207 results about "Corncob" patented technology

The invention discloses an endoglucanase truncated mutant and an application of the endoglucanase truncated mutant. According to the invention, based on endoglucanase BsEGL from bacillus subtilis DLG, a truncated mutant is constructed by deleting a carbohydrate binding domain (CBM) of the endoglucanase BsEGL, and the truncated mutant is named as BsEGL [delta] CBM. Compared with BsEGL, the truncated mutant BsEGL delta CBM has the advantages that the thermal stability, the pH stability, the organic solvent tolerance and the like are remarkably improved, and the activity of degrading phosphoric acid expanded cellulose and corncob xylan is obtained. In addition, the enzymatic activity of the truncated mutant BsEGL delta CBM is remarkably improved by 6.41%, and the catalytic efficiency is remarkably improved. Due to the characteristics, the mutant can be suitable for industrial processes such as feed processing, papermaking, biological energy sources, spinning and food brewing, and is particularly suitable for enzyme catalytic reaction under extreme environments such as high temperature and low pH. The invention provides an enzyme preparation tool with excellent performance for efficient degradation of cellulose biomass, and has important application value.

The utility model discloses an ear picking box and a corn harvester header thereof, which relate to the technical field of agricultural harvester equipment and comprise a power input part, a first power output part and a second power output part, the power input part is in transmission connection with a power supply device through a transmission system; the power input part is connected with the first power output part through a transmission shaft; according to the header of the corn harvester, the pair of seedling pulling assemblies corresponding to the corncob picking rollers composed of the adjacent corncob picking rollers is creatively in transmission connection with the corncob picking box through the transmission device, that is, the power of the pair of seedling pulling assemblies is provided by the corncob picking box, and the problem that in the prior art, the corncob picking rollers are prone to being damaged is solved. And when the seedling pulling chain is clamped and cannot rotate normally, the chain or the belt and the conveying belt for connecting the small elevator driving shaft and the small elevator driven shaft are broken.

The invention relates to the technical field of flammulina velutipes planting, in particular to a flammulina velutipes culture method and compost, which comprises the following steps: S1, preparing purple sweet potato water; the preparation method comprises the following steps: washing fresh purple sweet potatoes, mixing with water in proportion, boiling, cooling, filtering, and taking filtrate as purple sweet potato water for later use; s2, preparing a culture material; the raw materials comprise corncobs, rice bran, bran, cottonseed hulls, sugar beet pulp, soybean hulls, corn flour, brewer's grains, calcium carbonate and shellfish fossils. The preparation method comprises the following steps: weighing solid raw materials in proportion, stirring the raw materials in a stirrer for 10 minutes to obtain a mixture, uniformly mixing the mixture, adding the purple sweet potato water prepared in the step S1, fully stirring the mixture until the mixture is uniformly mixed, and controlling the water content of a final culture material to be 62-68% to obtain the culture medium. The purple sweet potato water is used for completely replacing tap water to serve as a culture material component, the purple sweet potato water is not only a solvent, but also a natural nutrient solution rich in anthocyanin, polysaccharide, vitamins and mineral substances, flammulina velutipes hyphae can absorb and convert the substances, and the anthocyanin content in sporocarp is remarkably increased.

A fermented traditional Chinese medicine feed additive for catfish, its preparation method, and its application are disclosed, relating to the field of aquatic feed additives. The preparation method involves activating and expanding the culture of *Saccharomyces cerevisiae*, *Bacillus subtilis*, and *Lactobacillus plantarum*; pulverizing *Paeonia suffruticosa* leaves, *Smilax china*, *Scutellaria baicalensis*, *Rhus chinensis*, hawthorn, *Polygonum cuspidatum*, ginkgo, and forsythia suspensa* to obtain traditional Chinese medicine powders; preparing a solid fermentation medium using the traditional Chinese medicine powders, soybean meal powder, corn cob granules, and wheat bran; inoculating *Saccharomyces cerevisiae* seed culture and *Bacillus subtilis* seed culture for aerobic fermentation; and inoculating *Lactobacillus plantarum* seed culture for anaerobic fermentation to obtain the fermented traditional Chinese medicine feed additive. The resulting fermented traditional Chinese medicine feed additive promotes the absorption and metabolic elimination of enrofloxacin in catfish, shortens the withdrawal period, has preventive and adjunctive therapeutic effects on bacterial diseases in catfish, promotes growth, reduces feed conversion ratio, and improves survival rate.

