Small pilot plant test reflux extraction equipment

Abstract

The utility model belongs to the technical field of hot reflux extraction equipment, and discloses small pilot plant test reflux extraction equipment which comprises a reaction kettle, a heating plate is attached to the inner wall of the reaction kettle, a steam outlet pipe is fixedly connected to the upper portion of the reaction kettle, a steam distributing piece is fixedly connected to the interior of the steam outlet pipe, and a steam outlet is formed in the steam distributing piece. A connecting plate is fixedly connected to one side of the steam distributing piece, two condensation pipes are connected into the connecting plate in a penetrating mode, a condenser is connected to the lower portions of the condensation pipes in a penetrating mode, a water outlet is fixedly connected to the outer side of the upper portion of the condenser, and a water inlet is fixedly connected to the outer side of the lower portion of the condenser. By means of the scheme, the problems that due to the fact that the structure is too single, the condensation effect is not obvious after long-time use, the extraction efficiency is reduced, the evaporation reaction cost is increased, and practicability is not high are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot reflux extraction equipment, in particular to small-scale pilot reflux extraction equipment. Background Art

[0002] In the prior art, the steam condensed by the liquid heated in the reactor is mostly condensed by a single condenser, and the condensation effect is not obvious, resulting in increased costs. The steam bubbles generated inside may be adsorbed on the inner wall of the reactor, resulting in a low steam rising rate. Therefore, it is necessary to improve the heating, evaporation and condensation equipment.

[0003] At the same time, the application number is 202121329016.9, which is a steam cooling and reflux device for an extraction tank. The steam cooling and reflux device is arranged on the cover plate of the extraction tank. The steam cooling and reflux device includes a tank body with an opening at the lower end, an upflow condensation chamber arranged inside the tank body, and a plurality of corrugated plates arranged at staggered intervals inside the condensation chamber. The plurality of corrugated plates are all inclined downward, and the orthographic projection of the corrugated plate on the cover plate intersects with the orthographic projection of the corrugated plate on the cover plate and the adjacent corrugated plate on the non-same side. The top of the condensation chamber is an upwardly protruding arc surface. The utility model has a simple structure, can effectively improve the yield of the target extract, and effectively solve the problem of low condensation efficiency of traditional condensers.

[0004] However, in the implementation of relevant technologies, the following problems were found: when the staff refluxed and extracted the liquid, there was only one condenser. After a large amount of steam poured in, all the steam could not be condensed. After long-term use, water droplets on the inner wall of the tube would affect the condensation effect, resulting in a reduction in the condensation effect and a reduction in the extraction efficiency.

[0005] To this end, we proposed a small-scale pilot reflux extraction equipment. Utility Model Content

[0006] In order to solve the problems raised in the above background technology, the utility model provides a small pilot reflux extraction device, which has the advantages of obvious condensation effect and high extraction rate.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a small-scale pilot reflux extraction equipment, comprising a reactor, the inner wall of which is fitted with a heating plate, a steam outlet pipe fixedly connected to the upper part of the reactor, a steam separator fixedly connected to the interior of the steam outlet pipe, a connecting plate fixedly connected to one side of the steam separator, two condensing tubes interspersedly connected to the interior of the connecting plate, a condenser interspersedly connected to the lower part of the condensing tube, a water outlet fixedly connected to the upper outer side of the condenser, a water inlet fixedly connected to the lower outer side of the condenser, and a reflux pipe interspersedly connected to the lower end of the condenser.

[0008] Preferably, the top of the reactor is fixedly connected to a motor, the end of the output shaft of the motor is fixedly connected to a rotating rod, the bottom end of the rotating rod is fixedly connected to a scraper block, the lower part of the rotating rod is fixedly connected to a connecting rod, and one side of the connecting rod is fixedly connected to a scraper.

[0009] Preferably, a thermometer is embedded in the upper part of the reactor, and a pressure gauge is fixedly connected to the top of the reactor.

[0010] Preferably, a support ring sleeve is fixedly connected to the outer side of the reactor, and four sets of electric push rods are fixedly connected to the bottom end of the support ring sleeve.

[0011] Preferably, the bottom end of the electric push rod is fixedly connected to a base, and the bottom end of the base is fixedly connected to a brake wheel.

[0012] Preferably, a plurality of groups of stirring rods are fixedly connected to the outer side of the rotating rod, and the stirring rods are spirally distributed from top to bottom.

[0013] Preferably, the cross-sectional area of ​​the side of the scraper and the scraper block in contact with the inner wall of the heating plate is the same as the cross-sectional area of ​​the heating plate.

[0014] Preferably, a liquid outlet pipe is fixedly connected to the lower portion of the reactor, and a valve is provided inside the liquid outlet pipe.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model heats the liquid inside the reactor by heating the heating plate which is closely connected to the inner wall of the reactor. The generated steam flows out through the steam outlet pipe on the upper part of the reactor. The steam is divided into at least two groups under the action of the steam separator. The steam passes through the inside of the condenser pipe which is connected with the connecting plate. At this time, part of the steam is properly cooled down under the action of the air. The steam passes through the inside of the condenser and is condensed under the action of cold water. The steam flows into the reflux pipe and flows into the reactor through the reflux pipe for secondary heating. The steam is condensed and refluxed through at least two groups of condensation modules. The condensation effect is obvious and the condensation efficiency is improved.

