Subcritical extraction-extraction tank drainage device

Abstract

The utility model discloses a subcritical extraction-extraction tank liquid discharging device. A subcritical extraction-extraction tank comprises a tank body and a material discharging straight section arranged on a liquid discharging opening in the bottom face of the tank body. The device is arranged on the outer side wall of the discharging straight section. Comprising a liquid outlet pipe, a filter screen structure body and a detachable section straight pipe, the liquid outlet pipe is vertically arranged on the outer side wall of the discharge straight section and is communicated with the discharge straight section; and the liquid outlet pipe is communicated with the dismounting section straight pipe. When the device is used for discharging, the mixed oil liquid in the straight section can be emptied, the residual oil and the residual color value of the discharged material can be effectively controlled to be normal, the high proportion is reduced, and the solvent residual quantity in the discharged material is effectively controlled.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of subcritical extraction, in particular to a subcritical extraction-extraction tank liquid discharge device. BACKGROUND

[0002] In subcritical extraction, after the material in the extraction tank is extracted through soaking, the extracted material is a mixed oil liquid, which is extracted through the sieve plate at the bottom of the extraction tank, but the mixed oil liquid in the straight section of the extraction tank cannot be discharged, so that the residual oil and the residual color value of the material are relatively high after evaporation and desolventization.

[0003] Moreover, the straight section of the extraction tank is not heated, and the volatilization of the liquid solvent requires heat absorption, which causes the temperature of the straight section to be too low and ice to appear on the outside. The too low temperature also causes the solvent residue in the section to be relatively high, which is not conducive to safe production. Therefore, the subcritical extraction-extraction tank liquid discharge device is proposed. CONTENT OF THE INVENTION

[0004] The application provides a subcritical extraction-extraction tank liquid discharge device, which can discharge the mixed oil liquid accumulated in the discharge section, reduce the content of residual oil, residual solvent and residual color value in the material, and improve the extraction yield.

[0005] The application provides a subcritical extraction-extraction tank liquid discharge device, which comprises a tank body and a discharge straight section provided on the liquid discharge port of the bottom surface of the tank body; the device is arranged on the outer side wall of the discharge straight section; and the device comprises a liquid outlet pipe, a filter screen structure and a dismounting section straight pipe.

[0006] The liquid outlet pipe is vertically arranged on the outer side wall of the discharge straight section and is in communication with the discharge straight section;

[0007] The liquid outlet pipe and the dismounting section straight pipe are in communication;

[0008] The filter screen structure is arranged in the liquid outlet pipe;

[0009] The filter screen structure comprises a cylinder structure, one end of the cylinder structure is closed, and the other end is an open end; the open end is clamped between the liquid outlet pipe and the dismounting section straight pipe and is in communication with the dismounting section straight pipe.

[0010] Preferably, the cylinder structure is a filter screen cylinder as a whole, and the pore size of the filter screen cylinder is 80 meshes.

[0011] Preferably, the device comprises a liquid outlet flange, a filter screen flange and a first dismounting section flange; the liquid outlet flange is connected with the extended end of the liquid outlet pipe; the open end of the filter screen structure is arranged at the center of the filter screen flange; and the first dismounting section flange is arranged on one end of the dismounting section straight pipe.

[0012] The liquid outlet flange, the filter screen flange and the first dismounting section flange are connected through bolts.

[0013] Preferably, a through hole is arranged at the center of the filter screen flange; the open end of the filter screen structure is accommodated in the through hole and arranged flush with the end face of the through hole.

[0014] Preferably, a center hole is arranged in the liquid outlet flange; the filter screen structure is arranged in the center hole.

[0015] Preferably, it comprises a second dismounting section flange; the second dismounting section flange is arranged on the extended end of the dismounting section straight pipe.

[0016] Preferably, it comprises a discharging flange; the discharging flange is arranged on the extended end of the discharging straight section.

[0017] The beneficial effects that can be produced by the present application include:

[0018] 1) The subcritical extraction-extraction tank liquid discharge device provided by the present application increases an outlet pipeline at the lower part of the discharging straight section of the extraction tank, and installs a filter screen structure on the outlet pipeline, clamps the filter screen structure with two flanges, and seals with a sealing gasket. A dismountable flange saddle is installed after the filter, which facilitates dismounting and replacing the filter screen structure. When the device is used for discharging, it can ensure that the mixed oil liquid in the straight section is emptied, and can effectively control the residual oil and residual color value of the discharged material to be normal, reduce the proportion of high values, and effectively control the solvent residue in the discharged material. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The subcritical extraction-extraction tank liquid discharge device provided by at least one embodiment of the present application is shown in the schematic diagram;

[0020] LEGEND:

[0021] The discharging straight section 1, the discharging flange 2, the outlet pipeline 3, the filter screen structure 4, the liquid outlet flange 5, the filter screen flange 6, the first dismounting section flange 7, the dismounting section straight pipe 8, and the second dismounting section flange 9. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the application.

[0024] The technical means not described in detail in the present application and not used to solve the technical problems of the present application are set according to common knowledge in the art, and various common knowledge setting methods can be implemented.

