Ore pulp dehydration method based on lepidolite ore

Abstract

The invention relates to an ore pulp dehydration method based on lepidolite, which comprises the following steps: dehydrating lithium ore pulp through a lithium ore pulp dehydration system to obtain dehydrated lithium concentrate and first filtrate, and recycling the first filtrate; the beryllium ore pulp is dehydrated through a beryllium ore pulp dehydration system, dehydrated beryllium concentrate and second filtrate are obtained, and the second filtrate is recycled; according to the arrangement, compared with a traditional ore pulp dewatering method, the sludge treatment efficiency is improved, and the water content of dewatered sludge is reduced; and meanwhile, the transportation cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral processing engineering, in particular to a spodumene ore-based pulp dehydration method. Background Art

[0002] Currently, spodumene ore, an ore containing the mineral spodumene, contains approximately 4-5 times the water content of its solid mass after flotation. Therefore, dehydration of the concentrate is essential. Transporting undehydrated concentrate in the cold and high-altitude mining areas at an altitude of 4,600 meters is extremely difficult and increases transportation costs. In cold regions, the storage and transportation of concentrates containing high amounts of water can cause freezing. Dehydration of the concentrate is also essential for smelting. High moisture content in the concentrate not only increases smelting energy consumption but also reduces the utilization rate of the metallurgical furnace.

[0003] Traditional slurry dehydration methods include filter press dehydration and centrifugal dehydration.

[0004] Among them, filter press dewatering is to squeeze out the water in the mud through high pressure, using equipment such as plate and frame sludge dewatering machine and belt sludge dewatering machine. However, this method is suitable for intermittent operation, resulting in low sludge treatment efficiency.

[0005] Centrifugal dehydration uses the high-speed rotation of the centrifuge to generate centrifugal force to separate the solids and liquids in the slurry. However, the moisture content of the sludge after centrifugal dehydration by this method may be high, resulting in increased energy consumption for subsequent smelting and increased transportation costs. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a spodumene ore-based slurry dehydration method, which has the advantages of improving sludge treatment efficiency, reducing the moisture content of the dehydrated sludge, and at the same time reducing transportation costs.

[0007] The above-mentioned object of the present invention is achieved through the following technical solution: A method for dehydrating spodumene ore pulp, comprising the following steps:

[0008] The lithium slurry is dehydrated through a lithium slurry dehydration system to obtain dehydrated lithium concentrate and a first filtrate, and the first filtrate is recycled and reused;

[0009] The beryllium slurry is dehydrated by a beryllium slurry dehydration system to obtain dehydrated beryllium concentrate and a second filtrate, and the second filtrate is recovered and reused.

[0010] Preferably, the spodumene ore-based slurry dehydration method provided by the present invention, the lithium slurry dehydration system includes a first pump pool, a first slurry pump, a first concentrator, a second slurry pump, a first slurry stirring tank and a lithium ore filter press module, the first pump pool is connected to the first slurry pump through a first pipe, the first slurry pump is connected to the first concentrator through a second pipe, the first concentrator is connected to the second slurry pump through a third pipe, the second slurry pump is connected to the first slurry stirring tank through a fourth pipe, and the first slurry stirring tank is connected to the lithium ore filter press module.

[0011] Preferably, the spodumene ore-based pulp dehydration method provided by the present invention, wherein the lithium pulp is dehydrated by a lithium pulp dehydration system, and dehydrated lithium concentrate and a first filtrate are obtained, and the first filtrate is recycled and reused, comprising:

[0012] The lithium ore enters the first pump pool and is pumped to the first concentrator via the first slurry pump to obtain a lithium concentrate underflow;

[0013] The lithium concentrate bottom flow is pumped into the first slurry stirring tank by the second slurry pump for stirring, and filtered through the lithium ore filter press module to obtain dehydrated lithium concentrate and a first filtrate;

[0014] The dehydrated lithium concentrate is sent to the lithium concentrate warehouse for storage;

[0015] The first filtrate is further recovered and reused.

