Solvent recovery device for preparing biomass aerogel

Abstract

The utility model relates to the technical field of solvent recovery, and discloses a solvent recovery device for preparing biomass aerogel, which comprises a reaction tank, a cleaning and stirring mechanism is arranged at the top of the reaction tank, a knocking mechanism is arranged outside the cleaning and stirring mechanism, and a filtering and distilling mechanism is arranged on the right side of the reaction tank. A reflux condensation mechanism is arranged at the top of the filtering distillation mechanism, a feeding pipe is fixedly connected to the left side of the top of the reaction tank, a discharging pipe is fixedly connected to the left side of the exterior of the reaction tank, and a valve is arranged outside the discharging pipe. The knocking mechanism comprises a cam, and the interior of the cam is fixedly connected to the exterior of the cleaning and stirring mechanism. According to the utility model, water drops are prevented from being accumulated on the inner wall of the distillation retort, and the problems of heat loss and low distillation efficiency caused by water drop accumulation are reduced, so that the distillation efficiency and quality are greatly improved, and the efficient operation of the distillation link in the solvent recovery process is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to solvent recovery technical field especially relates to solvent recovery device for biomass aerogel preparation. BACKGROUND

[0002] Biomass aerogel is a kind of novel material with nano-porous structure prepared by biomass as raw material. It usually adopts renewable biomass resources such as plant fiber, lignin, chitosan, etc. and is prepared by sol-gel, freeze drying and a series of processes. It has extremely low density and can float in air, and its appearance often presents light, transparent block or fibrous. At the same time, it has extremely high specific surface area, which makes it have excellent performance in adsorption, catalysis and other fields. For example, in environmental management, it can be used for adsorbing pollutants in water; in energy field, it can be used as carrier of battery electrode material. In addition, biomass aerogel also has good heat insulation performance and can be applied to thermal insulation materials. Because its raw material is derived from biomass, it has the advantages of renewable, environment-friendly, etc. Therefore, it has shown broad application prospect in many fields.

[0003] After the preparation of biomass aerogel, the solvent recovery generally includes the following key steps. First, collect the waste liquid produced by supercritical drying, which contains solvent and possible impurities. Then, carry out acidification treatment, add appropriate amount of dilute sulfuric acid or phosphoric acid, neutralize the ammonium ions therein, and introduce nitrogen to prevent oxidation, to form a solid-liquid suspension mixture. Then, remove the solid suspension by filtration, and analyze the filtrate. After passing, it enters the distillation system. In the distillation and purification stage, the residual impurities are removed by using rectification principle, so as to obtain high-purity solvent for recycling.

[0004] However, part of the existing solvent recovery device for biomass aerogel preparation cannot guarantee the distillation effect. In the distillation process, condensation will occur in the internal part of the distillation tank, which will make the evaporation and condensation process of the solvent disorderly, and cannot realize effective separation according to the expected boiling point difference, so as to finally cannot guarantee the ideal distillation effect, which seriously affects the purity and efficiency of solvent recovery in the preparation of biomass aerogel. Therefore, in view of the above shortcomings, the solvent recovery device for biomass aerogel preparation is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a solvent recovery device for biomass aerogel preparation, which aims at improving the problem that part of the existing solvent recovery device for biomass aerogel preparation cannot guarantee the distillation effect.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a solvent recovery device for biomass aerogel preparation, including the reaction kettle, the top of reaction kettle is provided with the clean stirring mechanism, the outside of clean stirring mechanism is provided with knock mechanism, the right side of reaction kettle is provided with filter distillation mechanism, the top of filter distillation mechanism is provided with reflux condensation mechanism, the left side fixedly connected of reaction kettle top has the feed pipe, the left side fixedly connected of reaction kettle outside has the discharge pipe, the outside of discharge pipe is provided with valve,

[0008] The knock mechanism includes a cam, the cam is fixedly connected to the outside of the cleaning stirring mechanism, a sliding rod is slidably connected to the inside of the reaction kettle, a fixed ring is slidably connected to the outside of the sliding rod, a spring is sleeved to the outside of the sliding rod, a moving ring is fixedly connected to the left side of the outside of the sliding rod, a pressing fan ring is fixedly connected to the left side of the sliding rod, and a knocking ring is fixedly connected to the right side of the sliding rod.

