Settling extraction device for solvent separation in curdlan production

Abstract

The utility model belongs to the technical field of extraction machines, and discloses a sedimentation extraction device for solvent separation in curdlan production, which comprises a mixing tank, a plurality of groups of pipe components are annularly arrayed on the outer surface of the mixing tank, the other end of each group of pipe component is communicated with a sedimentation tank, each group of pipe component is simultaneously communicated with the mixing tank, and the sedimentation tank is communicated with the mixing tank. A cylinder for driving the stirring assembly to slide up and down is fixedly mounted on the upper end surface outside the mixing tank; the device is simple in overall structure, raw material solvents can be fully mixed for extraction, the extraction efficiency is improved, foam generated by stirring is eliminated, the extraction liquid collecting efficiency can be improved, cleaning is convenient, and the using effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of extraction machines, and specifically relates to a sedimentation extraction device for solvent separation in curdlan production. Background Art

[0002] Curdlan, also known as thermogel, is a new type of microbial extracellular polysaccharide, which has attracted much attention due to its unique property of forming a gel under heating conditions. This polysaccharide is a non-branched and homogeneous polysaccharide polymer composed of a single D-glucose linked by β-1,3-glycosidic bonds at C1 and C3 positions. Its gel properties make curdlan have broad application prospects in the fields of food, medicine, agriculture, etc.

[0003] In the production process of curdlan, solvent separation is a key link. Traditional separation methods may have problems such as low efficiency and unstable product quality. Therefore, developing an efficient and stable solvent separation technology is of great significance for improving the production efficiency and product quality of curdlan.

[0004] As an advanced separation technology, the sedimentation extraction device is widely used in the production of various chemical products. This device realizes the separation of substances through the difference in the solubility of substances in solvents by the action of gravity. In the production of curdlan, the sedimentation extraction device can effectively separate curdlan from the fermentation broth, and at the same time remove the impurities therein, improving the purity and quality of the product.

[0005] The existing sedimentation extraction device includes a mixing tank and a sedimentation tank. The raw material and the solvent are added to the mixing tank, and extraction is carried out through stirring and contact. The extraction liquid is sent to the sedimentation tank to obtain the extraction liquid and the raffinate respectively; the separation of the extraction liquid and the raffinate is realized by the action of its own gravity, and this process is relatively long, greatly affecting the extraction time and reducing the production efficiency. In addition, when stirring in the mixing tank, a common stirring fan blade is used for rotation and stirring, resulting in insufficient stirring and affecting the extraction quality. During the stirring process, foam appears above the mixed liquid, affecting the extraction of the extraction liquid; finally, after each use of the mixing tank, it needs to be cleaned, and the cleaning wastes a lot of manpower. Content of the Utility Model

[0006] The main technical problem to be solved by the utility model is to provide a sedimentation extraction device for solvent separation in curdlan production with a simple overall structure, which can fully mix the raw material solvent for extraction, improve the extraction efficiency, eliminate the foam generated by stirring, and can improve the collection efficiency of the extraction liquid, is convenient to clean, and improves the use effect.

[0007] To solve the above technical problems, the utility model provides the following technical solutions:

[0008] A sedimentation extraction device for solvent separation in curdlan production, comprising a mixing tank. A plurality of groups of pipe assemblies are annularly arranged on the outer surface of the mixing tank. The other end of each group of pipe assemblies is communicated with a sedimentation tank. Each group of pipe assemblies is simultaneously communicated with the mixing tank. A stirring assembly is slidably connected up and down inside the mixing tank, and a cylinder for driving the stirring assembly to slide up and down is fixedly installed on the upper end surface outside the mixing tank;

[0009] The stirring assembly includes a connecting shaft fixedly installed at the telescopic end of the cylinder, and the connecting shaft is simultaneously located inside the mixing tank;

[0010] A fixed disk is fixedly installed at the other end of the connecting shaft. A plurality of partition bars are annularly arranged on the outer surface of the fixed disk. A plurality of needles are linearly arranged on the surface of each partition bar close to the cylinder;

[0011] The other ends of the plurality of partition bars are fixedly installed with the same sleeve. A scraper is fixedly installed at the middle position on the outer surface of the sleeve, and the other end surface of the scraper abuts against the inner wall of the mixing tank.

