Equipment for precipitating and drying herba epimedii extract

Abstract

The invention discloses herba epimedii extract precipitation drying equipment, and relates to the technical field of drying equipment, the herba epimedii extract precipitation drying equipment comprises a rack, a drying cylinder is fixedly arranged on the upper surface of the rack, a roller drying assembly is arranged in the drying cylinder, a deslagging assembly is arranged at the bottom of the drying cylinder, and a heating ventilation mechanism is arranged at the bottom of the rack; the roller drying assembly comprises a rotating cylinder rotationally arranged in the drying cylinder. By arranging the heating ventilation mechanism and the roller drying assembly, a draught fan sends hot air heated by an electric heating pipe into a heating box, then the hot air is guided into a heat conduction pipe in a rotating cylinder through an air guide corrugated pipe and a limiting sleeve, the hot air is sprayed out from a strip-shaped air outlet hole of the heat conduction pipe, and meanwhile the rotating cylinder is driven by a driving mechanism to rotate; the herba epimedii extract precipitates are in full contact with hot air, ventilation sieve holes in the surface of the rotating cylinder further guarantee ventilation inside and outside the cylinder, all-directional and dead-corner-free drying is achieved, the drying efficiency is greatly improved, and the problem that local drying is not thorough is solved.

Description

Technical Field

[0001] This invention relates to the field of drying equipment technology, specifically to a precipitation and drying device for Epimedium extract. Background Technology

[0002] Epimedium extract is rich in a variety of active ingredients and has a wide range of applications in many fields. Drying is a key step in its production process, which is necessary to remove the moisture from the extract precipitate in order to ensure product stability and smooth subsequent processing.

[0003] Currently, the dryers commonly used in the industry have many problems: First, existing equipment usually uses a static drying method, which results in insufficient contact with hot air, leading to a long drying cycle and uneven drying in some areas; Second, the slag discharge structure of existing dryers is poorly designed, and the sticky impurities precipitated from the extract can easily cause blockage of the discharge port, requiring additional cleaning and increasing manual cleaning costs.

[0004] To address this, we designed a precipitation and drying device for Epimedium extract. Summary of the Invention

[0005] The purpose of this invention is to provide a precipitation and drying device for Epimedium extract to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a precipitation and drying device for Epimedium extract, comprising a frame, a drying cylinder fixedly disposed on the upper surface of the frame, a drum drying assembly disposed inside the drying cylinder, a slag discharge assembly disposed at the bottom of the drying cylinder, and a heating and ventilation mechanism disposed at the bottom of the frame; The drum drying assembly includes a rotating drum rotatably disposed inside the drying drum. The surface of the rotating drum is evenly distributed with a number of ventilation screen holes. A rotating shaft is fixedly connected to the tail of the rotating drum. One end of the rotating shaft extends into the interior of the rotating drum and is fixedly connected to a heat-conducting pipe. The surface of the heat-conducting pipe is provided with a number of strip-shaped air outlet holes. The slag discharge assembly includes a slag discharge hole at the bottom of the drying cylinder. The slag discharge hole is rectangular, and a rubber connecting ring is fixedly connected to the inner wall of the slag discharge hole. A trapezoidal discharge shell is fixedly connected to the bottom end of the rubber connecting ring.

[0007] Preferably, an extension plate is fixedly connected to the side of the discharge shell, and limit blocks are fixedly connected to both the front and rear surfaces of the extension plate. Two guide posts are fixedly connected to the upper surface of the frame. Limiting through holes matching the guide posts are opened on the surface of the limit blocks. The limit blocks are slidably connected to the surface of the guide posts through the limiting through holes. A compression spring is sleeved on the surface of the guide posts, and the top end of the compression spring is fixedly connected to the lower surface of the limit blocks.

[0008] Preferably, a transmission rod is rotatably connected to the left end of the drying cylinder, a drive synchronous pulley is fixedly connected to the surface of the transmission rod, and a driven synchronous pulley is fixedly connected to the surface of the rotating shaft. The position of the driven synchronous pulley corresponds to that of the drive synchronous pulley, and the drive synchronous pulley and the driven synchronous pulley are connected by a transmission belt.

