Filtering device for recycling valine crude mother liquor

Abstract

The utility model relates to a filtering device, and provides a filtering device for recycling valine crude mother liquor, which comprises a support frame, a filter cartridge, end covers, a liquid inlet pipe, a return pipe, a liquid pumping pipe, a liquid discharging pipe, a spiral filter membrane, a liquid collecting pipe I and a liquid collecting pipe II, the filter cartridge is vertically arranged on the support frame, the filter cartridge is arranged in a hollow manner, the end covers are arranged at the upper end and the lower end of the filter cartridge, and the spiral filter membrane is arranged on the spiral filter membrane. A liquid pumping pipe and a liquid discharging pipe are arranged on the end covers on the upper side and the lower side respectively, pipe openings in one ends of the liquid pumping pipe and the liquid discharging pipe extend into the filter cylinder, a first liquid collecting pipe is arranged on the pipe opening in the upper end of the liquid pumping pipe, a second liquid collecting pipe is arranged on the pipe opening in the lower end of the liquid discharging pipe, a liquid inlet pipe and a backflow pipe are arranged on the upper portion and the lower portion of the side wall of the filter cylinder respectively, and a spiral filter membrane is arranged on the inner wall of the filter cylinder. According to the utility model, the spiral filter membrane is communicated with the liquid inlet pipe, so that when a liquid flow needing to be filtered is introduced into the filter cartridge, impurities in the liquid flow are blocked in the filter membrane, and the liquid flow with a certain flow speed rotationally flows and is filtered in the filter membrane, and meanwhile, the inner wall of the filter membrane can be scoured.

Description

Technical Field

[0001] The utility model relates to a filtering device, in particular to a filtering device for recycling crude valine mother liquor. Background Art

[0002] Valine crude mother liquor is a by-product produced during the valine production process, which contains rich L-valine.

[0003] Crude valine mother liquor contains not only L-valine but also other impurities and residues from the fermentation process. Direct discharge of these residues would pollute the environment. However, the L-valine contained in crude valine mother liquor can be used as animal feed or farmland fertilizer, making it valuable for practical applications. The mother liquor can be filtered and processed to extract the L-valine, reducing environmental pollution while also offsetting some production costs through the use of byproducts.

[0004] The mother liquor treatment process includes filtration, purification, refining, and crystallization drying. During the filtration stage, traditional filtration methods remove impurities in the liquid through pre-filtration and secondary filtration. However, since the liquid contains bacteria and impurities of different sizes and components, the pre-treatment filter components may not be able to effectively cope with the impact of different impurities on the filter membrane. During filtration, a large amount of impurities will adhere to the filter membrane, affecting the filtration efficiency and requiring frequent cleaning, which will have a significant negative impact on the processing efficiency and equipment life. Utility Model Content

[0005] In order to overcome the shortcomings of traditional filtration methods, impurities in the liquid are removed through pre-filtration and secondary filtration during operation. However, since the liquid contains bacteria and impurities of different sizes and components, the pre-treatment filtration components may not be able to effectively cope with the impact of different impurities on the filter membrane. During filtration, a large amount of impurities will adhere to the filter membrane, affecting the filtration efficiency and requiring frequent cleaning, which will have a significant negative impact on the processing efficiency and equipment life. The purpose is to provide a filtration device for pre-filtering the mother liquor and effectively reducing the clogging of the filter membrane for the reuse of crude valine mother liquor.

[0006] The technical solution is as follows: a filtering device for recycling crude valine mother liquor, comprising a support frame, a filter cartridge, an end cover, a liquid inlet pipe, a reflux pipe, a liquid extraction pipe, a liquid discharge pipe, a spiral filter membrane, a liquid collecting pipe 1 and a liquid collecting pipe 2. The filter cartridge is vertically installed on the support frame, and the filter cartridge is centrally arranged. End covers are provided at both upper and lower ends of the filter cartridge, and a liquid extraction pipe and a liquid discharge pipe are provided on the upper and lower end covers respectively. One end of the liquid extraction pipe and the liquid discharge pipe both extend into the interior of the filter cartridge, a liquid collecting pipe 1 is provided on the upper end of the liquid extraction pipe, and a liquid collecting pipe 2 is provided on the lower end of the discharge pipe. A liquid inlet pipe and a reflux pipe are respectively provided on the upper and lower side walls of the filter cartridge, and a spiral filter membrane is provided on the inner wall of the filter cartridge. The cross-section of the spiral filter membrane is semicircular and spirally arranged along the inner wall of the filter cartridge. The upper and lower ends of the spiral filter membrane are respectively connected to the liquid inlet pipe and the reflux pipe. The liquid from the liquid inlet pipe enters the spiral filter membrane, and the liquid not filtered by the spiral filter membrane will be discharged from the reflux pipe.

