A double-effect concentrator for Chinese patent medicine and preparation method thereof

Abstract

The invention discloses a double-effect concentrator for Chinese patent medicine and a preparation method, and relates to the technical field of concentration tanks. The double-effect concentrator for Chinese patent medicine comprises a tank top cover, which is movably connected to a rotating shell at the middle position of the tank top cover through a bearing; a plurality of diversion pipes are arranged inside the rotating shell, and the diversion pipes are fixed to the inside of the rotating shell through a fixed plate; a plurality of side connecting frames welded to a filter rotor are evenly distributed around the lower end of the rotating shell; the lower end of the filter rotor passes through the bottom of a conical filter cartridge, and first, the medicine liquid is poured from the top of the feed hopper, and the medicine liquid flows downward along the diversion pipe, and the external superheated steam enters the first concentration tank through the steam inlet pipe and the steam reflux pipe. Since the medicine liquid is diverted in the diversion pipe, there is a certain gap between the multiple medicine liquids from the diversion pipe. After the steam enters the first concentration tank, the steam will wrap the diversion pipe for heating, which has a large contact area, and most of the moisture can be taken away by the steam.

Description

Technical Field

[0001] The present invention relates to the technical field of concentration tanks, in particular to a double-effect concentrator for Chinese patent medicines and a preparation method thereof. Background Art

[0002] Double-effect concentrators are suitable for low-temperature vacuum concentration of heat-sensitive materials such as traditional Chinese medicine, Western medicine, glucose, winemaking, starch, oral liquids, chemicals, food, monosodium glutamate, and dairy products. Current double-effect concentrators typically consist of a first heater, a first concentrator tank, a second heater, a second concentrator tank, a cooling pipe, and a liquid receiving tank, all connected in sequence. During operation, the double-effect concentrator heats concentrator tank 1 with external steam. The evaporated steam from concentrator tank 1 is then piped to concentrator tank 2 for heating.

[0003] Chinese patent publication number CN 210331698 U discloses a high-efficiency dual-effect concentrator including a first heater, a first concentrator tank, a second heater, a second concentrator tank, and a steam heating portion. The steam heating portion is arranged between the first concentrator tank and the second heater. The steam heating portion includes a box body, a heating plate, and a heating seat. The heating plate is arranged inside the box body, the heating seat is arranged on one side of the box body, and a vacuum pump is provided on the second heater.

[0004] Although the double-effect concentration tank for Chinese patent medicines of the above-mentioned patent also transports the steam from the concentration tank 1 to the concentration tank 2 for concentration treatment, relying solely on the concentration of steam will increase the concentration time of the liquid medicine and fail to filter out part of the water in the liquid medicine before concentration; and when there is no liquid medicine to be concentrated in the concentration tank 1, it is necessary to transport the steam to the concentration tank 1 and then to the concentration tank 2, which reduces the concentration efficiency of the liquid medicine.

[0005] To this end, we provide a double-effect concentrator for Chinese patent medicine. When in use, the liquid medicine is first diverted by means of diversion, and then the diversion tube is heated by steam to remove part of the water. Then, the filter rotor is used to filter out part of the water in the liquid medicine, thereby quickly improving the concentration efficiency of the liquid medicine. Summary of the Invention

[0006] The purpose of the present invention is to provide a double-effect concentrator for Chinese patent medicines to solve the technical problem that although the double-effect concentrator for Chinese patent medicines in the above-mentioned patent mentioned in the above-mentioned background technology also transports the steam from the concentration tank 1 to the concentration tank 2 for concentration treatment, relying solely on the concentration of steam will increase the concentration time of the medicinal liquid and cannot filter out part of the water in the medicinal liquid before concentration; and when there is no medicinal liquid to be concentrated in the concentration tank 1, it is still necessary to transport steam to the concentration tank 1 and then transfer it to the concentration tank 2, which leads to a decrease in the concentration efficiency of the medicinal liquid.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A double-effect concentrator for Chinese patent medicines comprises a first concentrating tank, the top of which is buckled with a tank cover, and a rotating housing movably connected to the middle of the tank cover via a bearing; a plurality of diversion pipes are disposed within the rotating housing, and the diversion pipes are fixed to the interior of the rotating housing via a fixing plate; a plurality of side connecting frames welded to a filter rotor are uniformly distributed around the lower end of the rotating housing; the lower end of the filter rotor extends to the bottom of a conical filter cartridge and is connected to a filtrate discharge pipe;