[0009] As a further description of the above technical solution:

[0010] The cleaning stirring mechanism includes a motor, the bottom of the motor is mounted on the top of the reaction kettle, the output end of the motor is fixedly connected with a drive shaft, a plurality of stirring blades are fixedly connected to the outside of the drive shaft, a pushing frame is fixedly connected to the bottom of the drive shaft, a plurality of scrapers are fixedly connected to the top of the pushing frame, and a plurality of positioning rings are fixedly connected to the top of the scrapers.

[0011] As a further description of the above technical solution:

[0012] The filter distillation mechanism includes a distillation tank, a flow guide pipe is fixedly connected to the left side of the distillation tank, a control valve is arranged on the outside of the flow guide pipe, and a filter plate is fixedly connected to the left side of the flow guide pipe.

[0013] As a further description of the above technical solution:

[0014] The reflux condensation mechanism includes an air flow pipe, the left side of the air flow pipe is fixedly connected to the top of the distillation tank, a cold water pipe is sleeved to the outside of the air flow pipe, one end of the cold water pipe is fixedly connected with a water inlet pipe, the other end of the cold water pipe is fixedly connected with a water outlet pipe, and a collection tank is fixedly connected to the bottom of the air flow pipe.

[0015] As a further description of the above technical solution:

[0016] The right side of the knocking ring is in contact with the left side of the outside of the distillation tank, and the outside of the fixed ring is fixedly connected to the inside of the top of the reaction kettle.

[0017] As a further description of the above technical solution:

[0018] One end of the spring is fixedly connected to the left side of the fixed ring, and the other end of the spring is fixedly connected to the right side of the moving ring;

[0019] As a further description of the above technical solution:

[0020] The left side of the extrusion fan ring is in contact with the outside of the cam, the outside of the scraper is slidingly connected to the inside of the reaction tank, and the inside of the cam is fixedly connected to the outside of the driving shaft.

[0021] As a further description of the above technical solution:

[0022] The left side of the flow guide pipe is fixedly connected to the right side of the inside of the reaction tank, and the outside of the positioning ring is rotatably connected to the inside of the reaction tank.

[0023] The utility model has the following beneficial effects:

[0024] 1、in the utility model, when the driving shaft rotates, the cam intermittently extrudes the extrusion fan ring in the rotating process, when being extruded, the sliding rod and the moving ring are driven to displace leftwards, and the spring is compressed to store elastic potential energy;When the cam rotates to the position of no longer extruding, the spring releases the elastic potential energy, pushes the sliding rod and the moving ring to reset rightwards, and this reciprocating motion makes the knocking ring fixed to the right side of the sliding rod intermittently knock the outside of the distillation tank, the knocking action can effectively make the water droplets condensed in the inside of the distillation tank drop again to the inside of the distillation tank for distillation, avoids the accumulation of water droplets on the inner wall of the distillation tank, reduces the problems of heat loss and reduction of distillation efficiency caused by the accumulation of water droplets, thereby greatly improving the efficiency and quality of distillation, and ensuring the efficient operation of the distillation link in the solvent recovery process.

[0025] 2、in the utility model, when the driving shaft rotates, the pushing frame and the scraper are driven to rotate together, the scraper performs circumferential scraping movement along the inner wall of the reaction tank under the driving of the pushing frame, can scrape off the solid impurities attached to the inner wall of the reaction tank in time, under the auxiliary action of the pushing frame, can enter the inside of the discharge pipe and be discharged, effectively prevents the accumulation of solid impurities on the inner wall of the reaction tank, ensures the cleanliness of the inside of the reaction tank, provides sufficient reaction space for the reaction, reduces the interference of solid impurities on the reaction, thereby greatly improving the reaction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The utility model discloses a solvent recovery device for biomass aerogel preparation;

[0027] Figure 2 The utility model discloses a solvent recovery device for biomass aerogel preparation;

