Ethyl acetate recovery system in drying process of extracting effective components from Cyanotis arachnoidea

Abstract

The utility model relates to the technical field of ethyl acetate recovery, in particular to an ethyl acetate recovery system in the drying process of extracting effective components from Cyanotis arachnoidea, which comprises a drying device, an exhaust fan is mounted at the top of the drying device through bolts, an air outlet pipe of the exhaust fan is communicated with a ventilation box, a heat exchange pipe is fixedly connected with an inner cavity of the ventilation box, and the heat exchange pipe is communicated with a heat exchanger. The right side of the ventilation box fixedly communicates with a heating box, the top of the heating box is fixedly connected with an electric heater through bolts in a penetrating mode, the right side of the heating box fixedly communicates with a condensation box, an inner cavity of the condensation box is fixedly connected with a condensation pipe, and the right side of the condensation box fixedly communicates with a connecting air pipe. In the condensation process, the temperature of a medium flowing through the condensation pipe rises, the medium flows into the heat exchange pipe through the connecting water pipe, and waste gas makes contact with the high-temperature heat exchange pipe to be preheated when flowing through the ventilation box, so that heat energy generated in the condensation process can be recycled, and the subsequent waste gas heating time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of ethyl acetate recovery, in particular to an ethyl acetate recovery system during the drying process of extracting active ingredients from Cyanotis arachnoidea C. B. Clarke. Background Technique

[0002] Ethyl acetate, also known as acetic acid ethyl ester, is an organic compound and an ester with a functional group -COOR. It can undergo common reactions of general esters such as alcoholysis, ammonolysis, transesterification, and reduction. It is mainly used as a solvent, food flavor, and cleaning degreaser.

[0003] During the drying process of the active ingredients extracted from Cyanotis arachnoidea C. B. Clarke, waste gas containing ethyl acetate will be generated, which needs to be recovered and reused. Currently, the condensation method is mostly used for recovery. The heat converted after the existing ethyl acetate recovery device condenses high-temperature waste gas cannot preheat the waste gas, resulting in waste of heat energy, prolonging the heating time of the waste gas, and the purification of the waste gas is not thorough enough, resulting in pollution of the atmospheric environment after emission. To solve the above technical problems, we designed an ethyl acetate recovery system during the drying process of extracting active ingredients from Cyanotis arachnoidea C. B. Clarke. Content of the Utility Model

[0004] The purpose of the utility model is to provide an ethyl acetate recovery system during the drying process of extracting active ingredients from Cyanotis arachnoidea C. B. Clarke, which has the advantages of being more energy-saving and environmentally friendly, being able to reuse the heat energy after condensation, saving the heating time of the waste gas, and purifying the waste gas more thoroughly, and solves the problems of being unable to reuse the heat energy after condensation, the unsatisfactory energy-saving and environmental protection effect, and the incomplete purification of the waste gas polluting the atmospheric environment.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An ethyl acetate recovery system during the drying process of extracting active ingredients from Cyanotis arachnoidea C. B. Clarke, including a drying device. A suction fan is installed on the top of the drying device through bolts. The air outlet pipe of the suction fan is communicated with a ventilation box. A heat exchange tube is fixedly connected to the inner cavity of the ventilation box. The right side of the ventilation box is fixedly communicated with a heating box. An electric heater is fixedly connected to the top of the heating box through a bolt. The right side of the heating box is fixedly communicated with a condensation box. A condensation tube is fixedly connected to the inner cavity of the condensation box. The right side of the condensation box is fixedly communicated with a connecting air duct. A purification mechanism is arranged on the right side of the condensation box. A discharge pipe is fixedly communicated with the top of the purification mechanism. A refrigeration device is arranged at the rear of the condensation box.

[0006] Preferably, the purification mechanism includes a water storage tank. A suction box is fixedly communicated with the top of the water storage tank. An activated carbon adsorption mesh plate is filled in the inner cavity of the suction box. The right side of the connecting air duct penetrates to the bottom of the inner cavity of the water storage tank.

[0007] Preferably, the left and right sides of the refrigeration device are respectively fixedly communicated with a liquid inlet pipe and a liquid outlet pipe, and the sides of the liquid inlet pipe and the liquid outlet pipe away from the refrigeration device are respectively communicated with a heat exchange pipe and a condensation pipe.

[0008] Preferably, the left side of the bottom of the condensation pipe penetrates to the outside of the condensation box and is fixedly communicated with a connecting water pipe, and the left side of the connecting water pipe penetrates the ventilation box and is fixedly communicated with the right side of the bottom of the heat exchange pipe.

[0009] Preferably, the bottom of the condensation box is welded and communicated with a liquid collecting shell, the bottom of the liquid collecting shell is fixedly communicated with a drain pipe, and a drain valve is sleeved and communicated on the surface of the drain pipe.

