Filtering device for natamycin extraction

Abstract

The utility model relates to the field of filtering devices, in particular to a filtering device for natamycin extraction, which comprises a plurality of plate frames, each plate frame comprises a middle plate, a middle pipe is rotatably arranged in the center of each middle plate, ring frames are symmetrically propped against the two sides of each middle plate, and filtering cloth is fixed between the outer side edges of the two ring frames and the outer end of the middle pipe on the same side. A liquid leakage hole is formed between the filter cloth at the lower ends of the two ring frames and the middle plate in a penetrating manner, and a plurality of ribs are arranged on the two side surfaces of the middle plate. Opening grooves are formed in the positions, corresponding to the middle plate, of the upper ends of the two annular frames, and power wheels are rotationally arranged at the upper ends of the two annular frames and located in the opening grooves to conduct transmission on the middle plate. According to the utility model, the filter cake adhered to the filter cloth can be quickly separated.

Description

Technical Field

[0001] This utility model relates to the field of filtration devices, and more specifically to a filtration device for natamycin extraction. Background Technology

[0002] In recent years, the global natamycin market has shown a steady growth trend. With increasing consumer focus on food safety and health, and the rapid development of the food industry, the demand for natural preservatives continues to rise, driving the continuous expansion of the natamycin market.

[0003] In the production and preparation of natamycin, a filtration device is needed to filter the natamycin crystallization liquid to obtain natamycin wet powder, which is then vacuum dried to obtain natamycin. Currently, plate and frame filtration equipment is generally used for filtration. However, when separating the two plates and frames in the existing plate and frame filtration equipment, the filter cake mostly adheres to the filter cloth, which requires manual separation of the filter cake from the filter cloth, which is time-consuming and labor-intensive and affects production efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a filtration device for natamycin extraction, which can quickly separate the filter cake adhering to the filter cloth.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows:

[0006] A filtration device for natamycin extraction includes multiple plate frames. Each plate frame includes a central plate with a central tube rotating at its center. Two ring frames are symmetrically fitted to the two sides of the central plate. Filter cloth is fixed between the outer edges of the two ring frames and the outer end of the central tube on the same side. A leakage hole is provided through the filter cloth at the lower end of the two ring frames and the central plate. Multiple protruding ridges are provided on both sides of the central plate.

[0007] The outer edge of the ring frame protrudes beyond the edge of the central tube.

[0008] The ring frame has a ring groove at the location corresponding to the middle plate.

[0009] The upper ends of the two ring frames are provided with opening slots corresponding to the middle plate. The upper ends of the two ring frames are equipped with drive wheels that rotate within the opening slots to drive the middle plate.

[0010] Each ring frame has symmetrical T-shaped blocks on its left and right sides, and each pair of ring frames on each plate frame has seat blocks on the two T-shaped blocks on the same side through T-shaped slots.

[0011] Each seat block has a C-shaped plate at its upper end that provides a limiting slide, and the two side plates of the C-shaped plate can block the two ends of the T-slot.

[0012] A spring is provided between the C-shaped plate and the seat block.

[0013] The outer side of the seat block is provided with a support rod.

[0014] The support rod is fitted with a protective sleeve.

[0015] It also includes a support frame with two parallel sliding beams. The two seats of each plate frame slide on the two sliding beams respectively. One end of the support frame is fixed with a front plate. The center of the front plate is provided with a feed pipe. The feed pipe is coaxial with the middle pipe. The other end of the support frame is slidably provided with a rear plate. An electric telescopic rod is provided between the rear plate and the support frame.

[0016] The beneficial effects of this utility model are:

[0017] 1. By rotating the transmission plate between the two filter cloths, the convex ribs can be driven to push the filter cloths, causing the filter cloths to bulge outwards and the filter cake adhering to them to separate and fall off.

[0018] 2. By cooperating with the seat block and the T-block, the two ring frames of the same plate frame are limited, which makes it easier for the two adjacent plate frames to separate, and then the filter cake leaks out and falls. Attached Figure Description

[0019] Figure 1 and Figure 2 A schematic diagram of the overall structure of a filtration device for natamycin extraction;

[0020] Figure 3 This is a schematic diagram of the support frame structure;

[0021] Figure 4 This is a structural schematic diagram of a plate frame;

[0022] Figure 5 This is a sectional view of the plate frame structure.

