Continuous extraction sleeve and extraction tube group

Abstract

The utility model discloses a continuous extraction casing pipe and an extraction pipe group. The continuous extraction casing pipe comprises an extraction pipe, and a spiral shaft is coaxially arranged in the extraction pipe; a supporting frame is arranged in the extraction pipe, a through hole is formed in the supporting frame, and the spiral shaft penetrates through the through hole; an outer sleeve is arranged outside the extraction pipe, a sealing cavity for storing circulating water is formed between the outer sleeve and the extraction pipe, and the sealing cavity is provided with a circulating water inlet and a circulating water outlet; according to the continuous extraction device, spices and an extraction solvent can be continuously added into and discharged from the continuous extraction sleeve, so that the continuous extraction effect is achieved, and the production efficiency can be greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of spice extraction equipment, in particular to a continuous extraction sleeve and an extraction tube group. Background Art

[0002] Spice extraction refers to soaking spices in solvents and extracting spice essential oils from spices under certain process conditions. Traditional spice extraction uses an extraction kettle, which is used to load solvents and spices into the extraction kettle. After the extraction is completed, the residue and solvent mixed with spice essential oils are removed.

[0003] This extraction method can effectively extract the spice essential oils from the spices, but the cleaning of the residue is usually done manually, which takes a lot of time and affects production efficiency. Utility Model Content

[0004] The utility model aims to provide a continuous extraction sleeve and an extraction tube group to realize the continuous production of spice extraction and improve production efficiency.

[0005] The utility model adopts the following technical scheme: a continuous extraction sleeve, comprising an extraction tube, in which a spiral shaft is coaxially arranged;

[0006] A support frame is arranged in the extraction tube, and a through hole is opened in the support frame, and the through hole is used for the spiral shaft to pass through;

[0007] An outer sleeve is arranged outside the extraction tube, and a sealed cavity for storing circulating water is formed between the outer sleeve and the extraction tube. The sealed cavity has a circulating water inlet and a circulating water outlet.

[0008] Furthermore, the spiral shaft includes a shaft body and spiral blades arranged around the outer periphery of the shaft body, and a gap is provided between the outer periphery of the spiral blades and the inner wall of the extraction tube.

[0009] Furthermore, filtering holes are arranged on the spiral blades.

[0010] Furthermore, a first spline is provided at the front end of the screw shaft, and a second spline is provided at the rear end of the screw shaft.

[0011] Furthermore, the support frame includes a support rod radially arranged along the extraction tube, and a through hole is opened in the middle of the support rod.

[0012] Another technical solution of the utility model: a continuous extraction tube set, comprising a plurality of the above-mentioned continuous extraction sleeves;

[0013] The continuous extraction sleeve at the front end of the continuous extraction tube group is provided with a spice inlet and a solvent outlet;

[0014] The continuous extraction sleeve in the middle of the continuous extraction tube group is provided with a solvent inlet;

[0015] The continuous extraction sleeve at the rear end of the continuous extraction tube group is provided with a slag outlet.

[0016] Furthermore, it comprises a plurality of continuous extraction sleeves which are arranged obliquely.

[0017] Furthermore, the front ends of the plurality of inclined continuous extraction sleeves are connected to the plurality of horizontally arranged continuous extraction sleeves.

[0018] Furthermore, the spice inlet is connected to a feeding mechanism; the slag outlet is connected to a discharging mechanism.

[0019] Furthermore, the discharging mechanism is connected with a steam inlet and a solvent steam outlet pipeline.

[0020] The beneficial effect of the utility model is that the utility model can continuously add and discharge spices and extraction solvents into and out of the continuous extraction sleeve by using the continuous extraction sleeve, thereby achieving the effect of continuous extraction and greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a continuous extraction sleeve according to an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the connection method of adjacent continuous extraction sleeves in an embodiment of the utility model;

[0023] Figure 3 It is a structural schematic diagram of a continuous extraction sleeve assembly in an embodiment of the utility model.

[0024] Wherein: 10. extraction tube; 12. support frame; 13. connection flange; 14. circulating water outlet; 15. spiral shaft; 16. first spline; 17. second spline; 18. outer sleeve; 19. circulating water inlet;

[0025] 20. Solvent inlet pipeline; 30. Circulating water inlet pipeline; 40. Circulating water outlet pipeline; 50. First solvent outlet pipeline; 60. Solvent steam outlet pipeline; 70. Motor; 80. Feeding mechanism; 90. Discharging mechanism. DETAILED DESCRIPTION

[0026] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0027] The utility model discloses a continuous extraction sleeve, such as Figure 1 and Figure 2As shown, it includes an extraction tube 10, in which a spiral shaft 15 is coaxially arranged; a support frame 12 is arranged in the extraction tube 10, and the support frame 12 is provided with a through hole, and the through hole is used for the spiral shaft 15 to pass through; an outer sleeve 18 is arranged outside the extraction tube 10, and a sealed cavity for storing circulating water is formed between the outer sleeve 18 and the extraction tube 10, and the sealed cavity has a circulating water inlet 19 and a circulating water outlet 14.

