147 results about "Wood ash" patented technology

The invention discloses an element liquid fertilizer for promoting nutrient absorption and a preparation method thereof, and belongs to the technical field of fertilizers. Comprising monoammonium phosphate; urea; potassium nitrate; cake fertilizer leach liquor; trace elements; a wetting agent; a stabilizer; a biological agent; an adsorbent; deionized water; the preparation method of the adsorbent comprises the following steps: A1, taking loofah sponge powder, and removing lignin and hemicellulose to obtain loofah sponge cellulose powder; a2, mixing the loofah sponge cellulose powder, deionized water, a chitosan solution and plant ash, mechanically pulping uniformly, performing vacuum freeze-drying treatment to form holes, crushing and grinding to obtain the adsorbent, root development can be promoted, elongation and thickening of stems are promoted, the photosynthetic rate of plants is increased, and the crop yield is increased.

The invention provides a biological organic fertilizer and a preparation method thereof. The biological organic fertilizer is prepared from the following raw materials in parts by weight: 10 to 15 parts of rice husk, 8 to 12 parts of peanut shell, 10 to 15 parts of bagasse, 15 to 20 parts of straw, 20 to 25 parts of livestock manure, 5 to 10 parts of pond sludge, 3 to 5 parts of plant ash, 5 to 10 parts of oil meal, 5 to 10 parts of ammonium phosphate, 2 to 5 parts of low-temperature complex microbial inoculants, 3 to 6 parts of seaweed oligosaccharide, 5 to 10 parts of modified vermiculite powder and 10 to 20 parts of photothermal conversion microspheres. According to the invention, waste is taken as a basic raw material and is matched with ammonium phosphate to rapidly supplement available nutrients, and meanwhile, the low-temperature complex microbial inoculant, the modified vermiculite powder and the photothermal conversion microspheres are introduced to form a synergistic interaction system. Vermiculite powder is modified, so that the nutrient adsorption and slow release capability is improved, a carbon source and low-temperature protection are provided for microorganisms, and the cell membrane stability is enhanced. The photothermal conversion microspheres efficiently absorb sunlight and convert the sunlight into heat energy, a local and mild heat island effect is formed around the fungicide, the microenvironment temperature is increased, breeding of the fungicide is remarkably accelerated, and therefore organic matter decomposition and nitrogen conversion are accelerated.

The invention discloses a plant ash loaded cation modified chitosan-polyacrylamide efficient sludge dehydrating agent as well as a preparation method and application thereof, and belongs to the technical field of sludge dehydration. The preparation method of the efficient sludge dehydrating agent comprises the following steps: firstly, carrying out cationic grafting modification on chitosan by adopting dimethyl diallyl ammonium chloride, and then introducing the cationic grafting modified chitosan and polyacrylamide into the surface of plant ash, so that the surface of the plant ash is obviously changed; and a discontinuous, multi-gap, disordered and irregular multi-layer structure is presented. The specific surface area of the plant ash is increased by introducing the cationic grafting modified chitosan and the polyacrylamide, and the complex surface structure is beneficial for the plant ash to generate gaps which are difficult to compress in a sludge filter cake in the sludge dewatering process, so that the dewatering performance of the sludge is improved.

The present application aims at the problems of excessive consumption of traditional cement limestone resources, excessive energy consumption and high carbon emission, and provides a carbonated hardened low-calcium cement and a preparation and hardening method thereof, which is a hardening method for curing low-calcium cement by CO2 carbonation. The mass percentage composition of cement raw material components is: limestone: 60-70%, sandstone or clay or silica ash: 15-25%, phosphogypsum, fluorogypsum or desulfurization gypsum: 5-25%, component A: 0.5-2%. Component A is composed of the following raw material components in mass percentage: fluorite 0-50%, barium slag: 0-50%, lithium slag 0-50%, wood ash 0-50%, industrial sodium carbonate 0-30%. The composition design of carbonated hardened cement clinker minerals is C2S: 10-90%, C5S2$: 10-90%, C$: 0-5%, C4A3$: 0-10%, etc. In the present application, the limestone required for the cement clinker is lower than that of ordinary Portland cement clinker, the calcination temperature is reduced by 200-350 DEG C than that of ordinary Portland cement clinker, and the energy consumption and carbon emission are significantly lower than those of Portland cement; the low-calcium cement is hardened by CO2 carbonation curing, which can make the cement obtain excellent mechanical properties within 2 hours.