[0012] The following is a further optimization of the above technical solution by the present utility model:

[0013] The mixing tank includes a first tank body used on the ground. A liquid inlet for material and an extraction agent inlet are symmetrically arranged and communicated on the upper end surface of the first tank body. A first liquid level sensor is fixedly installed on the inner wall of the first tank body near the upper position.

[0014] Further optimization: The sedimentation tank includes a second tank body used on the ground. An extraction liquid outlet is communicated at a position near the middle on the outer surface of the second tank body, and a raffinate liquid outlet is communicated at a position near the lower part on the outer surface of the second tank body.

[0015] Further optimization: A second liquid level sensor is fixedly installed on the inner wall of the second tank body near the upper position.

[0016] Further optimization: The pipe assembly includes a connecting pipe for communicating the first tank body and the second tank body, and a control valve is connected in series on each connecting pipe.

[0017] Further optimization: A cylinder bracket is fixedly installed at a position near the middle on the upper end surface of the first tank body. The cylinder is fixedly installed on the cylinder bracket, and the power output end of the cylinder is fixedly connected with the connecting shaft.

[0018] Further optimization: An adhesive layer is adhered to the end surface of the scraper close to the first tank body, and the outer surface of the adhesive layer abuts against the inner wall of the first tank body.

[0019] Further optimization: A control cabinet is fixedly installed on the outer side surface of the first tank body. A control system for controlling the operation of the device is arranged inside the control cabinet. The signal output ends of the first liquid level sensor and all the second liquid level sensors are electrically connected to the control system. The control end of the air cylinder is electrically connected to the control system through a wire, and the control ends of all control valves are electrically connected to the control system.

[0020] The utility model adopts the above technical scheme, with ingenious conception and reasonable structure. During the solvent separation process of producing curdlan, by communicating and arranging a plurality of sedimentation tanks on the outer surface of the mixing tank, and under the control of the control system, enabling the mixed liquid to enter the sedimentation tanks in sequence, the extraction rate of the extract can be increased, the efficiency of solvent separation can be accelerated. And inside the mixing tank, an air cylinder is used to drive the partition strip to slide up and down to stir the feed liquid and the extractant up and down, accelerating the fusion rate and facilitating sufficient extraction. At the same time, a rubber layer is arranged outside the scraper to scrape the inner wall of the mixing tank, preventing the mixed liquid from adhering to the inner wall and not damaging the inner wall; when the air cylinder drives the partition strip to move to the upper part, the needles on the partition strip eliminate the generated foam, eliminating the need for an additional defoaming device, reducing the production and manufacturing cost and being convenient to use.

[0021] The following further explains the utility model with reference to the drawings and embodiments. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the utility model;

[0023] Figure 2 It is a top view of the overall structure in the embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the internal structure of the mixing tank in the embodiment of the utility model;

[0025] Figure 4 It is a schematic diagram of the structure of the stirring assembly in the embodiment of the utility model;

[0026] Figure 5 It is a top view of the stirring assembly in the embodiment of the utility model.

[0027] In the figure: 1. Mixing tank; 11. First tank body; 12. Feed liquid inlet; 13. Extractant inlet; 14. First liquid level sensor; 2. Sedimentation tank; 21. Second tank body; 22. Extract outlet; 23. Raffinate outlet; 24. Second liquid level sensor; 3. Pipe assembly; 31. Connecting pipe; 32. Control valve; 4. Air cylinder support; 5. Air cylinder; 6. Stirring assembly; 61. Connecting shaft; 62. Fixed disk; 63. Partition strip; 64. Sleeve; 65. Needle; 66. Scraper; 67. Rubber layer. Detailed Embodiments