[0016] Preferably, in the spodumene ore-based slurry dehydration method provided by the present invention, the lithium ore filter press module includes a plurality of lithium ore filter press units, and the plurality of lithium ore filter press units are all connected to the first slurry stirring tank.

[0017] Preferably, the spodumene ore-based slurry dehydration method provided by the present invention, wherein the lithium concentrate concentrated bottom flow is pumped into the first slurry stirring tank by the second slurry pump for stirring, and filtered through the lithium ore filter press module to obtain the dehydrated lithium concentrate and the first filtrate, comprising:

[0018] The lithium concentrate concentrated bottom flow is pumped into the first slurry stirring tank by the second slurry pump for stirring, and is filtered through one or more lithium ore filter press units to obtain dehydrated lithium concentrate and the first filtrate.

[0019] Preferably, in the spodumene ore-based slurry dehydration method provided by the present invention, the filter press unit includes a third slurry pump, a lithium ore filter press and a lithium ore belt conveyor, the first slurry stirring tank is connected to the lithium ore filter press through the third slurry pump, and the lithium ore belt conveyor is correspondingly arranged to the lithium ore filter press;

[0020] Among them, the lithium concentrate concentrated bottom flow is pumped into the first slurry stirring tank by the second slurry pump for stirring, and is pumped into the lithium ore filter press by the third slurry pump for filtration to obtain dehydrated lithium concentrate and the first filtrate. The dehydrated lithium concentrate is sent to the lithium concentrate warehouse for storage by the lithium ore belt conveyor.

[0021] Preferably, the spodumene ore-based slurry dehydration method provided by the present invention, the beryllium slurry dehydration system includes a second pump pool, a fourth slurry pump, a second concentrator, a fifth slurry pump, a second slurry stirring tank and a beryllium ore filter press module, the second pump pool is connected to the fourth slurry pump through a first connecting pipe, the fourth slurry pump is connected to the second concentrator through a second connecting pipe, the second concentrator is connected to the fifth slurry pump through a third connecting pipe, the fifth slurry pump is connected to the second slurry stirring tank through a fourth connecting pipe, and the second slurry stirring tank is connected to the beryllium ore filter press module.

[0022] Preferably, the spodumene ore-based pulp dehydration method provided by the present invention, wherein the beryllium pulp is dehydrated by a beryllium pulp dehydration system, and a dehydrated beryllium concentrate and a second filtrate are obtained, and the second filtrate is recycled and reused, comprising:

[0023] The beryllium slurry enters the second pump pool and is pumped to the second concentrator via the fourth slurry pump to obtain a concentrated underflow of beryllium concentrate;

[0024] The concentrated bottom flow of the beryllium concentrate is pumped by the fifth slurry pump to the second slurry stirring tank for stirring, and is filtered by the beryllium filter press module to obtain dehydrated beryllium concentrate and a second filtrate;

[0025] The dehydrated beryllium concentrate is sent to the beryllium concentrate warehouse for storage;

[0026] The second filtrate is further recovered and reused.

[0027] Preferably, in the spodumene ore-based slurry dehydration method provided by the present invention, the beryllium ore filter press module includes a sixth slurry pump, a beryllium ore filter press and a beryllium ore belt conveyor, the second slurry stirring tank is connected to the beryllium ore filter press through the sixth slurry pump, and the beryllium ore filter press and the beryllium ore belt conveyor are arranged correspondingly.

[0028] Preferably, the spodumene ore-based slurry dehydration method provided by the present invention comprises: the concentrated bottom flow of the beryllium concentrate is pumped into the second slurry stirring tank by the fifth slurry pump for stirring, and filtered through the beryllium ore filter press module to obtain the dehydrated beryllium concentrate and the second filtrate, comprising:

[0029] The concentrated bottom flow of the beryllium concentrate is pumped into the second slurry stirring tank through the fifth slurry pump for stirring, and is pumped into the beryllium filter press through the sixth slurry pump for filtration to obtain dehydrated beryllium concentrate and second filtrate.

