Method and system for manufacturing bio-organic fertilizer by utilizing mid-infrared rays

Abstract

The invention relates to the technical field of mid-infrared treatment of waste distiller's grains of white spirit, in particular to a method for preparing a bio-organic fertilizer by using mid-infrared rays, which comprises the following steps: S1, pretreatment of waste distiller's grains: drying waste distiller's grains of white spirit, controlling the water content, and then crushing the dried waste distiller's grains; s2, blending fermentation raw materials: mixing the crushed waste vinasse with water to form a fermentation substrate; s3, inoculating a composite strain: adding the composite strain according to 5% of the mass of the fermentation substrate; s4, mid-infrared ray assisted aerobic fermentation: mid-infrared ray irradiation penetrates through the whole aerobic fermentation process, and through the heat effect and biological effect of mid-infrared rays, metabolic activity of microorganisms in a fermentation substrate is accelerated, and decomposition of organic matters is promoted; s5, anaerobic fermentation; s6, micro-aerobic fermentation: performing micro-aerobic fermentation at normal temperature to finally obtain the bio-organic fertilizer. The problem that agricultural ecological planting fertilizer is insufficient can be solved, and odor can be effectively prevented from being generated in the fermentation process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of white spirit discarded bran processing, and particularly relates to a method and system for manufacturing bio-organic fertilizer by using medium infrared rays. BACKGROUND

[0002] White spirit discarded bran, which is the solid residue left after the solid-state fermentation and distillation of grains such as rice and sorghum to produce liquor, is prone to mold and rot due to high residual organic acid ester content, high acidity and high moisture content, and directly discarding it will cause serious pollution to the ecological environment. In fact, discarded bran contains substances such as starch, protein, cellulose, amino acids, minerals and fermentation products, and is an ecological resource with development potential.

[0003] At present, common utilization methods of white spirit discarded bran, such as incineration, use as a feed additive, power generation, and hydrogen production, have not fully tapped the value of its organic matter content. Incineration only converts discarded bran into gas emissions, wasting resources and producing harmful gases; using it as a feed additive only utilizes part of the nutrients, and there is a risk of harmful components threatening the health of farmed animals; power generation focuses on energy conversion, and a large amount of organic matter is not effectively utilized; and the technology for producing hydrogen is complex, costly and has a low conversion rate, making it difficult to promote on a large scale.

[0004] In the field of organic fertilizer preparation, traditional composting fermentation is completed by adjusting the humidity of organic substrates, creating an anaerobic environment, and relying on natural bacteria to slowly decompose substances. This method has many drawbacks. On the one hand, the fermentation period is as long as 3 months or more, the efficiency is extremely low, and it is difficult to meet the demand for fertilizer in modern agriculture; on the other hand, a large amount of offensive odors are produced during the fermentation process, seriously affecting the surrounding environment. At the same time, due to the lack of means to precisely control the fermentation parameters, the quality of the finished organic fertilizer is unstable, and it cannot provide reliable fertilizer support for agricultural ecological planting.

[0005] Therefore, a new method and supporting system that can fully utilize white spirit discarded bran resources, solve the problem of insufficient fertilizer for agricultural ecological planting, and effectively avoid the production of offensive odors during the fermentation process are developed to promote the resource utilization of white spirit waste and the green and sustainable development of agriculture. SUMMARY

[0006] The purpose of the present application is to provide a method and system for manufacturing bio-organic fertilizer by using medium infrared rays, which can not only solve the problem of insufficient fertilizer for agricultural ecological planting, but also effectively avoid the production of offensive odors during the fermentation process.

[0007] The technical implementation scheme of the present application is as follows:

[0008] A method for manufacturing bio-organic fertilizer by using medium infrared rays, comprising the following steps:

[0009] S1, pretreatment of distiller's grains: dry the distiller's grains, control the moisture content, then crush the dried distiller's grains;

[0010] S2, preparation of fermentation raw materials: mix the crushed distiller's grains with water to form a fermentation substrate;

[0011] S3, inoculation of complex strains: add complex strains composed of photosynthetic bacteria, actinomycetes, spore bacteria and yeast to the fermentation substrate at a rate of 5% by weight;

[0012] S4, mid-infrared assisted aerobic fermentation: during aerobic fermentation, use mid-infrared rays with a wavelength of 4-25 μm and an irradiation intensity of 10-30 W / m² to irradiate the fermentation substrate, while controlling the aerobic fermentation temperature at 55-75°C. During this process, a pile-turning machine that can move forward and backward and up and down on a guide rail is used for pile-turning operations, with a pile-turning frequency of 1-2 times per day and a fermentation time of 2-7 days;

[0013] S5, anaerobic fermentation: after aerobic fermentation, control the anaerobic fermentation conditions and then perform anaerobic fermentation;

[0014] S6, micro-aerobic fermentation: after anaerobic fermentation, perform micro-aerobic fermentation at room temperature to obtain a biological organic fertilizer.

[0015] Optionally, in the S1 step, the moisture content during the drying process of the distiller's grains is controlled at 16-19%, and the distiller's grains are crushed to a particle size of 50-100 mesh; in the S2 step, the moisture content is adjusted to 58-65% during the mixing of the distiller's grains with water; in the S4 step, the mid-infrared irradiation is applied throughout the entire aerobic fermentation process, and through the thermal and biological effects of mid-infrared rays, the metabolic activity of microorganisms in the fermentation substrate is accelerated, and the decomposition of organic matter is promoted.