[0009] The bottom of the first concentrating tank is provided with an inclined shape and is welded to the frame; a concentrate outlet is provided at the bottom of the first concentrating tank, and a concentrate extraction pipe is connected below the concentrate outlet; a steam circulation pipe is welded to the lower side of the first concentrating tank, and the steam circulation pipe is connected to the moisture filter, and the moisture filter is further connected to the bottom of the secondary concentrating tank via a steam delivery pipe; a controller is also provided on the frame;

[0010] The concentrated liquid extraction pipe is connected to the liquid inlet end of the circulation pump, and the liquid outlet end of the circulation pump is connected to the top of the secondary concentration tank through the concentrated liquid delivery pipe.

[0011] As a further technical solution of the present invention, a driven wheel is installed on the upper end of the rotating shell, and the driven wheel is connected to the driving wheel through a belt; the driving wheel is installed on the output shaft of the rotating motor, and the rotating motor is fixedly installed on the fixed frame; the fixed frame is fixedly connected to the tank top cover; and a feed hopper is also welded on the top of the rotating shell.

[0012] As a further technical solution of the present invention, the filter rotor is configured to be hollow, and a plurality of through holes are opened on the outside of the filter rotor;

[0013] The upper end of the conical filter cartridge is welded and fixed to the first concentration tank, and a plurality of drainage holes are opened on the upper end of the conical filter cartridge to facilitate the discharge of concentrated liquid; the steam circulation pipe is connected to the interior of the first concentration tank.

[0014] As a further technical solution of the present invention, a fixing ring is welded to the bottom side of the first concentration tank; and the concentrated liquid outlet is located on the inner side of the fixing ring.

[0015] As a further technical solution of the present invention, a straight pipe is welded to the lower end of the filter rotor, and the straight pipe is movably connected to the bottom of the first concentration tank through a bearing. A filtered liquid discharge pipe connected to the straight pipe is provided at the bottom of the tank, and an extraction pump is also connected in series to the filtered liquid discharge pipe.

[0016] As a further technical solution of the present invention, two connecting pipes are welded on one side of the secondary concentration tank and connected to the concentrate storage tank; a steam reflux pipe is provided on the top of the concentrate storage tank, which is connected to the first concentration tank, and the connection point between the steam reflux pipe and the first concentration tank is located above the conical filter cartridge.

[0017] As a further technical solution of the present invention, a one-way valve and a main ball valve are connected in series on the steam reflux pipe; a steam inlet pipe is connected between the one-way valve and the main ball valve via a three-way joint; the steam inlet pipe is connected to the steam delivery pipe through a secondary pipe, and a secondary ball valve is connected in series on the secondary pipe, and a one-way valve is also connected in series at one end of the steam delivery pipe close to the moisture filter.

[0018] As a further technical solution of the present invention, the first concentration tank and the concentrated liquid storage tank are both provided with pressure relief valves.

[0019] A method for preparing a Chinese patent medicine using a double-effect concentrator comprises the following steps:

[0020] Step 1: Drying of the liquid medicine: First, pour the liquid medicine from the top of the feed hopper, and the liquid medicine flows down along the diverter pipe. The external superheated steam enters the first concentration tank through the steam inlet pipe and the steam return pipe. Since the liquid medicine is diverted in the diverter pipe, there is a certain gap between the multiple liquid medicines from the diverter pipe. Windows are opened around the lower end of the rotating shell. After the steam enters the first concentration tank, it will wrap around the diverter pipe to heat it, with a large contact area, and the steam can take away most of the moisture;

[0021] Step 2: The medicinal liquid is initially concentrated, and then the medicinal liquid flows into the conical filter cartridge for collection. The rotating motor drives the driving wheel to rotate, and the rotating shell is driven to rotate under the cooperation of the belt and the driven wheel. Since the bottom of the rotating shell is connected to the filter rotor through the side connecting frame, the through holes on its surface will seep water under the high-speed rotation of the filter rotor, while the thick medicinal liquid remains on the outside of the filter rotor, and the filtrate in the medicinal liquid is discharged through the filtrate discharge pipe at the bottom; the concentrated liquid of the medicinal liquid is accumulated in the conical filter cartridge, and after reaching a certain reserve, it is discharged into the fixed ring through the drainage hole on the conical filter cartridge, and then enters the concentrated liquid extraction pipe through the concentrated liquid outlet. Under the extraction of the circulating pump, it is transported to the secondary concentration tank through the concentrated liquid delivery pipe for secondary concentration;

