Distillation device for citral

Abstract

The distillation device comprises a tank body, four heating blocks which are arranged at equal intervals are fixedly mounted in the tank body, rectangular grooves are formed in the heating blocks, a stirring mechanism is mounted in the tank body, a feeding pipe is mounted at the top of the tank body, and a discharging pipe is mounted at the bottom of the tank body. An exhaust part is mounted in the tank body, and a refrigeration box is fixedly connected to the outer side of the tank body. The heating efficiency of the device is greatly improved, when the stirring mechanism stirs liquid, the liquid is turned upwards from the center position, so that the liquid is continuously turned, the heating rate is improved, the dynamic area of the liquid level is increased, the evaporation efficiency is improved, and then the liquid is neatly collected into the heat exchange pipe by the exhaust part and is condensed into liquid through the refrigeration box; and meanwhile, the infusion pump is started to pump the liquid into the collecting box, so that the device has the advantages that the liquid heating contact area is effectively increased, the heating efficiency is improved, and the evaporation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of citral preparation, in particular to a distillation device for citral. Background Art

[0002] Citral is a colorless or slightly yellowish liquid with a strong lemon aroma and no optical activity. It has two isomers, cis and trans. When treated with sodium bisulfite, the cis form has very little solubility, while the trans form has great solubility, so the two can be separated. It is one of the most important representatives of open-chain monoterpenes and is mainly found in Litsea cubeba oil. Natural citral is a mixture of two geometric isomers. Citral can be separated from essential oils, and the content of natural citral in Litsea cubeba oil is 70% to 80%.

[0003] Distillation equipment is a separation technology performed under high vacuum conditions. It features low distillation temperatures, high vacuum levels, short heating times, and a high degree of separation. The separation process is irreversible, with no boiling or bubbling. It is particularly well-suited for separating high-boiling, heat-sensitive, and easily oxidized substances. It has been widely used in various industries, including the extraction of vitamins and active ingredients from traditional Chinese medicines in the pharmaceutical industry, petrochemicals, food, cosmetics, and agriculture.

[0004] At present, the preparation of citral is generally carried out using a distillation device, and heating is required during the distillation process. Existing equipment generally installs an electric heating device inside the device for heating. However, since the volume of the electric heating device is generally located at the bottom of the device and the contact area with the liquid is small, the heating efficiency is low, resulting in low evaporation efficiency. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a distillation device for citral to solve the background technology problems.

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

[0007] A distillation device for citral comprises a tank body, four equidistantly arranged heating blocks are fixedly installed inside the tank body, rectangular grooves are provided on the heating blocks, a stirring mechanism is installed inside the tank body, a feed pipe is installed on the top of the tank body, an exhaust piece is installed inside the tank body, a refrigeration box is fixedly connected to the outside of the tank body, a heat exchange pipe is fixedly installed inside the refrigeration box, the top end of the heat exchange pipe is plugged into the inside of the tank body and is fixedly connected to the exhaust piece, the other end of the heat exchange pipe extends to the outside of the refrigeration box and is fixedly connected to a liquid pump, and the output end of the liquid pump is fixedly connected to a collecting box.

[0008] As a further description of the above technical solution: the stirring mechanism includes a drive motor, a transmission rod, an auger rod and multiple stirring rods, the drive motor is fixedly mounted on the tank body, the output end of the drive motor is fixedly connected to the transmission rod through a coupling, the bottom end of the transmission rod extends to the interior of the tank body and is fixedly connected to the auger rod, and the stirring rod is fixedly mounted to the outside of the auger rod.

[0009] As a further description of the above technical solution: an inverted cone block is fixedly connected to the outer side of the transmission rod, and the inverted cone block is located at the top end of the auger rod.

[0010] As a further description of the above technical solution: fins arranged at equal distances are fixedly mounted on the inner side surface of the rectangular groove, and a protective mesh cover is fixedly connected to the opening of the rectangular groove.

[0011] As a further description of the above technical solution: the exhaust component includes an annular tube and two sets of adsorption covers, the outer side of the annular tube is fixedly connected to the interior of the tank body, and the adsorption covers are respectively installed in an annular shape to the bottom and the inward side of the annular tube.

