Activated carbon plate filter for decoloring dietary fiber syrup

Abstract

The utility model relates to dietary fiber production device technical field discloses dietary fiber sugar syrup decolorization uses activated carbon plate filter, and plate filter includes jar body, and sets up in the filter plate subassembly of jar body, still includes drive arrangement, the filter plate subassembly includes a plurality of filter plates, rotating lever, connecting cross bar, connecting branch, liquid discharge branch pipe, V type liquid discharge pipe, liquid discharge main pipe, the utility model discloses simple structure, convenient operation, the utility model discloses through drive arrangement drive filter plate subassembly rotation, and the movement amplitude of filter plate subassembly is greater in the rotation process, and it is more favorable to the peeling of filter residue, and the setting of spray subassembly can flush the impurity remaining on the filter screen, avoids the filter screen to be blocked in the subsequent use, guarantees the smooth operation of filtration.

Description

Technical Field

[0001] This utility model relates to the technical field of dietary fiber production equipment, and in particular to an activated carbon plate filter for decolorizing dietary fiber syrup. Background Technology

[0002] Polydextrose is a synthetic, water-soluble dietary fiber made from glucose, sorbitol, and citric acid through a polymerization reaction. Dietary fiber syrup is essentially polydextrose syrup. The decolorization process of polydextrose is a crucial step in its production, directly affecting product purity and color stability. Current technologies often use activated carbon mixed with dietary fiber syrup for decolorization, followed by filtration of the activated carbon using a filter device; plate filters are one commonly used filtration device.

[0003] Chinese utility model patent CN220989848U, entitled "Plate Filter Device," includes: a tank; several concave parts fixedly installed on the inner wall of the tank along its circumference to form an installation group, with at least two groups arranged vertically; each installation group is slidably connected to a circular ring; several strip-shaped frames are symmetrically arranged about an axis on the side of the circular ring opposite to the installation group, with the strip-shaped frames spaced apart along the circumference of the circular ring; a filter screen is installed between two symmetrically arranged strip-shaped frames and on both sides of each strip-shaped frame; a receiving cavity for liquid passage is formed between two filter screens; a strip-shaped top plate is provided at the top of the receiving cavity, and a strip-shaped bottom plate is provided at the bottom of the receiving cavity. This utility model plate filter device improves the overall structural strength and the uniformity of stress on the filter screen, greatly reducing the deformation of the filter screen, thereby ensuring the overall filtration effect.

[0004] However, when the above-mentioned device is in use, although it can drive the first connecting pipe to reciprocate in an arc in the second connecting pipe through the installation pipe when cleaning the filter residue attached to the filter screen, the amplitude of the reciprocating motion is small. Although it can shake off the filter residue on the filter screen, it cannot clean the filter screen, resulting in incomplete cleaning of the filter residue.

[0005] Therefore, there is an urgent need for activated carbon plate filters for decolorizing dietary fiber syrup to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to overcome the existing technical problems and provide an activated carbon plate filter for decolorizing dietary fiber syrup.

[0007] To achieve the above objectives, this utility model is implemented according to the following technical solution: An activated carbon plate filter for decolorizing dietary fiber syrup includes a tank and a filter plate assembly disposed within the tank. The tank includes a top cover, a tank body, and a conical bottom connected in sequence by flanges. An inlet pipe is connected to the upper part of the tank body, and a slag discharge pipe is connected to the bottom of the conical bottom. A drive device is also included. The filter plate assembly includes multiple filter plates, a rotating rod, a connecting crossbar, a connecting support rod, a drain branch pipe, a V-shaped drain pipe, and a drain main pipe; The filter plate includes a rectangular filter frame and filter screens fixedly installed on the left and right sides of the filter frame; multiple filter plates are arranged at equal intervals from left to right inside the tank body; The rotating rod passes through the upper cover, extends into the tank, and is rotatably connected to the upper cover; the bottom of the rotating rod is fixedly connected to the connecting crossbar; the bottom of the connecting crossbar is fixedly connected to multiple filter plates through the connecting support rod. The bottom of each filter plate is connected to a drain branch pipe; the tail of each drain branch pipe is connected to a V-shaped drain pipe; the bottom of the V-shaped drain pipe is connected to the main drain pipe. The bottom of the slag discharge pipe is closed, and a slag discharge branch pipe is connected to the right side of the slag discharge pipe; The main drain pipe passes through the bottom of the slag discharge pipe and is rotatably connected to the bottom of the slag discharge pipe; the main drain pipe is coaxial with the rotating rod; The drive unit rotates the filter plate assembly.