[0028] As shown Figures 1-5 in the figure: A sedimentation extraction device for solvent separation in curdlan production, including a mixing tank 1. A plurality of groups of pipe assemblies 3 are annularly arrayed on the outer surface of the mixing tank 1. The other end of each group of pipe assemblies 3 is communicated with a sedimentation tank 2. Each group of pipe assemblies 3 is simultaneously communicated with the mixing tank 1. A stirring assembly 6 is slidably connected up and down inside the mixing tank 1. A cylinder 5 for driving the stirring assembly 6 to slide up and down is fixedly installed on the upper end face outside the mixing tank 1;

[0029] The stirring assembly 6 includes a connecting shaft 61 fixedly installed at the power output end of the cylinder 5. The connecting shaft 61 is simultaneously located inside the mixing tank 1;

[0030] The other end of the connecting shaft 61 is fixedly installed with a fixed disk 62. A plurality of partition bars 63 are annularly arrayed on the outer surface of the fixed disk 62. A plurality of needles 65 are linearly arrayed on the surface of each partition bar 63 close to the cylinder 5;

[0031] The other ends of the plurality of partition bars 63 are fixedly installed with the same sleeve 64. A scraper 66 is fixedly installed at the middle position on the outer surface of the sleeve 64. The other end face of the scraper 66 abuts against the inner wall of the mixing tank 1.

[0032] In this embodiment, both the mixing tank 1 and the sedimentation tank 2 adopt common structures in the extraction device and are directly placed on the ground for use. Their specific structures will not be elaborated here.

[0033] The mixing tank 1 includes a first tank body 11 placed on the ground for use. A liquid inlet 12 and an extractant inlet 13 are symmetrically arranged and communicated on the upper end face of the first tank body 11.

[0034] The other end of the liquid inlet 12 is communicated with an external total material source device through a pipeline. The total material source device controls the liquid material to enter the inside of the first tank body 11 through the liquid inlet 12.

[0035] The other end of the extractant inlet 13 is communicated with a device for containing extractant outside through a pipeline. The device for containing extractant controls the extractant to enter the inside of the first tank body 11 through the extractant inlet 13.

[0036] In this embodiment, the caliber ratio of the extractant inlet 13 to the liquid inlet 12 is set according to the ratio of the solvent to the liquid material required in curdlan production. With this design, when the liquid material and the extractant enter the inside of the first tank body 11 through the liquid inlet 12 and the extractant inlet 13 respectively, they can enter in a suitable ratio, ensuring the efficiency of solvent separation.

[0037] In the prior art, the ratio of the liquid material to the extractant is well-known and will not be elaborated here.

[0038] A first liquid level sensor 14 is fixedly installed on the inner wall of the first tank body 11 near the upper position.

[0039] The settling tank 2 includes a second tank body 21 placed on the ground for use. An extraction liquid outlet 22 communicates with the outer surface of the second tank body 21 near the middle position, and a raffinate liquid outlet 23 communicates with the outer surface of the second tank body 21 near the lower position.

[0040] A second liquid level sensor 24 is fixedly installed on the inner wall of the second tank body 21 near the upper position. The second liquid level sensor 24 can detect the liquid level height of the mixed liquid in the second tank body 21. When the mixed liquid in the second tank body 21 reaches the second liquid level sensor 24, the feeding of the mixed liquid into the second tank body 21 is controlled to stop.

[0041] The mixed liquid that has completed extraction inside the first tank body 11 enters the second tank body 21 and is separated under the action of gravity. After a period of time, the extraction liquid is located near the upper position inside the second tank body 21, and the raffinate liquid is located at the lower position inside the second tank body 21. Then, the extraction liquid is output from the extraction liquid outlet 22, and the raffinate liquid is output from the raffinate liquid outlet 23.

[0042] The output principles of the extraction liquid and the raffinate liquid from the extraction liquid outlet 22 and the raffinate liquid outlet 23 respectively are already well-known and widely used in the prior art, and will not be elaborated here.