[0022] Step 3: Secondary concentration of the medicinal liquid. After the steam continuously heats the medicinal liquid in the diversion pipe, the medicinal liquid will also generate steam. Therefore, the input steam and the steam generated by the medicinal liquid are reused and transported to the moisture filter through the steam circulation pipe for moisture filtration. The steam delivery pipe inputs the steam after moisture filtration from the bottom of the secondary concentration tank. The concentrated medicinal liquid falls from the top of the secondary concentration tank through the concentrate delivery pipe. The water inside the medicinal liquid that is heated again sublimates into steam and enters the concentrate storage tank through the pipe above the secondary concentration tank. The medicinal liquid that has undergone secondary concentration enters the concentrate storage tank for collection.

[0023] Step 4: steam recycling. The steam in the concentrate storage tank enters the first concentration tank again through the steam reflux pipe, thereby realizing the recycling of steam, reducing the use of external steam, and greatly improving resource utilization efficiency.

[0024] As a further technical solution of the present invention, the secondary concentration tank works independently. When no new liquid medicine enters the first concentration tank, only the liquid medicine in the secondary concentration tank needs to be secondary concentrated. If steam is introduced into the first concentration tank and then transmitted to the secondary concentration tank, it will cause waste of resources and reduce work efficiency. In this case, it is necessary to supply steam to the secondary concentration tank separately. When supplying steam, the main ball valve is first closed and the auxiliary ball valve is opened. At this time, the steam enters the steam delivery pipe through the auxiliary pipe. Since the steam delivery pipe is also connected in series with a one-way valve, the steam can only enter the secondary concentration tank, thereby achieving secondary concentration of the liquid medicine, thereby effectively reducing waste of resources and improving the concentration efficiency of the liquid medicine.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention first pours the drug liquid into the feed hopper from the top, allowing it to flow down the diverter pipe. External superheated steam enters the first concentrating tank through the steam inlet pipe and the steam return pipe. Since the drug liquid is diverted in the diverter pipe, there is a certain gap between the multiple drug liquids. Windows are provided around the lower end of the rotating shell. After the steam enters the first concentrating tank, it wraps around the diverter pipe to heat it, creating a large contact area and allowing the steam to remove most of the moisture.

[0027] 2. In the present invention, the medicinal liquid is initially concentrated, and then the medicinal liquid flows into the conical filter cartridge for collection. The rotating motor drives the driving wheel to rotate, and the rotating shell is driven to rotate under the cooperation of the belt and the driven wheel. Since the bottom of the rotating shell is connected to the filter rotor through the side connecting frame, under the high-speed rotation of the filter rotor, water will seep into the through holes on its surface, while the thick medicinal liquid will remain on the outside of the filter rotor, and the filtrate in the medicinal liquid will be discharged through the filtrate discharge pipe at the bottom; the concentrated liquid of the medicinal liquid will accumulate in the conical filter cartridge, and after reaching a certain reserve, it will be discharged into the fixed ring through the drainage hole on the conical filter cartridge, and then enter the concentrated liquid extraction pipe through the concentrated liquid outlet. Under the extraction of the circulating pump, it is transported to the secondary concentration tank through the concentrated liquid delivery pipe for secondary concentration;

[0028] 3. In the present invention, in the secondary concentration of the medicinal liquid, steam continuously heats the medicinal liquid in the diversion pipe, and the medicinal liquid also generates steam. Therefore, the input steam and the steam generated by the medicinal liquid are reused and transported to the moisture filter through the steam circulation pipe for moisture filtration. The steam after moisture filtration is input from the bottom of the secondary concentration tank by the steam delivery pipe. The concentrated medicinal liquid falls from the top of the secondary concentration tank through the concentrated liquid delivery pipe. The moisture in the heated medicinal liquid is sublimated into steam, which enters the concentrated liquid storage tank through the pipe above the secondary concentration tank. The medicinal liquid after secondary concentration enters the concentrated liquid storage tank for collection.