The utility model is suitable for the technical field of corn disease and pest control, provides a kind of water-saving quantitative pesticide application soil device for preventing and treating fall armyworm, including double lid pesticide application bottle [1], the double lid pesticide application bottle is used to place the pesticide soil for preventing and treating fall armyworm, the double lid pesticide application bottle includes inner lid and outer lid, the outer lid and the inner lid are all arranged on the double lid pesticide application bottle, including: the medicine outlet [2] being opened on the outer lid of the double lid pesticide application bottle, the medicine outlet is used to discharge, apply pesticide soil and the baffle [3] and two edges two through ports [4] being opened on the inner lid of pesticide application bottle for preventing and treating fall armyworm pesticide soil, the baffle is used to limit the activity range of steel ball between bottle outer lid and baffle, the through port is used to flow the pesticide soil for preventing and treating fall armyworm in pesticide application bottle;Steel ball [5] placed in the pesticide application bottle, the steel ball is located between the inner lid (baffle) and the outer lid, for opening / shutting medicine outlet.The water-saving quantitative pesticide application soil device for preventing and treating fall armyworm provided in the scheme can apply pesticide to prevent and treat fall armyworm larvae in the gap of corn core leaf, while water can be saved, quantitative pesticide application can be carried out, the effect of applying pesticide to prevent and treat pests on corn can be improved, and the use of chemical pesticide (insecticide) is reduced.

The invention discloses a corn genome breeding 45K chip and application thereof, the chip covers 44, 637 SNP loci and 27 InDel loci, and the SNP loci are uniformly distributed on 10 chromosomes and part of scaffold of a corn genome and have rich polymorphism. Compared with an existing corn chip, the SNP marker of the 45K chip is derived from re-sequencing results of 507 corn varieties, has better variety representativeness, and contains 925 key functional gene loci for close planting and high yield and 96 corn variety authenticity identification loci; the method can be more effectively used for functional gene identification, genetic diversity analysis, heterosis group division, whole genome selection analysis and variety authenticity identification.

The invention provides an energy-saving production process of xylose. The energy-saving production process comprises the following steps: crushing corncobs; a hydrolysis step; decolorizing with activated carbon; removing carbon; performing high-pressure membrane concentration; a step of adding calcium for neutralization; a step of over-carbon saturation reaction; ion exchange; performing secondary membrane concentration; carrying out secondary decolorization and interchange; moisture is removed through a triple-effect or higher-effect evaporator, and the sugar degree is increased to 65%; cooling and crystallizing the high-concentration liquid to generate high-purity xylose powder, and drying the xylose powder; warehousing finished products, sealing boxes of the obtained finished products, bagging and entering a warehouse; the energy-saving xylose production process has the advantages that the membrane concentration equipment is introduced into the production process before neutralization, so that the volume of all subsequent liquid is reduced, and the scale of subsequent treatment equipment and the consumption of water are reduced. A large amount of organic acid is removed in the concentration process, occupation of the organic acid on resin is reduced, and the exchange rate is increased; all substances except the organic acid are concentrated, and after the concentration is increased, a large amount of salt is removed through neutralization, so that the treatment content of a subsequent impurity removal procedure is reduced.

The application discloses a method for planting agaricus bisporus by using amomum tsao-ko stalks, and belongs to the technical field of edible mushroom planting. The amomum tsao-ko stalks, corn cobs, wild rice shoots and beer dregs which are soaked in a suspension liquid extracted from the amomum tsao-ko stalks and then fermented are used as planting substrates. After the agaricus bisporus mycelium grows on the planting substrates and covers the mushroom soil, trehalose and bamboo joint ginseng extract solution are sprayed, so that the agaricus bisporus mycelium germination can be effectively promoted, the mushroom speed can be improved, and the agaricus bisporus fruiting body yield and the agaricus bisporus cap diameter can be increased.

