Inoculation device for biological fermentation feed and preparation method of biological fermentation feed

Abstract

The invention discloses a biological fermentation feed inoculation device which comprises an inoculation tank, a feed inlet connected to the top of the inoculation tank and used for feeding and a stock solution tank used for storing inoculation liquid, and the stock solution tank is fixedly connected to the left side of the inoculation tank; the biological fermentation feed inoculation device further comprises a first shaft rod which transversely penetrates through and is rotationally connected to the interior of the feeding opening, a buffer plate is rotationally connected to the top of the inner side of the feeding opening, connecting rods are fixedly connected to the outer side of a second shaft rod at equal intervals, and a bottom groove is formed in the bottom of the inoculation tank in a communicating mode. The material inoculation quality can be improved, and the inoculation efficiency can be improved. The invention also discloses a preparation method of the biological fermentation feed, and the preparation method of the biological fermentation feed is used for fermenting the straw material, so that the nutritional value and the utilization rate of the straw can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of biological feed, and in particular to a biological fermentation feed inoculation device and a biological fermentation feed preparation method. Background Art

[0002] my country is a large agricultural country. In agricultural production, large-scale food crops are planted, mainly rice, wheat, corn, etc. The large-scale planting of food crops produces abundant crop straw. According to statistics, in 2021 alone, the national crop straw output was 865 million tons, of which 734 million tons were collectible. However, for a long time, most of my country's crop straw has not been fully utilized, and has been mostly used as waste or even directly burned, which not only pollutes the atmospheric environment and destroys the soil structure, but also causes a waste of resources.

[0003] In recent years, the utilization of crop straw as feed has become one of the important ways of crop straw utilization that is strongly advocated. By promoting the utilization of crop straw as feed, we can alleviate the dilemma of tight feed resources in my country, which is of great significance to promoting the sustainable development of animal husbandry.

[0004] Due to the high crude fiber content of straw, its nutritional value is low if it is used directly as feed. However, by subjecting the straw raw materials to biological fermentation and preparing biological fermentation feed, the nutritional value and utilization rate of the straw can be effectively improved.

[0005] In the process of preparing biological fermentation feed, the raw materials need to be inoculated. For example, the Chinese invention patent with authorization announcement number CN104855679B proposes an inoculation method for solid-state fermentation of feed, which is characterized by including the following steps: preparing an inoculation solution according to the ratio of auxiliary materials, water, and bacterial strains, and injecting the solution into the inoculation pool after stirring evenly; pouring the feed raw materials into the inoculation pool and stirring continuously to allow them to fully soak and absorb the inoculation solution, and then using a pump to suck out the soaked material and discharge it to a screw press; the screw press extrude and dehydrate the continuously transported wet material, and the high pressure generated by the extrusion during the pressing squeezes the inoculation solution into the feed particles; the pressed material is then broken up by a loosener and sent to the fermentation site for solid-state fermentation. In the inoculation method of the present invention, the feed raw materials absorb the inoculation solution by soaking, so they have better surface uniformity; the inoculation solution is pressed into the material particles by extremely high pressure pressing and extrusion, so the material has better internal fermentation uniformity; the efficiency and quality of the subsequent fermentation process are improved; At the same time, a Chinese patent with authorization announcement number CN209397212U proposes a fermentation inoculator for fermented feed production, including a tank body with a feed inlet and a stirring shaft arranged in the tank body, and a driving motor for driving the stirring shaft to rotate, a bacterial liquid spraying pipe is arranged in the tank body, a nozzle facing the stirring shaft is arranged on the bacterial liquid spraying pipe, a pneumatic unloading door is arranged at the bottom of the tank body, and an inner spiral blade and an outer spiral blade extending along the axial direction are fixedly connected to the stirring shaft through a support rod, the inner diameter of the outer spiral blade is larger than the outer diameter of the inner spiral blade, and the outer spiral blade and the inner spiral blade have opposite rotation directions. The utility model provides special equipment for mixed inoculation of fermented feed, and utilizes the combined action of the inner spiral blade and the outer spiral blade to move the feed in both axial and circumferential directions. The opposite rotation direction is set to improve the mixing efficiency and ensure the uniformity of the mixing of the feed and the bacterial liquid; However, in combination with the existing technology, there are still some deficiencies in the actual preparation process of biological fermentation feed, such as: The traditional pressing method can ensure that the inoculation liquid enters the feed, but it is often difficult for the inoculation liquid to fully enter the gaps between the raw materials due to insufficient soaking time or incorrect pressing operation time. As a result, some raw materials will still be in a dry state after pressing, affecting the inoculation quality of the inoculation liquid and resulting in poor inoculation effect. Most common inoculation devices simply mix and stir the inoculation liquid and feed raw materials. The inoculation method is single. While ensuring the contact between the inoculation liquid and the feed raw materials, it cannot ensure that the inoculation liquid is fully squeezed into the feed raw materials, which is not conducive to improving the inoculation quality.

[0006] Therefore, we propose a biological fermentation feed inoculation device to solve the above-mentioned problems. Summary of the invention

[0007] The purpose of the present invention is to provide a biological fermentation feed inoculation device to solve the problem raised in the above background technology that the inoculation quality cannot be guaranteed during the current feed inoculation, which is not conducive to improving the inoculation efficiency.