The invention provides a preparation method of artificial oven subsoil. The preparation method comprises the following steps: firstly, mixing shrub ash, rice hull ash and wormwood ash in proportion to prepare plant ash, then mixing calcined and crushed oyster shells and plant ash, adding water, washing and removing impurities to prepare mortar, and then adding loess powder for injection molding; drying at the temperature of 250-350 DEG C, oxidizing at the temperature of 450-650 DEG C and reducing at the temperature of 750-850 DEG C to finally obtain the artificial oven subsoil. According to the method, the natural production process of traditional oven subsoil is simulated, the compound structure and effective component composition of the natural oven subsoil are successfully reproduced, the obtained product is stable in component and quality, the content of heavy metal and pesticide residues meets the safety standard, and the problems that natural resources are exhausted, and the quality of the oven subsoil all over the country is uneven are effectively solved.

The invention relates to the technical field of organic fertilizer production, in particular to a mixed organic fertilizer based on livestock and poultry manure and a production process thereof, and the mixed organic fertilizer comprises the following raw materials: livestock and poultry manure, straw powder, plant ash, modified humic acid, a complex microbial inoculant, a modified water-retaining agent, a trace element additive and a binder. According to the invention, the modified humic acid is subjected to activation and integration treatment, so that the capability of exciting soil activity and stabilizing nutrients of the modified humic acid is remarkably improved; the complex microbial inoculant adopts a microcapsule embedding technology, so that the activity of functional microorganisms is effectively protected, and the functional microorganisms can stably survive and continuously play a role in a fertilizer environment; the modified water-retaining agent forms a three-dimensional network structure through graft copolymerization, and has excellent water absorption and retention performance and nutrient slow release function.

The invention provides a method for roasting-leaching clay type lithium ore by replacing a roasting aid with biomass, and belongs to the technical field of ore dressing processes. According to the method, the plant ash generated after biomass combustion is used for replacing part of alkali-containing salt or alkali in the clay type lithium ore so as to achieve the purpose of alkali roasting-water leaching, the sintering condition of a roasting auxiliary and the clay type ore can be effectively reduced through addition of the plant ash, and bulk consumption of solid waste of the plant ash is achieved. The invention provides a mixed roasting-water leaching method of plant ash generated after biomass combustion and clay type lithium ore, so that the consumption of a roasting auxiliary agent is greatly reduced (the consumption of an alkaline agent is reduced by 50-80%), the phenomenon that the roasting auxiliary agent and the clay type ore are easy to sinter at high temperature is improved, clean and effective utilization of biomass is realized, and the method is suitable for industrial production. The lithium obtained through the method is high in leaching rate and low in cost.

The present invention discloses a damping cloth for final polishing of optical elements and a preparation process thereof, belonging to the technical field of damping cloth. A damping cloth for final polishing of optical elements comprises an elastic base layer, a water-repellent layer and an abrasive layer in sequence from the polishing contact surface to the adsorption surface. The water-repellent layer comprises a water-isolating layer and a buffer layer. The buffer layer is made of a polyurethane foam material containing modified glass powder, and the water-isolating layer is a polyurethane waterproof film. The present invention solves the problem that the surface of the existing damping cloth is prone to bacterial growth and mildew. The present invention proposes a damping cloth for final polishing of optical elements and a preparation process thereof. The elastic base layer adopts a structure in which an outer layer covers a fabric layer, thereby improving the flatness of the entire damping pad. The wood ash component in the modified glass powder can increase the alkalinity of the polishing liquid. The wood ash itself has a bactericidal effect, which can prevent the damping cloth from breeding bacteria and mildew, thereby improving the service life of the damping cloth.