[0010] Preferably, a feed hopper is fixedly communicated with the top of the left side of the drying device, and liquid changing valves are fixedly communicated with the top and bottom of the right side of the purification mechanism.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] During the condensation process, the temperature of the medium flowing through the condensation pipe rises, and the medium flows into the heat exchange pipe through the connecting water pipe. When the waste gas flows through the ventilation box, it contacts the high-temperature heat exchange pipe for preheating, so that the heat energy generated during the condensation process can be reused, saving the subsequent heating time of the waste gas.

[0013] The waste gas flows into the water storage tank through the connecting air duct and contacts with water. The residual ethyl acetate in the waste gas dissolves in the water, and the waste gas flows upward and passes through the activated carbon adsorption mesh plate to adsorb and purify other pollutants in the waste gas again, so that the waste gas can be purified more thoroughly and the atmospheric environment can be avoided from being polluted. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an axonometric view of the structure of the present utility model;

[0015] Figure 2 is an internal axonometric view of a partial structure of the present utility model;

[0016] Figure 3 is an internal axonometric view of the purification mechanism of the present utility model;

[0017] Figure 4 is a rear axonometric view of the structure of the present utility model.

[0018] In the figure: 1, drying equipment; 2, feed hopper; 3, exhaust fan; 4, liquid inlet pipe; 5, ventilation box; 6, electric heater; 7, condensation box; 8, liquid outlet pipe; 9, discharge pipe; 10, purification mechanism; 11, liquid change valve; 12, drain pipe; 13, drain valve; 14, heating box; 15, heat exchange pipe; 16, condensation pipe; 17, connecting air duct; 18, connecting water pipe; 19, liquid collection shell; 20, water storage tank; 21, activated carbon adsorption mesh plate; 22, adsorption box; 23, refrigeration equipment. Detailed implementation mode

[0019] Please refer to Figures 1 - 4 , in the ethyl acetate recovery system during the drying process of extracting the active ingredient from Cyanotis arachnoidea C. B. Clarke, it includes a drying equipment 1. An exhaust fan 3 is installed at the top of the drying equipment 1 through bolts. The air outlet pipe of the exhaust fan 3 is communicated with a ventilation box 5. The inner cavity of the ventilation box 5 is fixedly connected with a heat exchange pipe 15. The right side of the ventilation box 5 is fixedly communicated with a heating box 14. An electric heater 6 is fixedly connected through the top of the heating box 14 by bolts. The right side of the heating box 14 is fixedly communicated with a condensation box 7. The inner cavity of the condensation box 7 is fixedly connected with a condensation pipe 16. The right side of the condensation box 7 is fixedly communicated with a connecting air duct 17. A purification mechanism 10 is arranged on the right side of the condensation box 7. The top of the purification mechanism 10 is fixedly communicated with a discharge pipe 9. A refrigeration equipment 23 is arranged at the rear side of the condensation box 7;

[0020] Please refer to Figure 3 , the purification mechanism 10 includes a water storage tank 20. The top of the water storage tank 20 is fixedly communicated with an adsorption box 22. The inner cavity of the adsorption box 22 is filled with an activated carbon adsorption mesh plate 21. The right side of the connecting air duct 17 penetrates to the bottom of the inner cavity of the water storage tank 20;

[0021] Please refer to Figure 4 , the left and right sides of the refrigeration equipment 23 are respectively fixedly communicated with a liquid inlet pipe 4 and a liquid outlet pipe 8. The sides of the liquid inlet pipe 4 and the liquid outlet pipe 8 far from the refrigeration equipment 23 are respectively communicated with the heat exchange pipe 15 and the condensation pipe 16. By setting the liquid inlet pipe 4, the medium flowing into the heat exchange pipe 15 can flow back into the refrigeration equipment 23 for circulating refrigeration;

[0022] Please refer to Figure 2 , the left side of the bottom of the condensation pipe 16 penetrates to the outside of the condensation box 7 and is fixedly communicated with a connecting water pipe 18. The left side of the connecting water pipe 18 penetrates the ventilation box 5 and is fixedly connected with the right side of the bottom of the heat exchange pipe 15;

[0023] Please refer to Figure 2 , the bottom of the condensation box 7 is welded and communicated with a liquid collection shell 19. The bottom of the liquid collection shell 19 is fixedly communicated with a drain pipe 12. A drain valve 13 is sleeved and communicated on the surface of the drain pipe 12. By setting the drain valve 13, the solution in the liquid collection shell 19 can flow out through the drain pipe 12 for recovery after being opened;

[0024] Please refer to Figure 1 , at the top of the left side of the drying device 1, a feed hopper 2 is fixedly connected and communicated. At the top and bottom of the right side of the purification mechanism 10, liquid changing valves 11 are fixedly connected and communicated. By setting the liquid changing valves 11, the water in the water storage tank 20 can be replaced.

