Herb-tree composite base traditional Chinese medicine residue drying device
By employing a two-stage drying system and energy recovery design, the problem of poor drying effect of medicinal herb residues in herbal composite bases has been solved, achieving efficient and low-energy drying of medicinal herb residues and meeting the requirements for biomass fuel production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNMING TANYUE NEW ENERGY CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-14
AI Technical Summary
Existing herbal composite base traditional Chinese medicine residue drying devices have poor drying effects, high moisture content, and high energy consumption, making it difficult to meet the requirements for biomass fuel production.
A two-stage drying system is adopted, including a primary drying section and a secondary drying section. Hot air is provided by the first and second hot air blowers, respectively, and energy is recovered through heat exchangers. The medicinal residue is transported by an auger, and the combined drum structure and screen design ensure effective drying.
This method achieves efficient drying of medicinal herb residues from herb-based composite substrates, ensuring that the moisture content meets biomass fuel standards, thereby reducing energy consumption and realizing an economical and environmentally friendly drying process.
Smart Images
Figure CN224121650U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drying technology, and in particular to a drying device for medicinal herb residue based on a herb-wood composite base. Background Technology
[0002] Herbaceous composite-based Chinese medicine residue is solid waste left over after decocting or soaking Chinese medicinal herbs. With the development of the traditional Chinese medicine industry, the discharge of herbaceous composite-based Chinese medicine residue has been increasing year by year. Traditional treatment methods such as incineration and landfill not only pollute the environment but also waste resources. In recent years, research on the resource utilization of herbaceous composite-based Chinese medicine residue has gradually increased, such as its energy utilization, where it can be made into biomass fuel. The production of biomass fuel requires drying the herbaceous composite-based Chinese medicine residue, which contains a high amount of moisture, as a preliminary preparation for its production. Existing drying equipment is not very effective at drying herbaceous composite-based Chinese medicine residue. In actual use, single-stage drying is usually adopted, but the moisture content of the residue remains high, and the drying process consumes a significant amount of energy. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a drying device for herbal composite base Chinese medicine residue, which can effectively dry the herbal composite base Chinese medicine residue.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:
[0005] A herbal composite-based traditional Chinese medicine residue drying device includes a primary drying section, a secondary drying section, a first hot air blower, a second hot air blower, and a heat exchanger. The primary drying section is connected to the first hot air blower at its front end, with a feed hopper fixedly connected to its upper front end, and its lower rear end connected to the upper end of the secondary drying section. The secondary drying section is fixedly connected to a discharge pipe at its lower end. The second hot air blower is connected to the lower part of the secondary drying section. The upper rear end of the primary drying section is connected to the upper part of the heat exchanger via a pipe. The lower part of the heat exchanger is connected to the lower part of the secondary drying section via a pipe.
[0006] Furthermore, the lower rear end of the primary drying section is connected to the upper end of the secondary drying section via an auger.
[0007] Furthermore, a first fan is installed on the pipe connecting the primary drying section to the upper part of the heat exchanger; a third fan is installed on the pipe connecting the lower part of the heat exchanger to the lower part of the secondary drying section.
[0008] Furthermore, a second fan is connected to the upper end of the secondary drying section via a pipe.
[0009] Furthermore, the primary drying section employs a rotary drum dryer.
[0010] Furthermore, the secondary drying unit includes a housing, a motor detachably connected to the bottom of the housing, a rotating shaft fixed to the output end of the motor and extending into the housing, several screens horizontally arranged inside the housing and spaced a certain distance apart, and cleaning components horizontally fixed to the rotating shaft with their lower ends in contact with the screens; the number of cleaning components is one more than the number of screens; a first hole is opened in the middle of the screen to facilitate the passage of the rotating shaft; a second hole for material leakage is also opened on the screen; the second holes on adjacent screens are staggered axially.
[0011] Furthermore, a retaining ring is fixedly connected to the upper end face of the screen near the rotating shaft; the retaining ring is concentrically arranged with the rotating shaft and has a gap to facilitate the rotation of the rotating shaft.
[0012] Furthermore, the cleaning component includes a support rod, a connecting plate fixed below the support rod, and cleaning bristles located below the connecting plate and in contact with the screen.
[0013] The beneficial effects of this utility model are:
[0014] (1) By setting up a feeding hopper, the herb-based medicinal residue that needs to be dried is sent to the first-stage drying section where the first hot air blower provides hot air for initial drying. Then, the herb-based medicinal residue is sent to the second-stage drying section where the second hot air blower provides hot air for secondary drying by a screw conveyor. By setting up a two-stage drying method, the herb-based medicinal residue with heavy water content is effectively dried, and the water content can meet the standard for making biomass fuel.
