of the system.
[0035] As an example of implementation, a flow sensor is installed in the overflow branch pipe 1 to monitor the flow rate in the overflow branch pipe 1 to determine whether there is salt buildup or blockage in the pipe, so as to deal with it in a timely manner and ensure the stable operation of the system.
[0036] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A vacuum crystallizer annular overflow device, characterized in that, This includes overflow branch pipes, overflow coils, and overflow main pipes; The overflow coil has a ring structure and is used to be sleeved on the outside of the vacuum crystallizer; The overflow branch pipes are provided in multiple ways and are distributed in a ring between the overflow coil and the vacuum crystallizer. One end of each overflow branch pipe is connected to the vacuum crystallizer and the other end is connected to the overflow coil. The overflow manifold is connected to the overflow coil and is used to collect and discharge the mother liquor.
2. The annular overflow device for a vacuum crystallizer according to claim 1, characterized in that, The overflow manifold is equipped with a flow regulating valve.
3. The vacuum crystallizer annular overflow apparatus of claim 2, wherein, The vacuum crystallizer is equipped with a liquid level sensor.
4. The vacuum crystallizer annular overflow apparatus of claim 3, wherein, The flow regulating valve is an electric regulating valve or a pneumatic regulating valve, and is linked to the liquid level sensor for control.
5. The annular overflow device for a vacuum crystallizer according to claim 1, characterized in that, The overflow branch pipe or overflow coil is connected to a flushing water pipe for flushing out accumulated salt in the pipe.
6. The vacuum crystallizer annular overflow apparatus of claim 5, wherein, Each of the overflow branch pipes is equipped with a flushing water pipe.
7. The vacuum crystallizer annular overflow apparatus of claim 1, wherein, The overflow branch pipe is inclined downwards, with its upper end connected to the vacuum crystallizer and its lower end connected to the overflow coil.
8. The vacuum crystallizer annular overflow apparatus of claim 7, wherein, The overflow branch pipe has an angle greater than 0° and less than or equal to 30° with the horizontal plane.
9. The vacuum crystallizer annular overflow apparatus of claim 1, wherein, The overflow branch pipes are evenly distributed along the circumference of the vacuum crystallizer, and the number is 4-12.
10. The annular overflow device for a vacuum crystallizer according to claim 1, characterized in that, A flow sensor is installed inside the overflow branch pipe.