[0007] Optionally, the system also includes a filter element, a slag discharge pipe, and a control valve. A communication pipe is connected between the liquid inlet pipe and the slag discharge pipe. The communication pipe has a filter element mounted on it, and the interior of the filter element communicates with the interior of the communication pipe. A filter membrane is provided on the inner side of the upper portion of the filter element. A slag discharge pipe is connected to the side wall of the filter element. The upper portion of the communication pipe is connected to a control valve. Optionally, the system also includes a temperature control cylinder and a connector. The temperature control cylinder is wrapped around the outer surface of the filter cylinder. The interior of the temperature control cylinder is hollow and has two connectors mounted on it. Both connectors communicate with the interior of the temperature control cylinder.

[0008] Optionally, a filter element is further included. A filter element is provided inside the filter cartridge. The top of the filter element is connected to the inside of the upper end cover and is closed by the upper end cover. There is a gap between the outer wall of the filter element and the inner wall of the filter cartridge.

[0009] Optionally, a detector 9 is also included. The liquid inlet pipe is provided with a detector, which is a temperature detector, and its detection end penetrates into the liquid inlet pipe.

[0010] Optionally, multiple sets of filtering devices are provided on the support frame.

[0011] The beneficial effect is: the utility model arranges a spiral filter membrane to be connected with the liquid inlet pipe. When the liquid flow to be filtered is introduced into the filter cartridge, it will flow along the arrangement of the spiral filter membrane. The impurities in the liquid flow are blocked in the filter membrane. The liquid flow with a certain flow rate rotates and filters in the filter membrane, and can flush the inner wall of the filter membrane at the same time, effectively avoiding clogging of impurities, ensuring the treatment effect and treatment flux, and reducing the maintenance frequency.

[0012] The utility model regulates the temperature of the mother liquid during treatment by means of a temperature control unit, thereby ensuring that the temperature of the liquid during treatment is within an optimal treatment range for the liquid.

[0013] The utility model provides a reflux filter between the reflux pipe and the liquid inlet pipe to filter impurities in the reflux liquid, completes the reuse and treatment of the liquid discharged from the reflux pipe in one station, and optimizes the treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model without the bracket.

[0016] Figure 3 This is a disassembly diagram of the filtering equipment of the present invention.

[0017] Explanation of the reference numerals: 1: support frame, 2: filter cartridge, 21: end cover, 3: liquid inlet pipe, 4: reflux pipe, 41: liquid extraction pipe, 42: liquid discharge pipe, 5: spiral filter membrane, 51: liquid collecting pipe 1, 52: liquid collecting pipe 2, 6: filter element, 61: slag discharge pipe, 62: control valve, 7: temperature control cartridge, 71: connector, 8: filter element, 9: detector. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1: A filtration device for recycling crude valine mother liquor, such as Figure 1-3 As shown, it includes a support frame 1, on which a filtering device is provided. Specifically, a filter cartridge 2 is firmly provided on the support frame 1. The filter cartridge 2 adopts a center-through design to facilitate the circulation and treatment of liquid. The upper and lower ends of the filter cartridge 2 are equipped with end caps 21. These end caps 12 not only play a sealing role, but also provide installation interfaces for the liquid suction pipe 41 and the liquid discharge pipe 42. The liquid suction pipe 41 and the liquid discharge pipe 42 are respectively installed on the upper and lower end caps 21. One end of the liquid suction pipe 41 and the liquid discharge pipe 42 are both deeply inserted into the interior of the filter cartridge 2 to ensure that the liquid can be efficiently extracted and discharged. Among them, the upper end of the liquid suction pipe 41 is connected to the liquid collecting pipe 1 51 for collecting the liquid that has been preliminarily filtered; and the lower end of the liquid discharge pipe 42 is connected to the liquid collecting pipe 2 52, which is responsible for discharging impurities deposited in the filter cartridge 6 during operation or liquid during cleaning and maintenance.