[0043] The pipe assembly 3 includes a connecting pipe 31 that connects the first tank body 11 and the second tank body 21, and control valves 32 are connected in series on the connecting pipe 31.

[0044] The feeding of the mixed liquid into the second tank body 21 is controlled by the control valve 32.

[0045] A cylinder bracket 4 is fixedly installed on the upper end surface of the first tank body 11 near the middle position, and a cylinder 5 is fixedly installed on the cylinder bracket 4.

[0046] The power output end of the cylinder 5 is fixedly connected to the connecting shaft 61. With this design, when the cylinder 5 is started, the power output end of the cylinder 5 drives the connecting shaft 61 to slide up and down along the inner wall of the first tank body 11.

[0047] As Figures 4-5 shown, a mixing chamber is formed between two adjacent partition bars 63.

[0048] An adhesive layer 67 is adhered to the end face of the scraper 66 close to the first tank body 11, and the end of the adhesive layer 67 abuts against the inner wall of the first tank body 11. When the connecting shaft 61 drives the sleeve 64 and the adhesive layer 67 to slide up and down, the adhesive layer 67 simultaneously scrapes and cleans the inner wall of the first tank body 11.

[0049] When the actuator 5 drives the partition strip 63 to slide above the mixed liquid, the acupuncture needle 65 can eliminate the foam on the surface of the mixed liquid, eliminating the need to additionally set up other defoaming devices, greatly reducing the production and manufacturing costs. Moreover, after defoaming the mixed liquid, the quality of solvent separation and extraction is improved.

[0050] A control cabinet is also fixedly installed on the outer side surface of the first tank body 11, not marked in the figure. A control system for controlling the operation of the device is arranged inside the control cabinet.

[0051] The signal output ends of the first liquid level sensor 14 and all the second liquid level sensors 24 are electrically connected to the control system.

[0052] The control end of the cylinder 5 is electrically connected to the control system through wires.

[0053] The control ends of all the control valves 32 are electrically connected to the control system.

[0054] When the device is in use, the feed liquid and the extractant are first added into the first tank body 11 in proportion through the feed liquid inlet 12 and the extractant inlet 13 respectively. When the liquid level inside the first tank body 11 triggers the first liquid level sensor 14, adding the feed liquid and the extractant into the first tank body 11 is stopped. Then the control system controls the cylinder 5 to start. The power output end of the cylinder 5 drives the connecting shaft 61, the partition strip 63, the sleeve 64, and the scraper 66 to slide up and down along the inner wall of the first tank body 11. During this period, the mixing chamber stirs the mixed liquid formed by the feed liquid and the extractant inside the first tank body 11 up and down from top to bottom, enabling them to be fully mixed for extraction. At the same time, the glue layer 67 scrapes the inner wall of the first tank body 11 to prevent the mixed liquid from adhering to the inner wall, causing inconvenience in cleaning.

[0055] When the extraction is completed, the control system sequentially controls the opening of the control valves 32, enabling the mixed liquid to be input into the second tank body 21 through the connecting pipe 31 in sequence. During this period, the control signal is the corresponding second liquid level sensor 24 in each second tank body 21. When the mixed liquid triggers one of the second liquid level sensors 24, the signal is fed back to the control system, and the control system then controls the closing of the control valve 32 corresponding to this second liquid level sensor 24, and then opens the next control valve 32 to enable the mixed liquid to enter the corresponding second tank body 21 until all the second tank bodies 21 are filled with the mixed liquid for sedimentation reaction. This can increase the sedimentation efficiency and does not affect the next round of extraction reaction in the mixing tank 1, improving the production efficiency.

[0056] After the extraction is completed, the extract liquid in each second tank body 21 is output through the extract liquid outlet 22 in sequence, and the raffinate is output from the raffinate outlet 23, and then the next sedimentation is carried out.

[0057] After the device is used up, the control system continues to control the cylinder 5 to open, and clean water is added from the liquid inlet 12 or the extractant inlet 13. Under the action of the rubber layer 67 of the scraper 66, the inner wall of the first tank body 11 is scraped and cleaned. The cleaned water then enters each second tank body 21 for cleaning, and finally the sewage flows out through the raffinate outlet 23 for unified treatment.