[0012] As a further description of the above technical solution: a discharge valve pipe is fixedly connected to the bottom of the tank body, and a water inlet valve is fixedly connected to the left side of the tank body.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] This solution increases the dynamic area of ​​the liquid through a stirring mechanism, and is used in conjunction with a heating block and fins, thereby achieving the advantage of effectively increasing the liquid heating contact area and improving the heating efficiency, thereby improving the evaporation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0016] Figure 2 It is a partial three-dimensional structural diagram of the utility model;

[0017] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4 It is a schematic diagram of the top cross-sectional structure of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Tank body; 2. Heating block; 3. Rectangular trough; 31. Fins; 32. Protective mesh cover; 4. Stirring mechanism; 41. Drive motor; 42. Transmission rod; 421. Inverted cone block; 43. Auger rod; 44. Stirring rod; 5. Feed pipe; 6. Exhaust member; 61. Annular pipe; 62. Adsorption hood; 7. Refrigeration box; 8. Heat exchange tube; 9. Collection box; 10. Discharge valve pipe; 11. Water inlet valve; 12. Liquid pump. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] See also Figures 1 to 4 In the utility model, a distillation device for citral includes a tank body 1, four equidistantly arranged heating blocks 2 are fixedly installed inside the tank body 1, and rectangular grooves 3 are opened on the heating blocks 2. A stirring mechanism 4 is installed inside the tank body 1, a feeding pipe 5 is installed on the top of the tank body 1, and an exhaust piece 6 is installed inside the tank body 1. The outside of the tank body 1 is fixedly connected to a refrigeration box 7, and a heat exchange pipe 8 is fixedly installed inside the refrigeration box 7. The top end of the heat exchange pipe 8 is inserted into the interior of the tank body 1 and is fixedly connected to the exhaust piece 6. The other end of the heat exchange pipe 8 extends to the outside of the refrigeration box 7 and is fixedly connected to a liquid pump 12. The output end of the liquid pump 12 is fixedly connected to a collecting box 9.

[0023] In the present invention, the tank body 1 is used as the main body of the device. When in use, the raw materials are first added to the inside through the feeding pipe 5, and then water is injected, and the liquid level submerges the heating block 2, and then the heating block 2 is started to heat the mixed liquid to evaporate it, and at the same time, the stirring mechanism 4 is started to stir it so that the material mixing is more complete and the evaporation efficiency of the mixed liquid is improved. Since the heating block 2 is located inside the tank body 1 and is submerged below the liquid level, the contact area of ​​the liquid surface is increased. At the same time, the rectangular groove 3 is used to further increase the contact area between the two, so that the heating efficiency of the device is greatly improved, and the stirring mechanism 4 turns the liquid upward at the center position when stirring, so that the liquid is continuously turned over. Roll, increase the heating rate, and increase the dynamic area of ​​the liquid surface to improve the evaporation efficiency, and then be neatly collected by the exhaust part 6 into the heat exchange tube 8, and condensed into liquid through the refrigeration box 7, and at the same time start the liquid pump 12 to pump the liquid into the collection box 9, thereby achieving the advantage of effectively increasing the liquid heating contact area and improving the heating efficiency to achieve the improvement of evaporation efficiency, solving the problem of heating in the distillation process in the prior art. The existing equipment generally sets an electric heating device inside the device for heating, and since the volume of the electric heating device is generally located at the bottom of the device and the contact area with the liquid is small, the heating efficiency is low, resulting in low evaporation efficiency.

[0024] See also Figure 1, wherein: the stirring mechanism 4 includes a driving motor 41, a transmission rod 42, an auger rod 43 and multiple stirring rods 44, the driving motor 41 is fixedly mounted on the tank body 1, the output end of the driving motor 41 is fixedly connected to the transmission rod 42 through a coupling, the bottom end of the transmission rod 42 extends to the interior of the tank body 1 and is fixedly connected to the auger rod 43, and the stirring rod 44 is fixedly mounted to the outside of the auger rod 43.

[0025] In the present invention, the driving motor 41 is started to drive the transmission rod 42 to rotate, thereby driving the auger rod 43 and the stirring rod 44 to stir the liquid, thereby improving the heating efficiency and the uniformity of material mixing.