[0030] In summary, the beneficial technical effects of the present invention are as follows: the spodumene ore-based slurry dehydration method provided in the present application comprises the following steps: the lithium slurry is dehydrated through a lithium slurry dehydration system, and the dehydrated lithium concentrate and the first filtrate are obtained, and the first filtrate is recycled and reused; the beryllium slurry is dehydrated through a beryllium slurry dehydration system, and the dehydrated beryllium concentrate and the second filtrate are obtained, and the second filtrate is recycled and reused; such a setting improves the sludge treatment efficiency and reduces the moisture content of the dehydrated sludge compared with the traditional slurry dehydration method; at the same time, the transportation cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The present invention provides a flow chart of a spodumene ore-based slurry dehydration method.

[0032] Figure 2 It is a structural schematic diagram of a lithium slurry dehydration system and a beryllium slurry dehydration system in a spodumene ore-based slurry dehydration method provided in an embodiment of the present invention.

[0033] In the figure, 1. lithium slurry dehydration system; 10. first pump tank; 20. first slurry pump; 30. first thickener; 40. second slurry pump; 50. first slurry stirring tank; 60. lithium ore filter press module; 61. lithium ore filter press unit; 611. third slurry pump; 612. lithium ore filter press; 613. lithium ore belt conveyor; 70. lithium concentrate bin; 2. beryllium slurry dehydration system; 21. second pump tank; 22. fourth slurry pump; 23. second thickener; 24. fifth slurry pump; 25. second slurry stirring tank; 26. beryllium ore filter press module; 261. sixth slurry pump; 262. beryllium ore filter press; 263. beryllium ore belt conveyor; 27. beryllium concentrate bin. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below with reference to the accompanying drawings.

[0035] Reference Figure 1 and Figure 2 , is a spodumene ore-based slurry dehydration method disclosed in the present invention, comprising the following steps:

[0036] S101, the lithium slurry is dehydrated through the lithium slurry dehydration system 1, and the dehydrated lithium concentrate and the first filtrate are obtained, and the first filtrate is recycled and reused.

[0037] S102. The beryllium slurry is dehydrated through the beryllium slurry dehydration system 2 to obtain the dehydrated beryllium concentrate and the second filtrate, and the second filtrate is recycled and reused. Compared with the traditional slurry dehydration method, this arrangement improves the sludge treatment efficiency and reduces the moisture content of the dehydrated sludge; at the same time, it reduces the transportation cost.

[0038] Continue to refer to Figure 2 In this embodiment, the lithium slurry dehydration system 1 includes a first pump pool 10, a first slurry pump 20, a first thickener 30, a second slurry pump 40, a first slurry stirring tank 50 and a lithium ore filter press module 60. The first pump pool 10 is connected to the first slurry pump 20 through a first pipe, the first slurry pump 20 is connected to the first thickener 30 through a second pipe, the first thickener 30 is connected to the second slurry pump 40 through a third pipe, the second slurry pump 40 is connected to the first slurry stirring tank 50 through a fourth pipe, and the first slurry stirring tank 50 is connected to the lithium ore filter press module 60.

[0039] For example, the first slurry stirring tank 50 has a size of Φ4500×4500 mm. Of course, the first slurry stirring tank 50 may also have other sizes.

[0040] The lithium ore filter press module 60 includes a plurality of lithium ore filter press units 61 , and the plurality of lithium ore filter press units 61 are all connected to the first slurry stirring tank 50 .

[0041] Specifically, such as Figure 2 As shown, the number of lithium ore filter press units 61 is 4. Of course, the number of lithium ore filter press units 61 can also be 5 or 6.

[0042] Furthermore, in this embodiment, S101, the lithium slurry is dehydrated by the lithium slurry dehydration system 1, and the dehydrated lithium concentrate and the first filtrate are obtained, and the first filtrate is recycled and reused, including:

[0043] S1011: The lithium ore enters the first pumping pool 10 and is pumped to the first concentrator 30 via the first slurry pump 20 to obtain a lithium concentrate concentrated underflow.

[0044] S1012, the lithium concentrate bottom flow is pumped into the first slurry stirring tank 50 through the second slurry pump 40 for stirring, and is filtered through the lithium ore filter press module 60 to obtain dehydrated lithium concentrate and the first filtrate.