[0029] 4. The present invention recycles steam. The steam in the concentrated liquid storage tank re-enters the first concentration tank through the steam reflux pipe, thereby realizing the recycling of steam, reducing the use of external steam, and greatly improving resource utilization efficiency;

[0030] 5. In the present invention, the secondary concentration tank works independently. When no new liquid medicine enters the first concentration tank, only the liquid medicine in the secondary concentration tank needs to be secondary concentrated. If steam is introduced into the first concentration tank and then transferred to the secondary concentration tank, it will cause waste of resources and reduce work efficiency. In this case, it is necessary to supply steam to the secondary concentration tank independently. When supplying steam, the main ball valve is first closed and the auxiliary ball valve is opened. At this time, the steam enters the steam delivery pipe through the auxiliary pipe. Since the steam delivery pipe is also connected in series with a one-way valve, the steam can only enter the secondary concentration tank, thereby achieving secondary concentration of the liquid medicine, thereby effectively reducing waste of resources and improving the concentration efficiency of the liquid medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0032] Figure 2 In the present invention Figure 1 Schematic diagram of the bottom structure.

[0033] Figure 3 In the present invention Figure 1 Schematic diagram of the rear structure.

[0034] Figure 4 In the present invention Figure 1 Half-section diagram of .

[0035] Figure 5 In the present invention Figure 1 Left view of .

[0036] Figure 6 In the present invention Figure 5 AA cross-sectional view.

[0037] Figure 7 In the present invention Figure 4 A partial enlarged schematic diagram.

[0038] In the figure: 1-first concentration tank, 2-tank top cover, 3-fixed frame, 4-rotating motor, 5-driving wheel, 6-belt, 7-driven wheel, 8-feed hopper, 9-diverter pipe, 10-rotating shell, 11-fixed plate, 12-side connecting frame, 13-filter rotor, 14-conical filter cartridge, 15-fixed ring, 16-concentrate outlet, 17-concentrate extraction pipe, 18-frame, 19-circulating pump, 20-secondary concentration tank, 21-concentrate storage tank, 22-steam reflux pipe, 23-check valve, 24-main ball valve, 25-auxiliary ball valve, 26-auxiliary pipeline, 27-steam inlet pipe, 28-steam circulation pipe, 29-moisture filter, 30-steam delivery pipe, 31-concentrate delivery pipe, 32-filtrate discharge pipe, 33-extraction pump, 34-controller. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] See also Figure 1-7In an embodiment of the present invention, a double-effect concentrator for Chinese patent medicines includes a first concentrating tank 1, a tank cover 2 being buckled onto the top of the first concentrating tank 1, and a rotating shell 10 being movably connected to the middle position of the tank cover 2 via a bearing; a plurality of diversion pipes 9 are provided inside the rotating shell 10, and the diversion pipes 9 are fixed to the interior of the rotating shell 10 via a fixing plate 11; a plurality of side connecting frames 12 welded to a filter rotor 13 are uniformly distributed around the lower end of the rotating shell 10; the lower end of the filter rotor 13 extends to the bottom of the conical filter cartridge 14 and is connected to the filtrate discharge pipe 32;

[0041] The bottom of the first concentrating tank 1 is provided with an inclined shape and welded to the frame 18. A concentrate outlet 16 is provided at the bottom of the first concentrating tank 1, and a concentrate extraction pipe 17 is connected below the concentrate outlet 16. A steam circulation pipe 28 is welded to the lower side of the first concentrating tank 1. The steam circulation pipe 28 is connected to a moisture filter 29, and the moisture filter 29 is further connected to the bottom of the secondary concentrating tank 20 via a steam delivery pipe 30.

[0042] The concentrated liquid extraction pipe 17 is connected to the liquid inlet of the circulation pump 19 , and the liquid outlet of the circulation pump 19 is connected to the top of the secondary concentration tank 20 through the concentrated liquid delivery pipe 31 .

[0043] In this embodiment, the upper end of the rotating shell 10 is equipped with a driven wheel 7, which is connected to the driving wheel 5 through a belt 6; the driving wheel 5 is installed on the output shaft of the rotating motor 4, and the rotating motor 4 is fixedly mounted on the fixing frame 3; the fixing frame 3 is fixedly connected to the tank top cover 2; and a feed hopper 8 is also welded to the top of the rotating shell 10.