[0008] To achieve the above object, the present invention provides the following technical solution: a biological fermentation feed inoculation device, comprising: an inoculation tank and a feed port connected to the top of the inoculation tank for feeding and a stock liquid tank for storing inoculation liquid, the inoculation tank and the feed port are arranged in an integrated structure, the stock liquid tank is fixedly connected to the left side of the inoculation tank, and a pump is installed above the stock liquid tank for liquid transportation; Also includes: A first shaft rod, which is laterally penetrated and rotatably connected to the inside of the feeding port, and a stirring rod for stirring is symmetrically arranged on the outside of the first shaft rod, and the end of the first shaft rod is correspondingly transmitted to the second shaft rod rotatably connected to the middle of the inoculation tank through a transmission mechanism; A buffer plate, the buffer plate is rotatably connected to the inner top of the feed port, and a limiting mechanism for buffering is installed at the bottom of the buffer plate; A connecting rod, wherein the connecting rod is fixedly connected to the outside of the second shaft rod at equal intervals, and the inner side of the end of the connecting rod is rotatably connected to a frame, and the outer side of the frame is provided with a limiting rod fixed to the outer side of the connecting rod by a first fixing rod; The bottom trough is connected to the bottom of the inoculation tank, a filter is arranged at the junction of the top of the bottom trough and the inoculation tank, and an outlet is arranged on the right side of the bottom trough.

[0009] Preferably, a feeding port for adding materials is provided on the top of the raw liquid tank, and a top cover is provided on the top of the feeding port. A partition is vertically fixedly installed inside the raw liquid tank, and the top of the partition is spaced apart from the bottom of the raw liquid tank, and the partition divides the left and right sides of the raw liquid tank into a mixing chamber and a reflux chamber.

[0010] Preferably, a connection port penetrating the raw liquid tank is provided at the bottom of the mixing chamber, and the outer side of the connection port is connected to the input end of the pump through a first connecting pipe, and the output end of the pump is connected to the top left side of the feed port through a second connecting pipe.

[0011] Preferably, a fourth connecting tube is connected to the outer side of the bottom of the reflux chamber, and a sealing tube is threadedly connected to the outer side of the end of the fourth connecting tube, a third connecting tube is connected to the left side of the bottom of the bottom groove, and the third connecting tube and the sealing tube are correspondingly threadedly connected, and the third connecting tube and the fourth connecting tube form a connecting structure through the sealing tube.

[0012] Preferably, the limiting mechanism comprises a support rod, a limiting block and an insertion rod, the support rod is fixedly connected to the bottom surface of the buffer plate, and the shape structure of the support rod is an arc structure, and the central axis of the arc structure coincides with the rotation central axis of the buffer plate; The end of the support rod passes through the side wall of the feed port, and a spring located between the buffer plate and the feed port is sleeved on the outer side of the top of the support rod, the outer side of the support rod is provided with slots at equal intervals, and a limit block located outside the feed port is provided on the outer side of the support rod, and an insertion rod is connected to the inner side of the limit block.

[0013] Preferably, the insertion rod forms a telescopic structure on the inner side of the limit block, and a groove is provided at the bottom of the limit block, a clamping plate is provided at the bottom of the insertion rod, and the insertion rod is connected to the groove by rotating the clamping plate, and the outer diameter of the end of the insertion rod is the same as the inner diameter of the clamping groove.

[0014] Preferably, a liquid outlet is provided on the left side of the inner part of the feed port, and the liquid outlet is correspondingly attached to the top end of the second connecting pipe, and a horizontal plate is provided below the liquid outlet, and the horizontal plate is an arc-shaped hollow structure; A flow divider plate is arranged below the transverse plate, and an arc-shaped depression is provided on the top of the flow divider plate. Through holes penetrating the flow divider plate are arranged at equal intervals at the bottom of the depression.

[0015] Preferably, horizontal bars are arranged at equal intervals on the inner side of the frame, and the rotation angle of the frame on the inner side of the connecting rod is limited by a limiting rod, the limiting rod is arranged to protrude toward the frame, and a scraper is connected to the outer side of the end of the connecting rod through a second fixed rod, and the outer side of the scraper is fitted with the inner wall of the inoculation tank.

[0016] Preferably, the transmission mechanism includes a transmission wheel and a connecting wheel, the transmission wheel is fixedly connected to the top end of the second shaft rod, the connecting wheel is fixedly connected to the end of the first shaft rod, transmission rods are opened at equal angles on the outside of the transmission wheel, and a transmission groove is fixedly connected to the outside of the connecting wheel, and the transmission rod and the transmission groove are correspondingly engaged.