[0028] The utility model can continuously add and discharge spices and extraction solvents into and out of the continuous extraction sleeve by using the continuous extraction sleeve, thereby achieving the effect of continuous extraction and greatly improving production efficiency. In addition, by injecting circulating water with a certain temperature into the sealed cavity, the temperature in the extraction tube can be kept stable in the process requirements during the extraction process, thereby improving the extraction rate.

[0029] The spiral shaft 15 includes a shaft body and spiral blades arranged around the outer periphery of the shaft body, and there is a gap between the outer periphery of the spiral blade and the inner wall of the extraction tube 10. The spiral blade extends from one end of the shaft body to the other end. When the spiral shaft 15 rotates, the spiral blade can drive the spices in the extraction tube 10 to move slowly and finally be discharged from the end. The gap between the spiral blade and the inner wall of the extraction tube 10 can avoid interference between the spiral blade and the extraction tube 10, and also help the flow of the solvent in the extraction tube 10.

[0030] The spiral blades are provided with filter holes, and the aperture of the filter holes can be designed according to the particle size of the spices to ensure that the spices do not pass through the filter holes, thereby slowly moving under the action of the spiral blades to achieve the purpose of extraction.

[0031] The front end of the screw shaft 15 is provided with a first spline 16, and the rear end of the screw shaft 15 is provided with a second spline 17. The spline connection can increase the stability and balance of power transmission. Moreover, the spline connection method allows a certain gap, which can reduce the difficulty of installing the entire device.

[0032] The support frame 12 includes a support rod arranged along the radial direction of the extraction tube 10, and a through hole is opened in the middle of the support rod. In another embodiment, the support rod can also support the spiral shaft through a spline.

[0033] As a specific implementation form, the support rod is located at the front end of the extraction tube 10, and a through hole is opened in the middle thereof for the first spline 16 to pass through, so that when the spiral shaft 15 rotates, it will not be disturbed by the support rod. At the same time, for lubrication, a lubricant can be applied to the through hole of the support rod. In addition, since the support rod is immersed in the solvent for a long time, a support frame is designed inside it, and a polytetrafluoroethylene rubber sleeve is coated on the outside.

[0034] In addition, connecting flanges 13 are designed at both ends of each continuous extraction tube to achieve the connection of adjacent continuous extraction tubes.

[0035] The utility model also discloses a continuous extraction tube set, such as Figure 3 As shown, it includes several continuous extraction sleeves of the above type; the continuous extraction sleeve at the front end of the continuous extraction tube group is provided with a spice inlet and a solvent outlet; the continuous extraction sleeve in the middle of the continuous extraction tube group is provided with a solvent inlet; the continuous extraction sleeve at the rear end of the continuous extraction tube group is provided with a slag outlet. The continuous extraction sleeves can be assembled into a continuous extraction tube group by combining them, thereby realizing a specific extraction process.

[0036] In one embodiment, the continuous extraction tube group includes a plurality of continuous extraction sleeves arranged obliquely. The inclined arrangement facilitates the adjustment of the solvent height inside the sleeves, so that the solvent height is maintained at a certain level. The spices below the height are soaked in the solvent for extraction, and the spices above the height are drained of the solvent during the movement, thereby reducing the solvent residue therein as much as possible.

[0037] In another embodiment, the front ends of the plurality of inclined continuous extraction sleeves are connected to a plurality of horizontally arranged continuous extraction sleeves. Due to the limitation of the inclination angle, if all the continuous extraction sleeves are placed at an inclination, it will increase the difficulty of equipment installation. Therefore, adding a plurality of horizontally arranged continuous extraction sleeves can reduce the difficulty of installation and allow sufficient time for the spices and solvent to be extracted.

[0038] At the same time, a motor 70 is installed at one end to drive the screw shaft 15 to rotate. The screw shaft 15 of the inclined section and the screw shaft 15 of the horizontal section are connected by a universal coupling.