[0044] By adopting the above technical solution, the liquid medicine is first poured into the feed hopper 8 from the top, and the liquid medicine flows downward along the diverter pipe 9. The external superheated steam enters the first concentration tank 1 through the steam inlet pipe 27 and the steam return pipe 22. Since the liquid medicine is diverted in the diverter pipe 9, there is a certain gap between the multiple liquid medicines flowing through the diverter pipe 9. Windows are opened around the lower end of the rotating shell 10. After the steam enters the first concentration tank 1, it will wrap around the diverter pipe 9 to heat it, providing a large contact area, and the steam can remove most of the moisture.

[0045] Furthermore, the subsequent medicinal liquid flows into the conical filter cartridge 14 for collection, and the rotating motor 4 drives the driving wheel 5 to rotate, and the rotating shell 10 is driven to rotate with the cooperation of the belt 6 and the driven wheel 7. Since the bottom of the rotating shell 10 is connected to the filter rotor 13 through the side connecting frame 12, under the high-speed rotation of the filter rotor 13, water will seep into the through holes on its surface, while the thick medicinal liquid will remain on the outside of the filter rotor 13, and the filtrate in the medicinal liquid will be discharged through the filtrate discharge pipe 32 at the bottom; the concentrated liquid of the medicinal liquid will accumulate in the conical filter cartridge 14, and after reaching a certain storage volume, it will be discharged into the fixed ring 15 through the drainage hole on the conical filter cartridge 14, and then enter the concentrated liquid extraction pipe 17 through the concentrated liquid outlet 16. Under the extraction of the circulating pump 19, it is transported to the secondary concentration tank 20 through the concentrated liquid delivery pipe 31 for secondary concentration.

[0046] In this embodiment, the upper end of the conical filter cartridge 14 is welded to the first concentration tank 1 and is provided with a plurality of drainage holes for facilitating the discharge of the concentrated liquid. The steam circulation pipe 28 is connected to the interior of the first concentration tank 1 .

[0047] The filter rotor 13 is configured to be hollow, and a plurality of through holes are opened on the outside of the filter rotor 13; the pore diameter of the through holes is 2 nanometers to 4 nanometers.

[0048] To be more specific, the diameter of a water molecule is 0.4nm; so theoretically, any pore size larger than this can filter out the water molecules in the liquid medicine. However, considering the problems of water surface tension, viscous resistance, and mixing of the liquid medicine and water molecules, the pore size of the through hole is set to 2nm-4nm to ensure the passage of water molecules, reduce the water molecule content in the liquid medicine, and thus improve the concentration effect of the liquid medicine.

[0049] In this embodiment, a fixing ring 15 is welded to the bottom of the first concentrating tank 1 ; the concentrated liquid outlet 16 is located inside the fixing ring 15 .

[0050] More specifically, a straight pipe is welded to the lower end of the filter rotor 13, and the straight pipe is movably connected to the bottom of the first concentration tank 1 through a bearing, and a filtered liquid discharge pipe 32 connected to the straight pipe is provided at the bottom of the tank, and an extraction pump 33 is also connected in series to the filtered liquid discharge pipe 32.

[0051] In this embodiment, two connecting pipes are welded on one side of the secondary concentration tank 20 and are connected to the concentrate storage tank 21; a steam reflux pipe 22 is provided on the top of the concentrate storage tank 21, and the steam reflux pipe 22 is connected to the first concentration tank 1, and the connection point between the steam reflux pipe 22 and the first concentration tank 1 is located above the conical filter cartridge 14.

[0052] To be more specific, a one-way valve 23 and a main ball valve 24 are connected in series to the steam reflux pipe 22; a steam inlet pipe 27 is connected between the one-way valve 23 and the main ball valve 24 via a three-way joint; the steam inlet pipe 27 is connected to the steam delivery pipe 30 through a secondary pipe 26, and a secondary ball valve 25 is connected in series to the secondary pipe 26, and a one-way valve is also connected in series at one end of the steam delivery pipe 30 near the moisture filter 29.

[0053] By adopting the above technical solution, after the steam continuously heats the medicinal liquid in the diversion pipe 9, the medicinal liquid will also generate steam. Therefore, the input steam and the steam generated by the medicinal liquid are reused, and the steam is transported to the moisture filter 29 through the steam circulation pipe 28 for moisture filtration. The steam delivery pipe 30 inputs the steam after moisture filtration from the bottom of the secondary concentration tank 20, and the concentrated medicinal liquid falls from the top of the secondary concentration tank 20 through the concentrated liquid delivery pipe 31. The water inside the medicinal liquid that is heated again is sublimated into steam, and enters the concentrated liquid storage tank 21 through the pipe above the secondary concentration tank 20. The medicinal liquid that has undergone secondary concentration enters the concentrated liquid storage tank 21 for collection.

