Oil removal system for oil-containing solution

Abstract

The utility model discloses an oil removal system for an oil-containing solution, which is characterized in that an adsorbent is fed into a filter press assembly, oil removal is carried out on the oil-containing solution through the filter press assembly, the existing activated carbon is replaced, the oil removal efficiency is high, the utilization rate of the adsorbent is high, and the oil removal effect is good. According to the main technical scheme, the oil removal system for the oil-containing solution comprises a stock solution conveying assembly, an adsorbent conveying assembly, a filter press assembly and an output assembly, the output end of the stock solution conveying assembly is connected with the input end of the filter press assembly, the output end of the adsorbent conveying assembly is connected with the input end of the filter press assembly, and the output end of the filter press assembly is connected with the output assembly. The oil removal device is mainly used for oil removal of the oil-containing stock solution.

Description

Technical Field

[0001] This utility model relates to the field of new energy materials technology, and in particular to an oil removal system for oil-containing solutions. Background Technology

[0002] In the fields of cathode material preparation or recycling of retired power batteries, most processes using nickel-cobalt intermediates or waste power batteries as raw materials employ solvent extraction for purification to produce high-quality nickel sulfate, cobalt sulfate, or lithium sulfate solutions. During the extraction process, organic phases are inevitably introduced into the resulting solution, making it difficult to meet usage requirements and necessitating degreasing treatment.

[0003] Currently, activated carbon is the preferred method for oil removal as it is simple and effective. However, with the increasing application and usage of activated carbon, the production costs of enterprises have increased significantly, and the waste activated carbon generated has been defined as hazardous waste. Its disposal has become a new problem for pollution control for more and more enterprises.

[0004] Therefore, proposing a new oil removal method to replace activated carbon oil removal has become a problem that enterprises need to solve in order to save energy, reduce consumption, and alleviate environmental pressure. Utility Model Content

[0005] In view of this, this utility model provides an oil removal system for oily solutions, mainly to solve the problem of high cost of activated carbon oil removal.

[0006] To achieve the above objectives, this utility model mainly provides the following technical solutions:

[0007] This utility model provides an oil removal system for oily solutions, comprising:

[0008] The raw liquid delivery assembly (10), the adsorbent delivery assembly (20), the filter press assembly (30), and the output assembly (40);

[0009] The output end of the raw liquid delivery component (10) is connected to the input end of the filter press component (30), the output end of the adsorbent delivery component (20) is connected to the input end of the filter press component (30), and the output end of the filter press component (30) is connected to the output component (40).

[0010] The adsorbent delivery assembly (20) includes an adsorbent mixing tank (21) and a second power component (22);

[0011] The input end of the adsorbent mixing tank (21) is connected to the adsorbent input device and the water source, and the adsorbent input device is used to provide at least diatomaceous earth adsorbent;

[0012] The output end of the adsorbent mixing tank (21) is connected to the input end of the second power unit (22), and the output end of the second power unit (22) is connected to the input end of the filter press assembly (30).

[0013] The raw liquid delivery assembly (10) includes a raw liquid storage tank (11) and a first power component (12);

[0014] The input end of the raw liquid storage tank (11) is used to input raw liquid, and the output end of the raw liquid storage tank (11) is connected to the input end of the first power component (12), and the output end of the first power component (12) is connected to the input end of the filter press assembly (30).

[0015] The raw liquid delivery assembly (10) also includes a first precision filter (13), the two ends of which are connected to the output end of the first power component (12) and the input end of the filter press assembly (30), respectively.

[0016] The filter press assembly includes at least one filter press;

[0017] The output end of the raw liquid delivery component (10) and the output end of the adsorbent delivery component (20) are both connected to the input end of the filter press, and the output end of the filter press is connected to the output component (40).

[0018] The filter press assembly (30) includes a first filter press (31), a second filter press (32), an intermediate tank (33), and a fourth power unit (34);

[0019] The output end of the raw liquid delivery assembly (10) is connected to the input end of the first filter press (31), the output end of the first filter press (31) is connected to the input end of the intermediate tank (33), the first output end of the intermediate tank (33) is connected to the input end of the fourth power unit (34), the output end of the fourth power unit (34) is connected to the input end of the second filter press (32), the output end of the adsorbent delivery assembly (20) is connected to the input end of the first filter press (31) and the input end of the second filter press (32), and the output end of the second filter press (32) is connected to the output assembly (40).