[0020] A liquid inlet pipe 3 is provided at the upper part of the side wall of the filter cartridge 2, which is used to introduce the crude valine mother liquor to be treated into the filter cartridge 2, and a reflux pipe 4 is provided at the lower part of the side wall of the filter cartridge 2, which is responsible for discharging the liquid that has not been filtered by the spiral filter membrane 5 and returning it to the storage container to be filtered again, forming a closed-loop liquid flow path. It is worth mentioning that a spiral filter membrane 5 is provided on the inner wall of the filter cartridge 2, and its cross-section is semicircular and spirally arranged along the inner wall of the filter cartridge 2. This design not only increases the filtration area, but also enables the liquid flow to form a rotating flow when passing through, thereby more effectively capturing impurities. The upper and lower ends of the spiral filter membrane 5 are respectively connected to the liquid inlet pipe 3 and the reflux pipe 4, ensuring smooth flow and efficient filtration of the liquid.

[0021] When the crude valine mother liquor enters the filter cartridge 2 through the liquid inlet pipe 3, it will be introduced into the spiral filter membrane 5. Under the guidance of the spiral filter membrane 5, the liquid will flow along its spiral shape and impurities will be captured by the filter membrane during the flow. The liquid that is not captured will continue to flow and eventually be discharged through the reflux pipe 4. In this process, the liquid with a certain flow rate can flush the inner wall of the filter membrane while rotating and filtering in the filter membrane, effectively avoiding clogging by impurities and ensuring the treatment effect and treatment flux.

[0022] Among them, there are multiple sets of filtering equipment on the above-mentioned bracket, which further improves the processing efficiency of the equipment.

[0023] Example 2: Based on Example 1, Figure 2-3 As shown, the filter element 6 is also included. The liquid inlet pipe 3 and the slag discharge pipe 61 are cleverly connected by an interconnecting pipe, and the filter element 6 is installed on this interconnecting pipe. The interior of the filter element 6 is closely connected to the interior of the interconnecting pipe to ensure that the liquid can pass smoothly. A layer of fine filter membrane is provided on the inner side of the upper part of the filter element 6. This filter membrane can effectively capture particulate impurities in the liquid discharged from the reflux pipe 4. At the same time, a slag discharge pipe 61 is connected to the side wall of the filter element 6, which is used to regularly discharge impurities accumulated in the filter element 6. In order to control the flow of the liquid, a control valve 62 is also provided on the upper part of the interconnecting pipe. By adjusting the opening and closing of the control valve 62, the flow direction and flow rate of the liquid can be flexibly controlled.

[0024] When the liquid in the reflux pipe 4 flows out, it will first enter the filter element 6 through the interconnecting pipe. Here, the filter membrane on the filter element 6 will play its role to block the granular impurities in the liquid. The liquid after the impurities are removed will continue to flow through the filter element 6 and the interconnecting pipe, and finally return to the liquid inlet pipe 3 for secondary treatment. This design not only improves the purity of the liquid, but also enables the reuse and treatment of the liquid discharged from the reflux pipe 4 to be completed in one workstation, thereby optimizing the treatment process.

[0025] Furthermore, to better control the temperature during the filtration process, a temperature control cylinder 7 is wrapped around the outside of the filter cartridge 2. The interior of the temperature control cylinder 7 is hollow and equipped with two connectors 71, both of which communicate with the interior of the temperature control cylinder 7. These connectors 71 facilitate the injection or removal of a temperature-regulating medium into or out of the temperature control cylinder 7, thereby achieving precise control of the temperature within the filter cartridge 2 and ensuring that the temperature of the liquid being processed in the filter cartridge 2 remains within the optimal treatment range.