[0008] In use, this invention involves feeding a mixture of dietary fiber syrup and activated carbon into the tank through an inlet pipe. Under pressure, the activated carbon in the mixture is trapped by the filter screen, forming a filter cake. The filtered dietary fiber syrup then enters the filter chamber of the filter plate, and subsequently passes through the drain branch pipe at the bottom of the filter plate, the V-shaped drain pipe, and the main drain pipe before being discharged from the tank. As the filtration time increases, the filter cake thickness increases, leading to increased filtration resistance and higher pressure inside the tank. When the pressure reaches a certain value, the feeding of the filtrate into the tank must be stopped, and a slag discharge operation must be performed. During the slag discharge process, the drive device rotates, causing the entire filter plate assembly to rotate and dislodging the filter cake from the filter screen.

[0009] The drive unit here is a motor that can rotate in both directions. The motor drives the filter plate assembly to rotate, and the rotation speed, direction, and duration of the filter plate assembly can be selected according to actual usage requirements. The rotation process allows for a larger range of motion in the filter plate assembly, which is more conducive to the removal of filter cake.

[0010] Preferably, the filter plate assembly further includes two reinforcing rings, which are symmetrically fitted onto the outside of the plurality of filter plates; the filter plates are fixedly connected to the reinforcing rings by reinforcing rods.

[0011] The reinforcing ring makes the entire filter plate assembly more stable, ensuring smooth filtration and further extending its service life.

[0012] Preferably, it also includes a spray assembly; the spray assembly is disposed inside the filter plate; The spray assembly includes a spray pipe and multiple spray branch pipes connected to the spray pipe. The multiple spray branch pipes are symmetrically arranged on the spray pipe, and multiple nozzles are provided on the left and right sides of each spray branch pipe. The nozzles point to the corresponding filter screen. The rotating rod, connecting crossbar, and connecting support rod are all hollow tubes; the rotating rod is connected to the connecting crossbar; the connecting crossbar is connected to the connecting support pipe, and the connecting support pipe extends into the filter plate and is connected to the spray pipe; the head of the rotating rod is connected to a rotary joint.

[0013] The spray assembly is designed for easy connection to a water source via a rotary joint. Water then flows through the joint, sequentially through a rotating rod, connecting crossbar, connecting support rod, and spray pipe into the spray branch pipe. The nozzles then spray onto the corresponding filter screens, washing away any residual impurities. The nozzle design and water pressure control are existing technologies, and those skilled in the art can select appropriate options based on actual spraying needs.

[0014] Preferably, a spiral conveying blade is fixedly installed on the outer wall of the main drain pipe located inside the slag discharge pipe.

[0015] The direction of rotation of the spiral conveyor blades can be controlled by adjusting the rotation direction of the filter plate assembly. This further allows control over whether the spiral conveyor blades transport the filter residue upwards or downwards within the discharge pipe. Specifically, during the cleaning process, the filter residue can be transported upwards to prevent accumulation in the discharge pipe and thus maintain rotation. During the discharge process, the filter residue can be transported downwards and then discharged from the discharge branch pipe.

[0016] Preferably, a scraper is fixedly connected to one side of the V-shaped drain pipe via a connecting rod, and the end face of the scraper is in contact with the conical surface of the conical bottom.

[0017] The scraper can sweep the entire conical surface of the conical bottom during rotation. The scraper is designed to clean the conical bottom and prevent excessive filter residue from accumulating.

[0018] Components not specified in this invention are all made using conventional methods in the field. Those skilled in the art can select their models and installation methods according to actual usage needs, and clearly understand how to install and control them. They will not be described in detail here.