[0020] The filter press assembly also includes a fifth power component (35);

[0021] The output end of the raw liquid delivery assembly (10) is also connected to the input end of the second filter press (32), the second output end of the intermediate tank (33) is connected to the input end of the fifth power unit (35), and the output end of the fifth power unit (35) is connected to the output assembly (40).

[0022] Among them, the first power component (12) of the raw liquid delivery component (10) is a filter press pump, and the second power component (22) of the adsorbent delivery component (20), the fourth power component (34) and the fifth power component (35) of the filter press component (30) are all diaphragm pumps.

[0023] The output component (40) includes a finished product tank (41) and a third power component (42). The output end of the finished product tank (41) is connected to the input end of the third power component (42), and the output end of the third power component (42) is used to discharge the degreased liquid.

[0024] The output component (40) also includes a second precision filter (43), the input end of which is connected to the output end of the third power component (42), and the output end of the second precision filter (43) is used to output the degreased liquid.

[0025] This invention proposes an oil removal system for oily solutions. The system primarily uses an adsorbent delivery assembly to feed the adsorbent into a filter press assembly, directly filling the filter press. The filter press assembly then removes the large amount of oil from the oily solution to meet application requirements. By using an adsorbent instead of activated carbon, the system achieves high oil removal efficiency, high adsorbent utilization, and excellent oil removal effect. It also offers advantages such as high efficiency, environmental friendliness, and sustainable oil removal. Furthermore, it is simple to operate, low in cost, requires simple equipment, and is easy to apply on a large scale. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of an oil removal system for an oil-containing solution provided in an embodiment of the present invention. Detailed Implementation

[0027] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation, structure, features, and effects of an oil removal system for an oil-containing solution proposed according to this utility model.

[0028] like Figure 1 As shown, this embodiment of the present invention provides an oil removal system for oily solutions, comprising:

[0029] The raw liquid delivery assembly (10), the adsorbent delivery assembly (20), the filter press assembly (30), and the output assembly (40);

[0030] The output end of the raw liquid delivery component (10) is connected to the input end of the filter press component (30), the output end of the adsorbent delivery component (20) is connected to the input end of the filter press component (30), and the output end of the filter press component (30) is connected to the output component (40).

[0031] The adsorbent delivery assembly (20) is used to deliver adsorbent to the filter press assembly (30). The adsorbent can be a variety of substances that adsorb oil components in the raw liquid, such as diatomaceous earth. The filter press assembly (30) includes at least one filter press. The filter press is a commonly used solid-liquid separation device. The filter press includes multiple filter plates arranged in parallel. Filter cloth is installed on both sides of the filter plates. A closed filtration space is formed between every two filter plates. After the adsorbent is first injected into the closed filtration space, under the feeding pressure, the adsorbent remains in the closed filtration space and slowly forms a filter cake. After the oily raw liquid is injected, the oil passes through the adsorbent and remains in the closed filtration space. The solution is separated from the filter pores through the filter cloth, thereby achieving oil-water separation. Before the oil removal process begins, an adsorbent is introduced into the filter press assembly (30), such as a mixture of diatomaceous earth and water. After passing through the filter press, the diatomaceous earth adsorbent is directly added to the filter press, while excess water is discharged through the output assembly (40). Then, the oily raw liquid is sent into the filter press assembly (30) through the raw liquid conveying assembly (10). The oily raw liquid is then pressed through the filter press, and the oil components are adsorbed by the diatomaceous earth added to the filter press. The oil-removed solution is then sent out through the output assembly (40), thereby removing a large amount of oil contained in the oily raw liquid to meet the usage requirements.

[0032] The filter press assembly (30) may contain only a single filter press or multiple filter presses. These multiple filter presses can be used in parallel, i.e., simultaneously for oil removal, or they can be used in series, i.e., each subsequent filter press further removes oil from the oil-removed liquid output from the previous filter press to achieve a better oil removal effect. More specific embodiments will be described in detail later. It is worth noting that all connections mentioned in this application are pipe connections, i.e., connected and interconnected via pipes. Valves are installed on the pipes to control whether the pipes are open or closed as needed. Pipe connections are undoubtedly known and achievable by those skilled in the art, and will not be elaborated upon here.

