Preparation method of Chinese herbal medicine microorganism compound feed additive for livestock and poultry for antibiotic replacement breeding

Abstract

The invention relates to the technical field of feed additive preparation, and discloses a preparation method of a Chinese herbal medicine microorganism compound feed additive for livestock and poultry for antibiotic replacement breeding, and the preparation method comprises the following steps: preparing raw materials; preparing fermentation liquor; compressing the fermentation liquor; curing the fermentation liquor; drying and storing; the preparation device comprises a supporting frame, a crushing box and a first servo motor, a feeding box is fixed to the top of the crushing box in a penetrating mode, a rolling box is fixed to the bottom of the crushing box in a penetrating mode, and crushing rollers are symmetrically and rotationally arranged in the rolling box. The fineness of the granularity of the crushed herbal medicine is ensured, the problem that the granularity of the crushed herbal medicine microbial compound feed additive for livestock and poultry is not enough during preparation is solved, the efficacy of the herbal medicine can be better stimulated under the extrusion and crushing action of rolling, and the practicability of the preparation device is improved.

Description

Technical Field

[0001] This invention application relates to the technical field of feed additive preparation, specifically a preparation method of a Chinese herbal medicine-microorganism compound feed additive for livestock and poultry used in antibiotic-free breeding. Background Art

[0002] The Chinese medicine-microorganism feed additive is a biological preparation made by adding Chinese herbal medicines and beneficial microorganisms approved by the Ministry of Agriculture and Rural Affairs through fermentation. It is a microecological preparation of Chinese medicine plus live bacteria used to improve the autoimmunity of livestock and poultry. By adjusting the microecological balance in animals and stimulating the non-specific immune function of animals themselves, it can treat diseases when sick, prevent diseases when not sick, reduce the occurrence of viral diseases, and at the same time avoid the abuse of antibiotics, so as to achieve the purpose of improving breeding efficiency and food safety. It is an effective means for the prevention and treatment of avian influenza, chicken plague, porcine hyperthermia disease, blue ear disease, duck viral hepatitis, serositis, canine parvovirus disease, as well as epidemic diseases of racing pigeons, aquaculture, fur animals, and economic animals.

[0003] After strictly screening Chinese herbal medicines and crushing them through biotechnology, strains are inoculated and packaged, and then anaerobic fermentation is carried out. The product is in the form of a moist powder. By maintaining appropriate moisture and nutrients, the activity of beneficial bacteria is ensured. When preparing the feed additive, various Chinese herbal medicines need to be crushed into powder and then mixed, and then probiotics are added. When the existing crushing devices are crushing, most use blades or grinding rollers. The particle size of the powder crushed by the blades is relatively large, and direct grinding by the grinding rollers is prone to splashing. Summary of the Invention

[0004] In order to solve the problem that the particle size after crushing is insufficient when preparing the existing Chinese herbal medicine-microorganism compound feed additive for livestock and poultry, the present invention provides a preparation method of a Chinese herbal medicine-microorganism compound feed additive for livestock and poultry used in antibiotic-free breeding to solve the above problems.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A preparation method of a Chinese herbal medicine-microorganism compound feed additive for livestock and poultry used in antibiotic-free breeding, the preparation method includes the following steps:

[0007] Step A: Prepare raw materials;

[0008] Step B: Prepare fermentation broth;

[0009] Step C: Compress the fermentation broth;

[0010] Step D: Carry out ripening treatment on the fermentation broth;

[0011] Step E: Dry and store.

[0012] Further, the step A includes:

[0013] Step A1: Prepare a quantified amount of Chinese herbal medicines, probiotics, starch, sucrose, and protein. Remove impurities from the Chinese herbal medicines, wash them clean, and dry them. After drying, crush and grind them into powder.

[0014] Step A2: The Chinese herbal medicines include astragalus membranaceus, dandelion, codonopsis pilosula, mugwort leaf, hawthorn, pine joint, and dried tangerine peel. The probiotics include highly active yeast and lactic acid bacteria.