[0045] Among them, S1012, the concentrated bottom flow of lithium concentrate is pumped into the first slurry stirring tank 50 through the second slurry pump 40 for stirring, and is filtered through the lithium ore filter press module 60 to obtain the dehydrated lithium concentrate and the first filtrate, including: the concentrated bottom flow of lithium concentrate is pumped into the first slurry stirring tank 50 in the dehydration plant through the second slurry pump 40 for stirring, and is filtered through one or more lithium ore filter press units 61 to obtain the dehydrated lithium concentrate and the first filtrate.

[0046] It should be noted that, during use, the number of lithium ore filter press units 61 that are opened needs to be determined according to the volume of the lithium concentrate concentrated underflow in the first slurry stirring tank 50 .

[0047] When the multiple lithium ore filter press units 61 are opened at the same time, the lithium concentrate bottom flow is pumped into the first slurry stirring tank 50 through the second slurry pump 40 for stirring, and is filtered through the multiple lithium ore filter press units 61 at the same time.

[0048] In this embodiment, the filter press unit includes a third slurry pump 611, a lithium ore filter press 612 and a lithium ore belt conveyor 613. The first slurry stirring tank 50 is connected to the lithium ore filter press 612 through the third slurry pump 611, and the lithium ore belt conveyor 613 and the lithium ore filter press 612 are arranged correspondingly; wherein, the concentrated bottom flow of the lithium concentrate is pumped into the first slurry stirring tank 50 through the second slurry pump 40 for stirring, and is pumped into the lithium ore filter press 612 through the third slurry pump 611 for filtration to obtain dehydrated lithium concentrate and the first filtrate.

[0049] In this embodiment, the lithium ore filter press 612 adopts a horizontal filter press, wherein the horizontal filter press has a wide range of applications and can effectively separate solid particles from liquids; the filtration efficiency is high, because the horizontal filter press has a reasonable structural design and a large filtration area, so its filtration efficiency is high and rapid filtration can be achieved; the operation is simple, the horizontal filter press is simple to operate, easy to maintain, and easy to realize automated operation, which reduces the complexity of manual operation; energy saving and environmental protection, the horizontal filter press can realize fully enclosed operation during the filtration process, reducing liquid loss and environmental pollution, and meeting the environmental protection requirements of the mining area.

[0050] S1013, sending the dehydrated lithium concentrate to the lithium concentrate bin 70 for storage.

[0051] Specifically, the dehydrated lithium concentrate is conveyed by the lithium ore belt conveyor 613 to the lithium concentrate bin 70 for storage.

[0052] S1014. The first filtrate is further recovered and reused; such an arrangement improves the utilization rate of water resources.

[0053] Continue to refer to Figure 2In this embodiment, the beryllium slurry dehydration system 2 includes a second pump pool 21, a fourth slurry pump 22, a second thickener 23, a fifth slurry pump 24, a second slurry stirring tank 25 and a beryllium ore filter press module 26. The second pump pool 21 is connected to the fourth slurry pump 22 through a first connecting pipe, the fourth slurry pump 22 is connected to the second thickener 23 through a second connecting pipe, the second thickener 23 is connected to the fifth slurry pump 24 through a third connecting pipe, the fifth slurry pump 24 is connected to the second slurry stirring tank 25 through a fourth connecting pipe, and the second slurry stirring tank 25 is connected to the beryllium ore filter press module 26.

[0054] For example, the second slurry stirring tank 25 has a size of Φ4500×4500 mm. Of course, the second slurry stirring tank 25 may also have other sizes.

[0055] In this embodiment, the beryllium ore filter press module 26 includes a sixth slurry pump 261, a beryllium ore filter press 262 and a beryllium ore belt conveyor 263. The second slurry stirring tank 25 is connected to the beryllium ore filter press 262 through the sixth slurry pump 261, and the beryllium ore filter press 262 and the beryllium ore belt conveyor 263 are arranged correspondingly.