[0023] Figure 6 This is a schematic diagram of the ring frame structure;

[0024] Figure 7 This is a structural diagram of the middle plate;

[0025] Figure 8 This is a schematic diagram of the filter cloth structure;

[0026] Figure 9 This is a schematic diagram of the seat block.

[0027] In the picture:

[0028] 1. Support frame; 2. Slide beam; 3. Front plate; 4. Feed pipe; 5. Rear plate; 6. Ring frame; 7. Ring groove; 8. T-block; 9. Drain hole; 10. Opening groove; 11. Middle plate; 12. Middle tube; 13. Protruding rib; 14. Power wheel; 15. Filter cloth; 16. Seat block; 17. T-slot; 18. C-shaped plate; 19. Support rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figure 1-9 The following is a detailed description of the filtration device for natamycin extraction:

[0031] A filtration device for natamycin extraction includes multiple plate frames. Each plate frame includes a central plate 11 with a central tube 12 rotating at its center. The two plates can rotate through a bearing or direct contact. Two ring frames 6 are symmetrically pressed against the two sides of the central plate 11. Filter cloth 15 is fixed between the outer edge of the two ring frames 6 and the outer end of the central tube 12 on the same side. A leakage hole 9 is provided through the filter cloth 15 at the lower end of the two ring frames 6 and the central plate 11. Multiple protruding ribs 13 are welded and fixed on both sides of the central plate 11.

[0032] During use, multiple plate frames will be pressed together, that is, the two ring frames 6 of two adjacent plate frames are coaxially pressed against each other, thereby forming a filter cake forming space between the two filter cloths 15 installed on the two ring frames 6. During filtration, natamycin crystals enter the filter cake forming space through the central tube 12, and natamycin powder is blocked in the filter cake forming space by the filter cloth 15. The remaining liquid passes through the filter cloth 15 and enters the ring frame 6, automatically flowing down under its own gravity, and finally flows out through the leakage hole 9, completing the filtration.

[0033] The filter cloth 15 is made of nylon, which is soft and wear-resistant. Moreover, the filter cloth 15 is in a relatively loose state between the central tube 12 and the ring frame 6. When filtering to obtain the wet powder, the filter cloth 15 will be squeezed towards the central plate 11, so that the filter cloth 15 bends and sticks to the central plate 11. When the two adjacent plate frames are opened to separate the wet powder filter cake, the central plate 11 is rotated. The central plate 11 will drive the convex rib 13 to rotate and push the inner side of the filter cloth 15 that is pressed against the central plate 11 in a circumferential direction, so that the filter cloth 15 moves outward. Then, the wet powder filter cake adhering to the outer surface of the filter cloth 15 will automatically separate and fall off the filter cloth 15, so as to quickly separate the filter cake adhering to the filter cloth.

[0034] The filter cloth 15 is in the shape of a ring plate, with ring sleeves at both its inner and outer edges, which are used to fix the middle tube 12 and the ring frame 6 respectively. The fixing method can be to tighten the ring sleeves through screws onto the middle tube 12 or the ring frame 6, and a sealing ring is provided between the two to ensure a seal. Alternatively, the ring sleeves can be glued to the middle tube 12 or the ring frame 6.

[0035] Meanwhile, in order to ensure that the filtered liquid can enter the filter cake forming space when the plate frame is clamped coaxially, the outer edge of the ring frame 6 protrudes beyond the edge of the central tube 12, so that when pressed, the edges of the two ring frames 6 press against each other, while the central tube 12 does not contact and leaves a gap.

[0036] Further:

[0037] The upper ends of the two ring frames 6 are provided with opening slots 10 corresponding to the middle plate 11. The upper ends of the two ring frames 6 are equipped with drive wheels 14, which are located in the opening slots 10 to drive the middle plate 11.