[0016] Optionally, in the S4 step, the pile-turning machine is used in conjunction with the mid-infrared irradiation to uniformly heat the fermentation substrate, further improving the fermentation efficiency and uniformity.

[0017] Optionally, in the S3 step, the mass ratio of photosynthetic bacteria, actinomycetes, spore bacteria and yeast in the complex strains is 1:1:1:1.

[0018] Optionally, in the S5 step, the anaerobic fermentation temperature is 25-45°C, and the fermentation time is 5-10 days.

[0019] Optionally, the machine body is connected with the guide strip on the trough through the walking wheel at the bottom, and the upper part of the machine body is provided with the first rotating shaft and the second rotating shaft, the first sprocket on the first rotating shaft is connected with the fourth rotating shaft on the first connecting support through the first transmission chain, and the side stirring frame is arranged on the fourth rotating shaft.

[0020] Optionally, the walking wheel is arranged in the connecting seat of the machine body, the fifth rotating shaft in the connecting seat is connected with the seventh sprocket on the output shaft of the second driving motor through the fourth sprocket and the fourth chain, the inside of the machine body is provided with the first driving motor, and the output shaft of the first driving motor is connected with the third sprocket on the upper part of the first rotating shaft through the second transmission chain; the second rotating shaft is arranged in the middle part of the two first connecting supports, and the auxiliary sprocket is arranged on the second rotating shaft and connected with the first transmission chain.

[0021] A white spirit discarded bran pretreatment system, comprising a first fixed support, a drying device, a crushing device and a screening device, characterized in that the drying device is arranged on the first fixed support for drying treatment of white spirit discarded bran; the crushing device is arranged on the first fixed support, and the crushing device is located at one end of the drying device for crushing of the dried white spirit discarded bran; the screening device is arranged on the first fixed support for screening treatment of the crushed white spirit discarded bran; the drying device comprises a second fixed support, a drying box, a rotating drum, a heating box, an auxiliary receiving group, a third driving motor and a gear ring, the drying box is arranged on the first fixed support through the second fixed support, a rotating drum is arranged in the through hole of the drying box, a gear ring is arranged on the outer wall of the rotating drum, and the gear ring is meshed and connected with the driving gear on the third driving motor; the rotating drum is a cylindrical cavity structure with two open ends, and a spiral guide plate is arranged on the inner wall of the rotating drum, the rotating drum is connected with the drying box through the auxiliary receiving group at the bottom; a gas guide box is arranged in the inside of the drying box, and the gas guide box is arranged on the outer wall of the rotating drum in a wrapping manner, the gas inlet of the gas guide box is connected with the heater through a gas guide pipeline; one end of the drying box is provided with a third fixed support, a loading plate and a feeding hopper are arranged on the upper part of the third fixed support, and the bottom of the feeding hopper is connected with one end of the rotating drum through a discharging pipeline.

[0022] Optionally, the crushing device comprises a crushing box, a first crushing roller, a second crushing roller, a motor support, a fourth driving motor and a first gear and a second gear, the crushing box is a rectangular cavity structure with an upper opening, and the inside of the crushing box is provided with the first crushing roller and the second crushing roller, one end of the first crushing roller and the second crushing roller is respectively provided with the first gear and the second gear, and the first gear and the second gear are connected in meshing connection; one end of the crushing box is provided with the motor support, and the fourth driving motor is arranged on the upper part of the motor support, and the output shaft of the fourth driving motor is connected with the first crushing roller through a shaft coupling; the crushing box is connected with the first fixed support through a fourth fixed support, and the bottom of the crushing box is provided with a discharge port, and the lower part of the discharge port is provided with a first conveying belt; one end of the first conveying belt is connected with the screening device through a discharging chute and a lifting support.

[0023] Optionally, the screening device comprises a fifth fixed support, a vibration table, a fixed groove and a vibration motor, the fifth fixed support is fixedly arranged on the first fixed support, and the upper part of the fifth fixed support is connected with the vibration table through an extension rod, and the outer wall of the extension rod is provided with a pressure spring; the upper part of the vibration table is provided with a fixed groove, and the inside of the fixed groove is provided with a first screening groove and a second screening groove, a plurality of first screening holes and a first discharge pipeline are arranged on the first screening groove; a plurality of second screening holes and a second discharge pipeline are arranged on the second screening groove;

[0024] The upper part of the fifth fixed support is provided with the vibration motor, and the vibration motor is connected with the bottom of the vibration table; the upper part of the first fixed support is provided with a first feeding groove, and the inside of the first feeding groove is provided with a second conveying belt and a third conveying belt; the inside of the fifth fixed support is provided with a second feeding groove, and the inside of the second feeding groove is provided with a fourth conveying belt; the inside of the lifting support is provided with the fourth conveying belt, and the upper part of the fourth conveying belt is provided with a plurality of baffles, and one end of the lifting support is provided with a fifth driving motor; the upper part of the crushing box is provided with a sealing cover.

[0025] The present application has the following advantages:

[0026] 1. In the present application, by introducing specific wavelength of mid-infrared rays, the activity of microorganisms is stimulated and the metabolic pathway is optimized, which significantly improves the decomposition efficiency of organic substrates in discarded distiller's grains, greatly shortens the traditional long fermentation period, and rapidly converts macromolecular substances such as residual starch, protein and cellulose into small molecular nutrients such as amino acids, humus and fatty acids which can be easily absorbed by crops, and inorganic salts, thereby preparing high-quality bio-organic fertilizer with high organic matter content and strong nutrient availability, and providing efficient fertilizer support for ecological agriculture.