[0015] (2) By setting up a heat exchanger between the primary drying section and the secondary drying section, the energy in the hot air in the primary drying section can be effectively recovered and utilized in the secondary drying section, which effectively reduces heat loss and is economical and environmentally friendly. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the secondary drying section;
[0018] Figure 3 This is a schematic diagram of the sieve structure.
[0019] In the picture,
[0020] 1- Primary drying section, 2- Secondary drying section, 3- First hot air blower, 4- Second hot air blower, 5- Heat exchanger, 6- Feed hopper, 7- Discharge pipe, 8- Screwdriver, 9- First blower, 10- Second blower, 11- Third blower;
[0021] 21-Housing, 22-Motor, 23-Shaft, 24-Screen, 25-Sweeping component, 26-Bend ring; 241-First hole, 242-Second hole; 251-Support rod, 252-Connecting plate, 253-Sweeping brush bristles. Detailed Implementation
[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0023] Reference Figure 1-3 As shown, a herb-based composite medicinal herb residue drying device includes a primary drying section 1, a secondary drying section 2, a first hot air blower 3, a second hot air blower 4, and a heat exchanger 5. The primary drying section 1 is connected to the first hot air blower 3 at its front end, and a feed hopper 6 is fixedly connected to the upper part of the front end. The lower part of the rear end is connected to the upper end of the secondary drying section 2. A discharge pipe 7 is fixedly connected to the lower end of the secondary drying section 2. The second hot air blower 4 is connected to the lower part of the secondary drying section 2. The upper part of the rear end of the primary drying section 1 is connected to the upper part of the heat exchanger 5 through a pipe. The lower part of the heat exchanger 5 is connected to the lower part of the secondary drying section 2 through a pipe.
[0024] It should be explained in detail that the primary drying section 1 can perform initial drying of the herb-based composite medicinal residue; the secondary drying section 2 can further perform secondary drying of the herb-based composite medicinal residue, effectively ensuring the drying effect and ensuring that the moisture content of the herb-based composite medicinal residue reaches the suitable moisture content for making biomass fuel; the first hot air blower 3 and the second hot air blower 4 can provide hot air for drying, ensuring the drying effect; a single hot air blower can also be used as the hot air source, and the setting can be determined according to the site, which can be reasonably selected by those skilled in the art; the heat exchanger 5 can recover the energy of the hot air generated by the primary drying section 1 and utilize it in the secondary drying section 2.
[0025] Specifically, in order to facilitate the transfer of the herbal composite base Chinese medicine residue that has undergone one drying process, the lower rear end of the primary drying section 1 is connected to the upper end of the secondary drying section 2 via an auger 8.
[0026] Specifically, in order to facilitate the flow of hot air, a first fan 9 is provided on the pipe connecting the primary drying section 1 and the upper part of the heat exchanger 5; a third fan 11 is provided on the pipe connecting the lower part of the heat exchanger 5 and the lower part of the secondary drying section 2.
[0027] Specifically, in order to facilitate the exhaust of gas inside the secondary drying section 2, a second fan 10 is connected to the upper end of the secondary drying section 2 via a pipe.
[0028] In this application, the primary drying section 1 adopts a rotary drum dryer. Those skilled in the art can also choose according to the specific application situation for ease of use.
[0029] Specifically, the secondary drying unit 2 includes a housing 21, a motor 22 detachably connected to the lower part of the housing 21, a rotating shaft 23 fixed to the output end of the motor 22 and extending into the housing 21, several screens 24 horizontally arranged inside the housing 21 and spaced apart, and cleaning components 25 horizontally fixed to the rotating shaft 23 with their lower ends in contact with the screens 24; the number of cleaning components 25 is one more than the number of screens 24. In this application, four screens 24 are provided. When setting them, those skilled in the art need to consider the size and bearing capacity of the housing 21; a first hole 241 is opened in the middle of the screen 24 to facilitate the passage of the rotating shaft 23; a second hole 242 for material leakage is also opened on the screen 24; the second holes 242 on two adjacent screens 24 are staggered along the axis. The housing 21 facilitates the entry of herbal composite medicinal residue and the arrangement of various components; the motor 22 provides power to the rotating shaft 23, and the motor 22 can be selected according to the actual use, which is easily understood by those skilled in the art and will not be described in detail here; the screen 24 supports the herbal composite medicinal residue entering the secondary drying section 2 and facilitates the flow of hot air generated by the second hot air blower 4; the rotating shaft 23 can drive the cleaning component 25 to rotate; the cleaning component 25 can sweep the herbal composite medicinal residue on the screen 24 from the upper screen 24 through the second hole 242 into the next stage, so that the herbal composite medicinal residue is effectively dried.