[0009] Preferably, a linkage cam is fixedly connected to the surface of the transmission rod, the linkage cam is located above the extension plate and overlaps with the upper surface of the extension plate, an inverted L-shaped bracket is fixedly connected to the surface of the frame, and the top end of the guide column is fixedly connected to the surface of the inverted L-shaped bracket.

[0010] Preferably, a drive box is fixedly connected to the surface of the frame, a drive motor is fixedly connected to the inner wall of the drive box, a drive rod is fixedly connected to the rotating shaft of the drive motor, a worm is fixedly connected to the surface of the drive rod, and a worm wheel is fixedly connected to the surface of the transmission rod, with the worm meshing with the worm wheel.

[0011] Preferably, a rectangular through hole is provided on the upper surface of the frame, the position of the rectangular through hole corresponds to the discharge shell, and the size of the rectangular through hole matches the discharge shell. A collection box is placed below the frame, and the position of the collection box corresponds to the discharge port of the discharge shell.

[0012] Preferably, the heating and ventilation mechanism includes a heating box fixed to the bottom of the frame, a fan fixedly installed on the back of the heating box, the output end of the fan extending into the interior of the heating box, and a plurality of electric heating tubes fixedly arranged on the inner wall of the heating box.

[0013] Preferably, an air outlet hood is fixedly embedded on the front of the heating box, and a wind-guiding corrugated pipe is fixedly connected to the output end of the air outlet hood. A sealing cover is rotatably connected to the port of the drying cylinder, and a limiting sleeve is fixedly embedded on the surface of the sealing cover. The end of the wind-guiding corrugated pipe away from the air outlet hood is fixedly connected to the end of the limiting sleeve.

[0014] Preferably, the position of the limiting sleeve corresponds to the wind-guiding corrugated pipe, and the limiting sleeve is fitted on the end of the wind-guiding corrugated pipe. The end of the wind-guiding corrugated pipe is rotatably connected to the inner wall of the limiting sleeve, and the left end of the rotating cylinder overlaps with the surface of the sealing cover.

[0015] Preferably, the inner wall of the drying cylinder is fixedly connected to three fixed frames, the surfaces of the three fixed frames are rotatably connected to limit rollers, the three limit rollers are slidably connected to the outer surface of the rotating cylinder, and the outer surface of the rotating cylinder is fixed with two scraper strips, which are slidably connected to the inner wall of the drying cylinder.

[0016] Compared with the prior art, the beneficial effects of the present invention are: (1) By setting up a heating and ventilation mechanism and a drum drying assembly, the fan sends the hot air heated by the electric heating tube into the heating box, and then guides it through the air guide corrugated pipe and the limiting sleeve into the heat conduction pipe inside the rotating drum. The hot air is sprayed out from the strip-shaped air outlet of the heat conduction pipe. At the same time, the rotating drum rotates under the drive mechanism, so that the Epimedium extract precipitates and comes into full contact with the hot air. The ventilation sieve holes on the surface of the rotating drum further ensure the air circulation inside and outside the drum, achieving all-round, no dead angle drying, greatly improving the drying efficiency and avoiding the problem of incomplete local drying.

[0017] (2) By setting up a slag discharge assembly and adopting a trapezoidal discharge shell design, and using a rubber connecting ring to ensure a sealed connection with the slag discharge hole of the drying cylinder, the drive motor drives the rotating cylinder to rotate simultaneously, and the linkage cam rotates synchronously. The linkage cam squeezes the extension plate, and combined with the elastic effect of the compression spring, the discharge shell vibrates up and down, effectively preventing impurities of the extract from adhering and clogging inside the discharge shell, ensuring a smooth and efficient slag discharge process, and reducing material residue waste. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the present invention; Figure 3 This is a side view of the structure of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the internal structure of the drying cylinder of the present invention; Figure 6 This is a schematic diagram of the internal structure of the drum drying assembly of the present invention; Figure 7 for Figure 6 Enlarged structural diagram at point B; Figure 8 for Figure 6 Enlarged structural diagram at point C; In the diagram: 1. Frame; 2. Drying drum; 3. Slag discharge assembly; 4. Heating and ventilation mechanism; 5. Drive box; 6. Drum drying assembly; 201. Sealing cap; 202. Limiting sleeve; 203. Limiting roller; 301. Rotating cylinder; 302. Ventilation screen; 303. Rotating shaft; 304. Heat conduction pipe; 305. Strip-shaped air outlet; 306. Scraper strip; 401. Heating box; 402. Fan; 403. Electric heating element; 404. Air outlet hood; 405. Corrugated air guide pipe; 501. Drive motor; 502. Drive rod; 503. Worm gear; 504. Worm wheel; 601. Rubber connecting ring; 602. Discharge shell; 603. Extension plate; 604. Limiting block; 605. Guide post; 606. Compression spring; 607. Transmission rod; 608. Drive synchronous pulley; 609. Driven synchronous pulley; 610. Transmission belt; 611. Linkage cam; 612. Inverted L-shaped bracket; 613. Collection box. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-8 The present invention provides a technical solution: an epimedium extract precipitation and drying device, including a frame 1, a drying cylinder 2 fixedly mounted on the upper surface of the frame 1 by bolts, the drying cylinder 2 having a horizontally placed cylindrical structure, a drum drying assembly 3 coaxially mounted inside the drying cylinder 2, and a reasonable gap reserved between the rotating cylinder 301 of the drum drying assembly 3 and the inner wall of the drying cylinder 2 to ensure that the rotating cylinder 301 can rotate freely.

