A concentration apparatus for hemicellulose

Abstract

The utility model discloses a kind of concentration equipment for hemicellulose, it is related to concentration equipment technical field, including base, the top of base is fixedly installed with reaction kettle, first filter box, second filter box and evaporator, the bottom of the top of reaction kettle is equipped with the drain pipe with valve, the inside of first filter box is communicated with the inside of second filter box, the top height of first filter box is lower than the top height of second filter box, second filter box is opened with dismounting mouth at the top of one side away from first filter box, first filter box is close to reaction kettle, the side away from first filter box of second filter box is connected with evaporator by water pump and conduit, evaporator is connected with condenser outside.The utility model can effectively avoid hemicellulose concentration processing, frequent jam situation of filter mechanism in filtering device affects normal filtering work, greatly improve work efficiency, and practicality is higher.

Description

Technical Field

[0001] This utility model relates to the field of concentration equipment technology, and in particular to a concentration device for hemicellulose. Background Technology

[0002] Hemicellulose is an important component of plant fibers, but it is typically treated as waste in traditional viscose fiber production. However, through concentration processing, hemicellulose can be extracted and utilized, reducing resource waste. Specifically, hemicellulose concentration processing can recover useful components from waste liquids, reduce waste disposal costs, and provide reusable chemicals, thus lowering overall production costs. Therefore, hemicellulose concentration processing is a crucial link in the circular economy, contributing to the resource utilization of waste, reducing environmental pollution, and aligning with green development requirements. Concentrated hemicellulose can be used to prepare high-value-added products such as xylose, arabinose, and xylitol, opening up new sources of economic benefits for the viscose fiber industry.

[0003] In the concentration and processing of hemicellulose, the plant fiber raw materials (such as bamboo pulp, coconut husk, etc.) are generally first washed and crushed to improve the subsequent extraction efficiency. Then, hemicellulose is extracted under alkaline conditions (such as NaOH solution), and the extraction conditions include temperature, time, and the material-to-liquid ratio. For example, the extraction of coconut husk hemicellulose is most effective at 65℃ in a 5% NaOH solution with a material-to-liquid ratio of 1:50. This process usually requires the use of a reaction vessel. The hemicellulose in the extract is then filtered out using a filtration device. Finally, the water in the extract is evaporated using an evaporator to achieve the purpose and effect of concentrating the hemicellulose.

[0004] In the above process, after extracting hemicellulose from the mixture using an alkaline solution in a reactor, the extract needs to be discharged from the reactor and filtered through a filtration device. However, due to the large amount of solid particles in the extract, and the fact that existing filtration devices are mostly single-path filtration, a large amount of particles tend to accumulate, causing rapid blockage of the filtration mechanism. This necessitates frequent manual interruptions to clean the filtration mechanism, which significantly reduces work efficiency. Therefore, there is an urgent need for a hemicellulose concentration device to solve the above technical problems. Utility Model Content

[0005] This utility model discloses a concentration device for hemicellulose. It features a conveying mechanism that allows pulverized plant fiber raw materials to be added to a reaction vessel during operation. The reaction vessel, in conjunction with an alkaline solution, extracts hemicellulose from the mixture. After extraction, a valve at the drain pipe is opened, allowing the extract to be conveyed to a conveying cylinder. A spiral conveying rod inside the conveying cylinder blocks a large number of large particles, allowing the extract containing a small amount of smaller particles to directly enter the first filter box through a delivery pipe at the bottom of the conveying cylinder. After filtration by a filtering mechanism, it enters the second filter box. This is the main filtration path. Simultaneously, a reduction motor... The operation drives the spiral conveyor to rotate, directly transporting a large amount of particulate matter to the filtration mechanism above the second filtration box, ensuring unobstructed flow inside the conveyor cylinder. This is the secondary filtration path, allowing the extract to be filtered separately along two paths. Because of the separate filtration along the two paths, a small amount of particulate matter is less likely to accumulate and clog the filtration mechanism, thus ensuring the normal filtration of a large amount of extract without frequent manual cleaning. When a large amount of particulate matter enters the second filtration box, a small amount of extract adhering to the particulate matter can also pass through the filtration mechanism and drip onto the bottom surface of the second filtration box, greatly improving work efficiency. In summary, this solves the problems in the background technology.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model discloses a hemicellulose concentration device, comprising a base, on the top of which a reaction vessel, a first filter box, a second filter box, and an evaporator are fixedly mounted. The bottom of the top of the reaction vessel is provided with a drain pipe with a valve. The interior of the first filter box is connected to the interior of the second filter box. The top height of the first filter box is lower than the top height of the second filter box. A disassembly port is provided on the top of the side of the second filter box away from the first filter box. The first filter box is close to the reaction vessel. The side of the second filter box away from the first filter box is connected to the evaporator via a water pump and a conduit. A condenser is externally connected to the evaporator.