[0054] Furthermore, the steam is recycled, and the steam in the concentrated liquid storage tank 21 enters the first concentration tank 1 again through the steam reflux pipe 22, thereby realizing the recycling of steam, reducing the use of external steam, and greatly improving the utilization efficiency of resources.

[0055] As a further optimization, the secondary concentration tank 20 works independently. When no new liquid medicine enters the first concentration tank 1, only the liquid medicine in the secondary concentration tank 20 needs to be secondary concentrated. If steam is introduced into the first concentration tank 1 and then transmitted to the secondary concentration tank 20, it will cause waste of resources and reduce work efficiency. At this time, it is necessary to supply steam to the secondary concentration tank 20 separately. When supplying steam, the main ball valve 24 is first closed and the auxiliary ball valve 25 is opened. At this time, the steam enters the steam delivery pipe 30 through the auxiliary pipe 26. Since the steam delivery pipe 30 is also connected in series with a one-way valve, the steam can only enter the secondary concentration tank 20, thereby realizing secondary concentration of the liquid medicine, thereby effectively reducing waste of resources and improving the concentration efficiency of the liquid medicine.

[0056] In this embodiment, both the first concentration tank 1 and the concentrated liquid storage tank 21 are provided with pressure relief valves.

[0057] A method for preparing a Chinese patent medicine using a double-effect concentrator comprises the following steps:

[0058] Step 1: Drying of the medicinal liquid. First, pour the medicinal liquid from the top of the feed hopper 8. The medicinal liquid flows downward along the diverter pipe 9. The external superheated steam enters the first concentration tank 1 through the steam inlet pipe 27 and the steam return pipe 22. Since the medicinal liquid is diverted in the diverter pipe 9, there is a certain gap between the multiple medicinal liquids from the diverter pipe 9. Windows are opened around the lower end of the rotating shell 10. After the steam enters the first concentration tank 1, it will wrap around the diverter pipe 9 to heat it, with a large contact area, and most of the moisture can be taken away by the steam.

[0059] Step 2, the initial concentration of the medicinal liquid. The medicinal liquid then flows into the conical filter cartridge 14 for collection. The rotating motor 4 drives the driving wheel 5 to rotate, and the rotating shell 10 is driven to rotate with the cooperation of the belt 6 and the driven wheel 7. Since the bottom of the rotating shell 10 is connected to the filter rotor 13 through the side connecting frame 12, under the high-speed rotation of the filter rotor 13, water will seep into the through holes on its surface, while the thick medicinal liquid will remain on the outside of the filter rotor 13, and the filtrate in the medicinal liquid will be discharged through the filtrate discharge pipe 32 at the bottom; the concentrated liquid of the medicinal liquid will accumulate in the conical filter cartridge 14. After reaching a certain storage volume, it will be discharged into the fixed ring 15 through the drainage hole on the conical filter cartridge 14, and then enter the concentrated liquid extraction pipe 17 through the concentrated liquid outlet 16. Under the extraction of the circulating pump 19, it is transported to the secondary concentration tank 20 through the concentrated liquid delivery pipe 31 for secondary concentration;

[0060] Step 3: Secondary concentration of the medicinal liquid. After the steam continuously heats the medicinal liquid in the diversion pipe 9, the medicinal liquid will also generate steam. Therefore, the input steam and the steam generated by the medicinal liquid are reused and transported to the moisture filter 29 through the steam circulation pipe 28 for moisture filtration. The steam after moisture filtration is input from the bottom of the secondary concentration tank 20 by the steam delivery pipe 30. The concentrated medicinal liquid falls from the top of the secondary concentration tank 20 through the concentrate delivery pipe 31. The moisture in the heated medicinal liquid is sublimated into steam and enters the concentrate storage tank 21 through the pipe above the secondary concentration tank 20. The medicinal liquid after secondary concentration enters the concentrate storage tank 21 for collection.

[0061] Step 4, steam recycling. The steam in the concentrated liquid storage tank 21 enters the first concentration tank 1 again through the steam reflux pipe 22, thereby realizing the recycling of steam, reducing the use of external steam, and greatly improving the utilization efficiency of resources.