The invention provides an oyster mushroom culture medium which comprises the following raw materials in percentage by weight: 40-50% of cottonseed hull, 10-15% of corncob, 8-15% of sawdust, 6-10% of purple perilla composite powder, 5-8% of tea seed cake pretreatment powder, 3-5% of mint composite powder, 5-8% of wheat bran, 1-2% of gypsum and 0.5-1% of calcium superphosphate, the water content of the culture medium is 65-70%, and the pH value is 6.5-7.5. The invention also provides a preparation method of the oyster mushroom culture medium, which comprises the following steps: mixing the materials according to the formula proportion, and uniformly stirring; adding clear water to adjust the water content to 65-70%, stirring, and standing for 12 hours to enable the raw materials to fully absorb water; the filling amount of each bag is 1.2 kg, sterilizing for 2-3 hours by adopting 121 DEG C high-pressure steam, and cooling to 25 DEG C or below for later use. By adding the purple perilla, the sasangua cake and the mint, the insect prevention performance of the culture medium is remarkably improved, the infectious microbe contamination rate is controlled to be 3% or below, the pest invasion rate is remarkably reduced, and the biological conversion rate and the oyster mushroom quality are remarkably superior to those of a traditional culture medium.

The invention relates to the technical field of biological waste treatment, in particular to a preparation method and application of a silkworm sand feed additive. The invention provides a technical scheme for preparing a silkworm and mulberry sand feed additive rich in acid protease, pectinase and cellulase by taking silkworm sand as a core matrix and performing directional pretreatment, adaptive strain fermentation and standardized post-treatment. According to the invention, silkworm sand-corncob powder is used as a composite substrate, and the silkworm sand and the corncob powder complement each other in function, so that the problems of unbalanced nutrition and poor air permeability of a single substrate are solved. Specific aspergillus niger is used for segmented solid-state fermentation, parameters are set in a differentiated mode, and full-amount utilization of the silkworm sand is achieved; the product quality and enzyme activity are improved by optimizing the process, and the resource value is improved from the low-added-value field to the high-added-value enzyme preparation industry.

The application relates to the technical field of biomass utilization, and relates to a continuous preparation technology of furfural from corncob, which comprises the following steps: S1: corncob is crushed into powder, then is mixed with sulfur trioxide, and is subjected to steam explosion under steam pressure; S2: acid catalysis-extraction reaction; S3: the once-extracted phase is subjected to solid-liquid separation, the liquid phase is subjected to secondary extraction by using an extracting agent, and a secondary extraction phase is obtained; S4: the once-extracted phase and the secondary extraction phase are combined and are sent into a rectifying tower for rectification, and furfural with a purity greater than 99% is obtained. The application has the beneficial effects that: 1. after the corncob is crushed, the corncob is mixed with sulfur trioxide and is subjected to steam explosion, hemicellulose can be effectively stripped from lignin, the subsequent reaction of preparing furfural from hemicellulose by acid catalysis can be more easily carried out, and the yield is higher; 2. in the method, acetic acid and aluminum chloride are used as mixed acid catalysts, the reaction temperature is reduced by 20-40 DEG C compared with one-pot method, and the reaction pressure is reduced by 0.4-0.7 MPa.G compared with one-pot method, so that the requirement of the reaction on equipment is reduced.

Infill composition for artificial turf fields comprising at least one layer of particles comprising woody strip corn-based particles, comprising a particle size distribution with an initial dry size of 0.5 to 5 mm and a final size of 0.6 to 7 mm after wetting. The composition can be installed by spreading a layer of dry woody strip corn-based particles onto a provided mat on a compacted stone base; watering the particle layer so that the dry particles expand after watering; brushing the particle layer; and decompacting the particle layer so that the woody strip corn-based particles are evenly distributed over the mat.