[0017] The present invention also provides an inoculation method of the biological fermentation feed inoculation device based on any of the above technical solutions, and the inoculation method comprises the following steps: Step 1: inject the inoculation liquid raw material into the stock liquid tank through the feed port, drive the stirring rod to rotate by the first shaft to stir and mix the inoculation liquid material, and start the pump to inject the inoculation liquid in the stock liquid tank into the inoculation tank through the partition and the second connecting pipe through the feed port; Step 2: The feed raw materials to be inoculated are put into the inoculation tank through the feed inlet, and the feed raw materials can be buffered and discharged through the buffer plate on the top of the inner side of the feed inlet, and at the same time, the raw materials are prevented from flying out after entering; Step 3: The rotation of the first shaft drives the second shaft inside the inoculation tank to rotate at the same time, and then the second shaft drives the frame and the scraper to rotate inside the inoculation tank to stir the feed raw materials, and at the same time, the feed raw materials are fully contacted with the inoculation liquid for inoculation; Step 4: Through the continuous use of the pump, the liquid in the stock liquid tank enters the inoculation tank, and through the connection between the inoculation tank and the stock liquid tank, the inoculation liquid is circulated, increasing the contact between the inoculation liquid and the feed raw materials, thereby improving the inoculation efficiency; Step 5: After the inoculation is completed, the inoculation liquid is first discharged, and the frame is driven by the second shaft to continuously rotate to stir the feed raw materials, so that they are squeezed against each other, so that the inoculation liquid fully enters the feed raw materials, and at the same time, the excess inoculation liquid in the gaps of the feed raw materials is filtered out, so as to fully collect the inoculation liquid, and the feed raw materials can also be adjusted to the required moisture content for subsequent fermentation treatment.

[0018] The present invention also provides a method for preparing a biological fermentation feed, comprising the following preparation steps: Step 1: steam explosion the straw to obtain a first material; Step 2: Mixing the first material obtained in step 1 with auxiliary materials to obtain a second material; Step 3: using the bio-fermentation feed inoculation device described in any of the above technical solutions to inoculate the second material obtained in step 2, and inoculating the inoculation liquid into the second material to obtain the third material; Step 4: fermenting the third material obtained in step 3 to obtain biological fermentation feed.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The bio-fermentation feed inoculation device of the present invention is used for inoculation treatment, which is convenient for recycling of the inoculation liquid. The inoculation liquid flows and squeezes and stirs the feed raw materials at the same time, ensuring that the inoculation liquid fully enters the feed raw materials, thereby improving the inoculation quality. The bio-fermentation feed inoculation device of the present invention is used for feed inoculation, which can improve the material inoculation quality, ensure the inoculation quality, have a good inoculation effect, and can improve the inoculation efficiency.

[0020] The biological fermentation feed inoculation device of the present invention is provided with a stock liquid tank, a pump and a stirring rod. The stirring rod is driven to rotate inside the stock liquid tank by a first shaft rod, so as to drive the stirring rod to stir the inoculation liquid. At the same time, the inoculation liquid inside the stock liquid tank is conveniently transported to the inside of the inoculation tank by the pump, so as to facilitate mixing and use. Furthermore, a partition is fixed vertically inside the raw liquid tank, and the internal pressure of the raw liquid tank is reduced through continuous delivery by the pump. Through the principle of communicating vessels of liquid level balance, the internal inoculation liquid of the inoculation tank can quickly flow back to the interior of the raw liquid tank, which is convenient for circulation and use. At the same time, it speeds up the flow of liquid, increases the contact between the inoculation liquid and the feed raw materials, improves the inoculation quality and the inoculation efficiency.

[0021] The biological fermentation feed inoculation device of the present invention is provided with a buffer plate and a support rod, and the buffer plate is supported by the elastic action of a spring, so that after the raw material passes through the buffer plate and enters the interior of the inoculation tank, the buffer plate can automatically reset to prevent the raw material from flying out, and at the same time reduce the falling speed of the raw material to prevent the inoculation liquid from splashing out; Furthermore, a card slot is provided on the side of the support rod, and the movement of the buffer plate can be directly restricted by extending the insertion rod and engaging with the card slot, thereby fixing the position of the buffer plate for rapid material unloading and use, thereby improving the inoculation efficiency.

[0022] The biological fermentation feed inoculation device of the present invention is provided with a second shaft rod, a transmission wheel and a connecting wheel. Through the groove wheel mechanism formed between the transmission wheel and the connecting wheel, the second shaft rod can be rotated by the first shaft rod, and the second shaft rod can be rotated intermittently, so as to facilitate filtration after the frame is raised to a certain height.

[0023] The biological fermentation feed inoculation device of the present invention is provided with a frame, a limit rod and a scraper. The frame and the scraper are driven to rotate simultaneously by the rotation of the second shaft rod, and the frame can rotate within the limit range of the limit rod, so as to adjust the angle following the internal feed raw materials and avoid jamming. The raw materials can be squeezed by the angle change of the frame, and the scraper can be fitted with the inner wall of the inoculation tank to avoid adhesion between the raw materials and the inner wall.