[0021] A rectangular slag discharge hole is centrally located at the bottom of the drying cylinder 2. This hole precisely aligns with the slag discharge assembly 6. The rubber connecting ring 601 of the slag discharge assembly 6 is bonded to the inner wall of the slag discharge hole, ensuring a sealed connection between the slag discharge hole and the discharge shell 602. This prevents hot air from overflowing from the slag discharge port during the drying process and avoids material residue at the connection point. A heating and ventilation mechanism 4 is welded to the bottom of the frame 1. The heating box 401 of the heating and ventilation mechanism 4 is located in the central area below the frame 1, with its front facing the drying cylinder 2, ensuring accurate delivery of hot air into the drying cylinder 2.

[0022] A drive box 5 is also fixedly connected to the surface of the frame 1. The drive motor 501 installed inside the drive box 5 is the power source of the entire equipment. It provides power for the rotation of the drum drying component 3 and the vibration of the slag discharge component 6 through the transmission structure.

[0023] The drum drying assembly 3 includes a rotating drum 301, which is a cylindrical body open at both ends and rotatably disposed inside the drying drum 2. Its length is adapted to the internal length of the drying drum 2, and its outer diameter is slightly smaller than the inner diameter of the drying drum 2. The surface of the rotating drum 301 is evenly distributed with several ventilation screen holes 302. The diameter of the ventilation screen holes 302 is 2-5 mm, arranged in a matrix to ensure smooth airflow inside and outside the rotating drum 301 while preventing material leakage from the screen holes.

[0024] A rotating shaft 303 is fixedly connected to the tail end of the rotating cylinder 301 (the end away from the sealing cover 201) by welding. The rotating shaft 303 is coaxial with the rotating cylinder 301, with one end extending into the interior of the rotating cylinder 301. A heat-conducting pipe 304 is fixedly connected to the extended end by bolts. The heat-conducting pipe 304 is also coaxial with the rotating cylinder 301, but its length is slightly shorter than that of the rotating cylinder 301. Several strip-shaped air outlets 305 are opened on its surface. The strip-shaped air outlets 305 are evenly distributed along the axial direction of the heat-conducting pipe 304 and face the inner wall of the rotating cylinder 301, ensuring that hot air can be directly blown onto the material inside the rotating cylinder 301, thereby improving drying efficiency.

[0025] Two scraper strips 306 are bolted to the outer surface of the rotating cylinder 301. These two scraper strips 306 are symmetrically distributed along the axial direction of the rotating cylinder 301 on both sides, with a length consistent with the length of the rotating cylinder 301. The edges of the scraper strips 306 are slidably connected to the inner wall of the drying cylinder 2, with a gap controlled between 0.5-1mm. Three fixed brackets are welded to the inner wall of the drying cylinder 2. These three brackets are evenly distributed circumferentially (with an included angle of 120°). Each bracket has a limit roller 203 rotatably connected to its surface via a bearing. All three limit rollers 203 are slidably connected to the outer surface of the rotating cylinder 301, providing support and limiting for the rotating cylinder 301, ensuring that the rotating cylinder 301 remains coaxial during rotation and preventing offset or wobbling.