[0008] The conveying mechanism includes a fixed base, a conveying cylinder, a spiral conveying rod, and a reduction motor. Two fixed bases are provided, both fixedly installed on the top of the first filter box. The conveying cylinder passes through the interior of both fixed bases at an angle and is fixedly connected to them. The lower end of the conveying cylinder is closed, and the higher end is open. The spiral conveying rod is rotatably installed inside the conveying cylinder. The reduction motor is fixedly installed at one end of the conveying cylinder, and its output end is connected to the shaft end of the spiral conveying rod. The open end of the conveying cylinder is located at the top of the second filter box. The top of the conveying cylinder is connected to a drain pipe. A liquid delivery pipe is provided at the bottom of the conveying cylinder, near the closed end of the conveying cylinder, and its bottom end is connected to the top of the first filter box.

[0009] A filtration mechanism; the filtration mechanism is located inside the second filter box and at the connection point between the second filter box and the first filter box.

[0010] Furthermore, the bottom of the drain pipe is inclined toward the top of the conveying cylinder, and the inclination angle of the conveying cylinder is less than 45°.

[0011] Furthermore, a guide plate is fixedly connected to the bottom of the opening end of the conveying cylinder, and the bottom of the guide plate extends into the interior of the second filter box.

[0012] Furthermore, the spiral conveying rod does not contact the inner wall of the conveying cylinder, and the inner wall of the conveying cylinder is a smooth surface.

[0013] Furthermore, the bottom surface of the first filter box is inclined, and the bottom surface of the first filter box is inclined toward the second filter box.

[0014] Furthermore, the filtration mechanism includes a support block, a first filter plate, and a second filter plate. Multiple support blocks are provided, and all of the multiple support blocks are fixedly installed on the front and rear sides of the interior of the second filter box. The first filter plate and the second filter plate are fixedly connected, and the first filter plate and the second filter plate are combined to form an inverted L-shape. The size of the first filter plate matches the internal size of the second filter box. The bottom of the first filter plate abuts against the top of the multiple support blocks. The second filter plate is tightly fitted to the side of the second filter box that connects to the first filter box.

[0015] Furthermore, a lifting rod is fixedly connected to the top of the first filter plate, and the lifting rod is located at the center of the first filter plate.

[0016] The present invention has the following advantages over the prior art:

[0017] 1. This technical solution incorporates a conveying mechanism, allowing pulverized plant fiber raw materials to be added to the reaction vessel during operation. The reaction vessel, in conjunction with an alkaline solution, extracts hemicellulose from the mixture. After extraction, the valve at the drain pipe is opened, allowing the extract to be conveyed to the conveying mechanism. The conveying mechanism then transports the extract containing a small amount of solid particles and the large amount of solid particles to the first and second filter boxes, respectively. This dual-path filtration, combined with the filtration mechanism, prevents the main filtration path from becoming clogged and avoids frequent work stoppages for manual cleaning, significantly improving work efficiency and demonstrating high practicality.

[0018] 2. This technical solution incorporates a filtration mechanism, allowing the first filter plate to be lifted directly after filtration is complete, until its bottom is flush with the disassembly port. The first filter plate can then be moved laterally a short distance to prevent the guide plate from obstructing it. The first filter plate can then be lifted again, allowing for quick removal of both the first and second filter plates for cleaning. The disassembly operation is simple, time-saving, labor-saving, and highly efficient, further enhancing the practicality of the device. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the installation structure from another perspective of the present invention;

[0022] Figure 3 This is a schematic diagram of the sectional structure of the conveyor cylinder of this utility model.

[0023] Figure 4 An exploded view of the screw conveyor rod installation structure of this utility model;

[0024] Figure 5 This is an exploded view of the first filter plate installation structure of this utility model.