[0026] See also Figure 1 , wherein: the outer side of the transmission rod 42 is fixedly connected with an inverted cone block 421, and the inverted cone block 421 is located at the top end of the auger rod 43.

[0027] In the present invention, the inverted conical block 421 allows the liquid driven by the auger rod 43 to be dispersed and guided, thereby preventing the liquid from spraying directly upwards and making the dynamic area of ​​the liquid larger, thereby improving the evaporation efficiency.

[0028] See also Figure 1 and Figure 3 , wherein: fins 31 arranged at equal distances are fixedly mounted on the inner side surface of the rectangular groove 3, and a protective mesh cover 32 is fixedly connected to the opening of the rectangular groove 3.

[0029] In the present invention, the contact area between the liquid and the heating block 2 is increased by the fins 31, thereby improving the heating efficiency. At the same time, the protective mesh cover 32 is used to prevent the raw material solid from accumulating inside the fins 31, thereby maintaining and improving the mixing efficiency.

[0030] See also Figure 1 , wherein: the exhaust member 6 includes an annular tube 61 and two sets of adsorption covers 62, the outer side of the annular tube 61 is fixedly connected to the interior of the tank body 1, and the adsorption covers 62 are respectively annularly installed to the bottom and one inward side of the annular tube 61.

[0031] In the present invention, the two groups of adsorption covers 62 on the annular tube 61 are oriented downward and inward respectively, so that the adsorption efficiency of steam is faster and the steam output efficiency is improved.

[0032] See also Figure 1 , wherein: a discharge valve pipe 10 is fixedly connected to the bottom of the tank body 1, and a water inlet valve 11 is fixedly connected to the left side of the tank body 1.

[0033] In the utility model, liquid is conveniently discharged through the discharge valve pipe 10, and water is conveniently injected through the water inlet valve 11, which is easy to operate.

[0034] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A distillation device for citral, comprising a tank (1), characterized in that: Four equidistantly arranged heating blocks (2) are fixedly installed inside the tank body (1), and rectangular grooves (3) are provided on each of the heating blocks (2). A stirring mechanism (4) is installed inside the tank body (1), a feeding pipe (5) is installed on the top of the tank body (1), and an exhaust component (6) is installed inside the tank body (1). The outside of the tank body (1) is fixedly connected to a refrigeration box (7), and a heat exchange tube (8) is fixedly installed inside the refrigeration box (7). The top end of the heat exchange tube (8) is plugged into the inside of the tank body (1) and is fixedly connected to the exhaust component (6). The other end of the heat exchange tube (8) extends to the outside of the refrigeration box (7) and is fixedly connected to a liquid extraction pump (12). The output end of the liquid extraction pump (12) is fixedly connected to a collection box (9).

2. A distillation apparatus for citral according to claim 1, characterized in that: The stirring mechanism (4) comprises a driving motor (41), a transmission rod (42), an auger rod (43) and a plurality of stirring rods (44); the driving motor (41) is fixedly mounted on the tank body (1); the output end of the driving motor (41) is fixedly connected to the driving rod (42) via a coupling; the bottom end of the driving rod (42) extends into the interior of the tank body (1) and is fixedly connected to the auger rod (43); and the stirring rod (44) is fixedly mounted to the outside of the auger rod (43).

3. A distillation apparatus for citral according to claim 2, characterized in that: An inverted conical block (421) is fixedly connected to the outer side of the transmission rod (42), and the inverted conical block (421) is located at the top end of the auger rod (43).

4. A distillation apparatus for citral according to claim 1, characterized in that: Fins (31) arranged at equal distances are fixedly mounted on the inner side surface of the rectangular groove (3), and a protective mesh cover (32) is fixedly connected to the opening of the rectangular groove (3).

5. A distillation apparatus for citral according to claim 1, characterized in that: The exhaust member (6) comprises an annular tube (61) and two sets of adsorption covers (62). The outer side of the annular tube (61) is fixedly connected to the interior of the tank body (1), and the adsorption covers (62) are respectively annularly mounted on the bottom and an inward side of the annular tube (61).

6. A distillation apparatus for citral according to claim 1, characterized in that: A discharge valve pipe (10) is fixedly connected to the bottom of the tank body (1), and a water inlet valve (11) is fixedly connected to the left side of the tank body (1).

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