A kind of akebia trifoliata seed seedling method, comprising the following steps: selecting suitable nursery land;Organic fertilizer is applied, soil is ploughed, and seedbed is made;Sterilize to seedbed ridge surface, after sterilization, forest humus and wood ash are covered on seedbed ridge surface, then mulch is covered on seedbed;Fully mature akebia trifoliata fruit is collected, seed is taken, washed, and dried;Seed is soaked with carbendazim solution, after soaking, seed is mixed with clean river sand, then covered with straw, placed in cool place, daily water is sprayed to ensure that straw is wet, until seed is white to reach requirement;According to predetermined plant spacing, hole is dug on seedbed ridge surface, white seed is placed in each hole, covered with forest humus, then covered with straw to conserve soil moisture;Seedling emerges, seedbed is cultivated and weeded, leaf is unfolded, and pinching is carried out, and interval seedling is carried out when pinching is carried out.The akebia trifoliata seed seedling method of the application can reduce akebia trifoliata seed disease occurrence, and improve akebia trifoliata seed survival rate.

The application provides a preparation of a fermentation bed and application of waste of the fermentation bed in preparation of special organic fertilizer for rice, belongs to the technical field of livestock breeding, and specifically relates to a fermentation bed for cattle breeding, which comprises raw materials: rice straw, rice husk, quicklime, corn flour, wheat bran, sawdust and mixed bacteria liquid A; the mixed bacteria liquid A comprises Bacillus subtilis, Clostridium butyricum, Rhodopseudomonas palustris, Saccharomyces cerevisiae and Lactobacillus acidophilus; and a special organic fertilizer for rice, which comprises components: the above-mentioned waste fermentation bed, rice straw, rice husk, wood ash, mixed bacteria liquid B and mixed enzyme preparation; the provided fermentation bed can effectively degrade cattle manure, solve the problem of dirty and smelly breeding environment, and effectively reduce the incidence of diseases such as cattle diarrhea; and the provided special organic fertilizer for rice meets the nutritional requirements of rice planting, improves the yield and stress resistance of rice, and prevents or reduces the occurrence of diseases.

This invention discloses a method for preparing recycled planting soil from river dredging soil. First, 0.5-1% wt quicklime and 20-30 g / cubic meter of chloropicrin are mixed into low-moisture dredging soil cake, then covered with a film and left to stand at room temperature for 3-4 days to allow the ash to settle. Next, 1-2% wt wood ash, 1-3‰ wt indoleacetic acid, and 3-6% wt magnesium peroxide are mixed into the sterilized dredging soil. Finally, a soil layer structure is laid, thereby creating a planting environment that promotes plant root growth. This invention's preparation method is simple, resource-efficient, and environmentally friendly. It effectively solves the problems of low plant survival rates and slow growth when dredging soil is directly used for planting, and alleviates many problems associated with storing dredging soil.

The method comprises the following steps: grinding and sieving phosphate tailings, weighing a certain amount of phosphate tailings, adding deionized water according to a certain solid-to-liquid ratio, preheating in a constant-temperature water bath, and heating and stirring; adding a phosphoric acid solution at a certain temperature, and stirring to react for a period of time; after the reaction is finished, drying a product in a drying oven, and grinding to obtain modified phosphate tailings; mixing phosphate tailings, the modified phosphate tailings, plant ash, humic acid and charcoal to obtain phosphate tailing soil; the phosphate tailing soil is used for planting plants, so that phosphate tailing waste utilization is realized; the phosphorus tailings are treated into the soil for plant growth, the preparation process is simple, the energy consumption is low, the problems of land resource occupation, environmental pollution and the like caused by phosphorus tailings stacking are relieved, resource utilization of the phosphorus tailings is achieved, and a solution is provided for reduction and resource utilization of the phosphorus tailings.

The application belongs to the technical field of organic waste treatment, and discloses a device and method for strengthening hydrothermal carbonization of organic waste by coupling with wood ash and granulation, which utilizes a vibration fluidization device to perform vibration fluidization on the organic waste, utilizes three-layer spiral blade paddles to perform multi-stage cutting and stirring on the organic waste, and realizes multi-stage mechanical granulation of the organic waste under the joint action of the two, destroys and modifies the macrostructure of the organic waste, and changes the organic waste into uniform small-particle organic waste; subsequently, alkali wood ash is utilized to promote alkaline deconstruction of the biomass molecules of the uniform small-particle organic waste, destroy and modify the microstructure of the organic waste, and improve hydrothermal activity.