[0026] The limiting roller 203 supports and limits the rotation of the rotating drum 301, ensuring the stability of the rotation of the rotating drum 301, reducing frictional loss during operation, and extending the service life of the equipment. When the scraper strip 306 rotates with the rotating drum 301, it can scrape off any material that may adhere to the inner wall of the drying drum 2, avoiding material accumulation that affects the drying effect and reducing material waste. The cooperation between the ventilation screen hole 302 and the strip-shaped air outlet hole 305 allows hot air to contact the material from both the inside and outside of the rotating drum 301 at the same time, achieving all-round drying and solving the problem of incomplete local drying in traditional equipment.

[0027] The slag discharge assembly 6 includes a rubber connecting ring 601, a discharge shell 602, an extension plate 603, a limiting block 604, a guide post 605, a compression spring 606, a transmission rod 607, a drive synchronous pulley 608, a driven synchronous pulley 609, a transmission belt 610, a linkage cam 611, an inverted L-shaped bracket 612, and a collection box 613. The rubber connecting ring 601 is made of high-temperature resistant and highly elastic silicone rubber and is fixedly connected to the inner wall of the rectangular slag discharge hole at the bottom of the drying cylinder 2. Its bottom end is bolted to a trapezoidal discharge shell 602. The upper opening size of the discharge shell 602 is the same as the slag discharge hole size, while the lower opening size is slightly smaller, forming a funnel-shaped structure to facilitate concentrated material discharge.

[0028] An extension plate 603 is welded to the side of the discharge shell 602. The extension plate 603 is horizontally positioned, and limit blocks 604 are bolted to both its front and rear surfaces. Two guide pillars 605 are welded to the upper surface of the frame 1. The two guide pillars 605 are perpendicular to the upper surface of the frame 1 and symmetrically distributed on both sides of the slag discharge hole. Limiting holes matching the guide pillars 605 are formed on the surface of the limit blocks 604. The limit blocks 604 are slidably connected to the surface of the guide pillars 605 through the limiting holes, ensuring that the discharge shell 602 can move up and down along the axial direction of the guide pillars 605.

[0029] A compression spring 606 is fitted onto the surface of the guide post 605. The top end of the compression spring 606 is fixedly connected to the lower surface of the limiting block 604, and the bottom end is fixedly connected to the upper surface of the frame 1. When the compression spring 606 is in its natural state, the discharge shell 602 remains in its initial position and is tightly fitted with the rubber connecting ring 601. An inverted L-shaped bracket 612 is fixedly connected to the surface of the frame 1 by welding. The inverted L-shaped bracket 612 fixes the guide post 605 and improves the stability of the guide post 605.

[0030] A transmission rod 607 is rotatably connected to the left end of the drying cylinder 2 via a bearing. The transmission rod 607 is horizontally positioned, and its axis is parallel to the axis of the rotating shaft 303. A drive synchronous pulley 608 is fixed to the surface of the transmission rod 607, and a driven synchronous pulley 609 is fixed to the surface of the rotating shaft 303. The diameter of the driven synchronous pulley 609 is four times that of the drive synchronous pulley 608, which serves to reduce the speed of the rotating cylinder 301. The two are connected by a transmission belt 610.

[0031] A linkage cam 611 is also fixed to the surface of the transmission rod 607 via a key. The linkage cam 611 is located directly above the extension plate 603, and its edge overlaps with the upper surface of the extension plate 603. When the linkage cam 611 rotates, it can press the extension plate 603 downward. A rectangular through hole is provided on the upper surface of the frame 1. The position of the rectangular through hole corresponds to the discharge shell 602, and its size matches the outer diameter of the discharge shell 602, ensuring that the discharge shell 602 vibrates up and down without obstruction. A collection box 613 is placed below the frame 1. The position of the collection box 613 corresponds to the discharge port of the discharge shell 602, and its opening size is larger than the lower opening size of the discharge shell 602, which facilitates the collection of dried material.

[0032] The funnel-shaped structure of the trapezoidal discharge shell 602 guides the material to fall quickly. Combined with the sealing effect of the rubber connecting ring 601, it prevents hot air leakage and avoids material residue at the joint. The synergistic effect of the linkage cam 611 and the compression spring 606 causes the discharge shell 602 to vibrate up and down during equipment operation, effectively preventing material from adhering to the inner wall of the discharge shell 602 and causing blockage, ensuring smooth and efficient slag discharge. The sliding connection between the limit block 604 and the guide column 605 limits the vibration direction of the discharge shell 602, preventing deviation during vibration and improving the operational stability of the slag discharge assembly 6.

