光卤石分解结晶系统
By introducing a hook-type filter and a flow guide into the carnallite decomposition and crystallization system, combined with a magnetic separator and a screening component, the problem of light impurities being difficult to remove was solved, the decomposition reaction rate and the purity of the finished crystals were improved, and efficient impurity removal and material purification were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGHAI SALT LAKE IND
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-17
AI Technical Summary
In traditional carnallite decomposition and crystallization systems, light impurities such as fiber and polymer residues are difficult to remove effectively using conventional sieving devices, affecting the decomposition reaction rate and the purity of the finished crystals.
The system consists of a decomposer, crystallizer, filter, and overflow pipe. It uses a hook-type filter to capture light impurities and guides the slurry into the crystallizer through a guide section. Combined with a magnetic separator and screening components, it performs pretreatment and directional conveying to ensure impurity removal and material purity.
It effectively removes light impurities, improves the rate of carnallite crystallization reaction and the purity of the finished crystals, and optimizes the particle size distribution and decomposition reaction efficiency of the material.
Smart Images
Figure CN224506419U_ABST
Abstract
Claims
1. A sylvite decomposition crystallization system characterized by, include: The decomposer (10) includes a first housing (11) having a decomposition chamber (111). The first housing (11) has a first feed inlet (112) and a first overflow outlet (113) communicating with the decomposition chamber (111). The first feed inlet (112) is located above the first overflow outlet (113). Carnallite, mother liquor and external water source enter the decomposition chamber (111) through the first feed inlet (112). The crystallizer (20) includes a second housing (21) having a crystallization chamber (211), the top of the second housing (21) having an installation port (212) communicating with the crystallization chamber (211), the bottom of the second housing (21) having a slurry outlet (213) communicating with the crystallization chamber (211), and the second housing (21) also having a second feed port communicating with the crystallization chamber (211); The filter (30) includes a flow guide (31) and a hook-type filter (32). The flow guide (31) is disposed at the mounting port (212). The flow guide (31) has a flow guide cavity (311) and a decomposition slurry outlet (312) communicating with the bottom of the flow guide cavity (311). The decomposition slurry outlet (312) is communicating with the crystallization cavity (211). The hook-type filter (32) is disposed in the flow guide cavity (311) and is located above the decomposition slurry outlet (312) so as to hook up light impurities in the slurry in the flow guide cavity (311). An overflow pipe (40) is connected at one end to the first overflow port (113), and at the other end to the guide cavity (311) and located above the hook-type filter section (32).
2. The carnallite decomposition crystallization system of claim 1, wherein, The flow guide (31) includes a first cylinder (3111) and a second cylinder (3112). The first cylinder (3111) is arranged in a ring around the outer periphery of the second cylinder (3112). The bottom end of the first cylinder (3111) and the bottom end of the second cylinder (3112) are connected to each other. The top end of the first cylinder (3111) is open. The inner diameter of the first cylinder (3111) gradually decreases from top to bottom. The top end of the second cylinder (3112) is closed. The space enclosed by the first cylinder (3111) and the second cylinder (3112) forms the flow guide cavity (311).
3. The carnallite decomposition and crystallization system according to claim 2, characterized in that, The outer diameter of the second cylinder (3112) gradually increases from top to bottom; or, The guide section (31) also includes a bottom plate (3113), which is an annular structure. The bottom end of the first cylinder (3111) is annularly disposed on the outer periphery of the bottom plate (3113). The bottom end of the second cylinder (3112) is open, and the bottom end of the second cylinder (3112) is annularly disposed on the inner periphery of the bottom plate (3113). The decomposed slurry outlet (312) is disposed on the bottom plate (3113).
4. The carnallite decomposition crystallization system of claim 2, wherein, The hook-type filter section (32) includes: The first hook-type filter element (321) is located inside the flow guiding cavity (311), and the first hook-type filter element (321) is arranged in a ring on the inner side of the first cylinder (3111). The second hook-type filter element (322) is located inside the flow guide cavity (311). The second hook-type filter element (322) is arranged in a ring around the outer periphery of the second cylinder (3112). The bottom end of the second hook-type filter element (322) is connected to the bottom end of the first hook-type filter element (321).
5. The carnallite decomposition and crystallization system according to claim 4, characterized in that, The first hook-type filter element (321) includes a first filter screen (3211) and a plurality of first hooks (3212). The first filter screen (3211) is arranged in a ring on the first cylinder (3111), and the plurality of first hooks (3212) are arranged on the side of the first filter screen (3211) away from the first cylinder (3111). The second hook-type filter element (322) includes a second filter screen (3221) and a plurality of second hooks (3222). The second filter screen (3221) is arranged in a ring on the second cylinder (3112), and the plurality of second hooks (3222) are arranged on the side of the second filter screen (3221) away from the second cylinder (3112).