[0019] The beneficial effects of this utility model are: This invention features a simple structure and convenient operation. The filter plate assembly is driven to rotate via a drive device, resulting in a larger range of motion and facilitating the removal of filter residue. The spray assembly washes away residual impurities on the filter screen, preventing clogging and ensuring smooth filtration. The spiral conveyor blades and scraper facilitate slag discharge, preventing excessive residue buildup in the tank. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 for Figure 1 A sectional view along the EE line; Figure 3 for Figure 1 Schematic diagram of the filter plate and spray assembly; Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0021] In the diagram: 1. Top cover; 2. Tank body; 3. Conical bottom; 4. Liquid inlet pipe; 5. Slag discharge pipe; 6. Filter plate; 7. Rotating rod; 8. Connecting crossbar; 9. Connecting support rod; 10. Drainage branch pipe; 11. V-shaped drainage pipe; 12. Main drainage pipe; 13. Filter frame; 14. Filter screen; 15. Slag discharge branch pipe; 16. Motor; 17. Driving bevel gear; 18. Driven bevel gear; 19. Gearbox; 20. Reinforcing ring; 21. Reinforcing rod; 22. Spray pipe; 23. Spray branch pipe; 24. Nozzle; 25. Rotary joint; 26. Spiral conveyor blade; 27. Scraper; 28. Connecting rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0023] Example 1 like Figures 1 to 3 As shown, an activated carbon plate filter for decolorizing dietary fiber syrup includes a tank and a filter plate assembly disposed within the tank. The tank includes an upper cover 1, a tank body 2, and a conical bottom 3 connected in sequence by flanges. An inlet pipe 4 is connected to the upper part of the tank body, and a slag discharge pipe 5 is connected to the bottom of the conical bottom. A drive device is also included. The filter plate assembly includes multiple filter plates 6, a rotating rod 7, a connecting crossbar 8, a connecting support rod 9, a drain branch pipe 10, a V-shaped drain pipe 11, and a drain main pipe 12. The filter plate includes a rectangular filter frame 13 and filter screens 14 fixedly disposed on the left and right sides of the filter frame; multiple filter plates are disposed at equal distances from left to right inside the tank body. The rotating rod passes through the upper cover, extends into the tank, and is rotatably connected to the upper cover; the bottom of the rotating rod is fixedly connected to the connecting crossbar; the bottom of the connecting crossbar is fixedly connected to multiple filter plates through the connecting support rod. The bottom of each filter plate is connected to a drain branch pipe; the tail of each drain branch pipe is connected to a V-shaped drain pipe; the bottom of the V-shaped drain pipe is connected to the main drain pipe. The bottom of the slag discharge pipe is closed, and the right side of the slag discharge pipe is connected to a slag discharge branch pipe 15; The main drain pipe passes through the bottom of the slag discharge pipe and is rotatably connected to the bottom of the slag discharge pipe; the main drain pipe is coaxial with the rotating rod; The drive unit rotates the filter plate assembly.

[0024] The drive device includes a motor 16, with a driving bevel gear 17 fixedly installed on the movable end of the motor, and a driven bevel gear 18 provided on the rotating rod located above the upper cover. The driving bevel gear and the driven bevel gear mesh with each other and are protected by a gearbox 19.

[0025] The filter plate assembly also includes two reinforcing rings 20, which are symmetrically fitted around the outside of multiple filter plates; the filter plates are fixedly connected to the reinforcing rings via reinforcing rods 21.

[0026] It also includes a spray assembly; the spray assembly is disposed within the filter plate; The spray assembly includes a spray pipe 22 and multiple spray branch pipes 23 connected to the spray pipe. The multiple spray branch pipes are symmetrically arranged on the spray pipe. Multiple nozzles 24 are provided on the left and right sides of each spray branch pipe. The nozzles point to the corresponding filter screen. The rotating rod, connecting crossbar, and connecting support rod are all hollow tubes; the rotating rod is connected to the connecting crossbar; the connecting crossbar is connected to the connecting support pipe, and the connecting support pipe extends into the filter plate and is connected to the spray pipe; the head of the rotating rod is connected to a rotary joint 25.