[0027] 2. The present invention, by constructing an aerobic fermentation environment and combining it with mid-infrared energy empowerment, suppresses the generation of odor from the source, optimizes the decomposition path of organic matter under aerobic conditions, and avoids the generation of malodorous gases such as ammonia and hydrogen sulfide; mid-infrared accelerates substance conversion and reduces the accumulation of odor source precursor substances; combined with the synergistic effect of high-concentration composite bacteria, forms an efficient deodorization mechanism, ensures that no irritating odor is released during the fermentation process, significantly improves the production environment, solves the odor pollution problem of traditional composting, and achieves the dual benefits of waste resource utilization and environmental protection.

[0028] 3. The present invention is designed with a compost turning machine structure, which can stir the material inside the trough through the second stirring frame on the machine body, and is also designed with two side stirring frames, which can stir the material on the side wall of the trough body. This design can completely stir the material in the trough, avoiding the traditional single stirring method, in which the material near the inner wall of the trough is not stirred properly.

[0029] 4. This invention designs a white wine spent grain pretreatment system. Targeted at the processing needs of white wine spent grains, it integrates three core functional modules: drying, crushing, and screening. The drying, crushing, and screening equipment are centrally mounted on a first fixed bracket, achieving an integrated spent grain processing process through a modular integrated design. This system sequentially completes water evaporation, particle size refinement, and particle size classification of the spent grains. The various devices are compactly physically connected via a bracket structure, saving installation space while ensuring process stability through the bracket's rigid support, ultimately achieving efficient and automated white wine spent grain pretreatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a process flow chart of the present invention.

[0031] Figure 2 It is a structural schematic diagram of the compost turning machine of the present invention.

[0032] Figure 3 Schematic diagram of the structure of the second stirring frame of the present invention.

[0033] Figure 4 It is the right side view of the compost turning machine of the present invention.

[0034] Figure 5 It is a structural schematic diagram of the side stirring frame part of the present invention.

[0035] Figure 6 Schematic diagram of the structure of the pretreatment system of the present invention.

[0036] Figure 7 It is the front view of the pretreatment system of the present invention.

[0037] Figure 8 It is a structural schematic diagram of the drying device part of the present invention.

[0038] Figure 9 The explosion schematic diagram of the drying device of the present application.

[0039] Figure 10 The structure schematic diagram of the first feeding groove part of the present application.

[0040] Figure 11 The structure schematic diagram of the crushing device part of the present application.

[0041] Figure 12 The structure schematic diagram of the screening device part of the present application.

[0042] Figure 13 The explosion schematic diagram of the screening device of the present application.

[0043] The meaning of the reference signs in the figure: 1-groove, 2-guide strip, 3-turning machine, 301-machine body, 302-traveling wheel, 303-second connecting support, 304-seventh sprocket, 305-fourth sprocket, 306-fourth chain, 308-second drive motor, 309-first rotating shaft, 310-first drive motor, 311-third sprocket, 312-second transmission chain, 313-first sprocket, 314-first transmission chain, 315-assistant sprocket, 316-second rotating shaft, 317-first connecting support, 320-lateral agitating frame, 322-third chain, 4-first fixed support, 5-drying device, 501-second fixed support, 502-drying box, 503-rotary drum, 504-third fixed support, 505-plate carrier, 506-feeding hopper, 507-through hole, 508-heating box, 509-third drive motor, 510-driving gear, 511-gear ring, 6-crushing device, 601-crushing box, 602-first crushing roller, 603-second crushing roller, 604-motor support, 605-fourth drive motor, 606-first gear, 7-screening device, 701-fifth fixed support, 702-telescopic rod, 703-pressure spring, 704-vibrating table, 705-vibrating motor, 706-fixed groove, 707-second screening groove, 708-second discharging pipeline, 709-first screening groove, 710-first discharging pipeline, 8-assistant receiving group, 9-discharging groove, 10-lifting support, 11-fourth conveying belt, 12-fifth drive motor, 13-first feeding groove, 14-second conveying belt, 15-third conveying belt, 16-fourth conveying belt, 17-first conveying belt. DETAILED DESCRIPTION

[0044] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear herein are based solely on the accompanying drawings and are not intended to limit the present invention.

[0045] like Figures 1-5 As shown, a method for producing bio-organic fertilizer using mid-infrared rays comprises the following steps: S1, pre-treating spent grains: drying the spent grains of liquor to control the moisture content, and then crushing the dried spent grains; S2, preparing fermentation raw materials: mixing the crushed spent grains with water to form a fermentation substrate; S3, inoculating composite bacteria: adding a composite bacteria composed of photosynthetic bacteria, actinomycetes, spore-forming bacteria and yeast according to 5% of the mass of the fermentation substrate; S4, mid-infrared-assisted aerobic fermentation: during the aerobic fermentation process, mid-infrared rays with a wavelength of 4μm-25μm and an irradiation intensity of 10W / m²-30W / m² are used to irradiate the fermentation substrate, and the aerobic fermentation temperature is controlled at 55℃-75℃. During this period, the compost is turned by a compost turning machine that can move back and forth and up and down on a guide rail, and the turning frequency is 1-2 times a day. The fermentation time is 2-7 days; S5, anaerobic fermentation: after the aerobic fermentation is completed, the anaerobic fermentation conditions are controlled and anaerobic fermentation is carried out again; S6, microaerobic fermentation: after the anaerobic fermentation is completed, microaerobic fermentation is carried out at room temperature to finally obtain biological organic fertilizer.