The invention relates to a curing agent for high-flow-state solidified soil applied to underwater structure scour pit protection, the high-flow-state solidified soil and application of the high-flow-state solidified soil, and relates to the field of hydraulic engineering materials. The curing agent comprises a powder curing agent and a liquid curing agent, and the mass ratio of the powder curing agent to the liquid curing agent is (5-15): (0.1-0.6); the powder curing agent comprises sulphoaluminate cement, superfine slag powder, fly ash, gypsum powder, plant ash, silica powder, alkaline residues, hydroxypropyl methyl cellulose, polyvinyl alcohol, an exciting agent and a water reducing agent; the liquid curing agent comprises deionized water, sodium methyl silicate, potassium methyl silicate and polydimethylsiloxane. The raw materials of the high-flow-state solidified soil comprise slurry, fine sand and a curing agent. The application refers to the application in underwater structure scour pit protection. The construction method has the advantages in the aspects of underwater construction, scouring resistance, compact filling, bearing and the like, and the constructability, adaptability, durability and safety of the solidified soil in the aspect of underwater structure protection are improved.

The present application relates to the field of sewage treatment, in particular to a method for solving sludge bulking of sewage treatment system in winter, comprising the following steps: 1, judging the cause of sludge bulking, detecting the sewage index, activated sludge index and reclaimed water quality index, and judging the degree of sludge bulking; 2, sludge bulking treatment, intermittent aeration and oxygenation according to the degree of sludge bulking, adding O3 to kill part of filamentous bacteria, adding wood ash, accelerant and organic biological complexing agent, increasing the adhesion of activated sludge and the number of microorganisms; 3, discharge activation, using a small low-voltage discharge device, passing a small current into the sewage tank, and exciting microbial activity through the current; 4, intermittent pumping of sewage, the step comprising starting the sewage pump, intermittent pumping of sewage, until the activated sludge settling ratio of the aerobic tank is greater than 40%. The present application has the advantages of simple operation, low investment and stable effect, and can solve the problem of sludge bulking of the sewage treatment system in a short time.

Belonging to the technical field of insecticides, the invention discloses a sterilization insecticide, which comprises the following raw materials by weight: 20-40 parts of water; 0.1 to 0.5 part of herb of lindera glauca; 0.1 to 0.5 part of rhododendron molle; 0.2 to 0.7 part of Japanese raspberry root; 0.1 to 0.5 part of typhonium giganteum; and 0.1 to 0.5 part of Aconitum aureum. 0.1 to 0.5 part of pinellia ternate; 0.05 to 0.4 part of plant ash; 0.2 to 0.8 part of white spirit; according to the invention, the reagent with sterilizing and insecticidal effects can be obtained by rapidly proportioning water, herb of lindera glauca, rhododendron molle, root of Japanese raspberry, typhonium giganteum, root of aconitum var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var. Var

The application belongs to the technical field of tea processing, and discloses a carbon roasting quality improving method for Zhangping Shuixian tea, which comprises the following steps: taking charcoal, and burning until the charcoal is red and has no residual smoke; transferring the stable charcoal fire to a roasting furnace, and covering a layer of wood ash on the stable charcoal fire; taking Zhangping Shuixian tea cakes with a water content of 55%-65%, and uniformly spreading the tea cakes on the roasting furnace; adopting a three-stage step-down temperature process for roasting, and the first stage is to control the ambient temperature above the roasting furnace to be 90-100 DEG C, and the roasting time is 60 minutes; the second stage is to control the ambient temperature above the roasting furnace to be 80-90 DEG C, and the roasting time is 100-120 minutes; and the third stage is to take the leaf surface temperature of the Zhangping Shuixian tea cake as a target, control the leaf surface temperature to be 70-75 DEG C, and the roasting time is 180-240 minutes, and during the roasting process, each Zhangping Shuixian tea cake is turned over 1-2 times; through the three-stage step-down temperature process and taking the leaf surface temperature as the final control target, the roasting parameters are quantified, the product quality is stable and consistent, the aroma and the taste thickness of the Zhangping Shuixian tea are improved, and the Zhangping Shuixian tea is more resistant to storage.