[0027] In this embodiment, the inlet pipe, slag discharge branch pipe, rotating rod, and main drain pipe are all equipped with corresponding valves. Those skilled in the art can select the type and model of the valves according to their usage requirements.

[0028] Example 2 like Figure 4 As shown, based on Embodiment 1, this embodiment also includes a spiral conveying blade 26 and a scraper 27.

[0029] A spiral conveying blade is fixedly installed on the outer wall of the main drain pipe located inside the slag discharge pipe. A scraper is fixedly connected to one side of the V-shaped drain pipe via a connecting rod 28, and the end face of the scraper is in contact with the conical surface of the conical bottom.

[0030] The technical solution of this utility model is not limited to the specific embodiments described above. All technical modifications made based on the technical solution of this utility model shall fall within the protection scope of this utility model.

Claims

1. An activated carbon plate filter for decolorizing dietary fiber syrup, the plate filter comprising a tank body and a filter plate assembly disposed within the tank body; the tank body comprising a top cover, a tank body, and a conical bottom connected in sequence by flanges; an inlet pipe is connected to the upper part of the tank body, and a slag discharge pipe is connected to the bottom of the conical bottom; characterized in that: It also includes a drive unit, The filter plate assembly includes multiple filter plates, a rotating rod, a connecting crossbar, a connecting support rod, a drain branch pipe, a V-shaped drain pipe, and a drain main pipe; The filter plate includes a rectangular filter frame and filter screens fixedly installed on the left and right sides of the filter frame; multiple filter plates are arranged at equal intervals from left to right inside the tank body; The rotating rod passes through the upper cover, extends into the tank, and is rotatably connected to the upper cover; the bottom of the rotating rod is fixedly connected to the connecting crossbar; the bottom of the connecting crossbar is fixedly connected to multiple filter plates through the connecting support rod. The bottom of each filter plate is connected to a drain branch pipe; the tail of each drain branch pipe is connected to a V-shaped drain pipe; the bottom of the V-shaped drain pipe is connected to the main drain pipe. The bottom of the slag discharge pipe is closed, and a slag discharge branch pipe is connected to the right side of the slag discharge pipe; The main drain pipe passes through the bottom of the slag discharge pipe and is rotatably connected to the bottom of the slag discharge pipe; the main drain pipe is coaxial with the rotating rod; The drive unit rotates the filter plate assembly.

2. The activated carbon plate filter for decolorizing dietary fiber syrup according to claim 1, characterized in that: The filter plate assembly also includes two reinforcing rings, which are symmetrically fitted onto the outside of multiple filter plates; the filter plates are fixedly connected to the reinforcing rings by reinforcing rods.

3. The activated carbon plate filter for decolorizing dietary fiber syrup according to claim 1, characterized in that: It also includes a spray assembly; the spray assembly is disposed within the filter plate; The spray assembly includes a spray pipe and multiple spray branch pipes connected to the spray pipe. The multiple spray branch pipes are symmetrically arranged on the spray pipe, and multiple nozzles are provided on the left and right sides of each spray branch pipe. The nozzles point to the corresponding filter screen. The rotating rod, connecting crossbar, and connecting support rod are all hollow tubes; the rotating rod is connected to the connecting crossbar; the connecting crossbar is connected to the connecting support pipe, and the connecting support pipe extends into the filter plate and is connected to the spray pipe; the head of the rotating rod is connected to a rotary joint.

4. The activated carbon plate filter for decolorizing dietary fiber syrup according to claim 1, characterized in that: Spiral conveying blades are fixedly installed on the outer wall of the main drain pipe located inside the slag discharge pipe.

5. The activated carbon plate filter for decolorizing dietary fiber syrup according to claim 1, characterized in that: A scraper is fixedly connected to one side of the V-shaped drain pipe via a connecting rod, and the end face of the scraper is in contact with the conical surface of the conical bottom.

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