[0046] In the step S1, during the drying process of the liquor spent lees, the moisture content is controlled at 18%, and the spent lees are crushed to a particle size of 50-100 mesh; in the step S2, during the mixing of the spent lees with water, the moisture content is adjusted to 62%; in the step S4, during the irradiation of the fermentation substrate, infrared rays with a wavelength of 4μm-25μm are used; during the aerobic fermentation process, the temperature is 65°C and the fermentation time is 4 days; in the step S4, mid-infrared irradiation runs through the entire aerobic fermentation process, and the thermal effect and biological effect of the mid-infrared rays accelerate the metabolic activity of microorganisms in the fermentation substrate and promote the decomposition of organic matter; In the step, the compost turning machine cooperates with mid-infrared irradiation to uniformly heat the fermentation substrate, further improving the fermentation efficiency and uniformity. The wavelength, irradiation intensity, aerobic fermentation temperature, compost turning frequency and other parameters of the mid-infrared ray work together to act on the fermentation process, thereby realizing the efficient preparation of biological organic fertilizer. In the step S3, the mass ratio of photosynthetic bacteria, actinomycetes, spore bacteria and yeast in the composite bacteria is 1:1:1:1; in the step S5, the anaerobic fermentation temperature is 35°C and the fermentation time is 7 days.

[0047] It should be noted that, unlike the anaerobic fermentation of traditional composting, this scheme employs aerobic fermentation, providing microorganisms with ample oxygen and shifting their metabolic pathways toward thorough oxidative decomposition. Under aerobic conditions, dominant bacteria such as thermophiles decompose nitrogenous organic matter in the waste into nitrates rather than ammonia, and convert sulfur-containing substances into sulfates rather than hydrogen sulfide, thus avoiding the generation of typical malodorous gases at the source. During the high-temperature aerobic fermentation process, microorganisms decompose organic matter into CO2 and H2O through aerobic respiration. The odor is primarily odorless gases such as carbon dioxide and nitrogen, rather than the irritating gases found in anaerobic environments. Furthermore, the high temperatures generated by aerobic fermentation effectively inhibit the activity of odor-producing microorganisms, further reducing odor generation. This environment not only accelerates the degradation of organic matter but also, through thermodynamic effects, reduces the probability of volatilization of volatile malodorous substances.

[0048] It's important to further clarify that in this scheme, 25μm-wavelength mid-infrared light resonates with organic macromolecules within the microorganisms, significantly improving the efficiency of enzymatic reactions. This energy input accelerates the microbial breakdown of starch, cellulose, and other substances in the spent grains, shortening the residence time of organic matter in the fermentation system and reducing the accumulation of intermediate products. From a metabolic perspective, the odorous pathway of amino acids in traditional anaerobic fermentation, which produces amines such as putrescine and cadaverine through decarboxylation, is reshaped by mid-infrared light into a benign conversion chain from amino acids to bacterial proteins to humus. This scheme accelerates the decomposition of organic matter, reducing the peak concentration of volatile odor precursors and ensuring that odorous substances are completely decomposed by microorganisms before they accumulate.

[0049] It's important to further clarify that the synergistic effects of aerobic fermentation, mid-infrared energization, and symbiotic microbial communities create deodorization performance that surpasses that of any single technology alone. Mid-infrared rays enhance the microbial utilization of oxygen, making the oxidative decomposition process more thorough during aerobic fermentation. Efficient organic matter decomposition, in turn, provides ample energy substrate for the symbiotic microbial community, strengthening its inhibitory effect on odor-producing bacteria. This cyclical gain effect significantly shortens the fermentation cycle of traditional composting, which typically lasts over three months, reducing the window for odorous substances to form. Furthermore, the high temperatures generated during fermentation, combined with the thermal effects of mid-infrared rays, not only accelerate water evaporation but also disrupt the cell structure of odor-producing microorganisms, achieving a dual deodorization effect of biodegradation and thermal inactivation.

[0050] The following table compares the new and old methods:

[0051] Comparative item New method General method 1 Fermentation efficiency 18~24 days 90 days or more 2 Odor Below the human sensory threshold High concentration 3 Fermentation strain Photosynthetic bacteria + actinomycetes + spore bacteria + yeast Natural strain 4 Strain concentration Added at 5%, high concentration Low 5 Fermentation temperature Normal temperature to 75℃ Normal temperature to 65℃ 6 Oxygen fermentation temperature rising speed Fermentation temperature can rise to above 50℃ in 12~18 hours At least 96 hours are needed 7 Finished product water content ≤30% Uncertain 8 total nutrients N + P2O5+ K2O ≥4% Uncertain 9 Organic matter content ≥40% Uncertain 10 Egg-killing rate Uncertain 11 pH value 5.0~8.5 Uncertain

[0052] From the above table, we can analyze that: compared with the general fertilizer production method, this technical solution has significant advantages: fermentation efficiency is increased by more than 3 times, and the production cycle is greatly shortened; odor emissions are lower than the human sensory threshold, solving the odor pollution problem of traditional fertilizer production; the use of composite functional bacteria (photosynthetic bacteria + actinomycetes, etc.) and a high concentration of 5% added far exceeds the decomposition efficiency of natural bacteria, and the degradation of organic substrates is more thorough; the fermentation temperature rises more than 5 times faster, quickly entering the high-temperature fermentation stage, combined with a maximum fermentation temperature of 75°C, the killing of insect eggs is more thorough; the finished product has clear and controllable indicators such as moisture content ≤30%, total nutrients ≥4%, and organic matter ≥40%, and the pH is stable, which solves the problem of uncertain quality of finished products of the general method, realizes efficient, clean, and high-quality fertilizer production, and promotes the upgrading of waste resource utilization.