[0056] In this embodiment, the beryllium ore filter press 262 adopts a horizontal filter press, wherein the horizontal filter press has a wide range of applications and can effectively separate solid particles from liquids; the filtration efficiency is high, because the horizontal filter press has a reasonable structural design and a large filtration area, so its filtration efficiency is high and rapid filtration can be achieved; the operation is simple, the horizontal filter press is simple to operate, easy to maintain, and easy to realize automated operation, reducing the complexity of manual operation; energy saving and environmental protection, the horizontal filter press can realize fully enclosed operation during the filtration process, reducing liquid loss and environmental pollution, and meeting the environmental protection requirements of the mining area.

[0057] In S102, the beryllium slurry is dehydrated through the beryllium slurry dehydration system 2 to obtain the dehydrated beryllium concentrate and the second filtrate, and the second filtrate is recycled and reused, including:

[0058] S1021, the beryllium slurry enters the second pump pool 21, and is pumped to the second concentrator 23 through the fourth slurry pump 22 to obtain the concentrated underflow of beryllium concentrate.

[0059] S1022: The concentrated bottom flow of the beryllium concentrate is pumped by the fifth slurry pump 24 to the second slurry stirring tank 25 in the dewatering plant for stirring, and is filtered by the beryllium filter press module 26 to obtain the dehydrated beryllium concentrate and the second filtrate.

[0060] Among them, S1022, the concentrated bottom flow of beryllium concentrate is pumped into the second slurry stirring tank 25 through the fifth slurry pump 24 for stirring, and is filtered through the beryllium ore filter press module 26 to obtain dehydrated beryllium concentrate and the second filtrate, including: the concentrated bottom flow of beryllium concentrate is pumped into the second slurry stirring tank 25 through the fifth slurry pump 24 for stirring, and is pumped into the beryllium ore filter press 262 through the sixth slurry pump 261 for filtration to obtain dehydrated beryllium concentrate and the second filtrate.

[0061] S1023. The dehydrated beryllium concentrate is sent to the beryllium concentrate bin 27 for storage.

[0062] Specifically, the dehydrated beryllium concentrate is conveyed by the beryllium ore belt conveyor 263 to the beryllium concentrate bin 27 for storage.

[0063] S1024. The second filtrate is further recovered and reused; such an arrangement improves the utilization rate of water resources.

[0064] The spodumene ore-based slurry dehydration method provided in the present application includes the following steps: lithium slurry is dehydrated through a lithium slurry dehydration system 1, and dehydrated lithium concentrate and a first filtrate are obtained, and the first filtrate is recycled and reused; beryllium slurry is dehydrated through a beryllium slurry dehydration system 2, and dehydrated beryllium concentrate and a second filtrate are obtained, and the second filtrate is recycled and reused; such an arrangement improves the sludge treatment efficiency and reduces the moisture content of the dehydrated sludge compared with the traditional slurry dehydration method; at the same time, it reduces the transportation cost.

[0065] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0066] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A method for dehydrating slurry from spodumene ore, characterized in that: The steps include: The lithium slurry is dehydrated through a lithium slurry dehydration system to obtain dehydrated lithium concentrate and a first filtrate, and the first filtrate is recycled and reused; The beryllium slurry is dehydrated by a beryllium slurry dehydration system to obtain dehydrated beryllium concentrate and a second filtrate, and the second filtrate is recovered and reused.

2. The spodumene ore-based pulp dehydration method according to claim 1, wherein: The lithium slurry dehydration system includes a first pump pool, a first slurry pump, a first thickener, a second slurry pump, a first slurry stirring tank and a lithium ore filter press module, the first pump pool is connected to the first slurry pump through a first pipeline, the first slurry pump is connected to the first thickener through a second pipeline, the first thickener is connected to the second slurry pump through a third pipeline, the second slurry pump is connected to the first slurry stirring tank through a fourth pipeline, and the first slurry stirring tank is connected to the lithium ore filter press module.

3. The slurry dehydration method based on spodumene ore according to claim 2, characterized in that: The lithium slurry is dehydrated through a lithium slurry dehydration system to obtain dehydrated lithium concentrate and a first filtrate, and the first filtrate is recycled and reused, comprising: The lithium ore enters the first pump pool and is pumped to the first concentrator via the first slurry pump to obtain a lithium concentrate underflow; The lithium concentrate bottom flow is pumped into the first slurry stirring tank by the second slurry pump for stirring, and filtered through the lithium ore filter press module to obtain dehydrated lithium concentrate and a first filtrate; The dehydrated lithium concentrate is sent to the lithium concentrate warehouse for storage; The first filtrate is further recovered and reused.