[0033] The heating and ventilation mechanism 4 includes a heating box 401, a fan 402, an electric heating element 403, an air outlet hood 404, and a corrugated air guide pipe 405. The heating box 401 is a rectangular box structure, fixed to the bottom of the frame 1 by bolts. Its interior is hollow to accommodate the electric heating element 403 and allow air circulation. The fan 402 is bolted to the back of the heating box 401. The output end of the fan 402 extends into the interior of the heating box 401 through a pipe, ensuring that the fan 402 can deliver outside air into the heating box 401.

[0034] Several electric heating tubes 403 are fixedly installed on the inner wall of the heating chamber 401 by a bracket. The electric heating tubes 403 are evenly distributed along the length of the heating chamber 401 and are made of stainless steel. They have the characteristics of high heating efficiency and high temperature resistance, and can quickly heat the air entering the heating chamber 401 to the set temperature. An air outlet hood 404 is fixedly embedded on the front of the heating chamber 401. The air outlet hood 404 is flared, with its large end communicating with the inside of the heating chamber 401 and its small end being fixedly connected to a wind-guiding corrugated pipe 405 through a flange.

[0035] A sealing cover 201 is hinged to the left end of the drying cylinder 2. The sealing cover 201 is made of metal, and a limiting sleeve 202 is fixedly embedded on its surface. The axis of the limiting sleeve 202 coincides with the axis of the drying cylinder 2. The end of the air guide bellows 405 away from the air outlet hood 404 is fixedly connected to the end of the limiting sleeve 202 by a flange, and the end of the air guide bellows 405 is rotatably connected to the inner wall of the limiting sleeve 202 by a bearing, ensuring that the air guide bellows 405 will not be twisted or damaged when the rotating cylinder 301 rotates. The left end of the rotating cylinder 301 overlaps with the inner surface of the sealing cover 201, thereby sealing the left end of the drying cylinder 2 and reducing hot air leakage.

[0036] The combination of the fan 402 and the electric heating tube 403 can quickly generate stable hot air, providing a continuous heat source for the drying process; the flexible design of the air guide corrugated pipe 405 not only ensures the smooth delivery of hot air, but also adapts to the possible slight displacement of the sealing cover 201 and the rotation of the rotating cylinder 301, avoiding component damage caused by rigid connection.

[0037] The drive box 5 is a rectangular shell structure, fixed to the surface of the frame 1 by bolts, located on the left side of the drying cylinder 2. A drive motor 501 is fixedly connected to the inner wall of the drive box 5 via a bracket. The rotating shaft of the drive motor 501 is fixedly connected to a drive rod 502 via a coupling. The drive rod 502 is horizontally positioned, and its axis is parallel to the axis of the transmission rod 607. A worm gear 503 is fixedly connected to the surface of the drive rod 502 via a key, and a worm wheel 504 is fixedly connected to the corresponding position on the surface of the transmission rod 607 via a key. The worm gear 503 and the worm wheel 504 mesh with each other to form a transmission mechanism.

[0038] Working principle: First, the operator opens the sealing cover 201 at the left end of the drying cylinder 2, and evenly puts the Epimedium extract to be dried into the rotating cylinder 301. After the addition is completed, the sealing cover 201 is closed to ensure that the sealing cover 201 is tightly fitted to the port of the drying cylinder 2 to achieve the sealing of the drying space.

[0039] The fan 402 and electric heating tubes 403 in the heating and ventilation mechanism 4 are activated. The fan 402 starts working, drawing outside air into the heating chamber 401. As the air passes through several evenly distributed electric heating tubes 403 inside the heating chamber 401, it is rapidly heated to the set drying temperature (usually 60-80℃, adjustable according to material characteristics). Under the pressure of the fan 402, the heated air passes through the air outlet hood 404 on the front of the heating chamber 401 and enters the guide bellows 405. The guide bellows 405 then delivers the air to the limiting sleeve 202 on the sealing cover 201, and from there it is guided into the heat-conducting pipe 304 inside the rotating drum 301. After entering the heat-conducting pipe 304, the hot air is ejected from several strip-shaped air outlets 305 on the surface of the heat-conducting pipe 304, directly acting on the precipitation of the Epimedium extract inside the rotating drum 301. Meanwhile, some hot air will flow through the ventilation screen holes 302 on the surface of the rotating cylinder 301 in the gap between the rotating cylinder 301 and the drying cylinder 2, forming a hot air circulation that is sandwiched between the inside and outside, ensuring that the material can fully contact the hot air.