[0053] The following table shows the relevant parameters of the new method

[0054] Item Control parameter 1 Loss of grain drying Water content is controlled at 16~19% 2 Loss of grain crushing Particle size 50~100 mesh 3 Oxygen fermentation humidity Water content 58~65% 4 Finished product humidity Water content ≤30% 5 Oxygen fermentation temperature range 55~75℃ 6 Anaerobic temperature range 25~45℃ 7 Micro-aerobic temperature Normal temperature 8 Oxygen fermentation time 2~7d 9 Anaerobic fermentation time 5~10d 10 Micro-aerobic fermentation time 12~15d

[0055] like Figures 1-5 As shown, the compost turning machine 3 includes a body 301, a first rotating shaft 309, a second rotating shaft 316, a third rotating shaft, a first connecting bracket 317, a side stirring frame 320 and a second stirring frame 304. The body 301 is connected to the guide bar 2 on the trough 1 through the walking wheel 302 at the bottom, and the first rotating shaft 309 and the second rotating shaft 316 are provided on the upper part of the body 301. The first sprocket 313 on the first rotating shaft 309 is connected to the fourth rotating shaft on the first connecting bracket 317 through the first transmission chain 314, and the side stirring frame 320 is provided on the fourth rotating shaft; the second connecting bracket 303 is provided at the bottom of the body 301, and the second stirring frame 304 is provided on the third rotating shaft inside the second connecting bracket 303. The fifth sprocket on the third rotating shaft is connected to the sixth sprocket on the first rotating shaft 309 through the third chain 322 to form a transmission structure.

[0056] It should be noted that the machine body 301 is connected to the guide bar 2 on the material trough 1 through the running wheel 302 at the bottom, and the fifth rotating shaft on the running wheel 302 is connected to the second drive motor 308 through the fourth sprocket 305 and the fourth chain 306. The entire machine body 301 can be moved under the drive of the second drive motor 308, thereby pushing the side stirring frame 320 and the second stirring frame 304 forward.

[0057] It should be further explained that a second connecting bracket 303 is provided at the lower part of the body 301, and a second stirring frame 304 is provided on the second connecting bracket 303, which is connected to the first rotating shaft 309 through a third chain 322, and can be driven based on the first rotating shaft 309, thereby realizing the driving of the entire second stirring frame 304, and then stirring the material.

[0058] likeFigures 1-5 As shown, the walking wheel 302 is arranged in the connecting seat of the body 301, and the fifth rotating shaft in the connecting seat is connected with the seventh sprocket 304 on the output shaft of the second driving motor 308 through the fourth sprocket 305 and the fourth chain 306; the first driving motor 310 is arranged in the interior of the body 301, and the output shaft of the first driving motor 310 is connected with the third sprocket 311 on the upper portion of the first rotating shaft 309 through the second transmission chain 312; the second rotating shaft 316 is arranged in the middle portion of the two first connecting supports 317, and the auxiliary sprocket 315 is arranged on the second rotating shaft 316, and the auxiliary sprocket 315 is connected with the first transmission chain 314.

[0059] It should be noted that the first connecting support 317 is arranged on the upper portion of the body 301, and the interior of the first connecting support 317 is arranged with the side stirring frame 320, and the side stirring frame 320 is connected with the fourth rotating shaft, wherein the fourth rotating shaft is connected with the first sprocket 313 on the first rotating shaft 309 through the first transmission chain 314, and the transmission is realized under the drive of the first rotating shaft 309, and the whole side stirring frame 320 is driven to realize the stirring of the material in the inner wall portion of the trough 1, and this arrangement can assist the second stirring frame 304 to work, and the material in the trough 1 is uniformly stirred.

[0060] As Figures 5-13As shown, a liquor discarded bran pretreatment system, including a first fixed support 4, drying device 5, crushing device 6 and screening device 7, the drying device 5 is arranged on the first fixed support 4 for drying treatment of liquor discarded bran; the crushing device 6 is arranged on the first fixed support 4, and the crushing device 6 is located at one end of the drying device 5, for crushing of the dried liquor discarded bran; the screening device 7 is arranged on the first fixed support 4, for screening treatment of the crushed liquor discarded bran; the drying device 5 includes a second fixed support 501, a drying box 502, a rotating drum 503, a heating box 508, an auxiliary receiving group 8, a third driving motor 509 and a gear ring 511, the drying box 502 is arranged on the first fixed support 4 through the second fixed support 501, and the through hole 507 of the drying box 502 is internally provided with the rotating drum 503, the outer wall of the rotating drum 503 is provided with the gear ring 511, and the gear ring 511 is meshed and connected with the driving gear 510 on the third driving motor 509; the rotating drum 503 is a cylindrical cavity structure with both ends open, and the inner wall of the rotating drum 503 is provided with a spiral guide plate, the rotating drum 503 is connected with the drying box 502 through the auxiliary receiving group 8 at the bottom; the inside of the drying box 502 is provided with the air guide box 508, and the air guide box 508 is arranged on the outer wall of the rotating drum 503, the air inlet of the air guide box 508 is connected with the heater through the air guide pipeline; one end of the drying box 502 is provided with a third fixed support 504, the upper part of the third fixed support 504 is provided with a material loading plate 505 and a feeding hopper 506, the bottom of the feeding hopper 506 is connected with one end of the rotating drum 503 through the discharging pipeline.