[0030] Specifically, a retaining ring 26 is fixedly connected to the upper end face of the screen 24 near the rotating shaft 23; the retaining ring 26 is concentrically arranged with the rotating shaft 23 and has a gap to facilitate the rotation of the rotating shaft 23. The retaining ring 26 can prevent the medicinal residue of the herb-based composite base from getting stuck in the gap between the rotating shaft 23 and the screen 24, causing the equipment to stop rotating.
[0031] Specifically, the cleaning component 25 includes a support rod 251, a connecting plate 252 fixed below the support rod 251, and cleaning bristles 253 located below the connecting plate 252 and in contact with the screen 24. The support rod 251 supports the connecting plate 252 and the cleaning bristles 253; the connecting plate 252 ensures the stable setting of the cleaning bristles 253; the cleaning bristles 253 are made of a material that can withstand a certain temperature, and those skilled in the art can select the appropriate material based on the actual situation.
[0032] The working principle of this utility model:
[0033] When drying the herb-based composite medicinal herb residue, the residue is fed into the primary drying section 1, where the first hot air blower 3 provides hot air, via a feed hopper 6 for initial drying. Then, the residue is fed into the secondary drying section 2, where the second hot air blower 4 provides hot air, via an auger 8 for secondary drying. This two-stage drying method effectively dries the heavy-moisture herb-based composite medicinal herb residue, achieving a moisture content that meets the standards for biomass fuel production and remains stable at 20%. By installing a heat exchanger 5 between the primary drying section 1 and the secondary drying section 2, the energy from the hot air in the primary drying section 1 can be effectively recovered and utilized in the secondary drying section 2, effectively reducing heat loss and making it economical and environmentally friendly.
[0034] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.
Claims
1. A drying device for medicinal herb residue based on a herbaceous composite base, characterized in that: It includes a primary drying section (1), a secondary drying section (2), a first hot air blower (3), a second hot air blower (4), and a heat exchanger (5); the primary drying section (1) is connected to the first hot air blower (3) at its front end, and a feed hopper (6) is fixedly connected to the upper part of the front end, and the lower part of the rear end is connected to the upper end of the secondary drying section (2); the lower end of the secondary drying section (2) is fixedly connected to a discharge pipe (7); the second hot air blower (4) is connected to the lower part of the secondary drying section (2); the upper part of the rear end of the primary drying section (1) is connected to the upper part of the heat exchanger (5) through a pipe; the lower part of the heat exchanger (5) is connected to the lower part of the secondary drying section (2) through a pipe.
2. The herbal composite base traditional Chinese medicine residue drying device according to claim 1, characterized in that: The lower rear end of the primary drying section (1) is connected to the upper end of the secondary drying section (2) via an auger (8).
3. The herbal composite base traditional Chinese medicine residue drying device according to claim 1, characterized in that: A first fan (9) is provided on the pipe connecting the first-stage drying section (1) and the upper part of the heat exchanger (5); a third fan (11) is provided on the pipe connecting the lower part of the heat exchanger (5) and the lower part of the second-stage drying section (2).
4. The herbal composite base traditional Chinese medicine residue drying device according to claim 1, characterized in that: The upper end of the secondary drying section (2) is connected to a second fan (10) via a pipe.
5. The herbal composite base traditional Chinese medicine residue drying device according to claim 1, characterized in that: The primary drying section (1) uses a rotary drum dryer.
6. The herbal composite base traditional Chinese medicine residue drying device according to claim 1, characterized in that: The secondary drying unit (2) includes a housing (21), a motor (22) detachably connected to the bottom of the housing (21), a rotating shaft (23) fixed to the output end of the motor (22) and extending into the housing (21), several screens (24) horizontally arranged inside the housing (21) and spaced a certain distance apart, and a cleaning component (25) horizontally fixed to the rotating shaft (23) and whose lower end contacts the screen (24); the number of cleaning components (25) is one more than the number of screens (24); a first hole (241) is opened in the middle of the screen (24) to facilitate the passage of the rotating shaft (23); a second hole (242) for material leakage is also opened on the screen (24); the second holes (242) on two adjacent screens (24) are staggered by the axis.
7. The herbal composite base traditional Chinese medicine residue drying device according to claim 6, characterized in that: A retaining ring (26) is fixedly connected to the upper end face of the screen (24) near the rotating shaft (23); the retaining ring (26) is concentrically arranged with the rotating shaft (23) and has a gap to facilitate the rotation of the rotating shaft (23).
8. The herbal composite base traditional Chinese medicine residue drying device according to claim 6, characterized in that: The cleaning component (25) includes a support rod (251), a connecting plate (252) fixed below the support rod (251), and cleaning bristles (253) located below the connecting plate (252) and in contact with the screen (24).