[0039] The spice inlet is connected to a feeding mechanism 80; the slag outlet is connected to a discharging mechanism 90. The discharging mechanism 90 is connected to a steam inlet and a solvent vapor outlet pipeline 60. In this embodiment, the continuous extraction sleeve at the end is lowered downward to open a slag outlet, and the slag falls under the action of gravity and enters the discharging mechanism 90. Usually, the discharging mechanism can be a spiral feeder or other equipment, and steam is introduced into the inside of the discharging mechanism, so that a small amount of solvent contained in the slag is heated and vaporized, and enters the solvent vapor outlet pipeline 60 together with the steam, and then enters the subsequent process through the condenser and the like.

[0040] The working process of the utility model is as follows:

[0041] First, circulating water of suitable temperature is introduced into the sealed cavity through the circulating water inlet pipe 30, and the circulating water outlet of the previous extraction tube 10 is connected with the circulating water inlet 19 of the next extraction tube 10, so that the sealed spaces of all extraction tubes 10 are connected as a whole and filled with circulating water. The circulating water outlet pipe 40 is connected to the extraction sleeve at the end of the extraction tube group. The temperature of the circulating water just entering the sealed cavity is relatively high, which is conducive to maintaining the overall temperature of the extraction process. When the temperature of the circulating water is relatively low at the end, it has little effect on the extraction process.

[0042] When the temperature in the entire extraction tube group reaches a predetermined temperature, solvent is added from the solvent inlet pipeline 20, and spices (usually in powder form) are added from the feeding mechanism 80. Figure 3 As shown, the solvent flows from the right to the left, and the spices move from the left to the right, and the two form a "countercurrent" state. In this state, the spice essential oil is extracted from the spices to complete the extraction.

[0043] When the spices move to above the solvent liquid surface, they become slag, and the solvent in them will flow out of the slag. The slag becomes drier and drier, and contains less and less solvent, until it reaches the slag outlet and falls into the discharging mechanism 90. Steam is introduced into the discharging mechanism 90 to vaporize the trace solvent in the slag and send it to the subsequent process along with the steam from the solvent steam outlet pipeline 60, so as to further reduce the solvent in the slag.

[0044] In addition, the solvent containing spice essential oil will be discharged from the first solvent outlet pipeline 50 and sent to the subsequent process for treatment.

Claims

1. A continuous extraction sleeve, characterized in that: It comprises an extraction tube (10), wherein a spiral shaft (15) is coaxially arranged inside the extraction tube (10); A support frame (12) is arranged in the extraction tube (10), and the support frame (12) is provided with a through hole, wherein the through hole is used for the spiral shaft (15) to pass through; An outer sleeve (18) is arranged outside the extraction tube (10), and a sealed cavity for storing circulating water is formed between the outer sleeve (18) and the extraction tube (10), wherein the sealed cavity has a circulating water inlet (19) and a circulating water outlet (14).

2. A continuous extraction sleeve as claimed in claim 1, characterized in that: The spiral shaft (15) comprises a shaft body and spiral blades arranged around the outer periphery of the shaft body, and a gap is provided between the outer periphery of the spiral blades and the inner wall of the extraction tube (10).

3. A continuous extraction sleeve as claimed in claim 2, characterized in that: The spiral blade is provided with filtering holes.

4. A continuous extraction sleeve as claimed in claim 2, characterized in that: The front end of the screw shaft (15) is provided with a first spline (16), and the rear end of the screw shaft (15) is provided with a second spline (17).

5. A continuous extraction sleeve as claimed in claim 1, characterized in that: The support frame (12) comprises a support rod radially arranged along the extraction tube (10), and the through hole is opened in the middle of the support rod.

6. A continuous extraction tube set, characterized in that: A continuous extraction sleeve comprising any one of claims 1 to 5; The continuous extraction sleeve at the front end of the continuous extraction tube group is provided with a spice inlet and a solvent outlet; The continuous extraction sleeve in the middle of the continuous extraction tube group is provided with a solvent inlet; The continuous extraction sleeve at the rear end of the continuous extraction tube group is provided with a slag outlet.

7. A continuous extraction tube assembly as claimed in claim 6, characterized in that: It includes a plurality of continuous extraction sleeves which are arranged obliquely.

8. A continuous extraction tube assembly as claimed in claim 7, characterized in that: The front ends of the plurality of inclined continuous extraction sleeves are connected with a plurality of horizontally arranged continuous extraction sleeves.

9. A continuous extraction tube assembly as claimed in claim 6, characterized in that: The spice inlet is connected to a feeding mechanism (80); the slag outlet is connected to a discharging mechanism (90).

10. A continuous extraction tube assembly as claimed in claim 9, characterized in that: The discharging mechanism (90) is connected to a steam inlet and a solvent steam outlet pipeline (60).

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