[0025] Referring to Figure 1 The subcritical extraction-extraction tank liquid discharge device provided by the present application comprises a discharge straight section 1, a discharge flange 2, a liquid outlet pipe 3, a filter screen structure 4, a liquid outlet flange 5, a filter screen flange 6, a first disassembly section flange 7, a disassembly section straight pipe 8, and a second disassembly section flange 9. The discharge straight section 1 is connected to the tank body bottom discharge port. The discharge flange 2 is arranged on the bottom surface of the discharge straight section 1, which facilitates communication with other equipment. The liquid outlet pipe 3 is arranged on the side wall of the discharge straight section 1. The liquid outlet pipe 3 is arranged perpendicularly to the side wall of the discharge straight section 1 and extends outward. The filter screen structure 4 is arranged in the liquid outlet pipe 3.

[0026] The filter screen structure 4 comprises a cylinder structure. The cylinder structure is provided with filter holes. One end of the cylinder structure is provided with an opening, and the other end is closed. The opening end is arranged towards the disassembly section straight pipe 8 and is connected to the disassembly section straight pipe 8. The opening end of the cylinder structure is arranged in alignment with the through hole in the center of the filter screen flange 6, and is connected to the inner hole wall of the through hole in the center of the filter screen flange 6.

[0027] In a specific embodiment, the cylinder structure is a filter screen cylinder as a whole. The pore size of the filter screen cylinder used is 80 mesh.

[0028] The first disassembly section flange 7 is arranged on one end surface of the disassembly section straight pipe 8. The filter screen flange 6 is arranged between the liquid outlet flange 5 and the first disassembly section flange 7. The flange 6 is clamped between the flange 5 and the first disassembly section flange 7 and is bolted. The filter screen structure 4 is arranged in the liquid outlet pipe 3. The opening end of the filter screen structure 4 penetrates the center hole of the liquid outlet flange 5 and is connected to the through hole of the filter screen flange 6. The first disassembly section flange 7, the pipe 8, and the second disassembly section flange 9 form a detachable section, which facilitates the maintenance and replacement of the filter screen structure 4.

[0029] The second disassembly section flange 9 is arranged on the other end of the disassembly section straight pipe 8.

[0030] When the device is used for discharging, it can ensure that the mixed oil liquid in the straight section is emptied, and the residual oil and residual color value of the discharged material can be effectively controlled to be normal, the proportion of high values is reduced, and the solvent residue in the discharged material is effectively controlled.

[0031] After using the device, the mixed oil in the extraction tank and the mixed oil in the direct section 1 can be discharged at the same time, the material and solvent gas in the extraction tank, when the extraction tank is evaporated, the gas is more volatile than the liquid, and the mixed oil in the other tank is reduced, so that the residual oil and residual color value of the extracted material are reduced. Practice has proved that the test indexes of the material are improved. For example, the marigold leaf lutein oil paste resin is treated, before using the device, due to the distance of 20 cm from the liquid outlet to the tank body, the material and liquid in this section cannot be discharged during the extraction process, which is equivalent to raw material, and is wasted every time, the lutein content in the residue is generally 0.3-0.4G / KG; after the transformation, the lutein content in the residue is generally below 0.3G / KG, the yield is improved, and the economic benefit is very obvious.

[0032] In a specific embodiment, the flanges in the device are made of 304 material, the connecting parts are connected by stainless steel bolts, and the flange parts are connected by polytetrafluoroethylene gaskets, so as to ensure the solvent leakage risk.

[0033] The utility model discloses simple structure, convenient to use, high safety.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A subcritical extraction-extraction tank drain device, the subcritical extraction-extraction tank comprising: The device is characterized in that it is arranged on the outer side wall of the discharge straight section (1); and it comprises a liquid outlet pipe (3), a filter screen structure (4), and a dismounting section straight pipe (8). The liquid outlet pipe (3) is arranged vertically on the outer side wall of the discharge straight section (1) and is in communication with the discharge straight section (1). The liquid outlet pipe (3) and the dismounting section straight pipe (8) are in communication. The filter screen structure (4) is arranged in the liquid outlet pipe (3). The filter screen structure (4) comprises a cylinder structure, one end of which is closed and the other end is an open end; the open end is clamped between the liquid outlet pipe (3) and the dismounting section straight pipe (8) and is in communication with the dismounting section straight pipe (8).

2. The subcritical extraction-extraction tank drain apparatus according to claim 1, wherein, The cylinder structure is a filter screen cylinder, and the pore size of the filter screen cylinder is 80 mesh.

3. The subcritical extraction-extraction tank drain apparatus of claim 1, wherein, The device comprises: a liquid outlet flange (5), a filter screen flange (6), and a first dismounting section flange (7); the liquid outlet flange (5) is connected with the extended end of the liquid outlet pipe (3); the open end of the filter screen structure (4) is arranged and installed at the center of the filter screen flange (6); and the first dismounting section flange (7) is installed on one end of the dismounting section straight pipe (8). The liquid outlet flange (5), the filter screen flange (6), and the first dismounting section flange (7) are connected by bolts.

4. The subcritical extraction-extraction tank drain apparatus of claim 3, wherein, A through hole is arranged at the center of the filter screen flange (6); the open end of the filter screen structure (4) is arranged in the through hole and is arranged flush with the end face of the through hole.

5. The subcritical extraction-extraction tank drain apparatus of claim 3, wherein, A center hole is arranged in the liquid outlet flange (5); the filter screen structure (4) is arranged in the center hole.

6. The subcritical extraction-extraction tank drain apparatus of claim 1, wherein, The device comprises: a second dismounting section flange (9); the second dismounting section flange (9) is arranged on the extended end of the dismounting section straight pipe (8).

7. The subcritical extraction-extraction tank drain apparatus of claim 1, wherein, The device comprises: a discharge flange (2); the discharge flange (2) is arranged on the extended end of the discharge straight section (1).

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