A frozen crystallized sodium sulfate purification system
By designing a frozen crystalline sodium sulfate purification system including salt storage pond, trolley, grab bucket, feed hopper, feed spiral, roller screen and centrifuge, the problem of the drying method in the prior art requires a large amount of site and labor, and efficient sodium sulfate purification and separation are achieved, reducing labor intensity and cost.
Patent Information
- Application Number
- CN202421425701.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-20
AI Technical Summary
In the existing frozen crystalline sodium sulfate purification technology, the drying method requires a large amount of site and labor, which is very labor-intensive and inefficient.
A frozen crystalline sodium sulfate purification system is designed, including a salt storage pool, a trolley, a grab bucket, a feed hopper, a feed spiral, a roller screen and a centrifuge. Through the combined use of these equipment, the unified collection, separation and purification of frozen salt is achieved, reducing manual participation.
The system can effectively improve the purity of sodium sulfate, improve separation efficiency, reduce manual participation, and reduce labor intensity and cost.
Smart Images
Figure CN222723644U_ABST
Abstract
Description
Technical field:
[0001] The utility model relates to the technical field of purification of frozen crystallized sodium sulfate, in particular to a system for purifying frozen crystallized sodium sulfate. Background technology:
[0002] In chemical enterprises, there are many wastewaters containing high concentrations of sodium sulfate. Due to the high salt content, they cannot be directly treated biochemically. Therefore, multi-effect evaporation and crystallization technology is generally used to obtain anhydrous sodium sulfate solid waste, and the condensed water is reused or further treated. In recent years, with the rise of MVR heat pump evaporators, they have been highly praised for their low processing energy consumption, but since the compressor fans are all imported equipment, the investment is relatively high. Therefore, compared with evaporation crystallization, frozen crystallization has the characteristics of low cost and is more suitable for the recovery of sodium sulfate in industrial wastewater. At present, in order to improve the purity of sodium sulfate obtained by frozen crystallization, the method of spreading and drying is used to reduce its water content; however, spreading and drying requires a large site and a large amount of manpower, which is labor-intensive and inefficient. Utility model content:
[0003] The utility model aims to provide a freezing crystallization sodium sulfate purification system.
[0004] The utility model is implemented by the following technical scheme: a frozen crystallized sodium sulfate purification system, which comprises a salt accumulation pool, a crane, a grab, a feed hopper, a feed screw, a drum screen and a centrifuge, wherein the crane is arranged above the salt accumulation pool, a grab is hoisted on a mobile trolley of the crane, the feed hopper is arranged on the feed port of the feed screw, and the grab is movably arranged between the salt accumulation pool and the feed hopper; the outlet of the feed screw is communicated with the inlet of the drum screen, the upper screen outlet of the drum screen is communicated with a slag bucket, the lower screen outlet of the drum screen is communicated with the inlet of the centrifuge, the discharge port of the centrifuge is communicated with the inlet end of the conveyor belt, and the filtrate outlet of the centrifuge is communicated with the inlet of the filtrate box.
[0005] Furthermore, a drain pipe is connected to the lowest end of the feed screw, and a drain valve is installed on the drain pipe.
[0006] Furthermore, the outlet of the drain pipe is connected to the salt accumulation pool.
[0007] Furthermore, a vibrator is arranged on the side wall of the feed hopper.