[0015] Among them, there are 15 - 20 parts of astragalus membranaceus, 10 - 15 parts of dandelion, 15 - 20 parts of codonopsis pilosula, 15 - 18 parts of mugwort leaf, 10 - 15 parts of hawthorn, 8 - 12 parts of pine joint, 12 - 15 parts of dried tangerine peel, 15 - 25 parts of highly active yeast, and 20 - 30 parts of lactic acid bacteria.

[0016] Further, the said Step B includes:

[0017] Step B1: Mix the crushed Chinese herbal medicine powder evenly with the microbial bacteria powder. After adjusting the pH value, add clear water, add the strains, and load them into a sealed anaerobic reactor for fermentation.

[0018] Step B2: The fermentation temperature is generally controlled at 30°C - 35°C, and the fermentation time is 3 - 7 days.

[0019] Further, in the said Step C, after the fermentation is completed, put the fermentation broth into a vacuum bag, and eliminate the oxygen in the fermentation broth by the way of vacuum compression combined with nitrogen replacement, so that an anaerobic environment can be maintained in the vacuum bag.

[0020] Further, the said Step D includes:

[0021] Step D1: Transfer the compressed and vacuumed fermentation broth to a ripening tank, add 3 - 5% brown sugar, control the appropriate temperature and humidity. The ripening temperature is 25°C - 35°C, and the ripening humidity is 65% - 70%.

[0022] Step D2: The ripening time is generally 6 - 8 days. During the ripening process, it is necessary to regularly adjust the temperature and humidity to control them within the range.

[0023] Further, the said Step E includes:

[0024] Step E1: Make the ripened fermentation broth into a dry fermented Chinese herbal medicine feed additive through vacuum freeze - drying, and then store the additive in a sealed, moisture - proof, and light - proof container, and store it inside a dry and cool warehouse.

[0025] Step E2: When drying, the temperature is controlled at 45°C - 55°C. The temperature inside the warehouse is maintained at 15°C - 30°C in the feeding trough, and the humidity is maintained at 45% - 60%.

[0026] Furthermore, a preparation device for a Chinese herbal medicine microbial compound feed additive for livestock and poultry used in antibiotic-free breeding, the preparation device includes a support frame, a crushing box and a servo motor I. The top of the crushing box is fixedly penetrated with a feeding box, and the bottom of the crushing box is fixedly penetrated with a rolling press box. Inside the rolling press box, crushing rollers are symmetrically and rotatably arranged. At one end of each of the two crushing rollers close to the crushing box, a rotating rod is fixed. At one end of each of the two rotating rods extending outside the rolling press box, a pulley is fixed. Transmission belts are sleeved on both pulleys. At one end of each of the two transmission belts away from the rotating rod, they are sleeved on the pulleys of the linkage rod on the side of the crushing box. One end of the linkage rod extending into the crushing box is fixed with a crushing blade. The bottom of the rolling press box is fixedly penetrated with a feeding box. Inside the feeding box, a feeding conveyor belt is arranged. At both ends inside the feeding conveyor belt, driving rollers are sleeved. The driving rollers are rotatably connected inside the feeding box. A servo motor II is arranged at the rear of the feeding box. The output rod of the servo motor II rotates through the feeding box and is fixed on the driving roller.

[0027] Furthermore, a feeding through groove matching the rolling press box is opened at the top of the feeding box. Inside the feeding box with a diameter below the feeding through groove and above the feeding conveyor belt, a screen box is fixed. A sundry feeding port is opened at the side end of the feeding box on the side of the screen box. A feeding support plate is fixed at the bottom of the sundry feeding port. The screen box is arranged to be inclined downward towards the feeding support plate end.

[0028] Furthermore, guide sleeves are fixed on the inner walls of the feeding box at the tops of the two crushing rollers. The bottoms of the guide sleeves are slidably attached to the outer surfaces of the crushing rollers. At the bottoms of the crushing rollers, cleaning scrapers I are symmetrically attached. Both ends of the cleaning scrapers I are fixed on the inner wall of the rolling press box.