[0024] In the method for preparing biological fermentation feed of the present invention, after the straw is subjected to steam explosion treatment, the fiber structure in the straw is exploded and loosened and partially degraded, the material texture is loose, the contact reaction area of ​​the material is increased, and in the process of material fermentation, it is conducive to the fermentation microorganism to perform in-depth and thorough degradation biotransformation on the material, which is conducive to improving the fermentation efficiency of the material, and can increase the content of soluble sugar in the straw, which is conducive to improving the quality of the prepared biological fermentation feed. In the process of fermentation treatment, the fermentation microorganisms in the inoculation liquid will grow and multiply in large quantities, metabolize and secrete various biologically active enzymes and metabolites, degrade polysaccharides and lignin through fermentation treatment, destroy the indigestible cellulose-hemicellulose-lignin structure in the straw cell wall, release digestible nutrients in the cell wall, degrade macromolecular substances in the material into small molecular substances that are easy to digest and absorb, and the palatability of the feed can be improved by fermenting the straw material using the method for preparing biological fermentation feed of the present invention, and the feed will produce fermentation acid fragrance, so that the feed has good appetizing and palatability, and the nutritional value and utilization rate of the straw are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front cross-sectional structural schematic diagram of a biological fermentation feed inoculation device of the present invention; Figure 2 It is a schematic diagram of the side cross-section structure of a biological fermentation feed inoculation device of the present invention; Figure 3 It is a schematic diagram of the top structure of a biological fermentation feed inoculation device of the present invention; Figure 4 It is a schematic diagram of the left side structure of an inoculation tank in a biological fermentation feed inoculation device of the present invention; Figure 5 For the present invention Figure 2 The enlarged structural diagram of the middle B part; Figure 6 It is a schematic diagram of the overall structure of an insertion rod in a biological fermentation feed inoculation device of the present invention; Figure 7 For the present invention Figure 2 The enlarged structural diagram of the middle C part; Figure 8 This is a schematic diagram of the overall structure of the end of a connecting rod in a biological fermentation feed inoculation device of the present invention; Fig. 9 For the present invention Figure 2 The enlarged structural diagram of the middle D part; Fig.10 For the present invention Figure 1 Schematic diagram of the enlarged structure of part A in the middle.

[0026] In the figure: 1, inoculation tank; 2, feed port; 3, stock liquid tank; 4, feed port; 5, first shaft; 6, stirring rod; 7, partition; 71, mixing chamber; 72, reflux chamber; 8, connection port; 9, first connecting pipe; 10, pump; 11, second connecting pipe; 12, buffer plate; 13, support rod; 14, spring; 15, slot; 16, limit block; 161, groove; 17, plug rod; 171, card plate; 18, liquid outlet; 19. Horizontal plate; 20. Diverter plate; 201. Through hole; 21. Second shaft rod; 22. Transmission wheel; 221. Transmission rod; 23. Connecting wheel; 231. Transmission groove; 24. Connecting rod; 25. Frame; 251. Horizontal bar; 26. Limiting rod; 261. First fixing rod; 27. Scraper; 271. Second fixing rod; 28. Bottom groove; 29. ​​Filter screen; 30. Third connecting pipe; 31. Fourth connecting pipe; 32. Sealing pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-10 , the present invention provides a technical solution: A biological fermentation feed inoculation device comprises: an inoculation tank 1, a feed port 2, a raw liquid tank 3, a feeding port 4, a first shaft rod 5, a stirring rod 6, a partition plate 7, a mixing chamber 71, a reflux chamber 72, a connecting port 8, a first connecting pipe 9, a pump 10, a second connecting pipe 11, a buffer plate 12, a support rod 13, a spring 14, a slot 15, a limit block 16, a groove 161, an insert rod 17, a card plate 171, a liquid outlet 18, a cross plate 19, a diverter plate 20, a second shaft rod 21, a transmission wheel 22, a transmission rod 221, a connecting wheel 23, a transmission groove 231, a connecting rod 24, a frame 25, a cross bar 251, a limit rod 26, a first fixed rod 261, a scraper 27, a second fixed rod 271, a bottom groove 28, a filter screen 29, a third connecting pipe 30, a fourth connecting pipe 31 and a sealing pipe 32.

[0029] The inoculation tank 1 and the feed port 2 are arranged in an integrated structure, the stock liquid tank 3 is fixedly connected to the left side of the inoculation tank 1, and a pump 10 is installed above the stock liquid tank 3 for liquid transportation, the first shaft rod 5 is horizontally penetrated and rotatably connected to the inside of the feed port 4, and the outer side of the first shaft rod 5 is symmetrically provided with a stirring rod 6 for stirring, and the end of the first shaft rod 5 is correspondingly transmitted with the second shaft rod 21 rotatably connected to the middle part of the inoculation tank 1 through a transmission mechanism, the buffer plate 12 is rotatably connected to the inner top of the feed port 2, and a limiting mechanism for buffering is installed at the bottom of the buffer plate 12, the connecting rod 24 is fixedly connected to the outer side of the second shaft rod 21 at equal intervals, and the inner side of the end of the connecting rod 24 is rotatably connected with a frame 25, and the outer side of the frame 25 is provided with a limiting rod 26 fixed to the outer side of the connecting rod 24 by a first fixing rod 261, the bottom groove 28 is connected and arranged at the bottom of the inoculation tank 1, and a filter screen 29 is arranged at the junction of the top of the bottom groove 28 and the inoculation tank 1, and an outlet is arranged on the right side of the bottom groove 28.