[0008] The utility model has the advantages that the frozen salt discharged from the freezing crystallization system is uniformly collected and stored in a salt accumulation pool, and then moved to the feed hopper by a grab bucket, and then one side enters the drum screen and centrifuge to separate impurities and accumulated water, thereby achieving the purpose of improving the purity of sodium sulfate, and no human intervention is required in the process, which can effectively improve the separation efficiency. Description of the drawings:
[0009] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0010] Salt accumulation pool 1, overhead crane 2, mobile trolley 21, grab bucket 3, feed hopper 4, feed screw 5, drum screen 6, centrifuge 7, slag bucket 8, conveyor belt 9, filtrate box 10, vibrator 11, drain pipe 12, drain valve 13. Specific implementation method:
[0011] In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0012] like Figure 1As shown, a frozen crystallized sodium sulfate purification system includes a salt accumulation pool 1, a crane 2, a grab 3, a feed hopper 4, a feed screw 5, a drum screen 6 and a centrifuge 7. The crane 2 is arranged above the salt accumulation pool 1, the grab 3 is hoisted on the mobile trolley 21 of the crane 2, the feed hopper 4 is arranged on the feed port of the feed screw 5, and the grab 3 is movably arranged between the salt accumulation pool 1 and the feed hopper 4; the outlet of the feed screw 5 is connected to the inlet of the drum screen 6, the upper screen outlet of the drum screen 6 is connected to the slag bucket 8, the lower screen outlet of the drum screen 6 is connected to the inlet of the centrifuge 7, the discharge port of the centrifuge 7 is connected to the inlet end of the conveyor belt 9, and the filtrate outlet of the centrifuge 7 is connected to the inlet of the filtrate box 10. The frozen salt discharged from the frozen precipitation tank of the frozen crystallization system is stored in the salt accumulation tank 1, and then the grab bucket 3 is lowered by the mobile trolley 21 of the overhead crane. The grab bucket 3 grabs the crystallized salt in the salt accumulation tank 1 and is moved to the top of the feed hopper 4 by the overhead crane 2, and the crystallized salt in the grab bucket 3 is placed in the feed hopper 4; a vibrator 11 is arranged on the side wall of the feed hopper 4, and the vibrator 11 is used to vibrate the feed hopper 4, so that the accumulated salt in the feed hopper 4 can flow smoothly into the feed screw 5; the feed screw 5 is then used to send the crystallized salt in the feed hopper 4 to the drum screen 6 for screening, and the large pieces of debris screened out are sent to the slag bucket 8 for collection, and the screened water-containing crystallized salt is sent to the centrifuge 7 for brine separation; the filtrate separated by the centrifuge 7 is sent to the filtrate box 10 for collection, and the separated salt is transported to the transfer vehicle through the conveyor belt 9, and then sent to the warehouse for collection and storage by the transfer vehicle; the accumulated water in the filtrate box 10 can be sent to the feed port of the frozen crystallization system by the filtrate pump for circulation treatment. The lowest end of the feed screw 5 is connected with an emptying pipe 12, and an emptying valve 13 is installed on the emptying pipe 12. The outlet of the emptying pipe 12 is connected with the salt accumulation pool 1. When the feed screw 5 is stuck or stopped, the emptying valve 13 is opened, and the emptying valve 13 can be opened to discharge the accumulated salt in the feed screw 5 into the salt accumulation pool 1 through the emptying pipe 12 to avoid waste of materials.
[0013] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A frozen crystallized sodium sulfate purification system, characterized in that: It includes a salt accumulation pool, a crane, a grab, a feed hopper, a feed screw, a drum screen and a centrifuge. The crane is arranged above the salt accumulation pool, the grab is hoisted on the mobile trolley of the crane, the feed hopper is arranged on the feed port of the feed screw, and the grab is movably arranged between the salt accumulation pool and the feed hopper; the outlet of the feed screw is connected to the inlet of the drum screen, the upper screen outlet of the drum screen is connected to the slag bucket, the lower screen outlet of the drum screen is connected to the inlet of the centrifuge, the discharge port of the centrifuge is connected to the inlet end of the conveyor belt, and the filtrate outlet of the centrifuge is connected to the inlet of the filtrate box.
2. A frozen crystallized sodium sulfate purification system according to claim 1, characterized in that: The lowest end of the feed screw is connected with a drain pipe, and a drain valve is installed on the drain pipe.
3. A frozen crystallized sodium sulfate purification system according to claim 2, characterized in that: The outlet of the drain pipe is communicated with the salt accumulation pool.
4. A frozen crystallized sodium sulfate purification system according to any one of claims 1 to 3, characterized in that: A vibrator is arranged on the side wall of the feed hopper.