[0058] For those of ordinary skill in the art, according to the teachings of the present utility model, without departing from the principles and spirit of the present utility model, the changes, modifications, substitutions, and deformations made to the embodiments still fall within the protection scope of the present utility model.

Claims

1. A sedimentation extraction device for solvent separation in curdlan production, comprising a mixing tank (1), characterized in that: An outer surface of the mixing tank (1) is annularly arrayed with multiple groups of pipe assemblies (3), the other end of each group of pipe assemblies (3) is communicated with a sedimentation tank (2), each group of pipe assemblies (3) is simultaneously communicated with the mixing tank (1), a stirring assembly (6) is slidably connected up and down inside the mixing tank (1), and a cylinder (5) for driving the stirring assembly (6) to slide up and down is fixedly installed on an upper end surface outside the mixing tank (1); The stirring assembly (6) includes a connecting shaft (61) fixedly installed at a telescopic end of the cylinder (5), and the connecting shaft (61) is simultaneously located inside the mixing tank (1); The other end of the connecting shaft (61) is fixedly installed with a fixed disk (62), a plurality of partition bars (63) are annularly arrayed on an outer surface of the fixed disk (62), and a plurality of needles (65) are linearly arrayed on a surface of each partition bar (63) close to the cylinder (5); The other ends of the plurality of partition bars (63) are fixedly installed with the same sleeve (64), a scraper (66) is fixedly installed at a middle position on an outer surface of the sleeve (64), and an end surface of the scraper (66) abuts against an inner wall of the mixing tank (1).

2. The sedimentation extraction device for solvent separation in curdlan production according to claim 1, wherein: The mixing tank (1) includes a first tank body (11) used by being placed on the ground, a liquid inlet (12) and an extractant inlet (13) which are symmetrically arranged are communicated with an upper end surface of the first tank body (11), and a first liquid level sensor (14) is fixedly installed at a position close to the upper part on an inner wall of the first tank body (11).

3. The sedimentation extraction device for solvent separation in curdlan production according to claim 2, characterized in that: The sedimentation tank (2) includes a second tank body (21) used by being placed on the ground, an extraction liquid outlet (22) is communicated with an outer surface of the second tank body (21) close to the middle position, and a raffinate outlet (23) is communicated with an outer surface of the second tank body (21) close to the lower part.

4. A sedimentation extraction device for solvent separation in curdlan production according to claim 3, characterized in that: A second liquid level sensor (24) is fixedly installed at a position close to the upper part on an inner wall of the second tank body (21).

5. The sedimentation extraction device for solvent separation in curdlan production according to claim 4, characterized in that: The pipe assembly (3) includes a connecting pipe (31) for communicating the first tank body (11) with the second tank body (21), and a control valve (32) is connected in series on each connecting pipe (31).

6. The sedimentation extraction device for solvent separation in curdlan production according to claim 5, characterized in that: A cylinder bracket (4) is fixedly installed at a position close to the middle on an upper end surface of the first tank body (11), the cylinder (5) is fixedly installed on the cylinder bracket (4), and a power output end of the cylinder (5) is fixedly connected with the connecting shaft (61).

7. A sedimentation extraction device for solvent separation in curdlan production according to claim 6, characterized in that: An adhesive layer (67) is adhered to an end surface of the scraper (66) close to the first tank body (11), and an outer surface of the adhesive layer (67) abuts against an inner wall of the first tank body (11).

8. A sedimentation extraction device for solvent separation in curdlan production according to claim 7, characterized in that: A control cabinet is further fixedly installed on an outer side surface of the first tank body (11), a control system for controlling the operation of the device is arranged inside the control cabinet, signal output ends of the first liquid level sensor (14) and all the second liquid level sensors (24) are electrically connected with the control system, a control end of the cylinder (5) is electrically connected with the control system, and control ends of all the control valves (32) are electrically connected with the control system.

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