This invention discloses a method for extracting xylose syrup from corn cobs, relating to the field of xylose production. The invention includes equipment for extracting xylose syrup from corn cobs, comprising: a sieving machine for removing dust and fine debris from the corn cobs; and a drum-type washing machine for cleaning the dust and debris from the corn cobs. This invention, through a specially designed soaking device and a timed control system, precisely controls the absorption amount, allowing for more complete hydrolysis of hemicellulose in the corn cob particles into xylose. This reduces incomplete reactions or side reactions caused by insufficient or excessive absorption. The process eliminates the need for frequent manual intervention and can automatically perform detection at preset time intervals, significantly saving labor and time costs. Because the weight of dilute sulfuric acid absorbed by the corn cob particles can be precisely controlled, the reaction conditions for each batch are more consistent, thus ensuring the stability and consistency of the xylose syrup product quality.

This utility model discloses a packaging structure for corn cob powder briquettes, including a ton bag and corn cob powder briquettes. The ton bag has a square cross-section, and the side length of the square matches the sum of the length and width of the corn cob powder briquettes. Multiple corn cob powder briquettes are stacked layer by layer inside the ton bag, with four briquettes per layer. The four briquettes are arranged in a circular arrangement, with their ends adjacent to each other, and a square hole for loose material is formed at the center. The square hole holds loose corn cob powder for counterweighting. This utility model ensures that the material weight in each ton bag is consistent, meeting the requirement for precise feeding before mixing.

The utility model relates to the technical field of corncob crushing, in particular to a corncob crushing device which comprises a crushing box and a crushing mechanism for crushing corncobs, a screening mechanism is arranged on the lower portion in the crushing box, and the crushing mechanism is located on the upper portion in the crushing box. The smashing mechanism comprises a discharging assembly used for discharging corncobs and a smashing assembly used for smashing the corncobs. The corncob discharging device has the beneficial effects that corncobs accumulated at the discharging port of the discharging bin are scrabbed downwards through mutual rotation of a first scrabbling roller and a second scrabbling roller in the discharging assembly, the discharging port of the discharging bin is dredged, and the phenomenon that a large number of corncobs are blocked at the discharging port of the discharging bin is reduced; and meanwhile, the vibration assembly is used for driving the discharging bin to generate certain vibration, the corncobs in the discharging bin are promoted to flow downwards, discharging of the corncobs is more convenient, the discharging fluidity of the corncobs is improved, and the later smashing efficiency is improved.

The application provides application of neutral protease in degradation of fumonisin, and belongs to the technical field of biology, and it is verified through experiments that the neutral protease has good degradation effect on FB1. The application also provides a compound enzyme preparation which comprises the following components: 1-5% neutral protease, 5-20% montmorillonite, 75-94% soluble starch, and only by adding 0.5wt%-1.5wt% of the compound enzyme preparation, the efficient degradation of FB1 in common contaminated feed can be realized; specifically, the degradation rate of the compound enzyme preparation on FB1 in corn flour can reach 95.73%, the degradation rate of the compound enzyme preparation on FB1 in DDGS can reach 96.43%, the degradation rate of the compound enzyme preparation on FB1 in corn steep liquor can reach 64.74%, and the degradation rate of the compound enzyme preparation on FB1 in corn cob powder can reach 93.74%.

The invention discloses a corncob removing device which comprises a separating box, a separating plate is fixed in the separating box, a net-shaped V-shaped plate is fixed to the separating plate and the separating box, a driving shaft is arranged on the separating plate, a first spiral blade, a dispersing rod and a second spiral blade are sequentially arranged on the driving shaft, a flow guide cover is fixed to the V-shaped plate, and a first spiral blade and a second spiral blade are sequentially arranged on the flow guide cover. The first spiral blade, the dispersing rod and the second spiral blade are covered with the flow guide cover, an extrusion conveying channel is formed between the flow guide cover and the V-shaped plate, a transmission cavity is formed between the isolation plate and the separation box, and a motor is installed on the separation box. The problem that traditional drum screen equipment cannot thoroughly remove impurities similar to corn in particle size and physical property is solved, forced separation of corn and corncobs is achieved, and the corn impurity removal precision is improved; meanwhile, the dust raising phenomenon on the working site is reduced through the dustproof design, the working environment is improved, and the health of operators is guaranteed.