[0040] While the hot air is being conveyed, the drive motor 501 inside the drive box 5 is started. The rotating shaft of the drive motor 501 drives the drive rod 502 to rotate, and the worm gear 503 on the surface of the drive rod 502 rotates accordingly. Since the worm gear 503 meshes with the worm wheel 504 on the surface of the transmission rod 607, the rotation of the worm gear 503 drives the worm wheel 504 to rotate, thereby driving the transmission rod 607 to rotate synchronously. When the transmission rod 607 rotates, it drives the driven synchronous wheel 609 on the surface of the rotating shaft 303 to rotate through the drive synchronous wheel 608 and the transmission belt 610. The rotating shaft 303 then drives the rotating drum 301 to rotate inside the drying drum 2. The rotation speed of the rotating drum 301 is controlled at 10-30 r / min, so that the material inside is constantly turned and rolled, avoiding material accumulation and ensuring that each piece of material can be evenly contacted by the hot air sprayed from the strip-shaped air outlet 305 and the hot air entering from the ventilation screen 302. During the material turning process, hot air carries away the moisture in the material, while impurities in the material are discharged from the rotating drum 301 through the ventilation screen 302 along with the hot air, and finally discharged from the discharge shell 602 to achieve the drying of the material.

[0041] On the other hand, when the transmission rod 607 rotates, it drives the linkage cam 611 on the surface to rotate synchronously. During the rotation of the linkage cam 611, its protruding part periodically presses the extension plate 603, causing the extension plate 603 to drive the limiting block 604 to slide downward along the guide post 605, while simultaneously compressing the compression spring 606 below. After the protruding part of the linkage cam 611 passes the extension plate 603, the compression spring 606, under the action of elastic restoring force, pushes the limiting block 604 and the extension plate 603 to return to their original position upward. This cycle is repeated to realize the up-and-down reciprocating vibration of the discharge shell 602, preparing for the subsequent material discharge.

[0042] In addition, when the rotating drum 301 rotates, the scraper strips 306 on its outer surface rotate synchronously to scrape off any material that may adhere to the inner wall of the drying drum 2, preventing material accumulation from affecting the drying effect and ensuring equipment cleanliness. The three limiting rollers 203 on the inner wall of the drying drum 2 are always in sliding contact with the outer surface of the rotating drum 301, ensuring that the rotating drum 301 remains coaxial and stable during rotation, reducing vibration and noise. After the set drying time (usually 1-3 hours), the material is dried. The operator opens the sealing cover 201 of the drying drum 2 to discharge the material, completing the collection of the extracted material.

Claims

1. A precipitation and drying device for Epimedium extract, comprising a frame (1), characterized in that: A drying cylinder (2) is fixedly installed on the upper surface of the frame (1), a drum drying assembly (3) is installed inside the drying cylinder (2), a slag discharge assembly (6) is installed at the bottom of the drying cylinder (2), and a heating and ventilation mechanism (4) is installed at the bottom of the frame (1). The drum drying assembly (3) includes a rotating drum (301) rotatably disposed inside the drying drum (2). The surface of the rotating drum (301) is evenly distributed with a number of ventilation screen holes (302). The tail of the rotating drum (301) is fixedly connected to a rotating shaft (303). One end of the rotating shaft (303) extends into the interior of the rotating drum (301) and is fixedly connected to a heat-conducting pipe (304). The surface of the heat-conducting pipe (304) is provided with a number of strip-shaped air outlet holes (305). The slag discharge assembly (6) includes a slag discharge hole at the bottom of the drying cylinder (2). The slag discharge hole is rectangular, and a rubber connecting ring (601) is fixedly connected to the inner wall of the slag discharge hole. A trapezoidal discharge shell (602) is fixedly connected to the bottom of the rubber connecting ring (601).