[0030] Among them, a feeding port 4 for adding materials is provided at the top of the raw liquid tank 3, and a top cover is provided at the top of the feeding port 4. A partition 7 is vertically fixedly installed inside the raw liquid tank 3. The top of the partition 7 is spaced apart from the bottom of the raw liquid tank 3, and the partition 7 divides the left and right sides of the raw liquid tank 3 into a mixing chamber 71 and a reflux chamber 72. A connecting port 8 that passes through the raw liquid tank 3 is provided at the bottom of the mixing chamber 71, and the outer side of the connecting port 8 is connected to the input end of the pump 10 through the first connecting pipe 9, and the output end of the pump 10 is connected to the top left side of the feed port 2 through the second connecting pipe 11. A fourth connecting pipe 31 is connected to the outer side of the bottom of the reflux chamber 72, and a sealing pipe 32 is threadedly connected to the outer side of the end of the fourth connecting pipe 31. A third connecting pipe 30 is connected to the left side of the bottom of the bottom groove 28, and the third connecting pipe 30 is correspondingly threadedly connected to the sealing pipe 32, and the third connecting pipe 30 and the fourth connecting pipe 31 form a connecting structure through the sealing pipe 32; In a specific application scenario, the mixing chamber 71 and the reflux chamber 72 are separated by the vertical setting of the partition 7, and the inoculation liquid inside the inoculation tank 1 can enter the reflux chamber 72 through the fourth connecting pipe 31 and the third connecting pipe 30. At the same time, through the joint sedimentation of the reflux chamber 72 and the bottom trough 28, the finely divided feed raw materials mixed therein can be settled at the bottom, so that the inoculation liquid can be circulated through the pump 10 for use.

[0031] The limiting mechanism includes a support rod 13, a limiting block 16 and an insert rod 17. The support rod 13 is fixedly connected to the bottom surface of the buffer plate 12, and the shape structure of the support rod 13 is an arc structure. The central axis of the arc structure coincides with the rotation central axis of the buffer plate 12. The end of the support rod 13 passes through the side wall of the feed port 2, and the top outer side of the support rod 13 is sleeved with a spring 14 located between the buffer plate 12 and the feed port 2. The outer side of the support rod 13 is provided with card slots at equal intervals. Slot 15, and the outer side of the support rod 13 is provided with a limit block 16 located on the outer side of the feed port 2, the inner side of the limit block 16 is connected with an insertion rod 17, the insertion rod 17 forms a telescopic structure on the inner side of the limit block 16, and the bottom of the limit block 16 is provided with a groove 161, the bottom of the insertion rod 17 is provided with a clamping plate 171, and the insertion rod 17 is rotatably connected with the groove 161 through the clamping plate 171, and the outer diameter of the end of the insertion rod 17 is the same as the inner diameter of the slot 15.

[0032] In a specific application scenario, the buffer plate 12 is supported by the elastic action of the spring 14. When the feed raw materials enter the feed port 2, the buffer plate 12 can buffer the feed raw materials. At the same time, the spring 14 allows the buffer plate 12 to automatically reset, which is convenient for preventing the raw materials from flying out or the inoculation liquid from splashing out. At the same time, a card slot 15 is provided at the bottom of the buffer plate 12, and the insertion rod 17 can be extended to engage with the card slot 15, thereby limiting the position of the buffer plate 12, which is convenient for rapid feeding and is beneficial to improving the inoculation efficiency.

[0033] Among them, a liquid outlet 18 is arranged on the left side inside the feed port 2, and the liquid outlet 18 corresponds to the top end of the second connecting tube 11, a horizontal plate 19 is arranged below the liquid outlet 18, and the horizontal plate 19 is an arc-shaped hollow structure, a diverter plate 20 is arranged below the horizontal plate 19, and an arc-shaped depression is opened on the top of the diverter plate 20, and through holes 201 penetrating the diverter plate 20 are arranged at equal intervals at the bottom of the depression.

[0034] In a specific application scenario, the inoculating liquid in the original liquid tank 3 is output to the feed port 2 through the pump 10, and at the same time, the inoculating liquid falls onto the surface of the transverse plate 19. The long strip structure of the transverse plate 19 facilitates its uniform falling. At the same time, part of the inoculating liquid falls into the inside of the diversion plate 20, and falls into the inside of the inoculation tank 1 through the through hole 201, which is conducive to the uniform distribution of the inoculating liquid.

[0035] Among them, horizontal bars 251 are arranged at equal intervals on the inner side of the frame 25, and the rotation angle of the frame 25 on the inner side of the connecting rod 24 is limited by the limiting rod 26, and the limiting rod 26 is protruding toward the frame 25. The outer side of the end of the connecting rod 24 is connected with a scraper 27 through a second fixed rod 271, and the outer side of the scraper 27 is fitted with the inner wall of the inoculation tank 1. When in use, the frame structure formed by the frame 25 and the horizontal bars 251 is convenient for filtration, and the scraper 27 is fitted with the inoculation tank 1, so that the raw materials attached to the inner wall of the inoculation tank 1 can be scraped off to ensure that the raw materials are fully in contact with the inoculation liquid, so that the inoculation liquid can be squeezed into the raw materials.