The present application relates to a kind of preparation method of floating catalyst carbonized corncob load flower-shaped copper sulfide, through simple chemical precipitation method, in situ synthesis copper sulfide flower-shaped microspheres, and using the adhesion ability and chelating metal ion ability of polydopamine, copper sulfide is deposited on carbonized corncob, and constructs the photocatalytic efficiency high, reusable floating catalyst carbonized corncob load flower-shaped copper sulfide.The present application selects carbonized corncob as floating carrier, can achieve the effect of resource recycling, waste utilization, practices the concept of environment-friendly, sustainable development.And the synthesis method is simple and mild, solve the technical difficulty of traditional hydrothermal method high temperature and high pressure, low cost, high efficiency and economy.The prepared floating catalyst carbonized corncob load flower-shaped copper sulfide can efficiently remove Microcystis aeruginosa under visible light (λ≥420 nm) irradiation for 180 min, and has good stability, and has good application prospect in the treatment of cyanobacterial bloom.

The invention discloses a preparation method of a fluorine-containing biochar composite material and application of the fluorine-containing biochar composite material as an energy storage electrode in a supercapacitor, and belongs to the technical field of biochar energy storage material preparation. The method comprises the following specific steps: performing high-temperature anaerobic pre-carbonization by taking corncobs as raw materials and adopting a fine sand embedding and sealing method; grinding and mixing the carbonized sample with KOH powder, carrying out oxygen-isolated high-temperature activation, neutralizing to be neutral through acid pickling, repeatedly washing with water for multiple times, and drying to obtain the corncob biochar. The corncob biochar is subjected to a high-temperature vacuum evaporation reaction with carbon fluoride and fluorinated asphalt, and the fluorine-containing biochar composite material is prepared. The fluorine-containing biochar composite material, acetylene black and PVDF are weighed in proportion to prepare an electrode. The preparation method comprises the following steps: adding the fluorine-containing biochar composite material and acetylene black into absolute ethyl alcohol, carrying out ultrasonic mixing, then adding PVDF, continuously carrying out ultrasonic mixing to form slurry, coating foamed nickel with the slurry, drying and tabletting, and finally preparing the working electrode.

The utility model provides a corncob impurity removing device which comprises a base, a plurality of springs, an impurity removing box, a discharging port, a vibration motor, a connecting shaft, a driving module, an impurity removing screen drum and a plurality of impurity removing balls are vertically arranged at the top of the base, an in-out groove is formed in the top of the impurity removing screen drum, and a fence plate is arranged on the inner wall of the in-out groove. Fence holes in the fence plate can block the impurity removal balls and enable impurities and corncobs to pass through, and a material blocking sieve plate capable of blocking the corncobs and enabling the impurities to pass through is further detachably arranged on the inlet and outlet groove. According to the corncob impurity removal device, the basic requirement for performing impurity removal treatment on corncobs can be met, and effective impurity removal treatment can be directly performed on the corncobs in different areas in the impurity removal device, so that the overall efficiency of performing impurity removal treatment on the corncobs is improved.

The application belongs to the technical field of microbial fermentation, and particularly relates to a fermentation product of fruit and vegetable wastes and corn stalks and application thereof. The fermentation product is obtained by inoculating Aspergillus oryzae SLY-M-15 fermentation product and Saccharomyces cerevisiae into a first mixture containing crushed and air-dried corn stalks and fruit and vegetable wastes, performing aerobic fermentation, adding a second mixture containing crushed and air-dried corn stalks and fruit and vegetable wastes and corn cob, performing secondary aerobic fermentation, inoculating Lactobacillus casei, Lactobacillus acidophilus and Lactobacillus fermentum, and performing anaerobic fermentation. The obtained fermentation product is applied to animal feed, can improve the average daily weight gain of mutton sheep, reduce the feed conversion ratio, improve the tenderness and cooked meat rate of mutton, and increase the content of n-3 polyunsaturated fatty acids.

