A rectification purification equipment for preparing high-end bamboo vinegar

Abstract

The utility model relates to the technical field of biomass chemical product purification, disclose a kind of rectification purification equipment for preparing high-end bamboo vinegar, including crude bamboo vinegar storage tank, rectifying column, condenser, reflux tank, first activated carbon adsorption tank and the dismounting assembly being arranged in the inside of tank body, the dismounting assembly includes the first fixed block being fixed with tank body inner wall, slidable connecting block, activated carbon plate being fixed on connecting block and movable limit rod.The utility model solves the problem of complicated and time-consuming replacement of activated carbon by improved dismounting assembly, achieving quick and convenient maintenance;Combined with optimized rectification and adsorption process, effectively solves the problem of equipment blockage and high energy consumption, can continuously and stably produce high-end bamboo vinegar with excellent quality, significantly reduces the comprehensive production cost.

Description

Technical Field

[0001] This utility model relates to the field of biomass chemical product purification technology, and in particular to a distillation purification device for preparing high-end bamboo vinegar. Background Technology

[0002] Bamboo vinegar is a natural byproduct recovered during the pyrolysis of bamboo. It is rich in hundreds of active ingredients such as organic acids, phenols, and alcohols, and has shown great application value in agriculture, environmental protection, and daily chemical industries. However, directly collected crude bamboo vinegar contains a high amount of soluble tar, resulting in a dark color, strong odor, and unstable composition, which greatly limits its development and application in the high-end market. Therefore, it must undergo effective purification treatment.

[0003] To improve the quality of bamboo vinegar, the industry typically employs multi-stage treatment methods. Preliminary treatments, such as settling and filtration, can only remove some insoluble impurities, with limited effectiveness. Further, distillation can separate most of the high-boiling-point tar components; however, traditional distillation equipment for bamboo vinegar is not only energy-intensive but also prone to coking inside the tower and on the heat exchanger surface due to tar polymerization, frequently causing equipment blockages and forcing production interruptions, making long-term, stable, continuous production difficult.

[0004] To produce a higher quality product, the distilled bamboo vinegar liquor needs to be adsorbed by activated carbon to deeply remove residual trace amounts of tar and pigments. During this process, activated carbon, being a consumable material, quickly becomes saturated and ineffective, requiring frequent replacement. Traditional adsorption equipment involves complex procedures for replacing activated carbon, consuming significant manpower and time, and disrupting the entire production line. This results in high overall costs for producing high-quality bamboo vinegar liquor, failing to meet the market's continued demand for high-quality, low-cost products.

[0005] Therefore, this utility model proposes a distillation and purification device for preparing high-end bamboo vinegar to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems existing in the distillation and purification equipment used to prepare high-end bamboo vinegar, such as difficulty in continuous and stable operation due to easy clogging, high energy consumption, poor deep purification effect leading to unstable product quality, and high overall production cost, this utility model aims to provide a distillation and purification equipment for preparing high-end bamboo vinegar with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a distillation and purification device for preparing high-end bamboo vinegar, including a crude bamboo vinegar storage tank, a feed pump, a distillation column, a reboiler, a column bottom pump, a condenser, a reflux tank, a reflux pump, a first valve, a first activated carbon adsorption tank, and a high-end bamboo vinegar storage tank; and a disassembly assembly is provided inside the first activated carbon adsorption tank.

[0008] The outlet pipe of the coarse bamboo vinegar storage tank is connected to the inlet of the feed pump, the outlet of the feed pump is connected to the inlet of the distillation column, the reboiler heat exchanger is connected to the bottom of the distillation column, the inlet of the bottom pump is connected to the bottom outlet of the distillation column, the top outlet of the distillation column is connected to the inlet of the condenser, the outlet of the condenser is connected to the inlet of the reflux tank, one outlet of the reflux tank is connected to the reflux port of the distillation column through the reflux pump, and the other outlet is connected to the inlet of the first activated carbon adsorption tank through the first valve, and the outlet of the first activated carbon adsorption tank is connected to the inlet of the high-end bamboo vinegar storage tank.