[0026] A filter element 8 is added inside the filter cartridge 2. The top of the filter element 8 is tightly connected to the inside of the upper end cover 21 and is fixed in the filter cartridge 2 by the sealing effect of the end cover 21. There is a certain gap between the outer wall of the filter element 8 and the inner wall of the filter cartridge 2. This gap provides sufficient space for the flow of liquid. The addition of the filter element 8 further improves the processing capacity and filtering effect of the filtering device.

[0027] In order to monitor the temperature of the liquid in the liquid inlet pipe 3 in real time, a detector 9 is also provided on the liquid inlet pipe 3. This detector 9 is a temperature detector 9. Its detection end is inserted into the liquid inlet pipe 3 and can accurately measure the temperature of the liquid. Through real-time monitoring by the detector 9, abnormal temperature conditions can be discovered and handled in a timely manner to ensure the smooth progress of the filtration process. At the same time, the detector 9 can be connected to the temperature control device of the tube connected to the temperature control cylinder 7 in the joint for signal connection, which helps the temperature control device to make early judgment and changes in the temperature before the temperature medium is transported according to the liquid inlet temperature.

[0028] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A filtering device for recycling crude valine mother liquor, comprising a support frame (1); It is characterized in that The filter cartridge (2) is vertically mounted on the support frame (1), and the filter cartridge (2) is provided with end caps (21) at both ends. The end caps (21) at both ends are provided with a liquid extraction pipe (41) and a liquid discharge pipe (42). One end of each end of the liquid extraction pipe (41) and the liquid discharge pipe (42) extends into the interior of the filter cartridge (2). The liquid extraction pipe (41) and the liquid discharge pipe (42) are respectively provided with end caps (21) at both ends. 1) A first liquid collecting pipe (51) is provided on the upper end of the pipe mouth, a second liquid collecting pipe (52) is provided on the lower end of the pipe mouth of the discharge pipe (42), a liquid inlet pipe (3) and a return pipe (4) are provided on the upper and lower parts of the side wall of the filter cartridge (2), respectively, a spiral filter membrane (5) is provided on the inner wall of the filter cartridge (2), the spiral filter membrane (5) has a semicircular cross section and is spirally arranged along the inner wall of the filter cartridge (2), and its upper and lower ends are respectively connected to the liquid inlet pipe (3) and the return pipe (4), so that the liquid from the liquid inlet pipe (3) enters the spiral filter membrane (5), and the liquid not filtered by the spiral filter membrane (5) is discharged from the return pipe (4).

2. The filtering device for recycling the crude valine mother liquor according to claim 1, characterized in that: The invention also includes a filter element (6), a slag discharge pipe (61) and a control valve (62). An interconnecting pipe is connected between the liquid inlet pipe (3) and the slag discharge pipe (61). The interconnecting pipe has a filter element (6). The interior of the filter element (6) is connected to the interior of the interconnecting pipe. A filter membrane is provided on the inner side of the upper part of the filter element (6). The slag discharge pipe (61) is connected to the side wall of the filter element (6). The upper part of the interconnecting pipe is connected to the control valve (62).

3. The filtering device for recycling the crude valine mother liquor according to claim 2, characterized in that: It also includes a temperature control cylinder (7) and a joint (71). The temperature control cylinder (7) is wrapped around the outside of the filter cylinder (2). The interior of the temperature control cylinder (7) is hollow and has two joints (71) provided thereon. The joints (71) are both connected to the internal space of the temperature control cylinder (7).

4. The filtering device for recycling the crude valine mother liquor according to claim 3, characterized in that: It also includes a filter element (8), the filter element (8) is provided inside the filter cartridge (2), the top of the filter element (8) is connected to the inside of the upper end cover (21), and is sealed by the upper end cover (21), and there is a gap between the outer wall of the filter element (8) and the inner wall of the filter cartridge (2).

5. The filtering device for recycling the crude valine mother liquor according to claim 4, characterized in that: The invention also comprises a detector (9), which is provided on the liquid inlet pipe (3). The detector (9) is a temperature detector (9), and its detection end penetrates into the liquid inlet pipe (3).

6. The filtering device for recycling the crude valine mother liquor according to claim 5, characterized in that: The support frame (1) is provided with multiple sets of filtering equipment.

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