The invention relates to a soil anti-seepage agent as well as a preparation method and application thereof, and belongs to the technical field of soil seepage prevention. The invention provides a soil anti-seepage agent. The soil anti-seepage agent is prepared from the following components in parts by mass: 20 to 30 parts of biomass charcoal, 20 to 30 parts of polyacrylamide, 5 to 15 parts of silicate slag, 10 to 20 parts of plant ash and 2 to 8 parts of polyglutamic acid. Hydrophobic biomass charcoal and other components are combined to prepare the soil anti-seepage agent, the soil anti-seepage agent is sprayed on the surface of soil, the hydrophobicity of the soil anti-seepage agent is compacted and utilized, the polymerization energy of water is larger than the surface tension of water, a very good anti-seepage effect is achieved, the raw materials are wide in source, the cost is low, and operation is easy.

This invention discloses a method for preparing an acidic soil conditioner, belonging to the field of soil improvement technology. This method uses dolomite powder, phosphogypsum, and wood ash as core raw materials, without adding any additional components. By precisely controlling the raw material pretreatment parameters, mixing ratios, activation reaction conditions, and post-treatment processes, the prepared acidic soil conditioner can rapidly adjust soil pH, improve soil fertility and water retention capacity, and continuously improve soil physicochemical properties, suitable for various acidic soils (pH 3.5~6.0). The preparation process of this invention is simple, highly controllable, has high raw material utilization, produces no harmful byproducts, and has low preparation costs. The mixing ratio formulas and reaction parameter formulas involved are all independently designed.

The invention relates to the technical field of straw recycling, and discloses an agricultural straw recycling combustor which comprises a combustion furnace provided with a spherical shaking cavity and a plant ash opening, a shaftless screw conveyor is arranged on the outer wall of one side of the upper portion of the combustion furnace, a feeding hopper is arranged on the shaftless screw conveyor, and a lifting mechanism is arranged at the top of the combustion furnace; a rotating shaft is rotatably connected to the inner wall of the top of the combustion furnace, a first sliding sleeve is slidably connected to the outer wall of the rotating shaft, a plurality of poke rods are fixedly connected to the outer wall of the first sliding sleeve at equal intervals, the lifting mechanism can make the poke rods on the first sliding sleeve move up and down in a reciprocating mode, and a fixing ball is rotatably connected to the outer wall of the rotating shaft; and the outer wall of the fixing ball is rotationally connected with an incineration shaking plate. Through multiple linkage structures such as stirring, shaking, gas pushing and impacting, straw is fully loosened and combusted, plant ash residues are efficiently cleaned, blockage is prevented, and the combustion efficiency and stability are greatly improved.

The utility model relates to the technical field of food processing, and discloses a smoking oven for food processing, which comprises a cabinet body; the fumigation assembly comprises a drawer, a tray, heat conducting plates and an outer cover, the outer cover is fixedly installed at the bottom of the cabinet body, the drawer is connected with the outer cover in an inserted mode, the tray is detachably connected with the outer cover, the heat conducting plates abutting against the top face of the outer cover are fixedly installed at the end of the tray, and a collecting cavity is formed in the top of the tray. Smoke is exhausted upwards from a smoke outlet, one part of smoke rises naturally, the other part of smoke is extracted to the upper portion through a draught fan, convection of the upper smoke and the lower smoke enables meat on the multiple supporting plates in the cabinet body to keep the consistent smoking effect, grease generated in the meat smoking process on the supporting plates is loaded through the trays, and wood ash generated after combustion in the drawers is further placed in the collecting cavity. The grease is adsorbed through the wood ash, so that the grease is conveniently collected and adsorbed, and the caked wood ash and grease are easier to clean.