[0062] In this embodiment, the secondary concentration tank 20 operates independently. When no new liquid medicine enters the first concentration tank 1, only the liquid medicine in the secondary concentration tank 20 needs to be secondary concentrated. If steam is introduced into the first concentration tank 1 and then transmitted to the secondary concentration tank 20, it will cause waste of resources and reduce work efficiency. In this case, it is necessary to supply steam to the secondary concentration tank 20 independently. When supplying steam, the main ball valve 24 is first closed and the auxiliary ball valve 25 is opened. At this time, the steam enters the steam delivery pipe 30 through the auxiliary pipe 26. Since the steam delivery pipe 30 is also connected in series with a one-way valve, the steam can only enter the secondary concentration tank 20, thereby achieving secondary concentration of the liquid medicine, thereby effectively reducing waste of resources and improving the concentration efficiency of the liquid medicine.

[0063] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0064] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A double-effect concentrator for Chinese patent medicine, characterized by: The invention comprises a first concentration tank (1), the top of which is buckled with a tank cover (2), and a rotating shell (10) is movably connected to the middle position of the tank cover (2) via a bearing; a plurality of shunt pipes (9) are arranged inside the rotating shell (10), and the shunt pipes (9) are fixed inside the rotating shell (10) via a fixing plate (11); a plurality of side connecting frames (12) welded to a filter rotor (13) are evenly distributed around the lower end of the rotating shell (10); the lower end of the filter rotor (13) passes through the bottom of the conical filter cartridge (14) and is connected to a filtrate discharge pipe (32); The bottom of the first concentrating tank (1) is provided with an inclined shape and is welded to the frame (18); a concentrated liquid outlet (16) is provided at the bottom of the first concentrating tank (1), and a concentrated liquid extraction pipe (17) is connected below the concentrated liquid outlet (16); a steam circulation pipe (28) is welded at a lower position on the side of the first concentrating tank (1), and the steam circulation pipe (28) is connected to a moisture filter (29), and the moisture filter (29) is also connected to the bottom of the secondary concentrating tank (20) through a steam delivery pipe (30); The concentrated liquid extraction pipe (17) is connected to the liquid inlet of the circulation pump (19), and the liquid outlet of the circulation pump (19) is connected to the top of the secondary concentration tank (20) through the concentrated liquid delivery pipe (31); Two connecting pipes are welded on one side of the secondary concentration tank (20) and connected to the concentrated liquid storage tank (21); a steam reflux pipe (22) is provided on the top of the concentrated liquid storage tank (21), the steam reflux pipe (22) is connected to the first concentration tank (1), and the connection point between the steam reflux pipe (22) and the first concentration tank (1) is located above the conical filter cartridge (14); A one-way valve (23) and a main ball valve (24) are connected in series to the steam reflux pipe (22); a steam inlet pipe (27) is connected between the one-way valve (23) and the main ball valve (24) via a three-way joint; the steam inlet pipe (27) is communicated with the steam delivery pipe (30) via a secondary pipe (26), and a secondary ball valve (25) is connected in series to the secondary pipe (26); and a one-way valve is also connected in series to one end of the steam delivery pipe (30) near the moisture filter (29).

2. The double-effect concentrator for Chinese patent medicine according to claim 1, characterized in that: A driven wheel (7) is mounted on the upper end of the rotating housing (10), and the driven wheel (7) is connected to the driving wheel (5) through a belt (6); the driving wheel (5) is mounted on the output shaft of the rotating motor (4), and the rotating motor (4) is fixedly mounted on the fixing frame (3); the fixing frame (3) is fixedly connected to the tank top cover (2); and a feed hopper (8) is welded to the top of the rotating housing (10).

3. The double-effect concentrator for Chinese patent medicine according to claim 2, characterized in that: The filter rotor (13) is configured to be hollow, and a plurality of through holes are provided on the outside of the filter rotor (13); The upper end of the conical filter cartridge (14) is welded and fixed to the first concentration tank (1), and a plurality of drainage holes are provided on the upper end of the conical filter cartridge (14) for facilitating the discharge of concentrated liquid; the steam circulation pipe (28) is connected to the interior of the first concentration tank (1).

4. The double-effect concentrator for Chinese patent medicine according to claim 3, characterized in that: A fixing ring (15) is welded to the bottom of the first concentration tank (1); and the concentrated liquid outlet (16) is located inside the fixing ring (15).