[0009] The disassembly assembly includes a first fixing block, an activated carbon plate, a connecting block, and a limiting rod, all fixedly connected to the outer wall of the first activated carbon adsorption tank. The connecting block is slidably connected to the first fixing block, and the activated carbon plate is fixedly installed on the connecting block. A first slot is provided on the connecting block. The limiting rod is movably installed on the first activated carbon adsorption tank. In the first position, the rod body is engaged in the first slot to lock the connecting block, and in the second position, the rod body disengages from the first slot to unlock the connecting block.

[0010] Preferably, the device further includes a second activated carbon adsorption tank and a second valve. The first activated carbon adsorption tank and the second activated carbon adsorption tank are arranged in parallel. The outlet of the reflux tank is also connected to the inlet of the second activated carbon adsorption tank through the second valve. Through this parallel structure, the two adsorption tanks can work alternately, thereby ensuring the continuity of the production process.

[0011] Preferably, the disassembly assembly further includes a second fixing block fixedly connected to the outer wall of the first activated carbon adsorption tank, a fixing seat fixedly connected to the first fixing block, a fixing plate fixedly connected to the limiting rod, and a spring sleeved on the limiting rod; one end of the spring abuts against the fixing plate, and the other end abuts against the fixing seat; a second slot is provided on the second fixing block, and when the limiting rod is in the second position, the fixing plate and the fixing seat cooperate to squeeze the spring, and the rod body of the limiting rod is inserted into the second slot of the second fixing block, thereby stably holding the limiting rod in the unlocked position.

[0012] Preferably, when the limiting rod is in the first position, the spring force drives the limiting rod to engage with the first slot of the connecting block, forming a self-locking structure to prevent the connecting block from sliding accidentally; more preferably, the second slot on the second fixing block is an L-shaped slot, which includes a vertical guide slot section and a horizontal holding slot section. This structure makes it easy for the operator to pull the limiting rod up and rotate it to hold it, which is labor-saving and reliable in positioning.

[0013] Preferably, the first fixing block is provided with a guide rail structure for the connecting block to slide, so as to ensure the smooth and stable pulling process of the connecting block; the outer end of the connecting block is provided with a handle for pulling operation, and the connecting block is formed as a frame structure for accommodating the activated carbon plate. The activated carbon plate is detachably installed in the frame structure of the connecting block. This design makes it easy to replace only the failed activated carbon plate, effectively reducing maintenance costs.

[0014] This utility model has the following beneficial effects: 1. This utility model solves the technical problems of easy clogging of purification equipment leading to continuous production failure and high energy consumption in the prior art by adopting a structured packed distillation column designed specifically for materials prone to coking and integrating a heat pump system to recover the latent heat of condensation at the top of the column. It achieves the technical effect of enabling the system to operate stably for a long time and significantly reducing production costs.

[0015] 2. This utility model solves the problem of cumbersome, time-consuming and labor-intensive process of replacing adsorption materials in the prior art by setting a disassembly assembly including a sliding connecting block, a spring and a limiting rod inside the activated carbon adsorption tank. It achieves the technical effect of quickly and safely replacing activated carbon plates, shortening equipment maintenance time and improving operational convenience.

[0016] 3. This utility model solves the problems of difficulty in deeply removing tar and color from bamboo vinegar and unstable product quality in the prior art by organically combining two processes: preliminary purification by distillation and deep adsorption by activated carbon in parallel. It achieves the technical effect of efficient purification in a step-by-step manner and stable production of high-end bamboo vinegar with excellent quality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a distillation and purification device for preparing high-end bamboo vinegar according to the present invention. Figure 2 This is a schematic diagram of the reflux tank part of a distillation and purification device for preparing high-end bamboo vinegar, as proposed in this utility model. Figure 3 This is a schematic diagram of the first activated carbon adsorption tank of a distillation and purification device for preparing high-end bamboo vinegar, as proposed in this utility model. Figure 4This is a schematic diagram of the activated carbon plate structure of a distillation and purification device for preparing high-end bamboo vinegar according to the present invention. Figure 5 for Figure 4 Enlarged view of point A in the image.

[0018] Legend: 1. Coarse bamboo vinegar storage tank; 2. Feed pump; 3. Distillation column; 4. Bottom pump; 5. Condenser; 6. First valve; 7. First activated carbon adsorption tank; 8. Disassembly assembly; 801. First fixing block; 802. Second fixing block; 803. Activated carbon plate; 804. Connecting block; 805. Limiting rod; 806. Fixing seat; 807. Spring; 808. Fixing plate; 9. Second activated carbon adsorption tank; 10. Second valve; 11. Reflux tank; 12. Reflux pump; 13. Reboiler; 14. High-end bamboo vinegar storage tank. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] Example: Please refer to Figures 1 to 5 This utility model provides a distillation and purification device for preparing high-end bamboo vinegar, which aims to solve the problems of cumbersome replacement process of activated carbon adsorbent material and inconvenient operation that lead to production interruption in the prior art.