This utility model belongs to the field of corn cob processing technology, and particularly relates to a corn cob dietary fiber extraction device, including a fiber extraction device, and further comprising: a discharge trough, which is opened on the inner wall of the fiber extraction device and connected to the outside; a rotating trough, which is opened on the inner wall of the fiber extraction device, and a sieve plate is rotatably connected in the rotating trough, with one side of the sieve plate extending into the discharge trough, and the sieve plate being located below a detachable crushing plate inside the fiber extraction device; a first sliding trough, which is opened on the inner wall of the fiber extraction device and located below the sieve plate, and a slider is slidably connected in the first sliding trough, with one end of the slider extending into the inner cavity of the fiber extraction device, and a rotating block being rotatably connected to one end of the slider, and the rotating block being in contact with the bottom surface of the sieve plate; and a reciprocating assembly, which is located inside the fiber extraction device, solving the problem that corn cob fragments stuck together still affect the extraction efficiency of corn cob dietary fiber by the centrifugal extractor.

The invention discloses a frozen and thawed soil conditioner as well as a preparation method and application thereof. The frozen and thawed soil conditioner is mixed biomass charcoal prepared by mixing carbonized corncob biomass charcoal and carbonized wheat straw biomass charcoal. The mixed biomass charcoal has the advantages of being low in cost, easy to degrade and the like, after freezing and thawing circulation, the specific surface area of the mixed biomass charcoal is increased, the water absorption performance of the mixed biomass charcoal is improved, and the mixed biomass charcoal can effectively increase the pH value of soil and regulate and control soil nutrients.

The invention provides a fermented corncob as well as a preparation method and application thereof, and belongs to the technical field of ruminant nutrition and feed science. The fermented corncob is prepared from the following raw material components in parts by mass: 32 to 42 parts of corncob, 2.5 to 5 parts of soybean meal, 3 to 5 parts of cottonseed meal, 2 to 4 parts of wheat bran, 2 to 5 parts of rice bran, 2 to 5 parts of glucose, 2.5 to 5 parts of cane molasses, 0.2 to 0.5 part of expanded urea, 2 to 4 parts of attapulgite powder, 0.4 to 0.6 part of compound bacterium enzyme mixture, 0.3 to 0.5 part of feed-grade sodium chloride, 0.3 to 0.5 part of feed-grade magnesium oxide and 34 to 42 parts of water. The corncob and other raw materials are subjected to mixed fermentation through combination of various bacteria and enzymes, so that the nutritional value and the nutritional level of the feed are improved. The fermented corncob can replace part of corn in the feed, the production performance is improved, the feed cost is reduced, resource recycling is effectively promoted, and the palatability of the feed is improved.

The present application relates to a kind of corncob granular powder profile control water plugging agent preparation and its application.The main components of the profile control water plugging agent include corncob granular powder, liquid water glass and surfactant.Under stirring conditions, corncob granular powder is uniformly dispersed in water glass solution containing surfactant, and during stirring and dispersion, the micropores in corncob granules and their surfaces are fully wetted by water glass solution under the action of surfactant, the specific gravity of the granules is changed, and a kind of corncob granular powder profile control water plugging agent can be obtained, which is stably suspended in the solution.The profile control water plugging agent can be prepared by using injection water with appropriate concentration, and combined with different activation processes, to achieve profile control and water plugging in water drive reservoirs and gas channeling control in carbon dioxide drive reservoirs.