5. The double-effect concentrator for Chinese patent medicine according to claim 4, characterized in that: A straight pipe is welded to the lower end of the filter rotor (13), and the straight pipe is movably connected to the bottom of the first concentration tank (1) through a bearing. A filtered liquid discharge pipe (32) connected to the straight pipe is provided at the bottom of the tank, and an extraction pump (33) is also connected in series to the filtered liquid discharge pipe (32).

6. The double-effect concentrator for Chinese patent medicine according to claim 5, characterized in that: The first concentration tank (1) and the concentrated liquid storage tank (21) are both provided with pressure relief valves.

7. A method for preparing Chinese patent medicine using the double-effect concentrator according to claim 6, characterized in that: The following steps are involved: Step 1, drying of the medicinal liquid. First, the medicinal liquid is poured from the top of the feed hopper (8). The medicinal liquid flows downward along the diverter pipe (9). External superheated steam enters the first concentration tank (1) through the steam inlet pipe (27) and the steam reflux pipe (22). Since the medicinal liquid is diverted in the diverter pipe (9), there is a certain gap between the multiple medicinal liquids from the diverter pipe (9). Windows are provided around the lower end of the rotating shell (10). After the steam enters the first concentration tank (1), the steam will wrap and heat the diverter pipe (9), which has a large contact area. Most of the moisture can be taken away by the steam. Step 2: The first concentration of the liquid medicine. The liquid medicine then flows into the conical filter cartridge (14) for collection. The rotating motor (4) drives the driving wheel (5) to rotate, and drives the rotating shell (10) to rotate under the cooperation of the belt (6) and the driven wheel (7). Since the bottom of the rotating shell (10) is connected to the filter rotor (13) through the side connecting frame (12), under the high-speed rotation of the filter rotor (13), water will penetrate into the through holes on its surface, and the thick liquid medicine will remain on the filter rotor (13). 3), the filtrate in the liquid medicine is discharged through the filtrate discharge pipe (32) at the bottom; while the concentrated liquid of the liquid medicine is collected in the conical filter cartridge (14), and after reaching a certain amount of storage, it is discharged into the fixed ring (15) through the drainage hole on the conical filter cartridge (14), and then enters the concentrated liquid extraction pipe (17) through the concentrated liquid outlet (16), and is pumped by the circulation pump (19) and then transported to the secondary concentration tank (20) through the concentrated liquid delivery pipe (31) for secondary concentration; Step 3, secondary concentration of the medicinal liquid. After the steam continuously heats the medicinal liquid in the shunt pipe (9), the medicinal liquid will also generate steam. Therefore, the input steam and the steam generated by the medicinal liquid are reused. The steam is transported to the moisture filter (29) through the steam circulation pipe (28) for moisture filtration. The steam after moisture filtration is input from the bottom of the secondary concentration tank (20) through the steam delivery pipe (30). The concentrated medicinal liquid falls from the top of the secondary concentration tank (20) through the concentrated liquid delivery pipe (31). The water in the medicinal liquid that is heated again is sublimated into steam and enters the concentrated liquid storage tank (21) through the pipe above the secondary concentration tank (20). The medicinal liquid after secondary concentration enters the concentrated liquid storage tank (21) for collection. Step 4, steam recycling, the steam in the concentrated liquid storage tank (21) enters the first concentration tank (1) again through the steam reflux pipe (22), thereby realizing the recycling of steam, reducing the use of external steam, and greatly improving the utilization efficiency of resources.

8. A method for preparing Chinese patent medicine using the double-effect concentrator according to any one of claims 1 to 6, characterized in that: The secondary concentration tank (20) works independently. When no new liquid medicine enters the first concentration tank (1), only the liquid medicine in the secondary concentration tank (20) needs to be secondary concentrated. If steam is introduced into the first concentration tank (1) and then transmitted to the secondary concentration tank (20), it will cause waste of resources and reduce work efficiency. At this time, it is necessary to supply steam to the secondary concentration tank (20) independently. When supplying steam, the main ball valve (24) is first closed and the auxiliary ball valve (25) is opened. At this time, the steam enters the steam delivery pipe (30) through the auxiliary pipe (26). Since the steam delivery pipe (30) is also connected in series with a one-way valve, the steam can only enter the secondary concentration tank (20), thereby realizing secondary concentration of the liquid medicine, thereby effectively reducing waste of resources and improving the concentration efficiency of the liquid medicine.

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