[0017] 2. The utility model drives the rotating rod to rotate through a motor, and the rotating rod drives the connecting rod and the scraper to rotate, and the connecting rod drives the scraper to rotate, so as to prevent the sediment produced after evaporation on the inner wall of the heated bottom end from being adsorbed on the inner wall, resulting in uneven heating and poor steam effect produced by evaporation, thereby indirectly reducing the cooling reflux rate and allowing the liquid after condensation and reflux to fully contact with the liquid inside the reactor to make the internal temperature uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cutaway structure of the reactor of the utility model;

[0020] Figure 3 This is a schematic diagram of the cutaway structure of the steam outlet pipe of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the mobile lifting module of the utility model.

[0022] In the figure: 1. Reactor; 2. Heating plate; 3. Steam outlet pipe; 4. Steam separator; 5. Connecting plate; 6. Condenser; 7. Condenser; 8. Water inlet; 9. Water outlet; 10. Reflux pipe; 11. Motor; 12. Rotating rod; 13. Stirring rod; 14. Connecting rod; 15. Scraper; 16. Scraper block; 17. Liquid outlet pipe; 18. Valve; 19. Support ring; 20. Electric push rod; 21. Base; 22. Brake wheel; 23. Pressure gauge; 24. Thermometer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 4 As shown, the utility model provides a small-scale pilot reflux extraction equipment, including a reactor 1, an inner wall of the reactor 1 is fitted with a heating plate 2, and the heating plate 2 is fitted with the inner wall of the reactor 1. Compared with traditional heaters, it has the characteristics of a wide heating range and uniform heating of the internal liquid. The upper part of the reactor 1 is fixedly connected with a steam outlet pipe 3, the interior of the steam outlet pipe 3 is fixedly connected with a steam separator 4, one side of the steam separator 4 is fixedly connected with a connecting plate 5, and the interior of the connecting plate 5 is interspersed with two condensing tubes 6. The length of the condensing tube 6 can be appropriately increased to make the steam fully contact with the external environment, increase the condensation effect, and reduce the cost. The lower part of the condensing tube 6 is interspersed with a condenser 7, the upper outer side of the condenser 7 is fixedly connected with a water outlet 9, and the lower outer side of the condenser 7 is fixedly connected with a water inlet 8. During the condensation process, cold water flows in from the water inlet 8 and then flows out from the water outlet 9 to achieve the condensation effect. The lower end of the condenser 7 is interspersed with a reflux pipe 10, and the reflux pipe 10 is made long enough to condense a small amount of uncondensed steam.

[0025] Specifically, the top of the reactor 1 is fixedly connected to a motor 11, the end of the output shaft of the motor 11 is fixedly connected to a rotating rod 12, the bottom end of the rotating rod 12 is fixedly connected to a scraper block 16, the bottom end of the scraper block 16 is in contact with the bottom surface of the heating plate 2, which helps to prevent liquid crystals from condensing on the bottom surface of the heating plate 2 and causing uneven heating. The lower part of the rotating rod 12 is fixedly connected to a connecting rod 14, and one side of the connecting rod 14 is fixedly connected to a scraper plate 15, which can scrape off the crystals condensed on the side.

[0026] Furthermore, a thermometer 24 is embedded in the upper part of the reactor 1, and a pressure gauge 23 is fixedly connected to the top of the reactor 1, which can observe the internal temperature and air pressure in real time to prevent the liquid from being damaged by excessive temperature and to prevent the risk of explosion caused by excessive pressure.

[0027] Furthermore, a support ring sleeve 19 is fixedly connected to the outer side of the reactor 1, and four sets of electric push rods 20 are fixedly connected to the bottom end of the support ring sleeve 19, so that the reactor 1 can be raised when the height of the evaporation device is not enough.

[0028] It is worth noting that the bottom end of the electric push rod 20 is fixedly connected to the base 21 , and the bottom end of the base 21 is fixedly connected to the brake wheel 22 .

[0029] It is worth noting that a plurality of stirring rods 13 are fixedly connected to the outer side of the rotating rod 12. The stirring rods 13 are spirally distributed from top to bottom to stir the internal liquid, so that the liquid is heated evenly and the steam bubbles are accelerated to rise.

[0030] It is worth mentioning that the cross-sectional area of ​​the side where the scraper 15 and the scraper block 16 contact the inner wall of the heating plate 2 is the same as the cross-sectional area of ​​the heating plate 2, which is conducive to cleaning the inner wall and preventing the crystals after evaporation from condensing on the surface of the heating plate 2, causing uneven heating of the internal liquid and reducing the evaporation efficiency.