The application provides application of neutral protease in degradation of fumonisin, and belongs to the technical field of biology, and it is verified through experiments that the neutral protease has good degradation effect on FB1. The application also provides a compound enzyme preparation which comprises the following components: 1-5% neutral protease, 5-20% montmorillonite, 75-94% soluble starch, and only by adding 0.5wt%-1.5wt% of the compound enzyme preparation, the efficient degradation of FB1 in common contaminated feed can be realized; specifically, the degradation rate of the compound enzyme preparation on FB1 in corn flour can reach 95.73%, the degradation rate of the compound enzyme preparation on FB1 in DDGS can reach 96.43%, the degradation rate of the compound enzyme preparation on FB1 in corn steep liquor can reach 64.74%, and the degradation rate of the compound enzyme preparation on FB1 in corn cob powder can reach 93.74%.

The invention relates to the technical field of food processing, in particular to a preparation method of rice straw and corncob instant rice. Comprising the following steps: rice straw treatment: crushing, removing impurities, adding a decomposition agent, adding urea to adjust the carbon nitrogen ratio, spraying water, and composting and fermenting at the temperature of 60-65 DEG C; corncob treatment: crushing, adding water to immerse corncobs, carrying out water pretreatment, heating and soaking, and removing impurities; mixing the treated rice straws, corncobs and rice according to a ratio, adding water to soak for 30-60 minutes, washing until the water is clear, adding water according to a rice-water ratio of 1: (1.2-1.8), steaming for 30-60 minutes, and braising for 10-20 minutes; and rehydration treatment: taking the cooked rice grains, putting the cooked rice grains in boiling water, covering the boiled water, and treating the cooked rice grains by a twin-screw extrusion method for 20-40 minutes. According to the invention, the rice straws and the corncobs are used as agricultural wastes, the wastes are turned into wealth through technical transformation, and the production cost is reduced.

The invention relates to a screening device for furfural production, and relates to the technical field of furfural production, the screening device comprises a screening box body, a first roller screen, a second roller screen, a screening roller and an air blowing assembly, the first roller screen is rotatably arranged on the screening box body and is connected with a screen plate; the second roller screen sleeves the first roller screen and is rotationally arranged on the screening box body; the screening roller is arranged between the first roller screen and the second roller screen and arranged on the first roller screen in a sleeving mode, the screening roller is rotationally connected with the screening box body, a discharging interval is reserved between the screening roller and the side wall of the screening box body, and materials screened out of the first roller screen can fall onto the screening roller; the air blowing assembly is used for blowing the corncob blocks to obliquely fly to the discharging interval through air blowing holes formed in the screening roller. The first roller screen screens out stones with the size larger than that of the corncob blocks, the screening roller screens out stones with the size equal to that of the corncob blocks, and the second roller screen screens out stones with the size smaller than that of the corncob blocks. According to the application, stones mingled among the corncob blocks are screened out.

The present application discloses a kind of mycelium composite material and its preparation method and application, belong to composite material technical field.The composite material of the present application uses black oyster mushroom as strain, mycelium grows fast, can complete entire cultivation cycle in shorter time, and the black oyster mushroom mycelium used in the present application is thick and luxuriant, shows strong nutrient absorption capacity and adaptability.The mycelium composite material prepared in the medium mainly with corn cob has superior performance, has low density, low moisture absorption rate, low expansion rate and high strength, high elasticity and other characteristics, and it has more advantages in humidity control, bearing capacity and long-term stability.

The invention discloses a rapid phellinus igniarius fungus stick decomposition method suitable for a bamboo forest environment. The rapid phellinus igniarius fungus stick decomposition method comprises the following steps: mechanically crushing fungus sticks; a decomposition flora is introduced; a bamboo forest ecological circulation system is constructed; the mushroom stick substrate comprises the following components: 30-40% of bamboo sawdust; 20%-30% of mulberry twig sawdust; 15%-20% of wheat bran; 10%-15% of corncob; 1%-2% of gypsum; 0.5%-1% of a phosphate fertilizer; the content of cellulase is 0.1%-0.5%, the content of hemicellulase is 0.05%-0.1%, and the content of ligninase is 0.05% The phellinus igniarius fungus stick has the advantage that the phellinus igniarius fungus stick can be quickly decomposed in the bamboo forest land.