[0033] This invention proposes an oil removal system for oily solutions. The system primarily uses an adsorbent delivery assembly to feed the adsorbent into a filter press assembly, directly filling the filter press. The filter press assembly then removes the large amount of oil from the oily solution to meet application requirements. By using an adsorbent instead of activated carbon, the system achieves high oil removal efficiency, high adsorbent utilization, and excellent oil removal effect. It also offers advantages such as high efficiency, environmental friendliness, and sustainable oil removal. Furthermore, it is simple to operate, low in cost, requires simple equipment, and is easy to apply on a large scale.

[0034] In one embodiment, the adsorbent delivery assembly (20) includes an adsorbent mixing tank (21) and a second power unit (22). The input end of the adsorbent mixing tank (21) is connected to an adsorbent input device and a water source, the adsorbent input device being used to provide at least diatomaceous earth (02) and the water source being used to provide water (03). The output end of the adsorbent mixing tank (21) is connected to the input end of the second power unit (22), and the output end of the second power unit (22) is connected to the input end of the filter press assembly (30).

[0035] The adsorbent mixing tank (21) is used to mix diatomaceous earth (02) and water (03), so that the diatomaceous earth is delivered to the filter press assembly (30) in a solid-liquid mixture. The adsorbent mixing tank (21) may further include a tank body and a stirring device installed on the tank body. The stirring device is used to stir the diatomaceous earth (02) and water (03) as they are fed into the tank body, so that the diatomaceous earth (02) and water (03) are fully mixed. The second power component (22) is a diaphragm pump. The diaphragm pump relies on the back-and-forth movement of a diaphragm to change the volume of the working chamber to draw in and discharge the diatomaceous earth mixture. The diaphragm pump has good throughput performance and can pump viscous liquids containing particles, such as diatomaceous earth mixtures. It is also small in size, easy to move, has fewer vulnerable parts, and is easy to maintain.

[0036] In one embodiment, the raw liquid delivery assembly (10) includes a raw liquid storage tank (11) and a first power unit (12). The input end of the raw liquid storage tank (11) is used to input oil-containing raw liquid (01), the output end of the raw liquid storage tank (11) is connected to the input end of the first power unit (12), and the output end of the first power unit (12) is connected to the input end of the filter press assembly (30).

[0037] The raw material storage tank (11) is used to store the oil-containing raw material (01), thereby enabling continuous and centralized filtration of the oil-containing raw material (01) and avoiding instability in the delivery of the oil-containing raw material (01). The first power component (12) is a filter press pump, which works in conjunction with the filter press in the filter press assembly (30) to deliver the oil-containing raw material to the filter press. The filter press pump can automatically switch between high flow rate and low pressure and low flow rate and high pressure as the feed resistance changes, and is suitable for conveying slurry materials containing solid particles, such as oil-containing raw material (01).

[0038] In one embodiment, the raw liquid delivery assembly (10) further includes a first precision filter (13), the two ends of which are connected to the output end of the first power unit (12) and the input end of the filter press assembly (30), respectively.

[0039] That is, after the oily raw liquid passes through the first precision filter (13), it is sent into the filter press assembly (30). The precision filter is also called the security filter. It includes tubular filter elements such as PP melt-blown, wire-burned, pleated, titanium filter element, and activated carbon filter element as filter elements. It can be selected according to the specific situation of the oily raw liquid to achieve the initial filtration of the oily raw liquid.

[0040] In one embodiment, the output component (40) includes a finished product tank (41) and a third power component (42). The input end of the finished product tank (41) is connected to the output end of the filter press component (30), and the output end of the finished product tank (41) is connected to the input end of the third power component (42). The output end of the third power component (42) is used to discharge the degreased liquid (04).

[0041] The finished product tank (41) is used for temporary storage of the degreased liquid (04). The third power unit (42) can be directly or indirectly connected to the oil-using system, so that the degreased liquid (04) can be used as needed. In one embodiment, the output component (40) further includes a second precision filter (43). The input end of the second precision filter (43) is connected to the output end of the third power unit (42), and the output end of the second precision filter (43) is used to output the degreased liquid (04). The second precision filter (43) and the first precision filter (13) can be the same type of precision filter to further filter the degreased liquid (04).