[0036] Among them, the transmission mechanism includes a transmission wheel 22 and a connecting wheel 23, the transmission wheel 22 is fixedly connected to the top end of the second shaft rod 21, the connecting wheel 23 is fixedly connected to the end of the first shaft rod 5, and a transmission rod 221 is opened at an equal angle on the outer side of the transmission wheel 22, and a transmission groove 231 is fixedly connected to the outer side of the connecting wheel 23, and the transmission rod 221 and the transmission groove 231 are correspondingly engaged. When in use, the first shaft rod 5 can be rotated to drive the connecting wheel 23 to rotate, and then the engagement between the transmission groove 231 and the transmission rod 221 can be used to drive the transmission wheel 22 to rotate, so as to drive the second shaft rod 21 to rotate.

[0037] The present invention also provides an inoculation method of the biological fermentation feed inoculation device based on any of the above technical solutions, and the inoculation method comprises the following steps: Before feed inoculation, the inoculation liquid raw material is injected into the interior of the stock liquid tank 3 through the feeding port 4, and the motor outside the stock liquid tank 3 is started to drive the first shaft 5 to rotate inside the stock liquid tank 3. The stirring rod 6 is driven to rotate through the first shaft 5 to mix and prepare the inoculation liquid.

[0038] By starting the pump 10 on the top of the stock liquid tank 3, the pump 10 absorbs the inoculation liquid inside the stock liquid tank 3 through the first connecting pipe 9, so that the inoculation liquid enters the interior of the feed port 2 through the second connecting pipe 11 via the liquid outlet 18. The inoculation liquid entering the interior of the feed port 2 will directly fall onto the surface of the transverse plate 19, and fall into the interior of the inoculation tank 1 through the arc structure of the transverse plate 19. The inoculation liquid is blocked by the transverse plate 19, so that the inoculation liquid can flow along the transverse plate 19, and then fall into the interior of the inoculation tank 1, so that the inoculation liquid falls evenly. At the same time, a diverter plate 20 is arranged below the transverse plate 19. Through the hollow structure of the transverse plate 19, the inoculation liquid can also partially enter the interior of the diverter plate 20 through the transverse plate 19, and is stored through the arc groove on the top of the diverter plate 20. At the same time, through holes 201 are evenly spaced through the bottom of the diverter plate 20, and the inoculation liquid falls evenly again through the through holes 201, so as to ensure the uniform flushing and use of the inoculation liquid.

[0039] At the same time, the connection between the bottom of the inoculation tank 1, the bottom trough 28, the third connecting pipe 30, the fourth connecting pipe 31 and the raw liquid tank 3 allows the liquid inside the inoculation tank 1 to automatically enter the interior of the raw liquid tank 3 through the third connecting pipe 30 and the fourth connecting pipe 31, wherein the interior of the raw liquid tank 3 is vertically designed with a partition 7, which divides the raw liquid tank 3 into a mixing chamber 71 and a reflux chamber 72 on the left and right, and the connecting port 8 is arranged at the bottom of the mixing chamber 71, so that the raw liquid inside the inoculation tank 1 automatically flows into the reflux chamber 72.

[0040] During the continuous use of the pump 10, due to the sealing of the top cover of the feeding port 4, the liquid in the raw liquid tank 3 is reduced, and the air space is increased, thereby reducing the internal pressure. The space volume of the reflux chamber 72 is relatively small. Under the action of the negative pressure inside the raw liquid tank 3, since the top of the inoculation tank 1 is open, under the action of atmospheric pressure, the liquid level of the raw liquid inside the reflux chamber 72 is increased, so that the raw liquid refluxes to the inside of the mixing chamber 71, and then is continuously transported by the pump 10 for liquid circulation.

[0041] When the solution inside the reflux chamber 72 rises due to the negative pressure, the impurities inside it will automatically settle, so that the impurity-free inoculation solution is automatically circulated to increase liquid flow, speed up the inoculation speed, and help improve the inoculation efficiency.

[0042] Then, the feed material is put into the inoculation tank 1 through the top opening of the feed port 2. When the feed material enters the feed port 2, it first contacts the buffer plate 12, and the buffer plate 12 is connected to the inner side of the feed port 2 through the support rod 13, and is supported by the spring 14 so that it can be used flexibly. When the feed material passes through the buffer plate 12 and enters the inoculation tank 1, the buffer plate 12 automatically resets due to the elastic action of the spring 14, which can prevent the feed material from flying out or the inoculation liquid from splashing out. At the same time, the bottom of the support rod 13 is provided with card slots 15 at equal intervals. When the operation mode is to add the feed material first, the buffer plate 12 can be pressed down. The buffer plate 12 is made to fit the side wall of the feed port 2 as closely as possible, and the insertion rod 17 is pushed up on the inner side of the limit block 16 so that the insertion rod 17 is engaged with the card slot 15, and then the insertion rod 17 is rotated so that the insertion rod 17 is engaged and limited between the card plate 171 and the groove 161 below the limit block 16, thereby relatively fixing the position of the buffer plate 12, and then quickly feeding the feed raw materials, which is beneficial to improving the inoculation efficiency.

[0043] While the motor is transmitting the power to the first shaft rod 5, a connecting wheel 23 is connected to the end of the first shaft rod 5, and the connecting wheel 23 is driven by the first shaft rod 5 to rotate at the same time, and the connecting wheel 23 is fitted with the transmission wheel 22. When the connecting wheel 23 rotates, the transmission groove 231 connected to the outside of the connecting wheel 23 rotates and engages with the transmission rod 221 on the outside of the transmission wheel 22, and the transmission wheel 22 is driven to rotate through the engagement, thereby driving the second shaft rod 21 to rotate.