[0028] Figure 3 The utility model provides a driving shaft structure schematic drawing of solvent recovery device for biomass aerogel preparation is provided for the utility model,

[0029] Figure 4 The utility model provides a distillation tank structure schematic drawing of solvent recovery device for biomass aerogel preparation is provided for the utility model,

[0030] Legend:

[0031] 1, reaction tank;2, cleaning stirring mechanism;21, motor;22, drive shaft;23, stirring blade;24, push frame;25, scraper;26, positioning ring;3, knock mechanism;31, cam;32, sliding rod;33, fixed ring;34, spring;35, moving ring;36, extrusion fan ring;37, knock ring;4, filter distillation mechanism;41, distillation tank;42, flow guide pipe;43, control valve;44, filter plate;5, reflux condensation mechanism;51, airflow pipe;52, cold water pipe;53, water inlet pipe;54, water outlet pipe;55, collection tank;6, feed pipe;7, discharge pipe;8, valve. Specific implementation

[0032] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] Reference Figures 1 to 3The utility model provides a kind of solvent recovery device for biomass aerogel preparation, including reaction tank 1, the top of reaction tank 1 is provided with cleaning stirring mechanism 2, the outside of cleaning stirring mechanism 2 is provided with knocking mechanism 3, the right side of reaction tank 1 is provided with filter distillation mechanism 4, the top of filter distillation mechanism 4 is provided with reflux condensation mechanism 5, the top left side of reaction tank 1 is fixedly connected with feed pipe 6, the outside left side of reaction tank 1 is fixedly connected with discharge pipe 7, the outside of discharge pipe 7 is provided with valve 8;Knocking mechanism 3 includes cam 31, cam 31 is fixedly connected in the outside of cleaning stirring mechanism 2, when driving shaft 22 rotates, cam 31 can intermittently exert extrusion pressure on extrusion fan ring 36, cam 31 is fixedly connected in the outside of driving shaft 22, the inside of reaction tank 1 is slidably connected with sliding rod 32, the outside of sliding rod 32 is slidably connected with fixed ring 33, the outside of fixed ring 33 is fixedly connected in the inside top side of reaction tank 1, spring 34 is provided on the outside of sliding rod 32, when cam 31 rotates extrusion extrusion fan ring 36, extrusion fan ring 36 drives sliding rod 32 and moving ring 35 to displace left, spring 34 is compressed, stores elastic potential energy, one end of spring 34 is fixedly connected in the left side of fixed ring 33, the other end of spring 34 is fixedly connected in the right side of moving ring 35, the outside left side of sliding rod 32 is fixedly connected with moving ring 35, moving ring 35 and fixed ring 33 provide support point for spring 34, the left side of sliding rod 32 is fixedly connected with extrusion fan ring 36, the left side of extrusion fan ring 36 is in contact with the outside of cam 31, the right side of sliding rod 32 is fixedly connected with knocking ring 37, when sliding rod 32 does reciprocating motion, knocking ring 37 can stably move synchronously with it, under the driving of sliding rod 32, knocking ring 37 intermittently knocks the outside of distillation tank 41.

[0034] Refer to Figures 2 to 3 , cleaning stirring mechanism 2 includes motor 21, the bottom of motor 21 is installed in the top of reaction tank 1, motor 21 is as the power source of cleaning stirring mechanism 2, the output of motor 21 is fixedly connected with driving shaft 22, the outside of driving shaft 22 is fixedly connected with a plurality of stirring blades 23, stirring blade 23 can more efficiently push liquid to form strong convection and mixing effect in reaction tank 1 when driving shaft 22 rotates, the bottom of driving shaft 22 is fixedly connected with push frame 24, push frame 24 can assist solid impurities to enter the inside of discharge pipe 7 and discharge, the top of push frame 24 is fixedly connected with a plurality of scrapers 25, the outside of scraper 25 is slidably connected in the inside of reaction tank 1, scraper 25 ensures that when carrying out circumferential scraping motion under the driving of push frame 24, solid material adhered on the inner wall of reaction tank 1 can be scraped clean in time effectively, the top of a plurality of scrapers 25 is fixedly connected with positioning ring 26, the outside of positioning ring 26 is rotatably connected in the inside of reaction tank 1, positioning ring 26 provides stable and reliable support for scraper 25.