[0038] Each plate frame has two ring frames 6 with protruding plates welded to their upper ends. The power wheel 14 passes through the two protruding plates through its central shaft, rotates between the two ring frames 6, and is located in the opening slot 10. At the same time, a power motor is installed on one of the protruding plates. The output shaft of the power motor is connected to the central shaft through a coupling, thereby forming a transmission to the power wheel 14, which in turn drives the middle plate 11 to rotate.

[0039] In this case, the protruding plate without the motor installed is in a sliding state with the central shaft, so that when pressed, the two ring frames 6 on each plate frame can approach each other and simultaneously press against both sides of the middle plate 11. This clamping state can form a seal between the ring frame 6 and the middle plate 11 during filtration, preventing the filtrate from flowing out from other places. At this time, the motor cannot drive the middle plate 11 to rotate.

[0040] Meanwhile, in order to ensure the limiting between the ring frame 6 and the middle plate 11, an annular groove 7 is provided at the position of the ring frame 6 corresponding to the middle plate 11, so that both ends of the middle plate 11 are located in the annular groove 7, ensuring that the middle plate 11, the middle tube 12, and the two ring frames 6 are coaxially arranged, and the middle part of the middle plate 11 can be provided with gear teeth for the power wheel 14 to mesh, ensuring the transmission between the two.

[0041] To ensure a seal between the middle plate 11 and the ring frame 6, a sealing ring can be installed in the ring groove 7, so that when the middle plate 11 is tightened, the side of the sealing ring is pressed to seal the seal.

[0042] like Figure 4-6 As shown in Figure 8:

[0043] T-shaped blocks 8 are symmetrically welded and fixed on the left and right sides of each ring frame 6, and seat blocks 16 are fitted on the two T-shaped blocks 8 on the same side of each pair of ring frames 6 through T-shaped grooves 17.

[0044] Each seat block 16 has a C-shaped plate 18 at its upper end for limiting sliding. The two side plates of the C-shaped plate 18 can block the two ends of the T-slot 17.

[0045] Among them, a small plate is fixed at the upper end of the seat block 16, a slide rod is vertically fixed on the small plate, and a retaining ring is fixed at the other end of the slide rod. The middle part of the C-shaped plate 18 slides through the slide rod, thereby forming a limiting sliding connection of the C-shaped plate 18. The two side plates of the C-shaped plate 18 are respectively attached to the two sides of the seat block 16, thereby blocking the two ends of the T-slot 17.

[0046] The T-slot 17 on the seat block 16 limits the two T-blocks 8 on the same side, thereby limiting the two ring frames 6 and ensuring that the two ring frames 6 are coaxial. Moreover, the two side plates of the C-shaped plate 18 block the T-slot 17 at both ends, preventing the T-blocks 8 from sliding out of the T-slot 17, thereby limiting the two ring frames 6 axially. This allows the two ring frames 6 and the middle plate 11 located between them to form an integral assembly, that is, it can be moved as a whole during use, so that by pushing the seat block 16, the two adjacent plate frames can be separated, and then the wet powder filter cake can be taken out.

[0047] Moreover, when the two ends of the T-groove 17 are blocked by the C-shaped plate 18, both ring frames 6 can slide in the T-groove 17 through the T-shaped block 8, that is, a certain gap is maintained between the two ring frames 6, so that the power wheel 14 can drive the middle plate 11 to rotate when separating the wet powder filter cake.

[0048] When the two side plates of the C-shaped plate 18 do not cover the two ends of the T-slot 17, the T-block 8 can be slid out from the T-slot 17, thereby splitting the plate frame.

[0049] Further:

[0050] A spring is provided between the C-shaped plate 18 and the seat block 16. The spring is sleeved on the slide rod, and its two ends are respectively pressed against the middle of the C-shaped plate 18 and the retaining ring. Through the elastic force of the spring, the C-shaped plate 18 is pushed to move on the seat block 16 and press against the small plate, so that the two side plates of the C-shaped plate 18 are always at the two ends of the T-shaped groove 17, ensuring that the C-shaped plate 18 blocks the two ends of the T-shaped groove 17. When it is necessary to separate the two ring frames 6, push the C-shaped plate 18 so that the two side plates of the C-shaped plate 18 are away from the T-shaped groove 17, and the T-shaped block 8 can slide out of the T-shaped groove 17, thus completing the disassembly of the plate frame.