[0031] It is worth emphasizing that a liquid outlet pipe 17 is fixedly connected to the lower part of the reactor 1, and a valve 18 is arranged inside the liquid outlet pipe 17, so that the liquid after evaporation and reflux can be recovered at any time.

[0032] Among them, the motor 11, the electric push rod 20, the pressure gauge 23 and the thermometer 24 are prior arts and will not be described in detail. At the same time, the utility model also includes a power supply, a controller and a switch, which are not the main technical points of the patent and will not be described in detail. The "front, back, left and right" perspectives of the device are as follows: Figure 1 The direction shown in the figure is used as the reference.

[0033] Working principle: The staff first pushes the equipment to a suitable position using the brake wheel 22, and then starts the four electric push rods 20 fixedly connected to the top of the base 21 to lift the reactor 1 fixedly connected to the support ring sleeve 19 to a suitable height, and starts the heating plate 2 to heat the liquid in the reactor 1. The motor 11 is started, and the motor 11 drives the rotating rod 12 to rotate. The rotating rod 12 drives the stirring rod 13, the connecting rod 14 and the scraper 16 to rotate to stir the internal liquid. The connecting rod 14 rotates to drive the scraper 15 to prevent the sediment generated after evaporation from being adsorbed on the inner wall of the bottom end during the heating and evaporation process, resulting in uneven heating. The steam generated by evaporation is not effective, which indirectly reduces the cooling reflux rate and allows the liquid after condensation and reflux to fully contact with the liquid inside the reactor 1. The internal temperature is made uniform, and the generated steam flows out through the steam outlet pipe 3 at the upper part of the reactor 1. Under the action of the steam separator 4, the steam is divided into at least two groups and passes through the inside of the condenser tube 6 connected with the connecting plate 5. At this time, part of the steam is properly cooled down under the action of the air. The steam passes through the inside of the condenser 7, and cold water flows in from the water inlet 8 and flows out from the water outlet 9. Under the action of the cold water, the steam passing through the condenser 7 is condensed. The internal cross-sectional area of ​​the condenser 7 is spherical, which increases the contact area with the cold water. The condensed liquid flows into the reflux pipe 10 and flows into the reactor 1 through the reflux pipe 10 for secondary heating and evaporation, which has a purification effect. The setting of at least two groups of condensation modules is conducive to condensing and reflux of the steam, and the condensation effect is obvious, thereby improving the condensation efficiency.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small pilot reflux extraction device, comprising a reaction kettle (1), characterized in that: A heating plate (2) is provided on the inner wall of the reactor (1); a steam outlet pipe (3) is fixedly connected to the upper part of the reactor (1); a steam separator (4) is fixedly connected to the interior of the steam outlet pipe (3); a connecting plate (5) is fixedly connected to one side of the steam separator (4); two condensing tubes (6) are inserted and connected to the interior of the connecting plate (5); a condenser (7) is inserted and connected to the lower part of the condensing tube (6); a water outlet (9) is fixedly connected to the outer side of the upper part of the condenser (7); a water inlet (8) is fixedly connected to the outer side of the lower part of the condenser (7); and a reflux pipe (10) is inserted and connected to the lower end of the condenser (7).

2. A small pilot reflux extraction device according to claim 1, characterized in that: The top of the reaction kettle (1) is fixedly connected to a motor (11), the end of the output shaft of the motor (11) is fixedly connected to a rotating rod (12), the bottom end of the rotating rod (12) is fixedly connected to a scraper block (16), the lower part of the rotating rod (12) is fixedly connected to a connecting rod (14), and one side of the connecting rod (14) is fixedly connected to a scraper plate (15).

3. A small pilot reflux extraction device according to claim 1, characterized in that: A thermometer (24) is embedded in the upper part of the reaction kettle (1), and a pressure gauge (23) is fixedly connected to the top of the reaction kettle (1).

4. A small pilot reflux extraction device according to claim 1, characterized in that: A support ring sleeve (19) is fixedly connected to the outer side of the reaction kettle (1), and four groups of electric push rods (20) are fixedly connected to the bottom end of the support ring sleeve (19).

5. A small pilot reflux extraction device according to claim 4, characterized in that: The bottom end of the electric push rod (20) is fixedly connected to a base (21), and the bottom end of the base (21) is fixedly connected to a brake wheel (22).

6. A small-scale pilot reflux extraction equipment according to claim 2, characterized in that: A plurality of groups of stirring rods (13) are fixedly connected to the outer side of the rotating rod (12), and the stirring rods (13) are spirally distributed from top to bottom.

7. A small pilot reflux extraction device according to claim 2, characterized in that: The cross-sectional area of ​​the side of the scraper (15) and the scraper block (16) in contact with the inner wall of the heating plate (2) is the same as the cross-sectional area of ​​the heating plate (2).

8. A small pilot reflux extraction device according to claim 1, characterized in that: A liquid outlet pipe (17) is fixedly connected to the lower part of the reaction kettle (1), and a valve (18) is provided inside the liquid outlet pipe (17).

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