4. The method for dehydrating a spodumene ore pulp according to claim 3, wherein: The lithium ore filter press module includes multiple lithium ore filter press units, and the multiple lithium ore filter press units are all connected to the first slurry stirring tank.

5. The method for dehydrating slurry based on spodumene ore according to claim 4, characterized in that: The lithium concentrate bottom flow is pumped into the first slurry stirring tank by the second slurry pump for stirring, and filtered through the lithium ore filter press module to obtain dehydrated lithium concentrate and a first filtrate, including: The lithium concentrate concentrated bottom flow is pumped into the first slurry stirring tank by the second slurry pump for stirring, and is filtered through one or more lithium ore filter press units to obtain dehydrated lithium concentrate and the first filtrate.

6. The method for dehydrating slurry based on spodumene ore according to claim 5, characterized in that: The filter press unit includes a third slurry pump, a lithium ore filter press and a lithium ore belt conveyor, the first slurry stirring tank is connected to the lithium ore filter press through the third slurry pump, and the lithium ore belt conveyor is correspondingly arranged to the lithium ore filter press; Among them, the lithium concentrate concentrated bottom flow is pumped into the first slurry stirring tank by the second slurry pump for stirring, and is pumped into the lithium ore filter press by the third slurry pump for filtration to obtain dehydrated lithium concentrate and the first filtrate. The dehydrated lithium concentrate is sent to the lithium concentrate warehouse for storage by the lithium ore belt conveyor.

7. The method for dehydrating slurry based on spodumene ore according to claim 1, wherein: The beryllium slurry dewatering system includes a second pump pool, a fourth slurry pump, a second thickener, a fifth slurry pump, a second slurry stirring tank and a beryllium ore filter press module, the second pump pool is connected to the fourth slurry pump through a first connecting pipe, the fourth slurry pump is connected to the second thickener through a second connecting pipe, the second thickener is connected to the fifth slurry pump through a third connecting pipe, the fifth slurry pump is connected to the second slurry stirring tank through a fourth connecting pipe, and the second slurry stirring tank is connected to the beryllium ore filter press module.

8. The method for dehydrating slurry based on spodumene ore according to claim 7, characterized in that: The beryllium slurry is dehydrated through a beryllium slurry dehydration system to obtain dehydrated beryllium concentrate and a second filtrate, and the second filtrate is recycled, comprising: The beryllium slurry enters the second pump pool and is pumped to the second concentrator via the fourth slurry pump to obtain a concentrated underflow of beryllium concentrate; The concentrated bottom flow of the beryllium concentrate is pumped by the fifth slurry pump to the second slurry stirring tank for stirring, and is filtered by the beryllium filter press module to obtain dehydrated beryllium concentrate and a second filtrate; The dehydrated beryllium concentrate is sent to the beryllium concentrate warehouse for storage; The second filtrate is further recovered and reused.

9. The method for dehydrating slurry based on spodumene ore according to claim 8, characterized in that: The beryllium ore filter press module includes a sixth slurry pump, a beryllium ore filter press and a beryllium ore belt conveyor. The second slurry stirring tank is connected to the beryllium ore filter press through the sixth slurry pump. The beryllium ore filter press and the beryllium ore belt conveyor are correspondingly arranged.

10. The method for dehydrating slurry based on spodumene ore according to claim 9, characterized in that: The concentrated bottom flow of the beryllium concentrate is pumped into the second slurry stirring tank by the fifth slurry pump for stirring, and is filtered through the beryllium filter press module to obtain dehydrated beryllium concentrate and a second filtrate, including: The concentrated bottom flow of the beryllium concentrate is pumped into the second slurry stirring tank through the fifth slurry pump for stirring, and is pumped into the beryllium filter press through the sixth slurry pump for filtration to obtain dehydrated beryllium concentrate and second filtrate.

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