[0051] Further:

[0052] A support rod 19 is welded and fixed to the outside of the seat block 16, which facilitates the movement of the plate frame by pushing the support rod 19. A protective sleeve is provided on the support rod 19 to ensure the comfort of holding the support rod 19.

[0053] like Figure 3 As shown:

[0054] It also includes a support frame 1 with two parallel sliding beams 2. The two seat blocks 16 of each plate frame slide on the two sliding beams 2 respectively. One end of the support frame 1 is fixed with a front plate 3. The center of the front plate 3 is provided with a feed pipe 4. The feed pipe 4 is coaxially arranged with the middle pipe 12. The other end of the support frame 1 is slidably provided with a rear plate 5. An electric telescopic rod is provided between the rear plate 5 and the support frame 1.

[0055] In use, multiple plate frames slide on two sliding beams 2 via two seat blocks 16. By activating the electric telescopic rod to extend, the rear plate 5 can be pushed against the ring frame 6 of the rear plate frame, causing the plate frame to move forward on the two sliding beams 2 and gradually press against the plate frames one by one until the ring frame 6 of the frontmost plate frame presses against the front plate 3. At this time, natamycin crystallization liquid is fed in through the feed pipe 4. The natamycin crystallization liquid will enter the filter cake forming space along the middle pipe 12 and be filtered through the filter cloth 15. After the filter cake is formed to a certain size, the electric telescopic rod is controlled to retract. Then, by moving the seat block 16 to slide on the two sliding beams 2, the two adjacent plate frames are opened, and the natamycin wet powder filter cake is separated and taken out.

[0056] Of course, the above description is not a limitation of this instruction manual, and this utility model is not limited to the examples mentioned above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model are also within the protection scope of this utility model.

Claims

1. A filtration device for natamycin extraction, characterized in that: It includes multiple plate frames, each of which includes a central plate with a central tube rotating in the center. The two sides of the central plate are symmetrically fitted with ring frames. Filter cloth is fixed between the outer edge of the two ring frames and the outer end of the central tube on the same side. A leakage hole is provided through the filter cloth at the lower end of the two ring frames and the central plate. Multiple protruding ridges are provided on both sides of the central plate.

2. The filtration device according to claim 1, characterized in that: The outer edge of the ring frame protrudes beyond the edge of the central tube.

3. The filtration device according to claim 1, characterized in that: The ring frame has a ring groove at the location corresponding to the middle plate.

4. The filtration device according to claim 1, characterized in that: The upper ends of the two ring frames are provided with opening slots corresponding to the middle plate. The upper ends of the two ring frames are equipped with drive wheels that rotate within the opening slots to drive the middle plate.

5. The filtration device according to claim 4, characterized in that: Each ring frame has symmetrical T-shaped blocks on its left and right sides, and each pair of ring frames on each plate frame has seat blocks on the two T-shaped blocks on the same side through T-shaped slots.

6. The filtration device according to claim 5, characterized in that: Each seat block has a C-shaped plate at its upper end that provides a limiting slide, and the two side plates of the C-shaped plate can block the two ends of the T-slot.

7. The filtration device according to claim 6, characterized in that: A spring is provided between the C-shaped plate and the seat block.

8. The filtration device according to claim 7, characterized in that: The outer side of the seat block is provided with a support rod.

9. The filtration device according to claim 8, characterized in that: The support rod is fitted with a protective sleeve.

10. The filtration device according to claim 3, characterized in that: It also includes a support frame with two parallel sliding beams. The two seats of each plate frame slide on the two sliding beams respectively. One end of the support frame is fixed with a front plate. The center of the front plate is provided with a feed pipe. The feed pipe is coaxial with the middle pipe. The other end of the support frame is slidably provided with a rear plate. An electric telescopic rod is provided between the rear plate and the support frame.

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