[0035] Refer toFigure 1 、 Figure 2 and Figure 4 The filtering distillation mechanism 4 comprises a distillation tank 41, the right side of the knocking ring 37 is in contact with the outer left side of the distillation tank 41, the distillation tank 41 is used for distilling the internal liquid, the left side of the distillation tank 41 is fixedly connected with a flow guide pipe 42, the left side of the flow guide pipe 42 is fixedly connected to the inner right side of the reaction tank 1, the outer side of the flow guide pipe 42 is provided with a control valve 43, the control valve 43 can quickly and accurately suck the liquid after the acidification reaction in the reaction tank 1 into the inside of the distillation tank 41 through the flow guide pipe 42, the left side of the flow guide pipe 42 is fixedly connected with a filter plate 44, the filter plate 44 can effectively intercept solid particles, avoiding the interference of solid impurities on the distillation process, greatly improving the distillation effect and product quality.

[0036] Referring to Figure 1 、 Figure 2 and Figure 4 The reflux condensation mechanism 5 comprises an air flow pipe 51, the air flow pipe 51 can quickly and effectively transfer the heat generated by the hot gas in the distillation tank 41, the left side of the air flow pipe 51 is fixedly connected to the top of the distillation tank 41, the outer side of the air flow pipe 51 is sleeved with a cold water pipe 52, one end of the cold water pipe 52 is fixedly connected with a water inlet pipe 53, the cold water injected through the water inlet pipe 53 increases the contact area and contact time of the cold water with the air flow pipe 51 in the flow process in the cold water pipe 52, thereby improving the heat exchange efficiency, the other end of the cold water pipe 52 is fixedly connected with a water outlet pipe 54, the bottom of the air flow pipe 51 is fixedly connected with a collection tank 55, the collection tank 55 is used for collecting the condensed liquid after the distillation is completed.

[0037] Working principle: when using the solvent recovery device for preparing biomass aerogel, first, the waste liquid generated after the preparation of biomass aerogel is poured into the inside of the reaction tank 1 through the feeding pipe 6, then the acidifying agent is added, at this time, the motor 21 can be started to drive the driving shaft 22 to rotate, at this time, the stirring blade 23 is driven to make circular motion, at this time, the liquid in the reaction tank 1 can be fully stirred to make it fully react, at the same time, as the driving shaft 22 rotates, the pushing frame 24 and the scraper 25 are driven to rotate, by the rotation of the scraper 25, the inner wall of the reaction tank 1 can be scraped, thereby effectively preventing the solid from adhering to the inner wall of the reaction tank 1, after the acidification is completed, the control valve 43 can be started to suck the remaining liquid after the reaction into the inside of the distillation tank 41 through the flow guide pipe 42, by the filter plate 44, the solid can be effectively prevented from entering the inside of the distillation tank 41, then the liquid in the inside of the distillation tank 41 can be distilled, finally the gas enters the inside of the air flow pipe 51, the cold water is injected through the water inlet pipe 53, flows in the inside of the cold water pipe 52, and finally flows out from the water outlet pipe 54, thereby the gas in the inside of the air flow pipe 51 can be condensed and finally collected in the inside of the collection tank 55.

[0038] During the rotation of the driving shaft 22, the cam 31 is rotated, and the cam 31 can intermittently extrude the extrusion fan ring 36 to make the extrusion fan ring 36 displace, and the moving ring 35 is displaced, and the spring 34 is compressed, and the sliding rod 32 and the knocking ring 37 are reciprocated, so that the knocking ring 37 intermittently knocks the outside of the distillation tank 41, and the water droplets condensed in the inside of the distillation tank 41 are dripped into the inside of the distillation tank 41 to be distilled, and the efficiency and quality of the distillation are greatly improved.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the application have been described and are not intended to limit the application, although the application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still be modified to the technical solutions recorded in the foregoing embodiments, or to make equivalent replacement for some of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application, should be included within the scope of the application.