[0021] like Figure 1As shown, the distillation and purification equipment for preparing high-end bamboo vinegar includes a crude bamboo vinegar storage tank 1, a feed pump 2, a distillation column 3, a reboiler 13, a bottom pump 4, a condenser 5, a reflux tank 11, a reflux pump 12, a first valve 6, a first activated carbon adsorption tank 7, and a high-end bamboo vinegar storage tank 14. The outlet pipe of the crude bamboo vinegar storage tank 1 is connected to the inlet of the feed pump 2, and the outlet of the feed pump 2 is connected to the inlet of the distillation column 3. The reboiler 13 is connected to the bottom of the distillation column 3 for heat exchange, and the inlet of the bottom pump 4 is connected to the bottom outlet of the distillation column 3. The top outlet of the distillation column 3 is connected to the inlet of the condenser 5, the outlet of the condenser 5 is connected to the inlet of the reflux tank 11, the outlet of the reflux tank 11 is connected to the reflux port of the distillation column 3 through the reflux pump 12, the outlet of the reflux tank 11 is also connected to the inlet of the first activated carbon adsorption tank 7 through the first valve 6, and the outlet of the first activated carbon adsorption tank 7 is connected to the inlet of the high-end bamboo vinegar liquid storage tank 14. The first activated carbon adsorption tank 7 is equipped with a disassembly assembly 8, which is used to realize the rapid loading and unloading of the internal adsorption material.

[0022] like Figure 3 , Figure 4 and Figure 5 As shown, the disassembly assembly 8 includes a first fixing block 801, an activated carbon plate 803, a connecting block 804, and a limiting rod 805. The first fixing block 801 is fixedly connected to the outer wall of the first activated carbon adsorption tank 7. The first fixing block 801 is provided with a guide rail structure for the connecting block 804 to slide. The connecting block 804 is slidably connected to the first fixing block 801. The activated carbon plate 803 is fixedly installed on the connecting block 804. The connecting block 804 is provided with a first slot. The limiting rod 805 is movably installed on the first activated carbon adsorption tank 7. When the limiting rod 805 is in the first position, its rod body is inserted into the first slot to lock the connecting block 804. When it is in the second position, its rod body is disengaged from the first slot to unlock the connecting block 804, thereby allowing the connecting block 804 to slide along the guide rail structure.

[0023] The disassembly assembly 8 also includes a second fixing block 802, a fixing seat 806, a fixing plate 808, and a spring 807. The second fixing block 802 is fixedly connected to the outer wall of the first activated carbon adsorption tank 7 and has a second slot. The fixing seat 806 is fixedly connected to the first fixing block 801. The fixing plate 808 is fixedly connected to the limiting rod 805. The spring 807 is sleeved on the limiting rod 805, with one end abutting against the fixing plate 808 and the other end abutting against the fixing seat 806. In the first position, the elastic force of the spring 807 drives the limiting rod 805 to engage in the first slot of the connecting block 804, thereby enabling the connecting block 804 to be disassembled. In the second position, the fixing plate 808 and the fixing seat 806 cooperate to compress the spring 807, and the rod of the limiting rod 805 is engaged in the second slot of the second fixing block 802. At this time, the rod of the limiting rod 805 is disengaged from the first slot, thereby unlocking the connecting block 804. In order to keep the limiting rod 805 stable in the second position, the second slot on the second fixing block 802 is an L-shaped slot, which includes a vertical guide slot section and a horizontal holding slot section. During operation, the limiting rod 805 is pulled upward to move along the vertical guide slot section, and then the limiting rod 805 is rotated to enter the horizontal holding slot section to complete the holding and positioning.