[0061] It should be noted that the system concentrates various devices such as drying, crushing and screening on the first fixed support 4 to form an integrated processing platform, effectively reducing the material transfer link and improving the overall processing efficiency, wherein the drying device 5 as the core component is used for heating and drying treatment of liquor discarded bran. The rotating drum 503 is arranged inside the drying box 502, the spiral guide plate is installed on the inner wall of the rotating drum 503, during the rotation of the rotating drum 503, the spiral guide plate stirs the liquor discarded bran continuously on one hand, so that the material and hot air are in full contact, and on the other hand, the spiral guide plate guides the material to move along the axial direction of the rotating drum, realizing uniform drying and orderly conveying, the heating box 508 is arranged at the lower part of the rotating drum 503, hot air is introduced into the heating box 508 through the pipeline, the hot air surrounds the rotating drum 503 for heating, the heat is quickly transferred to the inside of the rotating drum, the moisture in the liquor discarded bran evaporates rapidly, realizing efficient drying. The dried liquor discarded bran directly enters the subsequent crushing device through the outlet of the rotating drum 503, without additional transfer, reducing time and labor cost.

[0062] It needs to be further explained that in order to realize the rotation of the rotating drum 503, the bottom of the rotating drum 503 is connected with the drying box 502 through the auxiliary receiving group 8, and a gear ring 511 is arranged on the outer wall of the rotating drum 503, the gear ring 511 is meshed and connected with the driving gear 510 on the third driving motor 509, so as to realize the rotation of the whole rotating drum 503.

[0063] As Figures 1-13 shown, the crushing device 6 includes a crushing box 601, a first crushing roller 602, a second crushing roller 603, a motor support 604, a fourth driving motor 605, and a first gear 606 and a second gear. The crushing box 601 is a rectangular cavity structure with an open top, and the inside of the crushing box 601 is provided with the first crushing roller 602 and the second crushing roller 603. One end of the first crushing roller 602 and the second crushing roller 603 is respectively provided with the first gear 606 and the second gear, and the first gear 606 and the second gear are meshed and connected. One end of the crushing box 601 is provided with the motor support 604, and the fourth driving motor 605 is arranged on the upper part of the motor support 604. The output shaft of the fourth driving motor 605 is connected with the first crushing roller 602 through a shaft coupling. The crushing box 601 is connected with the first fixed support 4 through a fourth fixed support, and the bottom of the crushing box 601 is provided with a discharge port. The lower part of the discharge port is provided with a first conveying belt 17. One end of the first conveying belt 17 is connected with the screening device 7 through a discharging chute 9 and a lifting support 10.

[0064] It needs to be explained that the inside of the crushing box 601 is provided with the first crushing roller 602 and the second crushing roller 603, one end of which is respectively provided with the first gear 606 and the second gear, which are meshed and connected with each other. Under the driving of the fourth driving motor 605, the transmission is realized, so that the two crushing rollers are rotated to realize the crushing treatment of the materials. In addition, the crushed materials are transported by the first conveying belt 17, and then connected with the screening device 7 through the discharging chute 9 and the lifting support 10 for rapid screening treatment of the materials.

[0065] As Figures 1-13As shown, the screening device 7 comprises a fifth fixed support 701, a vibrating table 704, a fixed groove 706 and a vibrating motor 705, the fifth fixed support 701 is fixedly arranged on the first fixed support 4, and the upper part of the fifth fixed support 701 is connected with the vibrating table 704 through an extension rod 702, and the outer wall of the extension rod 702 is provided with a pressure spring 703; the upper part of the vibrating table 704 is provided with the fixed groove 706, and the inside of the fixed groove 706 is provided with a first screening groove 709 and a second screening groove 707, a plurality of first screening holes and a first discharge pipeline 710 are arranged on the first screening groove 709; a plurality of second screening holes and a second discharge pipeline 708 are arranged on the second screening groove 707; the upper part of the fifth fixed support 701 is provided with the vibrating motor 705, and the vibrating motor 705 is connected with the bottom of the vibrating table 704; the upper part of the first fixed support 4 is provided with a first feeding groove 13, and the inside of the first feeding groove 13 is provided with a second conveying belt 14 and a third conveying belt 15; the inside of the fifth fixed support 701 is provided with a second feeding groove, and the inside of the second feeding groove is provided with a fourth conveying belt 16; the inside of the lifting support 10 is provided with a fourth conveying belt 11, and the upper part of the fourth conveying belt 11 is provided with a plurality of baffles, and one end of the lifting support 10 is provided with a fifth driving motor 12; the upper part of the crushing box 601 is provided with a sealing cover 607.