[0025] During use, the device is externally connected to a power supply and a controller. The active ingredients extracted from the dew grass are dried in the drying device 1. After the exhaust fan 3 works, the exhaust gas generated during the drying process is drawn into the ventilation box 5. At this time, the electric heater 6 is controlled to work. After the exhaust gas flows into the heating box 14, the heating end of the electric heater 6 heats it to an appropriate temperature. The high-temperature exhaust gas enters the condensation box 7. At this time, the refrigeration device 23 is controlled to work to cool the condensation medium. Then, it is transported to the condensation pipe 16 through the liquid outlet pipe 8. When the high-temperature exhaust gas contacts the low-temperature condensation pipe 16, a condensation phenomenon occurs, and the liquid containing ethyl acetate drips into the liquid collection shell 19 for collection. During the condensation process, the temperature of the medium flowing through the condensation pipe 16 will rise. At this time, the medium with the increased temperature flows into the heat exchange pipe 15 through the connecting water pipe 18. When the exhaust gas flows through the ventilation box 5, it contacts the high-temperature heat exchange pipe 15 for preheating. In this way, the heat energy generated during the condensation process can be reused, saving the subsequent heating time of the exhaust gas. After the exhaust gas is condensed, it flows into the water storage tank 20 through the connecting air duct 17 and contacts the water. The residual ethyl acetate in the exhaust gas dissolves in the water. Finally, the exhaust gas flows upward and passes through the activated carbon adsorption mesh plate 21 to adsorb and purify other pollutant substances in the exhaust gas again. In this way, the exhaust gas can be purified more thoroughly, avoiding polluting the atmospheric environment.

[0026] In summary: The ethyl acetate recovery system during the drying process of extracting the active ingredients from the dew grass, through the coordinated use of the exhaust fan 3, the liquid inlet pipe 4, the ventilation box 5, the electric heater 6, the condensation box 7, the purification mechanism 10, the heating box 14, the heat exchange pipe 15, the condensation pipe 16, the connecting air duct 17, the connecting water pipe 18 and the refrigeration device 23, solves the problems of inability to reuse the heat energy after condensation, unsatisfactory energy conservation and environmental protection effects, and incomplete purification of the exhaust gas polluting the atmospheric environment.

Claims

1. Ethyl acetate recovery system during the drying process of extracting active ingredients from Cyanotis arachnoidea C. B. Clarke, including a drying device (1), characterized in that: A suction fan (3) is installed at the top of the drying device (1) through bolts. The air outlet pipe of the suction fan (3) is communicated with a ventilation box (5). A heat exchange pipe (15) is fixedly connected to the inner cavity of the ventilation box (5). The right side of the ventilation box (5) is fixedly communicated with a heating box (14). An electric heater (6) is fixedly connected through the top of the heating box (14) by bolts. The right side of the heating box (14) is fixedly communicated with a condensation box (7). A condensation pipe (16) is fixedly connected to the inner cavity of the condensation box (7). The right side of the condensation box (7) is fixedly communicated with a connecting air pipe (17). A purification mechanism (10) is arranged on the right side of the condensation box (7). A discharge pipe (9) is fixedly communicated with the top of the purification mechanism (10). A refrigeration device (23) is arranged at the rear side of the condensation box (7).

2. The ethyl acetate recovery system during the drying process of extracting the active ingredient from Cyanotis arachnoidea C. B. Clarke according to claim 1, wherein: The purification mechanism (10) includes a water storage tank (20). A suction box (22) is fixedly communicated with the top of the water storage tank (20). An activated carbon adsorption mesh plate (21) is filled in the inner cavity of the suction box (22). The right side of the connecting air pipe (17) penetrates through to the bottom of the inner cavity of the water storage tank (20).

3. The ethyl acetate recovery system during the drying process of extracting the active ingredient from Cyanotis arachnoidea C. B. Clarke according to claim 1, wherein: The left and right sides of the refrigeration device (23) are respectively fixedly communicated with a liquid inlet pipe (4) and a liquid outlet pipe (8). The sides of the liquid inlet pipe (4) and the liquid outlet pipe (8) far away from the refrigeration device (23) are respectively communicated with the heat exchange pipe (15) and the condensation pipe (16).

4. The ethyl acetate recovery system during the drying process of extracting active ingredients from Cyanotis arachnoidea C. B. Clarke according to claim 1, characterized in that: The left side of the bottom of the condensation pipe (16) penetrates through to the outside of the condensation box (7) and is fixedly communicated with a connecting water pipe (18). The left side of the connecting water pipe (18) penetrates through the ventilation box (5) and is fixedly connected with the right side of the bottom of the heat exchange pipe (15).

5. The ethyl acetate recovery system during the drying process of extracting the active ingredient from Cyanotis arachnoidea C. B. Clarke according to claim 1, characterized in that: A liquid collecting shell (19) is welded and communicated with the bottom of the condensation box (7). A drain pipe (12) is fixedly communicated with the bottom of the liquid collecting shell (19). A drain valve (13) is sleeved and communicated with the surface of the drain pipe (12).

6. The ethyl acetate recovery system during the drying process of extracting the active ingredient from Cyanotis arachnoidea C. B. Clarke according to claim 1, wherein: A feed hopper (2) is fixedly communicated with the top of the left side of the drying device (1). Liquid changing valves (11) are fixedly communicated with the top and the bottom of the right side of the purification mechanism (10).

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