6. The carnallite decomposition and crystallization system according to claim 5, characterized in that, Each of the first hooks (3212) includes a first connecting segment (3213) and a first bending segment (3214) connected to each other, the first connecting segment (3213) and the first bending segment (3214) having an included angle, the end of the first connecting segment (3213) away from the first bending segment (3214) being connected to the first filter screen (3211), and the end of the first bending segment (3214) away from the first connecting segment (3213) extending toward the top of the first cylinder (3111); Each of the second hooks (3222) includes a second connecting segment (3223) and a second bending segment (3224) connected to each other, with an included angle between the second connecting segment (3223) and the second bending segment (3224), the end of the second connecting segment (3223) away from the second bending segment (3224) being connected to the second filter screen (3221), and the end of the second bending segment (3224) away from the second connecting segment (3223) extending toward the top of the second cylinder (3112).
7. The carnallite decomposition and crystallization system according to claim 6, characterized in that, The first hook (3212) has multiple sets, and the multiple sets of the first hook (3212) are distributed at intervals along the circumference of the first cylinder (3111). In each set, multiple first hooks (3212) are distributed at intervals from the top end to the bottom end of the first cylinder (3111). The extension direction of the first bent section (3214) of the multiple first hooks (3212) in each set is the same as the distribution direction of the multiple first hooks (3212) in that set. The second hook (3222) has multiple sets, and the multiple sets of the second hook (3222) are distributed at intervals along the circumference of the second cylinder (3112). In each set, multiple second hooks (3222) are distributed at intervals from the top end to the bottom end of the second cylinder (3112). The extension direction of the second bending segment (3224) of the multiple second hooks (3222) in each set is the same as the distribution direction of the multiple second hooks (3222) in that set.
8. The carnallite decomposition and crystallization system according to any one of claims 1 to 7, characterized in that, The diameter of the bottom of the first housing (11) gradually decreases from top to bottom, and the bottom end of the first housing (11) is provided with a heavy impurity discharge port (114) communicating with the decomposition chamber (111); or, The second housing (21) has a second overflow port (214) on its side wall that communicates with the crystallization cavity (211), and the second overflow port (214) is located near the top of the second housing (21).
9. The carnallite decomposition and crystallization system according to any one of claims 1 to 7, characterized in that, The decomposer (10) further includes a first guide tube (12) and a first stirring assembly (13). The first guide tube (12) is disposed inside the first housing (11) and coaxial with the first housing (11). A plurality of through holes are provided on the side wall of the first guide tube (12). The first stirring assembly (13) includes a first stirring part (131), which is rotatably disposed inside the first housing (11). At least a portion of the first stirring part (131) passes through the first guide tube (12). Alternatively, The crystallizer (20) further includes a flow guiding assembly (22) and a second stirring assembly (23). The flow guiding assembly (22) includes a second flow guiding cylinder (221) and a third flow guiding cylinder (222) located inside the second housing (21). The second flow guiding cylinder (221) and the third flow guiding cylinder (222) are both fixedly connected to the second housing (21). The second flow guiding cylinder (221), the third flow guiding cylinder (222), and the second housing (21) are coaxial. The third flow guiding cylinder (222) is sleeved on the second housing (21). The outer periphery of the second guide tube (221) and the third guide tube (222) form an annular cavity. Both ends of the second guide tube (221) and the third guide tube (222) are open structures in the axial direction. The second stirring assembly (23) includes a second stirring part (231), which is rotatably disposed in the second housing (21). At least part of the second stirring part (231) passes through the second guide tube (221).
10. The carnallite decomposition crystallization system of any one of claims 1 to 7, wherein, The carnallite decomposition and crystallization system also includes: Conveyor assembly (50); A magnetic separator (60) is disposed on the conveying assembly (50); A screening assembly (70) is located downstream of the conveying assembly (50). The screening assembly (70) includes a primary screening section (71) and a secondary screening section (72). The primary screening section (71) is located above the secondary screening section (72). The screening aperture of the primary screening section (71) is larger than that of the secondary screening section (72). The conveying assembly (50) conveys the material to the primary screening section (71). The oversize conveying unit (81) is disposed between the secondary screening unit (72) and the decomposer (10) to convey the oversize material of the secondary screening unit (72) through the first feed inlet (112) into the first housing (11); The undersize conveying unit (82) is disposed between the secondary screening unit (72) and the crystallizer (20) to convey the undersize of the secondary screening unit (72) through the second feed port into the second housing (21).