[0024] like Figure 2 As shown, in order to achieve continuous production, the distillation and purification equipment for preparing high-end bamboo vinegar also includes a second activated carbon adsorption tank 9 and a second valve 10. The first activated carbon adsorption tank 7 and the second activated carbon adsorption tank 9 are arranged in parallel. The outlet of the reflux tank 11 is also connected to the inlet of the second activated carbon adsorption tank 9 through the second valve 10. By switching the first valve 6 and the second valve 10, the two activated carbon adsorption tanks can be used alternately to ensure uninterrupted production.

[0025] To further optimize the user experience and reduce maintenance costs, the outer end of the connecting block 804 is provided with a handle for pulling operation. The connecting block 804 is formed as a frame structure for accommodating the activated carbon plate 803. The activated carbon plate 803 is detachably installed in the frame structure of the connecting block 804. When the activated carbon plate 803 is saturated with adsorption, only the activated carbon plate 803 itself needs to be replaced, without replacing the entire connecting block 804.

[0026] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to achieve automatic locking and stable unlocking of the limiting rod 805, the second slot on the second fixing block 802 is specially designed as an L-shaped slot. The L-shaped slot includes a vertical guide slot and a horizontal holding slot. When the limiting rod 805 is moved to the second position along the vertical guide slot by external force, it can be rotated to enter the horizontal holding slot and be stably held, thereby freeing the operator's hands and facilitating subsequent operations. At the same time, the elastic force of the spring 807 can continuously drive the rod body to engage in the first slot of the connecting block 804 when the limiting rod 805 is in the first position, thereby forming a reliable self-locking structure to prevent the connecting block 804 from sliding accidentally.

[0027] As another preferred embodiment, to further improve the convenience of replacement operation and reduce long-term maintenance costs, the first fixing block 801 is provided with a guide rail structure to guide the connecting block 804 to slide smoothly. The outer end of the connecting block 804 is provided with a handle for easy pulling, and the connecting block 804 as a whole forms a frame structure. The activated carbon plate 803 is installed in this frame structure in a detachable manner. This design allows the user to replace only the core of the activated carbon plate 803 after it fails, without having to replace the entire connecting block 804 with the guide rail mating structure.

[0028] The working principle of the distillation and purification equipment for preparing high-end bamboo vinegar is as follows: When bamboo vinegar needs to be purified by distillation, the raw material in the crude bamboo vinegar storage tank 1 is first transported to the middle section of the distillation column 3 through the pipeline by the feed pump 2. The reboiler 13 outside the distillation column 3 provides heat, causing the raw material in the column to evaporate and generate steam. The steam enters the condenser 5 through the top pipeline and is condensed into liquid. Then it flows into the reflux tank 11 through the pipeline. Part of the liquid in the reflux tank 11 is pumped back to the top of the column by the reflux pump 12 as reflux liquid to maintain the distillation balance in the column. The other part is transported through the pipeline as the distilled bamboo vinegar product. The heavy tar residue at the bottom of the column is periodically discharged through the bottom pump 4.

[0029] The flow of the distilled bamboo vinegar product is controlled by the first valve 6 and the second valve 10 on the pipeline. Turning the first valve 6 allows the product to enter the first activated carbon adsorption tank 7, and turning the second valve 10 allows it to enter the second activated carbon adsorption tank 9. The two adsorption tanks are used in a one-in-one standby mode to ensure continuous production. The liquid is in full contact with the activated carbon plate 803 inside the first activated carbon adsorption tank 7 or the second activated carbon adsorption tank 9. The residual trace amounts of tar and pigments are adsorbed and removed. The resulting refined liquid is finally stored in the high-end bamboo vinegar storage tank 14.

[0030] When it is necessary to replace the activated carbon plate 803 in the first activated carbon adsorption tank 7 or the second activated carbon adsorption tank 9, use a tool to pull the limiting rod 805 in the disassembly assembly 8 upwards, so that the fixing plate 808 fixed on the limiting rod 805 cooperates with the fixing seat 806 fixed on the first fixing block 801 to compress the spring 807. Then rotate the limiting rod 805 so that it is locked in the L-shaped slot of the second fixing block 802 to complete the positioning. At this time, the limiting rod 805 leaves the first slot on the connecting block 804. Pull the connecting block 804 to slide the activated carbon plate 803 out along the guide rail structure of the first fixing block 801 for replacement. Through the synergistic action of the limiting rod 805, the connecting block 804 and the spring 807, this utility model solves the problem of complicated and time-consuming activated carbon replacement operation in the prior art.