[0044] When the second shaft rod 21 rotates, the connecting rod 24 connected to the outside of the second shaft rod 21 is driven to rotate, and the frame 25 and the scraper 27 are driven to rotate at the same time. Since the inner side of the frame 25 is evenly spaced with horizontal bars 251, a hollow flat plate structure is formed. During its rotation, the feed raw materials inside the inoculation tank 1 are pushed to turn the feed raw materials over. At the same time, the connecting rod 24 is rotationally connected to the frame 25, and its rotation range is limited by the limit rod 26 fixed on the outer side of the end of the connecting rod 24. Through the change of the angle of the frame 25, the feed raw materials are squeezed on the inner side of the inoculation tank 1. At the same time, through the fit between the scraper 27 and the inoculation tank 1, the feed raw materials attached to the side wall of the inoculation tank 1 can be scraped off, thereby ensuring the full mixing of the feed raw materials and the inoculation liquid, thereby ensuring the quality of the inoculation liquid squeezed into the feed raw materials.

[0045] After the inoculation is completed, the inoculation liquid is first discharged, and the frame 25 is driven by the second shaft rod 21 to continuously rotate to stir the feed raw materials, so that they are squeezed against each other, so that the inoculation liquid fully enters the feed raw materials, and at the same time, the frame 25 and the cross bar 251 are rotated at the end of the connecting rod 24, so that the frame 25 and the cross bar 251 rotate and squeeze the feed raw materials between the inner wall of the inoculation tank 1, so that the excess inoculation liquid in the gap of the feed raw materials is filtered out, so as to fully collect the inoculation liquid, and then the inoculation liquid content in the feed raw materials can be adjusted to reduce the feed raw materials. The moisture content of the feed raw materials can be adjusted to the required moisture content for subsequent fermentation treatment.

[0046] The present invention also provides a method for preparing a biological fermentation feed, comprising the following preparation steps: Step 1: steam explosion the straw to obtain a first material; The straw can be a mixture of any one or more of corn straw, rice straw and wheat straw in any proportion; before the steam explosion treatment, the straw can be crushed as needed to the required specifications.

[0047] Step 2: Mixing the first material obtained in step 1 with auxiliary materials to obtain a second material; In step 2 of the present invention, the first material is the main material. The first material as the main material can be mixed with auxiliary materials according to the required material ratio as needed, and the second material can be obtained after the materials are evenly mixed.

[0048] The auxiliary material can be selected appropriately according to the needs of subsequent fermentation and / or the needs of preparing feed products with different performance targets. For example, the auxiliary material can be a mixture of any one or more of other types of straw (different types of straw from the straw used to prepare the first material), corn flour, bran, bean pod powder (such as soybean pod powder), bean dregs, urea, ammonium sulfate, ammonium oxalate, ammonium chloride, and molasses in any proportion.

[0049] Step 3: using the bio-fermentation feed inoculation device described in any of the above technical solutions to inoculate the second material obtained in step 2, and inoculating the inoculation liquid into the second material to obtain the third material; The inoculation liquid is a microbial liquid, for example, a mixture of any one or more of a Bacillus liquid, a lactic acid bacteria liquid, and a yeast liquid in any proportion; or, the inoculation liquid is a mixture of a microbial liquid and a biological enzyme liquid.

[0050] The second material obtained in step 2 is used as the feed raw material to be inoculated, and the inoculation liquid is introduced into the feed raw material to be inoculated, so as to complete the inoculation treatment of the feed raw material and obtain the third material to be fermented.

[0051] Step 4: fermenting the third material obtained in step 3 to obtain biological fermentation feed.

[0052] For example, the third material obtained in step three can be put into a packaging bag through a compressor, compacted and sealed, and subjected to anaerobic fermentation treatment, and biological fermentation feed can be obtained after anaerobic fermentation treatment.

[0053] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. In addition, the directional terms such as up, down, left, right, front, and back in the text only represent their relative positions rather than absolute positions.

[0054] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A biological fermentation feed inoculation device, comprising: An inoculation tank (1), a feed port (2) connected to the top of the inoculation tank (1) for feeding, and a stock liquid tank (3) for storing inoculation liquid, wherein the inoculation tank (1) and the feed port (2) are arranged in an integrated structure, the stock liquid tank (3) is fixedly connected to the left side of the inoculation tank (1), and a pump (10) is installed above the stock liquid tank (3) for liquid transportation; It is characterized by further comprising: A first shaft (5), the first shaft (5) extending transversely through the inside of the feeding port (4) and being rotatably connected thereto, a stirring rod (6) for stirring being symmetrically arranged on the outside of the first shaft (5), the end of the first shaft (5) being correspondingly transmitted to a second shaft (21) rotatably connected to the middle of the inoculation tank (1) via a transmission mechanism; A buffer plate (12), the buffer plate (12) being rotatably connected to the inner top of the feed inlet (2), and a limiting mechanism for buffering being installed at the bottom of the buffer plate (12); Connecting rods (24), the connecting rods (24) being fixedly connected to the outside of the second shaft rod (21) at equal intervals, the inner side of the end of the connecting rod (24) being rotatably connected to a frame (25), and the outer side of the frame (25) being provided with a limiting rod (26) fixed to the outside of the connecting rod (24) via a first fixing rod (261); A bottom trough (28) is provided in communication with the bottom of the inoculation tank (1), a filter screen (29) is provided at the top of the bottom trough (28) where it connects with the inoculation tank (1), and an outlet is provided on the right side of the bottom trough (28).