2. The precipitation and drying equipment for Epimedium extract according to claim 1, characterized in that: An extension plate (603) is fixedly connected to the side of the discharge shell (602). Limiting blocks (604) are fixedly connected to the front and rear surfaces of the extension plate (603). Two guide posts (605) are fixedly connected to the upper surface of the frame (1). The surface of the limiting block (604) is provided with a limiting through hole that matches the guide post (605). The limiting block (604) is slidably connected to the surface of the guide post (605) through the limiting through hole. A compression spring (606) is sleeved on the surface of the guide post (605). The top end of the compression spring (606) is fixedly connected to the lower surface of the limiting block (604).

3. The precipitation and drying equipment for Epimedium extract according to claim 2, characterized in that: A transmission rod (607) is rotatably connected to the left end of the drying cylinder (2). A drive synchronous wheel (608) is fixedly connected to the surface of the transmission rod (607). A driven synchronous wheel (609) is fixedly connected to the surface of the rotating shaft (303). The position of the driven synchronous wheel (609) corresponds to that of the drive synchronous wheel (608). The drive synchronous wheel (608) and the driven synchronous wheel (609) are connected by a transmission belt (610).

4. The precipitation and drying equipment for Epimedium extract according to claim 3, characterized in that: A linkage cam (611) is fixedly connected to the surface of the transmission rod (607). The linkage cam (611) is located above the extension plate (603) and overlaps with the upper surface of the extension plate (603). An inverted L-shaped bracket (612) is fixedly connected to the surface of the frame (1). The top end of the guide column (605) is fixedly connected to the surface of the inverted L-shaped bracket (612).

5. The precipitation and drying equipment for Epimedium extract according to claim 4, characterized in that: A drive box (5) is fixedly connected to the surface of the frame (1). A drive motor (501) is fixedly connected to the inner wall of the drive box (5). A drive rod (502) is fixedly connected to the rotating shaft of the drive motor (501). A worm (503) is fixedly connected to the surface of the drive rod (502). A worm wheel (504) is fixedly connected to the surface of the transmission rod (607). The worm (503) meshes with the worm wheel (504).

6. The precipitation and drying equipment for Epimedium extract according to claim 5, characterized in that: The upper surface of the frame (1) is provided with a rectangular through hole, the position of which corresponds to the discharge shell (602), and the size of which matches the discharge shell (602). A collection box (613) is placed below the frame (1), and the position of the collection box (613) corresponds to the discharge port of the discharge shell (602).

7. The precipitation and drying equipment for Epimedium extract according to claim 1, characterized in that: The heating and ventilation mechanism (4) includes a heating box (401) fixed at the bottom of the frame (1). A fan (402) is fixedly installed on the back of the heating box (401). The output end of the fan (402) extends into the interior of the heating box (401). Several electric heating tubes (403) are fixedly arranged on the inner wall of the heating box (401).

8. The precipitation and drying equipment for Epimedium extract according to claim 7, characterized in that: The front of the heating box (401) is fixedly fitted with an air outlet hood (404), and the output end of the air outlet hood (404) is fixedly connected with a wind-guiding corrugated pipe (405). The port of the drying cylinder (2) is rotatably connected with a sealing cover (201), and a limiting sleeve (202) is fixedly fitted on the surface of the sealing cover (201). The end of the wind-guiding corrugated pipe (405) away from the air outlet hood (404) is fixedly connected to the end of the limiting sleeve (202).

9. The precipitation and drying equipment for Epimedium extract according to claim 8, characterized in that: The position of the limiting sleeve (202) corresponds to that of the wind-guiding corrugated pipe (405), and the limiting sleeve (202) is sleeved on the end of the wind-guiding corrugated pipe (405). The end of the wind-guiding corrugated pipe (405) is rotatably connected to the inner wall of the limiting sleeve (202), and the left end of the rotating cylinder (301) overlaps with the surface of the sealing cover (201).

10. The precipitation and drying equipment for Epimedium extract according to claim 9, characterized in that: The inner wall of the drying cylinder (2) is fixedly connected to three fixed frames, and the surfaces of the three fixed frames are rotatably connected to limit rollers (203). The three limit rollers (203) are slidably connected to the outer surface of the rotating cylinder (301). The outer surface of the rotating cylinder (301) is fixed with two scraper strips (306), and the scraper strips (306) are slidably connected to the inner wall of the drying cylinder (2).

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