Claims

1. A solvent recovery apparatus for the preparation of biomass aerogels comprising a reaction tank (1), characterized in that: The top of the reaction tank (1) is provided with a cleaning stirring mechanism (2), the outside of the cleaning stirring mechanism (2) is provided with a knocking mechanism (3), the right side of the reaction tank (1) is provided with a filtering distillation mechanism (4), the top of the filtering distillation mechanism (4) is provided with a reflux condensation mechanism (5), the top left side of the reaction tank (1) is fixedly connected with a feeding pipe (6), the left side outside of the reaction tank (1) is fixedly connected with a discharging pipe (7), the outside of the discharging pipe (7) is provided with a valve (8); The knocking mechanism (3) comprises a cam (31), the inside of the cam (31) is fixedly connected outside the cleaning stirring mechanism (2), the inside of the reaction tank (1) is slidably connected with a sliding rod (32), the outside of the sliding rod (32) is slidably connected with a fixed ring (33), the outside of the sliding rod (32) is sleeved with a spring (34), the left side outside of the sliding rod (32) is fixedly connected with a moving ring (35), the left side of the sliding rod (32) is fixedly connected with an extrusion fan ring (36), and the right side of the sliding rod (32) is fixedly connected with a knocking ring (37).

2. The biomass aerogel production solvent recovery apparatus according to claim 1, characterized by: The cleaning stirring mechanism (2) comprises a motor (21), the bottom of the motor (21) is mounted on the top of the reaction tank (1), the output end of the motor (21) is fixedly connected with a driving shaft (22), the outside of the driving shaft (22) is fixedly connected with a plurality of stirring blades (23), the bottom of the driving shaft (22) is fixedly connected with a pushing frame (24), the top of the pushing frame (24) is fixedly connected with a plurality of scrapers (25), and the top of the plurality of scrapers (25) is fixedly connected with a positioning ring (26).

3. The biomass aerogel production solvent recovery apparatus according to claim 2, wherein: The filtering distillation mechanism (4) comprises a distillation tank (41), the left side of the distillation tank (41) is fixedly connected with a flow guide pipe (42), the outside of the flow guide pipe (42) is provided with a control valve (43), and the left side of the flow guide pipe (42) is fixedly connected with a filter plate (44).

4. The biomass aerogel production solvent recovery apparatus according to claim 3, characterized by: The reflux condensation mechanism (5) comprises an air flow pipe (51), the left side of the air flow pipe (51) is fixedly connected with the top of the distillation tank (41), the outside of the air flow pipe (51) is sleeved with a cold water pipe (52), one end of the cold water pipe (52) is fixedly connected with a water inlet pipe (53), the other end of the cold water pipe (52) is fixedly connected with a water outlet pipe (54), and the bottom of the air flow pipe (51) is fixedly connected with a collection tank (55).

5. The biomass aerogel preparation solvent recovery apparatus according to claim 3, characterized by: The right side of the knocking ring (37) is in contact with the left side outside of the distillation tank (41), and the outside of the fixed ring (33) is fixedly connected with the inside top side of the reaction tank (1).

6. The biomass aerogel production solvent recovery apparatus according to claim 1, characterized by: One end of the spring (34) is fixedly connected with the left side of the fixed ring (33), and the other end of the spring (34) is fixedly connected with the right side of the moving ring (35).

7. The biomass aerogel preparation solvent recovery apparatus according to claim 2, characterized by: The left side of the extrusion fan ring (36) is in contact with the outside of the cam (31), the outside of the scraper (25) is slidably connected in the inside of the reaction tank (1), and the inside of the cam (31) is fixedly connected with the outside of the driving shaft (22).

8. The biomass aerogel preparation solvent recovery apparatus according to claim 3, characterized by: The left side of the flow guide pipe (42) is fixedly connected to the right side of the inside of the reaction tank (1), and the outside of the positioning ring (26) is rotatably connected to the inside of the reaction tank (1).

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