[0031] 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. A distillation and purification apparatus for preparing high-end bamboo vinegar, comprising: The system includes a coarse bamboo vinegar storage tank (1), a feed pump (2), a distillation column (3), a reboiler (13), a bottom pump (4), a condenser (5), a reflux tank (11), a reflux pump (12), a first valve (6), a first activated carbon adsorption tank (7), and a high-end bamboo vinegar storage tank (14). The outlet pipe of the coarse bamboo vinegar storage tank (1) is connected to the inlet of the feed pump (2), and the outlet of the feed pump (2) is connected to the inlet of the distillation column (3). The reboiler (13) is connected to the bottom of the distillation column (3) for heat exchange. The bottom pump (4) has an inlet... The bottom outlet of the distillation column (3) is connected to the top outlet of the distillation column (3), the inlet of the condenser (5) is connected to the outlet of the condenser (5), the outlet of the condenser (5) is connected to the inlet of the reflux tank (11), the outlet of the reflux tank (11) is connected to the reflux port of the distillation column (3) through the reflux pump (12), the outlet of the reflux tank (11) is also connected to the inlet of the first activated carbon adsorption tank (7) through the first valve (6), and the outlet of the first activated carbon adsorption tank (7) is connected to the inlet of the high-end bamboo vinegar liquid storage tank (14). The first activated carbon adsorption tank (7) is characterized by having a disassembly assembly (8) inside.

2. The distillation and purification equipment for preparing high-end bamboo vinegar according to claim 1, characterized in that, The disassembly assembly (8) includes: The first fixing block (801) is fixedly connected to the outer wall of the first activated carbon adsorption tank (7); Activated carbon board (803); A connecting block (804) is slidably connected to the first fixing block (801), and the activated carbon plate (803) is fixedly installed on the connecting block (804). A first slot is provided on the connecting block (804). And a limiting rod (805), which is movably mounted on the first activated carbon adsorption tank (7). In the first position, the rod of the limiting rod (805) is engaged in the first slot to lock the connecting block (804), and in the second position, the rod is disengaged from the first slot to unlock the connecting block (804).

3. The distillation and purification equipment for preparing high-end bamboo vinegar according to claim 2, characterized in that, The device also includes a second activated carbon adsorption tank (9) and a second valve (10). The first activated carbon adsorption tank (7) and the second activated carbon adsorption tank (9) are arranged in parallel. The outlet of the reflux tank (11) is also connected to the inlet of the second activated carbon adsorption tank (9) through the second valve (10).

4. The distillation and purification equipment for preparing high-end bamboo vinegar according to claim 2, characterized in that, The disassembly assembly (8) also includes: The second fixing block (802) is fixedly connected to the outer wall of the first activated carbon adsorption tank (7), and a second slot is provided on it; The fixing seat (806) is fixedly connected to the first fixing block (801); A fixing plate (808) is fixedly connected to the limiting rod (805); And a spring (807), which is sleeved on the limiting rod (805), with one end abutting the fixing plate (808) and the other end abutting the fixing seat (806). When the limiting rod (805) is in the second position, the fixing plate (808) and the fixing seat (806) cooperate to compress the spring (807), and the rod body of the limiting rod (805) is inserted into the second slot of the second fixing block (802).

5. The distillation and purification equipment for preparing high-end bamboo vinegar according to claim 2, characterized in that, The first fixing block (801) is provided with a guide rail structure for the connecting block (804) to slide.

6. The distillation and purification equipment for preparing high-end bamboo vinegar according to claim 4, characterized in that, When the limiting rod (805) is in the first position, the elastic force of the spring (807) drives the limiting rod (805) to engage in the first slot of the connecting block (804).

7. The distillation and purification equipment for preparing high-end bamboo vinegar according to claim 4, characterized in that, The second slot on the second fixing block (802) is an L-shaped slot, which includes a vertical guide slot section and a horizontal holding slot section.

8. The distillation and purification equipment for preparing high-end bamboo vinegar according to claim 2, characterized in that, The outer end of the connecting block (804) is provided with a handle for pulling operation, and the connecting block (804) is formed as a frame structure for accommodating the activated carbon plate (803).

9. The distillation and purification equipment for preparing high-end bamboo vinegar according to claim 8, characterized in that, The activated carbon plate (803) is detachably installed within the frame structure of the connecting block (804).

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