[0042] As mentioned above, the filter press assembly (30) may include a single filter press, or the filter press assembly may include multiple filter presses. The multiple filter presses may process the oily raw liquid in parallel, or they may be connected in series for multi-stage sequential processing of the raw liquid. Examples are given below:

[0043] Firstly, the filter press assembly (30) includes a first filter press (31), a second filter press (32), an intermediate tank (33), and a fourth power unit (34). The output end of the raw liquid conveying assembly (10), or the first precision filter (13), is connected to the input end of the first filter press (31). The output end of the first filter press (31) is connected to the input end of the intermediate tank (33). The first output end of the intermediate tank (33) is connected to the input end of the fourth power unit (34). The output end of the fourth power unit (34) is connected to the input end of the second filter press (32). The output end of the adsorbent conveying assembly (20), or the second power unit (22), is connected to the input ends of the first filter press (31) and the second filter press (32), respectively. The output end of the second filter press (32) is connected to the output assembly (40), or the finished product tank (41).

[0044] Diatomaceous earth is simultaneously fed into the first filter press (31) and the second filter press (32). The oily raw liquid is first de-oiled through the first filter press (31). After preliminary de-oiling, the liquid is transferred through the intermediate tank (33) to the second filter press (32) for secondary de-oiling, and then the final de-oiled liquid is output to the finished product tank (41). This secondary de-oiling achieves better de-oiling effect.

[0045] Secondly, the filter press assembly (30) may include a single filter press. For example, the filter press assembly (30) may only include the aforementioned first filter press (31) or second filter press (32). The output end of the raw liquid conveying assembly (10) or the first precision filter (13) and the output end of the adsorbent conveying assembly (20) or the second power component (22) are both connected to the input end of the first filter press (31) or the second filter press (32). The output end of the first filter press (31) or the second filter press (32) is connected to the output assembly (40) or the finished product tank (41), thereby realizing the filtration of oily solution by a single filter press.

[0046] Thirdly, the filter press assembly (30) can also include a first filter press (31) and a second filter press (32). The output end of the raw liquid conveying assembly (10), or the first precision filter (13), is simultaneously connected to the input ends of the first filter press (31) and the second filter press (32). The output end of the adsorbent conveying assembly (20), or the second power component (22), is simultaneously connected to the input ends of the first filter press (31) and the second filter press (32). The output ends of the first filter press (31) and the second filter press (32) are both connected to the output assembly (40), or the finished product tank (41), so that the first filter press (31) and the second filter press (32) can be used in parallel to remove oil from the oily solution, thereby improving production efficiency.

[0047] Fourth, such as Figure 1As shown, the filter press assembly (30) includes a first filter press (31), a second filter press (32), an intermediate tank (33), a fourth power unit (34), and a fifth power unit (35). The output end of the raw liquid conveying assembly (10), or the first precision filter (13), is simultaneously connected to the input ends of the first filter press (31) and the second filter press (32). The output end of the first filter press (31) is connected to the input end of the intermediate tank (33), and the first output end of the intermediate tank (33) is connected to the input end of the fourth power unit (34). The output end of component (34) is connected to the input end of the second filter press (32). The output end of the adsorbent conveying component (20) or the second power component (22) is connected to the input end of the first filter press (31) and the input end of the second filter press (32). The output end of the second filter press (32) is connected to the output component (40) or the finished product tank (41). The second output end of the intermediate tank (33) is connected to the input end of the fifth power component (35). The output end of the fifth power component (35) is connected to the output component (40) or the finished product tank (41).

[0048] In this embodiment, by opening and closing the valves and power components on each connecting pipe, any one of the aforementioned three implementation methods can be achieved. The working mode can be switched as needed to realize multiple oil removal modes of a single system. For example, the fifth power component (35) can be closed, and the valve of the connecting pipe between the raw liquid conveying component (10) and the input end of the second filter press (32) can be closed to achieve secondary filtration of the oily raw liquid. Alternatively, the fourth power component (34) can be closed, the fifth power component (35) can be opened, and the valve of the connecting pipe between the raw liquid conveying component (10) and the input end of the second filter press (32) can be closed. After the oily raw liquid is removed by the first filter press (31), it enters the intermediate tank (33) and is then sent to the finished product tank (41) and discharged, realizing the independent use of the first filter press (31). Further examples will not be listed here. In addition, the filling process of diatomaceous earth ensures that the mixture of diatomaceous earth and water can pass through the first filter press (31) and / or the second filter press (32), which can also be achieved by adjusting the power components and the valves of the connecting pipes, which will not be elaborated here.