[0025] In the diagram: 1. Base; 2. Reactor; 3. First filter box; 4. Second filter box; 5. Evaporator; 6. Drain pipe; 7. Disassembly port; 8. Water pump; 9. Conduit; 10. Conveying mechanism; 1001. Fixed seat; 1002. Conveying cylinder; 1003. Screw conveyor; 1004. Gear motor; 1005. Liquid delivery pipe; 1006. Guide plate; 11. Filtration mechanism; 1101. Support block; 1102. First filter plate; 1103. Second filter plate; 1104. Lifting rod. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "surface", "side", "gap", "peripheral", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation Example 1:

[0029] Reference Figures 1-4 A device for concentrating hemicellulose includes a base 1. A reactor 2, a first filter box 3, a second filter box 4, and an evaporator 5 are fixedly installed on the top of the base 1. A drain pipe 6 with a valve is provided at the bottom of the top of the reactor 2. The interior of the first filter box 3 is connected to the interior of the second filter box 4. The top height of the first filter box 3 is lower than the top height of the second filter box 4. A disassembly port 7 is provided on the top of the side of the second filter box 4 away from the first filter box 3. The first filter box 3 is close to the reactor 2. The side of the second filter box 4 away from the first filter box 3 is connected to the evaporator 5 through a water pump 8 and a conduit 9. A condenser is connected to the outside of the evaporator 5.

[0030] The conveying mechanism 10 includes a fixed base 1001, a conveying cylinder 1002, a spiral conveying rod 1003, and a reduction motor 1004. Two fixed bases 1001 are provided, both fixedly installed on the top of the first filter box 3. The conveying cylinder 1002 passes through the interior of both fixed bases 1001 at an angle and is fixedly connected to them. The lower end of the conveying cylinder 1002 is closed, while the higher end is open. The spiral conveying rod 1003 is rotatably installed inside the conveying cylinder 1002. The reduction motor 1004 is fixedly installed... A fixed installation is mounted on one end of the conveying cylinder 1002, and the output end of the reduction motor 1004 is connected to the shaft end of the screw conveyor 1003. The open end of the conveying cylinder 1002 is located at the top of the second filter box 4. The top of the conveying cylinder 1002 is connected to the drain pipe 6. The bottom of the conveying cylinder 1002 is provided with a liquid delivery pipe 1005. The liquid delivery pipe 1005 is close to the closed end of the conveying cylinder 1002, and the bottom end of the liquid delivery pipe 1005 is connected to the top of the first filter box 3. Filtering mechanism 11; Filtering mechanism 11 is located inside the second filter box 4 and at the connection between the inside of the second filter box 4 and the first filter box 3.

[0031] The bottom of the drain pipe 6 is inclined toward the top of the conveying cylinder 1002, and the inclination angle of the conveying cylinder 1002 is less than 45°; a guide plate 1006 is fixedly connected to the bottom of the opening end of the conveying cylinder 1002, and the bottom of the guide plate 1006 extends into the interior of the second filter box 4; the spiral conveying rod 1003 does not contact the inner wall of the conveying cylinder 1002, and the inner wall of the conveying cylinder 1002 is a smooth surface; the inner bottom surface of the first filter box 3 is inclined, and the inner bottom surface of the first filter box 3 is inclined toward the second filter box 4.

[0032] In the specific implementation process, during operation, the pulverized plant fiber raw material can be added to the reaction vessel 2. The reaction vessel 2, in conjunction with an alkaline solution, extracts hemicellulose from the mixture. After extraction, the valve at the drain pipe 6 is opened, and the extract is transported to the conveying cylinder 1002 via the drain pipe 6. The spiral conveying rod 1003 inside the conveying cylinder 1002 blocks a large number of large particles, allowing the extract containing a small number of small particles to directly enter the first filter box 3 through the liquid delivery pipe 1005 at the bottom of the conveying cylinder 1002. Then, after filtration by the filtration mechanism 11, it enters the second filter box 4. This is the main filtration path. Simultaneously, the reduction motor 10... The operation of the 04 mechanism drives the spiral conveyor 1003 to rotate, which can directly transport a large amount of particulate matter to the filter mechanism 11 in the second filter box 4, ensuring that the inside of the conveyor cylinder 1002 is unobstructed. This is the secondary filtration path, which allows the extract to be filtered separately through two paths. Since a small amount of particulate matter is less likely to accumulate and clog the filter mechanism 11 when filtering through two paths, the normal filtration of a large amount of extract can be ensured without frequent manual cleaning. When a large amount of particulate matter enters the second filter box 4, a small amount of extract attached to the large amount of particulate matter can also pass through the filter mechanism 11 and drip onto the bottom surface of the second filter box 4, which greatly improves the working efficiency.