[0066] It should be noted that in the white spirit discarded distiller's grains treatment system, the screening link is composed of the fifth fixed support 701 and its supporting components to form a high-efficiency screening mechanism, the upper part of the fifth fixed support 701 is connected with the vibrating table 704 perpendicularly through the extension rod 702, the extension rod 702 is sleeved with the pressure spring 703, and the three form an elastic buffering structure, when the vibrating motor 705 is started, the vibration force generated by the vibrating motor 705 is transmitted to the extension rod 702 through the vibrating table 704, and the pressure spring 703 is compressed and rebounded constantly in the vibration process, which provides elastic support for the vibrating table 704 on the one hand and amplifies the vibration effect on the other hand, so that the vibrating table 704 realizes high-frequency stable and rapid vibration treatment to ensure that the white spirit discarded distiller's grains is fully dispersed in the screening process; the upper part of the vibrating table 704 is provided with the fixed groove 706, the first screening groove 709 and the second screening groove 707 are horizontally embedded in the fixed groove 706 to form a double-layer screening system. After the white spirit discarded distiller's grains material treated by drying and crushing enters the fixed groove 706, it passes through the first screening groove 709 and the second screening groove 707 in turn under the high-frequency vibration of the vibrating table 704. The first screening groove 709 and the second screening groove 707 are provided with different specifications of screening holes to realize fine secondary screening of the material; the unqualified material is discharged through the first discharge pipeline 710 communicated below the first screening groove 709 and the second discharge pipeline 708 communicated below the second screening groove 707, and then is transported by the first feeding groove 13 for subsequent treatment or recycling to ensure that the particle size of the finally output white spirit discarded distiller's grains material meets the production requirements.

[0067] It needs to be further explained that the fourth conveying belt 16 is arranged in the fifth fixed support 701, which can transport the screened material and send it into the material collecting groove at one end, so as to realize automatic drying, crushing, feeding, screening and collecting.

[0068] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A method for producing bio-organic fertilizer using mid-infrared rays, characterized in that: The following steps are involved: S1. Pretreatment of the spent grains: drying the liquor spent grains and controlling the moisture content, and then crushing the dried spent grains; S2. Prepare fermentation raw materials: Mix the crushed waste grains with water to form a fermentation substrate; S3. Inoculation of composite bacteria: Add composite bacteria consisting of photosynthetic bacteria, actinomycetes, spore-forming bacteria and yeast at a rate of 5% of the fermentation substrate weight; S4. Mid-infrared-assisted aerobic fermentation: During the aerobic fermentation process, the fermentation substrate is irradiated with mid-infrared light with a wavelength of 4μm-25μm and an irradiation intensity of 10W / m²-30W / m². The aerobic fermentation temperature is controlled at 55°C-75°C. During this period, the compost is turned by a compost turning machine that can move forward and backward and up and down on a guide rail. The turning frequency is 1-2 times a day, and the fermentation time is 2-7 days. S5. Anaerobic fermentation: After the aerobic fermentation is completed, the anaerobic fermentation conditions are controlled and then anaerobic fermentation is carried out; S6. Microaerobic fermentation: After the anaerobic fermentation is completed, microaerobic fermentation is carried out at room temperature to finally obtain biological organic fertilizer.

2. A method for producing bio-organic fertilizer using mid-infrared rays according to claim 1, characterized in that: In step S1, during the drying process of the liquor lees, the moisture content is controlled at 16%-19%, and the lees are crushed to a particle size of 50-100 mesh; In the step S2, during the mixing of the waste grains and water, the moisture content is adjusted to 58%-65%; In the step S4, mid-infrared irradiation is performed throughout the entire aerobic fermentation process, and the metabolic activities of microorganisms in the fermentation substrate are accelerated through the thermal and biological effects of the mid-infrared rays, thereby promoting the decomposition of organic matter.

3. A method for producing bio-organic fertilizer utilizing mid-infrared rays according to claim 2, characterized in that: In the step S4, the compost turning machine is combined with mid-infrared irradiation to uniformly heat the fermentation substrate, thereby further improving the fermentation efficiency and uniformity.

4. A method for producing bio-organic fertilizer using mid-infrared rays according to claim 3, characterized in that: In the step S3, the mass ratio of photosynthetic bacteria, actinomycetes, spore-forming bacteria and yeast in the composite bacterial strain is 1:1:1:

1.

5. A method for producing bio-organic fertilizer using mid-infrared rays according to claim 4, characterized in that: In the step S5, the anaerobic fermentation temperature is 25° C.-45° C., and the fermentation time is 5 days-10 days.

6. A method for producing bio-organic fertilizer using mid-infrared rays according to claim 4, characterized in that: The compost turning machine (3) comprises a machine body (301), a first rotating shaft (309), a second rotating shaft (316), a third rotating shaft, a first connecting bracket (317), a side stirring bracket (320) and a second stirring bracket (304); the machine body (301) is connected to the guide bar (2) on the material trough (1) via a running wheel (302) at the bottom, and the first rotating shaft (309) and the second rotating shaft (316) are provided on the upper part of the machine body (301); the first sprocket (313) on the first rotating shaft (309) is connected to the fourth rotating shaft on the first connecting bracket (317) via a first transmission chain (314), and the side stirring bracket (320) is provided on the fourth rotating shaft; A second connecting bracket (303) is provided at the bottom of the machine body (301), and a second stirring bracket (304) is provided on a third rotating shaft inside the second connecting bracket (303). The fifth sprocket on the third rotating shaft is connected to the sixth sprocket on the first rotating shaft (309) via a third chain (322) to form a transmission structure.