[0049] In one embodiment, the fourth power component (34) and the fifth power component (35) of the filter press assembly (30) are both diaphragm pumps, which have similar advantages and features to the aforementioned diaphragm pumps.

[0050] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An oil removal system for oily solutions, characterized in that, include: The raw liquid delivery assembly (10), the adsorbent delivery assembly (20), the filter press assembly (30), and the output assembly (40); The output end of the raw liquid delivery component (10) is connected to the input end of the filter press component (30), the output end of the adsorbent delivery component (20) is connected to the input end of the filter press component (30), and the output end of the filter press component (30) is connected to the output component (40).

2. The oil removal system for oily solutions according to claim 1, characterized in that, The adsorbent delivery assembly (20) includes an adsorbent mixing tank (21) and a second power component (22); The input end of the adsorbent mixing tank (21) is connected to the adsorbent input device and the water source, and the adsorbent input device is used to provide at least diatomaceous earth; The output end of the adsorbent mixing tank (21) is connected to the input end of the second power unit (22), and the output end of the second power unit (22) is connected to the input end of the filter press assembly (30).

3. The oil removal system for oily solutions according to claim 1, characterized in that, The raw liquid delivery assembly (10) includes a raw liquid storage tank (11) and a first power component (12); The input end of the raw liquid storage tank (11) is used to input oily raw liquid, and the output end of the raw liquid storage tank (11) is connected to the input end of the first power component (12), and the output end of the first power component (12) is connected to the input end of the filter press assembly (30).

4. The oil removal system for oily solutions according to claim 3, characterized in that, The raw liquid delivery assembly (10) further includes a first precision filter (13), the two ends of which are connected to the output end of the first power component (12) and the input end of the filter press assembly (30), respectively.

5. The oil removal system for oily solutions according to claim 1, characterized in that, The filter press assembly (30) includes at least one filter press; The output end of the raw liquid delivery component (10) and the output end of the adsorbent delivery component (20) are both connected to the input end of the filter press, and the output end of the filter press is connected to the output component (40).

6. The oil removal system for oily solutions according to claim 1, characterized in that, The filter press assembly (30) includes a first filter press (31), a second filter press (32), an intermediate tank (33), and a fourth power unit (34); The output end of the raw liquid delivery assembly (10) is connected to the input end of the first filter press (31), the output end of the first filter press (31) is connected to the input end of the intermediate tank (33), the first output end of the intermediate tank (33) is connected to the input end of the fourth power unit (34), the output end of the fourth power unit (34) is connected to the input end of the second filter press (32), the output end of the adsorbent delivery assembly (20) is connected to the input ends of the first filter press (31) and the second filter press (32) respectively, and the output end of the second filter press (32) is connected to the output assembly (40).

7. The oil removal system for oily solutions according to claim 6, characterized in that, The filter press assembly (30) also includes a fifth power component (35); The output end of the raw liquid delivery assembly (10) is also connected to the input end of the second filter press (32), the second output end of the intermediate tank (33) is connected to the input end of the fifth power unit (35), and the output end of the fifth power unit (35) is connected to the output assembly (40).

8. The oil removal system for oily solutions according to claim 1, characterized in that, The first power component (12) of the raw liquid delivery assembly (10) is a filter press pump, and the second power component (22) of the adsorbent delivery assembly (20), the fourth power component (34) and the fifth power component (35) of the filter press assembly (30) are all diaphragm pumps.

9. The oil removal system for oily solutions according to claim 1, characterized in that, The output component (40) includes a finished product tank (41) and a third power component (42). The output end of the finished product tank (41) is connected to the input end of the third power component (42), and the output end of the third power component (42) is used to discharge the degreased liquid.

10. The oil removal system for oily solutions according to claim 9, characterized in that, The output component (40) further includes a second precision filter (43), the input end of which is connected to the output end of the third power component (42), and the output end of the second precision filter (43) is used to output the degreased liquid.

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