[0033] The bottom of the drain pipe 6 is inclined toward the top of the conveying cylinder 1002 to facilitate the flow of extract to the conveying cylinder 1002, and the inclination angle of the conveying cylinder 1002 is less than 45° to avoid excessive load on the geared motor 1004 and reduce its service life.

[0034] Among them, the guide plate 1006 can effectively prevent solid particles and a small amount of extract from falling and dripping onto the outside of the second filter box 4 at the opening of the conveying cylinder 1002;

[0035] The reason why the spiral conveying rod 1003 does not contact the inner wall of the conveying cylinder 1002 is to ensure that a large amount of extract can flow from the gap between the spiral conveying rod 1003 and the inner wall of the conveying cylinder 1002 to the liquid delivery pipe 1005, and then be transported to the first filter box 3 by the liquid delivery pipe 1005. The inner wall of the conveying cylinder 1002 is a smooth surface to reduce the friction between the inner wall of the conveying cylinder 1002 and the solid particles, so as to facilitate the transport of the solid particles.

[0036] The bottom surface of the first filter box 3 is inclined toward the second filter box 4 to facilitate the flow of the extract into the second filter box. Specific Implementation Example 2:

[0038] Reference Figure 3 and Figure 5In a preferred embodiment, the filtration mechanism 11 includes a support block 1101, a first filter plate 1102, and a second filter plate 1103. Multiple support blocks 1101 are provided, and multiple support blocks 1101 are fixedly installed on the front and rear sides of the interior of the second filter box 4. The first filter plate 1102 and the second filter plate 1103 are fixedly connected, and the first filter plate 1102 and the second filter plate 1103 are combined to form an inverted L-shape. The size of the first filter plate 1102 matches the internal size of the second filter box 4. The bottom of the first filter plate 1102 abuts against the top of the multiple support blocks 1101. The second filter plate 1103 is tightly fitted to the side of the second filter box 4 that communicates with the first filter box 3.

[0039] A lifting rod 1104 is fixedly connected to the top of the first filter plate 1102, and the lifting rod 1104 is located at the center of the first filter plate 1102.

[0040] In the specific implementation process, during operation, the second filter plate 1103 can intercept and filter a small amount of smaller solid particles in the extract flowing from the first filter box 3 to the second filter box 4. Since the fixed particles are small and few, the second filter plate 1103 is not easy to clog. The first filter plate 1102 can intercept a large amount of larger solid particles falling from the top of the second filter box 4. The small amount of extract attached to the large amount of particles can also pass through the filter mechanism 11 and drip onto the bottom of the second filter box 4, forming a dual-path filtration. After the filtration work is completed, the first filter plate 1102 can be lifted directly until the bottom of the first filter plate 1102 is flush with the disassembly port 7. Then the first filter plate 1102 can be moved horizontally a distance so that the guide plate 1006 will not block the first filter plate 1102. Then the first filter plate 1102 can be lifted again to quickly remove the first filter plate 1102 and the second filter plate 1103 for cleaning. The disassembly operation is simple, time-saving, labor-saving, and highly efficient.

[0041] The lifting rod 1104 is for the purpose of facilitating the installation and removal of the first filter plate 1102.

[0042] Working Principle: During operation, pulverized plant fiber raw materials are added to reaction vessel 2. Reactor 2, in conjunction with an alkaline solution, extracts hemicellulose from the mixture. After extraction, the valve at drain pipe 6 is opened, allowing the extract to be conveyed to conveying cylinder 1002. The spiral conveying rod 1003 inside conveying cylinder 1002 blocks a large number of larger particles, allowing the extract containing a small amount of smaller particles to directly enter the first filter box 3 through the delivery pipe 1005 at the bottom of conveying cylinder 1002. After filtration by the second filter plate 1103, it enters the second filter box 4. This is the main filtration path. Simultaneously, the reduction motor 1004 drives the spiral conveying rod 1003 to rotate, further reducing the amount of particulate matter... The extract is directly conveyed to the top of the first filter plate 1102 in the second filter box 4, ensuring that the inside of the conveying cylinder 1002 is unobstructed. This is the secondary filtration path, which allows the extract to be filtered separately through two paths. Since small amounts of particulate matter are less likely to accumulate and clog the second filter plate 1103 during separate filtration, the normal filtration of a large amount of extract can be ensured without frequent manual cleaning. When a large amount of particulate matter enters the second filter box 4, a small amount of extract attached to the particulate matter can also pass through the first filter plate 1102 and drip onto the bottom of the second filter box 4. Finally, the water pump 8, in conjunction with the conduit 9, transports the filtered extract to the evaporator 5 for water evaporation, achieving the purpose and effect of concentrating hemicellulose.