7. A method for producing bio-organic fertilizer using mid-infrared rays according to claim 6, wherein the walking wheel (302) is arranged in a connecting seat of the machine body (301), and the fifth rotating shaft in the connecting seat is connected to the seventh sprocket (304) on the output shaft of the second drive motor (308) through a fourth sprocket (305) and a fourth chain (306); A first drive motor (310) is provided inside the machine body (301), and an output shaft of the first drive motor (310) is connected to a third sprocket (311) on the upper portion of the first rotating shaft (309) via a second transmission chain (312); The second rotating shaft (316) is arranged in the middle of the two first connecting brackets (317), and an auxiliary sprocket (315) is arranged on the second rotating shaft (316), and the auxiliary sprocket (315) is connected to the first transmission chain (314).

8. A white wine waste pretreatment system, comprising a first fixed support (4), a drying device (5), a crushing device (6) and a screening device (7), characterized in that: The drying device (5) is arranged on the first fixed bracket (4) and is used for drying the liquor lees; The crushing device (6) is arranged on the first fixed bracket (4), and the crushing device (6) is located at one end of the drying device (5), and is used to crush the dried liquor lees; The screening device (7) is arranged on the first fixed bracket (4) and is used for screening the white wine dregs after crushing; The drying device (5) comprises a second fixed support (501), a drying box (502), a rotating drum (503), a heating box (508), an auxiliary receiving group (8), a third driving motor (509) and a gear ring (511); the drying box (502) is arranged on the first fixed support (4) via the second fixed support (501); the rotating drum (503) is arranged inside the through hole (507) of the drying box (502); the gear ring (511) is arranged on the outer wall of the rotating drum (503); and the gear ring (511) is meshedly connected with a driving gear (510) on the third driving motor (509); The rotating drum (503) is a cylindrical hollow structure with openings at both ends, and a spiral guide plate is provided on the inner wall of the rotating drum (503). The rotating drum (503) is connected to the drying box (502) via an auxiliary receiving group (8) at the bottom. An air guide box (508) is provided inside the drying box (502), and the air guide box (508) is provided on the outer wall of the rotating drum (503), and the air inlet of the air guide box (508) is connected to the heater through an air guide pipe; A third fixed bracket (504) is provided at one end of the drying box (502), a loading plate (505) and a feed hopper (506) are provided on the upper portion of the third fixed bracket (504), and the bottom of the feed hopper (506) is connected to one end of the rotating drum (503) via a discharge pipe.

9. A liquor waste lees pretreatment system according to claim 8, characterized in that: The pulverizing device (6) comprises a pulverizing box (601), a first pulverizing roller (602), a second pulverizing roller (603), a motor bracket (604), a fourth drive motor (605), a first gear (606), and a second gear; the pulverizing box (601) is a rectangular hollow structure with an upper opening, and the first pulverizing roller (602) and the second pulverizing roller (603) are arranged inside the pulverizing box (601); one end of the first pulverizing roller (602) and the second pulverizing roller (603) are respectively provided with a first gear (606) and a second gear, and the first gear (606) and the second gear are meshed and connected; A motor bracket (604) is provided at one end of the pulverizing box (601), and a fourth drive motor (605) is provided on the upper portion of the motor bracket (604); an output shaft of the fourth drive motor (605) is connected to the first pulverizing roller (602) via a coupling; The crushing box (601) is connected to the first fixing bracket (4) via a fourth fixing bracket, and a discharge port is provided at the bottom of the crushing box (601), and a first conveyor belt (17) is provided below the discharge port; One end of the first conveyor belt (17) is connected to the screening device (7) via a discharge chute (9) and a lifting bracket (10).

10. A liquor waste lees pretreatment system according to claim 9, characterized in that: The screening device (7) comprises a fifth fixed bracket (701), a vibration table (704), a fixed slot (706) and a vibration motor (705); the fifth fixed bracket (701) is fixedly arranged on the first fixed bracket (4); the upper portion of the fifth fixed bracket (701) is connected to the vibration table (704) via a telescopic rod (702); a pressure spring (703) is arranged on the outer wall of the telescopic rod (702); A fixed groove (706) is provided on the upper portion of the vibration table (704), and a first screening groove (709) and a second screening groove (707) are provided inside the fixed groove (706). The first screening groove (709) is provided with a plurality of first screening holes and a first discharge pipe (710); the second screening groove (707) is provided with a plurality of second screening holes and a second discharge pipe (708); A vibration motor (705) is provided on the upper portion of the fifth fixed bracket (701), and the vibration motor (705) is connected to the bottom of the vibration table (704); A first feeding trough (13) is provided on the upper portion of the first fixed bracket (4), and a second conveyor belt (14) and a third conveyor belt (15) are provided inside the first feeding trough (13); a second feeding trough is provided inside the fifth fixed bracket (701), and a fourth conveyor belt (16) is provided inside the second feeding trough; A fourth conveyor belt (11) is provided inside the lifting bracket (10), and a plurality of baffles are provided on the upper portion of the fourth conveyor belt (11); a fifth drive motor (12) is provided at one end of the lifting bracket (10); A sealing cover (607) is provided on the upper portion of the crushing box (601).

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