2. A biological fermentation feed inoculation device according to claim 1, characterized in that: The top of the raw liquid tank (3) is provided with a feeding port (4) for adding materials, and the top of the feeding port (4) is provided with a top cover. A partition (7) is vertically fixedly installed inside the raw liquid tank (3), and a space is arranged between the top of the partition (7) and the bottom of the raw liquid tank (3). The partition (7) divides the left and right sides of the raw liquid tank (3) into a mixing chamber (71) and a reflux chamber (72).

3. A biological fermentation feed inoculation device according to claim 2, characterized in that: A connection port (8) penetrating the raw liquid tank (3) is provided at the bottom of the mixing chamber (71); the outer side of the connection port (8) is connected to the input end of the pump (10) via a first connection pipe (9); and the output end of the pump (10) is connected to the top left side of the feed port (2) via a second connection pipe (11).

4. A biological fermentation feed inoculation device according to claim 2, characterized in that: The outer side of the bottom of the reflux chamber (72) is connected to a fourth connecting pipe (31), the outer side of the end of the fourth connecting pipe (31) is threadedly connected to a sealing pipe (32), the left side of the bottom of the bottom groove (28) is connected to a third connecting pipe (30), the third connecting pipe (30) and the sealing pipe (32) are correspondingly threadedly connected, and the third connecting pipe (30) and the fourth connecting pipe (31) form a communication structure through the sealing pipe (32).

5. The biological fermentation feed inoculation device according to claim 1, characterized in that: The limiting mechanism comprises a support rod (13), a limiting block (16) and an insertion rod (17); the support rod (13) is fixedly connected to the bottom surface of the buffer plate (12); the support rod (13) is in the shape of an arc structure, and the central axis of the arc structure coincides with the rotational central axis of the buffer plate (12); The end of the support rod (13) passes through the side wall of the feed port (2); a spring (14) is sleeved on the outer side of the top of the support rod (13) and is located between the buffer plate (12) and the feed port (2); the outer side of the support rod (13) is provided with slots (15) at equal intervals; a limit block (16) is provided on the outer side of the support rod (13) and is located on the outer side of the feed port (2); and an insertion rod (17) is connected to the inner side of the limit block (16).

6. A biological fermentation feed inoculation device according to claim 5, characterized in that: The insert rod (17) forms a telescopic structure on the inner side of the limit block (16); a groove (161) is provided at the bottom of the limit block (16); a clamping plate (171) is provided at the bottom of the insert rod (17); the insert rod (17) is rotatably engaged with the groove (161) via the clamping plate (171); and the outer diameter of the end of the insert rod (17) is the same as the inner diameter of the clamping slot (15).

7. A biological fermentation feed inoculation device according to claim 3, characterized in that: A liquid outlet (18) is provided on the left side of the inside of the feed port (2), the liquid outlet (18) is correspondingly attached to the top end of the second connecting pipe (11), and a horizontal plate (19) is provided below the liquid outlet (18), the horizontal plate (19) being an arc-shaped hollow structure; A flow divider plate (20) is arranged below the transverse plate (19), an arc-shaped depression is provided on the top of the flow divider plate (20), and through holes (201) penetrating the flow divider plate (20) are arranged at equal intervals at the bottom of the depression.

8. The biological fermentation feed inoculation device according to claim 1, characterized in that: The inner side of the frame (25) is provided with horizontal bars (251) at equal intervals. The rotation angle of the frame (25) on the inner side of the connecting rod (24) is limited by a limiting rod (26). The limiting rod (26) is provided to protrude toward the frame (25). The outer side of the end of the connecting rod (24) is connected to a scraper (27) via a second fixing rod (271). The outer side of the scraper (27) is fitted with the inner wall of the inoculation tank (1).

9. The biological fermentation feed inoculation device according to claim 1, characterized in that: The transmission mechanism comprises a transmission wheel (22) and a connecting wheel (23); the transmission wheel (22) is fixedly connected to the top end of the second shaft (21); the connecting wheel (23) is fixedly connected to the end of the first shaft (5); transmission rods (221) are provided at equal angles on the outside of the transmission wheel (22); a transmission groove (231) is fixedly connected to the outside of the connecting wheel (23); the transmission rod (221) and the transmission groove (231) are correspondingly engaged.

10. A method for preparing biological fermentation feed, characterized in that: The method comprises the following preparation steps: Step 1: steam explosion the straw to obtain a first material; Step 2: Mixing the first material obtained in step 1 with auxiliary materials to obtain a second material; Step 3: using the bio-fermentation feed inoculation device according to any one of claims 1 to 9 to inoculate the second material obtained in step 2, and inoculating the inoculation liquid into the second material to obtain a third material; Step 4: fermenting the third material obtained in step 3 to obtain biological fermentation feed.

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