[0029] Furthermore, a guide plate is fixed on the inner wall of the feeding box below the screen box. The bottom of the guide plate is slidably attached to the top surface of the feeding conveyor belt. A feeding scraper is arranged at the bottom of the discharging end of the feeding conveyor belt. Both ends of the feeding scraper are fixed inside the feeding box by bolts. A medicinal material feeding port is opened at one end of the feeding box away from the feeding support plate.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] 1. In the present invention, through the method of crushing and rolling mixing, the Chinese herbal medicine can be crushed first and then rolled, ensuring the fineness of the particle size after the herbal medicine is crushed, solving the problem that the particle size after crushing is insufficient in the preparation of the existing Chinese herbal medicine microbial compound feed additive for livestock and poultry, and under the extrusion and crushing effect of rolling, the medicinal effect of the herbal medicine can be better stimulated, improving the practicability of the preparation device.

[0032] 2. In the present invention, through the screen box at the blanking port, after crushing and rolling, the unqualified medicinal materials are filtered out, and the qualified medicinal materials are discharged uniformly, which can better stimulate the medicinal efficacy of the medicinal materials, ensure the crushing effect, and contribute to the subsequent fermentation of the medicinal materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic flowchart of the preparation method according to an embodiment of the present application;

[0035] Figure 2 is Figure 1 The three-dimensional schematic diagram of the opened structure in the illustrated embodiment;

[0036] Figure 3 is Figure 1 The three-dimensional schematic diagram of the adjustment component and the rotation component in the illustrated embodiment;

[0037] Figure 4 is Figure 1 The three-dimensional schematic diagram of the protection component structure in the illustrated embodiment;

[0038] Figure 5 is Figure 1 The schematic top view sectional view of the opened structure in the illustrated embodiment.

[0040] The meanings of the reference numerals in the drawings: 1, support frame; 2, crushing box; 3, servo motor 1; 4, feeding box; 5, rolling box; 6, blanking box; 7, crushing roller; 8, rotating rod; 9, transmission belt; 10, blanking belt; 11, servo motor 2; 12, guide sleeve; 13, blanking scraper 1; 14, screen box; 15, blanking through groove; 16, guide plate; 17, blanking support plate; 18, blanking scraper; 19, pulley; 20, linkage rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0041] In order to make the application purpose, features, and advantages of the present application more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the following described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0042] Refer to Figure 1 、 Figure 2 and Figure 4 A preparation method of a Chinese herbal medicine-microorganism compound feed additive for livestock and poultry used for antibiotic-free breeding, the preparation method comprising the following steps:

[0043] Step A. Prepare raw materials;

[0044] Step A1. Prepare a quantified amount of Chinese herbal medicine, probiotics, starch, sucrose and protein. Remove impurities from the Chinese herbal medicine, wash it clean and dry it, and after drying, crush and grind it into powder;

[0045] Step A2. The Chinese herbal medicine includes astragalus membranaceus, dandelion, codonopsis pilosula, artemisia argyi, hawthorn, pine joint and dried tangerine peel, and the probiotics include highly active yeast and lactic acid bacteria;

[0046] Step A3. Among them, there are 15-20 parts of astragalus membranaceus, 10-15 parts of dandelion, 15-20 parts of codonopsis pilosula, 15-18 parts of artemisia argyi, 10-15 parts of hawthorn, 8-12 parts of pine joint, 12-15 parts of dried tangerine peel, 15-25 parts of highly active yeast, and 20-30 parts of lactic acid bacteria;

[0047] Step B. Prepare fermentation broth;

[0048] Step B1. Mix the crushed Chinese herbal medicine powder with microbial powder evenly, adjust the pH value, add clear water, add strains and put them into a closed anaerobic reactor for fermentation;

[0049] Step B2. The fermentation temperature is generally controlled at 30°C - 35°C, and the fermentation time is 3-7 days;