[0043] After the filtration is completed, the first filter plate 1102 can be lifted directly using the lifting rod 1104 until the bottom of the first filter plate 1102 is flush with the disassembly port 7. Then, the first filter plate 1102 can be moved horizontally a distance so that the guide plate 1006 does not block the first filter plate 1102. The first filter plate 1102 can then be lifted again to quickly remove the first filter plate 1102 and the second filter plate 1103 for cleaning. The disassembly operation is simple, time-saving, labor-saving, and highly efficient.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for concentrating hemicellulose, comprising a base (1), characterized in that: The base (1) is fixedly installed with a reactor (2), a first filter box (3), a second filter box (4) and an evaporator (5). The bottom of the top of the reactor (2) is provided with a drain pipe (6) with a valve. The interior of the first filter box (3) is connected to the interior of the second filter box (4). The top height of the first filter box (3) is lower than the top height of the second filter box (4). The second filter box (4) has a disassembly port (7) at the top of the side away from the first filter box (3). The first filter box (3) is close to the reactor (2). The side of the second filter box (4) away from the first filter box (3) is connected to the evaporator (5) through a water pump (8) and a conduit (9). The evaporator (5) is externally connected to a condenser. The conveying mechanism (10) includes a fixed base (1001), a conveying cylinder (1002), a spiral conveying rod (1003), and a reduction motor (1004). Two fixed bases (1001) are provided, both fixedly installed on the top of the first filter box (3). The conveying cylinder (1002) passes through the interior of the two fixed bases (1001) at an oblique angle and is fixedly connected to them. The lower end of the conveying cylinder (1002) is closed, while the higher end is open. The spiral conveying rod (1003) rotates... The geared motor (1004) is fixedly installed at one end of the conveying cylinder (1002), and the output end of the geared motor (1004) is connected to the shaft end of the screw conveyor (1003). The open end of the conveying cylinder (1002) is located at the top of the second filter box (4). The top of the conveying cylinder (1002) is connected to the drain pipe (6). The bottom of the conveying cylinder (1002) is provided with a liquid delivery pipe (1005). The liquid delivery pipe (1005) is close to the closed end of the conveying cylinder (1002), and the bottom end of the liquid delivery pipe (1005) is connected to the top of the first filter box (3). Filtering mechanism (11); the filtering mechanism (11) is located inside the second filter box (4) and at the connection between the second filter box (4) and the first filter box (3).

2. The hemicellulose concentration device according to claim 1, characterized in that: The bottom of the drain pipe (6) is inclined toward the top of the conveying cylinder (1002), and the inclination angle of the conveying cylinder (1002) is less than 45°.

3. The hemicellulose concentration device according to claim 1, characterized in that: A guide plate (1006) is fixedly connected to the bottom of the opening end of the conveying cylinder (1002), and the bottom of the guide plate (1006) extends into the interior of the second filter box (4).

4. The hemicellulose concentration device according to claim 1, characterized in that: The spiral conveyor rod (1003) does not contact the inner wall of the conveying cylinder (1002), and the inner wall of the conveying cylinder (1002) is a smooth surface.

5. The hemicellulose concentration device according to claim 1, characterized in that: The bottom surface of the first filter box (3) is inclined, and the bottom surface of the first filter box (3) is inclined toward the second filter box (4).

6. The hemicellulose concentration device according to claim 1, characterized in that: The filtration mechanism (11) includes a support block (1101), a first filter plate (1102), and a second filter plate (1103). Multiple support blocks (1101) are provided, and multiple support blocks (1101) are fixedly installed on the front and rear sides of the interior of the second filter box (4). The first filter plate (1102) and the second filter plate (1103) are fixedly connected, and the first filter plate (1102) and the second filter plate (1103) are combined to form an inverted L-shape. The size of the first filter plate (1102) matches the internal size of the second filter box (4). The bottom of the first filter plate (1102) abuts against the top of the multiple support blocks (1101). The second filter plate (1103) is closely fitted to the side of the second filter box (4) and the first filter box (3) that is connected.

7. A concentration device for hemicellulose according to claim 6, characterized in that: A lifting rod (1104) is fixedly connected to the top of the first filter plate (1102), and the lifting rod (1104) is located at the center of the first filter plate (1102).

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