[0050] Step C. Compress the fermentation broth. After fermentation, put the fermentation broth into a vacuum bag, and eliminate the oxygen in the fermentation broth by means of vacuum compression combined with nitrogen replacement, so that an anaerobic environment can be maintained in the vacuum bag, and the anaerobic growth rate and efficiency of the bacteria group can be improved;

[0051] Step D. Ripen the fermentation broth;

[0052] Step D1. Transfer the compressed and vacuumed fermentation broth to a ripening tank, add 3-5% brown sugar, control the appropriate temperature and humidity, the ripening temperature is 25-35°C, and the ripening humidity is 65%-70%;

[0053] Step D2. The ripening time is generally 6-8 days. During the ripening process, the temperature and humidity need to be adjusted regularly to control them within the range;

[0054] Step E. Dry and store.

[0055] Step E1: The ripened fermentation broth is made into a dried fermented Chinese herbal medicine feed additive through vacuum freeze-drying, and then the additive is stored in a sealed, moisture-proof, and light-proof container and placed inside a dry and cool warehouse.

[0056] In step E2, the temperature during drying is controlled at 45 - 55°C, the temperature inside the warehouse is maintained at 15 - 30°C in the blanking trough, and the humidity is maintained at 45% - 60%.

[0057] A preparation device for a compound feed additive of Chinese herbal medicine and microorganism for antibiotic-free breeding of livestock and poultry. The preparation device includes a support frame 1, a crushing box 2, and a servo motor 1 3. A feeding box 4 is fixedly penetrated through the top of the crushing box 2, and a rolling box 5 is fixedly penetrated through the bottom of the crushing box 2. Two crushing rollers 7 are symmetrically and rotatably arranged inside the rolling box 5. One end of each of the two crushing rollers 7 close to the crushing box 2 is fixedly provided with a rotating rod 8. One end of each of the two rotating rods 8 extending outside the rolling box 5 is fixedly provided with a pulley 19. Transmission belts 9 are sleeved on both pulleys. One end of each of the two transmission belts 9 away from the rotating rod 8 is sleeved on the pulley 19 of the linkage rod 20 on the side of the crushing box 2. One end of the linkage rod 20 extending inside the crushing box 2 is fixedly provided with a crushing blade. A blanking box 6 is fixedly penetrated through the bottom of the rolling box 5. A blanking conveyor belt 10 is arranged inside the blanking box 6. Driving rollers are sleeved at both ends inside the blanking conveyor belt 10. The driving rollers are rotatably connected inside the blanking box 6. A servo motor 2 11 is arranged at the rear of the blanking box 6. The output rod of the servo motor 2 11 rotatably penetrates through the blanking box 6 and is fixed on the driving roller.

[0058] A blanking trough 15 matching the rolling box 5 is opened at the top of the blanking box 6. A screen box 14 is fixedly arranged inside the blanking box 6 below the blanking trough 15 and above the blanking conveyor belt 10. A sundry material blanking port is opened at the side end of the blanking box 6 on the side of the screen box 14. A blanking support plate 17 is fixedly arranged at the bottom of the sundry material blanking port. The screen box 14 is arranged to be inclined downward towards the blanking support plate 17. After the broken medicinal materials fall on the screen box 14, they can slide towards the sundry material blanking port under the guidance of the screen box 14, which is convenient for discharging unqualified broken medicinal materials. Then, the collected unqualified broken medicinal materials are poured back into the feeding box 4 for secondary crushing to avoid waste of medicinal materials.

[0059] Guide sleeves 12 are fixedly arranged on the inner walls of the blanking box 6 at the tops of the two crushing rollers 7. The bottoms of the guide sleeves 12 are slidably attached to the outer surfaces of the crushing rollers 7. Cleaning scrapers 1 13 are symmetrically attached to the bottoms of the crushing rollers 7. After the crushing rollers 7 roll and crush the medicinal materials, the cleaning scrapers 1 13 can scrape off the medicinal materials remaining on the outer surfaces of the crushing rollers 7 to avoid the outer surfaces of the broken rollers 7 being contaminated with broken medicinal materials and affecting the subsequent breaking effect. Both ends of the cleaning scrapers 1 13 are fixed on the inner wall of the rolling box 5.

[0060] On the inner wall of the blanking box 6 below the screen box 14, a guiding plate 16 is fixed. The bottom of the guiding plate 16 is slidably attached to the top surface of the blanking conveyor belt 10. At the bottom of the blanking end of the blanking conveyor belt 10, a blanking scraper 18 is provided. During blanking, the residual medicinal powder on the blanking conveyor belt 10 can be scraped off to avoid waste of medicinal materials. Both ends of the blanking scraper 18 are fixed inside the blanking box 6 by bolts. At one end of the blanking box 6 away from the blanking support plate 17, a medicinal material blanking port is provided.

[0061] Working principle: When pulverizing the cleaned medicinal materials, first put the medicinal materials into the feeding box 4. Under the guidance of the feeding box 4, they enter the crushing box 2. The first servo motor 3 operates to drive the two crushing blades inside the crushing box 2 to rotate relative to each other to pulverize the medicinal materials. The pulverized medicinal materials enter the rolling box 5 and, under the guidance of the guiding sleeve 12, enter between the two crushing rollers 7. At this time, the two crushing rollers 7 rotate relative to each other driven by the rotating rod 8, the pulley 19, and the linkage rod 20, so as to extrude the medicinal material fragments for further pulverization. After pulverization, they fall on the screen box 14 through the blanking through slot 15 and are filtered by the screen box 14. After filtration, the qualified medicinal powder falls on the blanking conveyor belt 10 and is discharged from the blanking box 6 driven by the blanking conveyor belt 10. The unqualified medicinal powder is discharged through the blanking support plate 17 under the guidance of the screen box 14.

[0062] For those skilled in the art, it is obvious that this application is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of this application, this application can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of this application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the same elements of the claims are intended to be included in this application. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0063] The above is the case. The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A method for preparing a Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic replacement breeding, characterized in that: The preparation method comprises the following steps: Step (A), preparing raw materials; Step (B), fermentation broth preparation; Step (C), compressing the fermentation liquid; Step (D), fermentation liquid maturation treatment; Step (E), drying and storage.

2. The method for preparing the Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic replacement breeding according to claim 1, characterized in that: The step (A) comprises: Step (A1), preparing a certain amount of Chinese herbal medicine, probiotics, starch, sucrose and protein, removing impurities from the Chinese herbal medicine, cleaning and drying, and then crushing and grinding into powder after drying; Step (A2), Chinese herbal medicines include astragalus, dandelion, codonopsis, wormwood, hawthorn, pine knot and tangerine peel, and probiotics include highly active yeast and lactic acid bacteria; Step (A3), wherein the ingredients include 15-20 parts of astragalus, 10-15 parts of dandelion, 15-20 parts of codonopsis, 15-18 parts of wormwood, 10-15 parts of hawthorn, 8-12 parts of pine knot, 12-15 parts of tangerine peel, 15-25 parts of highly active yeast, and 20-30 parts of lactic acid bacteria.

3. The method for preparing the Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic replacement breeding according to claim 1, characterized in that: The step (B) comprises: Step (B1), mixing the crushed Chinese herbal medicine powder and microbial powder evenly, adding clean water after adjusting the pH value, adding bacteria and placing in a closed anaerobic reactor for fermentation; Step (B2), the fermentation temperature is generally controlled at 30°C-35°C, and the fermentation time is 3-7 days.

4. The method for preparing the Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic replacement breeding according to claim 1, characterized in that: In the step (C), after the fermentation is completed, the fermentation liquid is placed in a vacuum bag, and the oxygen in the fermentation liquid is eliminated by vacuum compression combined with nitrogen replacement, so that an anaerobic environment can be maintained in the vacuum bag.

5. The method for preparing the Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic replacement breeding according to claim 1, characterized in that: The step (D) comprises: Step (D1), transferring the compressed vacuum fermentation liquid to a maturation tank, adding 3-5% brown sugar, and controlling the appropriate temperature and humidity, the maturation temperature is 25-35°C, and the maturation humidity is 65%-70%; Step (D2), the aging time is generally 6-8 days. During the aging process, the temperature and humidity need to be adjusted regularly to keep them within the range.

6. The method for preparing the Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic replacement breeding according to claim 1, characterized in that: The step (E) comprises: Step (E1), preparing a dry fermented Chinese medicinal feed additive by vacuum freeze drying the matured fermented liquid, and then storing the additive in a sealed, moisture-proof and light-proof container in a dry and cool warehouse; Step (E2), the temperature during drying is controlled at 45-55°C, the temperature in the warehouse is maintained at -30°C in the material discharge chute (15), and the humidity is maintained at 45%-60%.

7. A preparation device for a Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic-alternative breeding is obtained according to the method for preparing a Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic-alternative breeding according to any one of claims 1 to 6, characterized in that: The preparation device comprises a support frame (1), a crushing box (2) and a servo motor (3); a feeding box (4) is fixed through the top of the crushing box (2); a roller pressing box (5) is fixed through the bottom of the crushing box (2); crushing rollers (7) are symmetrically arranged inside the roller pressing box (5); a rotating rod (8) is fixed to one end of the two crushing rollers (7) close to the crushing box (2); a pulley (19) is fixed to one end of the two rotating rods (8) extending to the outside of the roller pressing box (5); a transmission belt (9) is sleeved on the two pulleys; the two transmission belts (9) are away from the rotating rod (8) ) are sleeved on the pulley (19) of the linkage rod (20) on the side of the crushing box (2); a crushing blade is fixed to one end of the linkage rod (20) extending into the crushing box (2); a feed box (6) is fixedly passed through the bottom of the roller press box (5); a feed box (6) is provided with a feed conveyor belt (10) inside the feed box (6); driving rollers are sleeved on both ends of the feed conveyor belt (10); the driving rollers are rotatably connected to the inside of the feed box (6); a servo motor 2 (11) is provided on the rear side of the feed box (6); an output rod of the servo motor 2 (11) rotatably passes through the feed box (6) and is fixed on the driving roller.

8. The device for preparing the Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic replacement breeding according to claim 7, characterized in that: The top of the material discharge box (6) is provided with a material discharge slot (15) cooperating with the roller press box (5); a screen box (14) is fixed inside the material discharge box (6) below the material discharge slot (15) and above the material discharge conveyor belt (10); a debris discharge port is provided at the side end of the material discharge box (6) on the side of the screen box (14); a material discharge support plate (17) is fixed at the bottom of the debris discharge port; the screen box (14) is arranged to be inclined downward toward the end of the material discharge support plate (17).

9. The device for preparing the Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic replacement breeding according to claim 7, characterized in that: A guide sleeve (12) is fixed to the inner wall of the material discharge box (6) at the top of the two crushing rollers (7), and the bottom of the guide sleeve (12) is slidably fitted with the outer surface of the crushing roller (7). A cleaning scraper (13) is symmetrically provided on the bottom of the crushing roller (7), and both ends of the cleaning scraper (13) are fixed to the inner wall of the roller press box (5).

10. The device for preparing the Chinese herbal medicine microbial compound feed additive for livestock and poultry for antibiotic replacement breeding according to claim 8, characterized in that: A guide plate (16) is fixed on the inner wall of the unloading box (6) below the screen box (14), and the bottom of the guide plate (16) is slidably fitted with the top surface of the unloading conveyor belt (10). A unloading scraper (18) is provided at the bottom of the unloading end of the unloading conveyor belt (10), and both ends of the unloading scraper (18) are fixed to the inside of the unloading box (6) by bolts. A medicinal material unloading port is provided at one end of the unloading box (6) away from the unloading support plate (17).

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