This invention relates to a Jian ware tea bowl with golden hare's fur glaze. Specifically, this invention provides a preparation process for a golden hare's fur Jian ware tea bowl, which includes the following steps: preparing a body, wood ash, and glaze slurry; applying the glaze slurry to the body; and firing the glazed body to obtain the golden hare's fur Jian ware tea bowl. The golden hare's fur Jian ware tea bowl prepared by the process described in this invention has a unique and beautiful appearance, thus possessing profound artistic connotation and charm, thereby enhancing the artistic and aesthetic level of Jian ware tea bowls.

The invention discloses a low-water-absorption high-strength porous pelelith lightweight aggregate and a preparation method thereof, and relates to the technical field of artificial lightweight aggregates for building materials. Porous pelelith particles are used as a porous core part, and low-melting-point glass powder, plant ash, fly ash, coal gangue, fluorite and the like are used as surface coating raw materials. The preparation method comprises the following steps: shaping porous pelelith particles, weighing and homogenizing coating raw materials in proportion to obtain composite powder, uniformly coating the surfaces of the shaped porous pelelith particles with the composite powder by using a granulator, fully drying, sintering, and finally cooling along with a furnace. The lightweight aggregate has the advantages of low water absorption rate, high cylinder compressive strength and the like, and can meet the performance requirements of the lightweight aggregate for concrete; meanwhile, the adopted coating raw materials are mainly various solid low-melting-point materials or low-cost materials, and the resource utilization scene of the solid low-melting-point materials can be further expanded; and the heat treatment temperature is as low as 250 DEG C, so that the energy-saving effect is obvious.

The invention belongs to the technical field of compound fertilizers, and particularly relates to a compound fertilizer for improving the quality and yield of avocado fruits and a preparation method of the compound fertilizer. The compound fertilizer for improving the fruit quality and yield of avocados is prepared from the following raw materials: urea, a calcium magnesium phosphate fertilizer, potassium sulfate, magnesium chloride, corn straw, livestock manure, plant ash, fulvic acid, bacillus subtilis and soybean meal and corn germ meal composite enzymatic hydrolysate, wherein the soybean meal and corn germ meal composite enzymatic hydrolysate is a papain directional enzymatic hydrolysate. When the fertilizer is used for planting avocados, the quality and yield of the avocados can be remarkably improved.

A compound microbial agent for enhancing corn yield, its preparation method, and its application are disclosed, relating to the fields of agriculture and biotechnology. Replacing traditional chemical fertilizers with this compound microbial agent can effectively improve crop growth and reduce environmental pollution. The compound microbial agent comprises a compound bacterial solution and a compound carrier. The compound bacterial solution includes a suspension of Enterobacter and a suspension of Pseudomonas, while the compound carrier includes wood ash, vermiculite, sodium carboxymethyl cellulose, trehalose, and humic acid. The method involves mixing the Enterobacter and Pseudomonas suspensions to form the compound bacterial solution; then mixing the compound bacterial solution with the compound carrier at a 1:1 volume ratio, air-drying, maturing, and adjusting the moisture content to obtain the compound microbial agent. This agent can improve soil physicochemical properties, promote corn growth, and achieve the goal of increasing yield and income.

The invention relates to a potted plant substrate and a nutrient preparation method, and belongs to the technical field of potted plant cultivation, the preparation method comprises the following steps: S1, uniformly mixing coconut shell materials, peat soil, perlite, carbonized rice husks and plant ash to obtain a basic substrate; s2, uniformly mixing the plant source bio-organic fertilizer and the compound fertilizer to obtain a nutrient agent; s3, mixing and uniformly stirring the basic substrate and the nutrient agent to obtain a finished substrate product for the potted plant. The coconut shell materials with three different structural systems and the peat soil with different particles and pH values are selected, the requirements of various different potted plants can be met, and the root growth requirements of different plants are met; in addition, coffee fruit shells, moringa oleifera leaves, pine needle meal and bagasse are combined for use, and trichoderma harzianum and burkholderia cepacia are adopted for compound fermentation, so that the prepared plant source bio-organic fertilizer can effectively enable the prepared matrix finished product for potted plants to have the characteristics of excellent growth promotion and high survival promotion.

This invention provides a high-efficiency seedless grape cultivation technology. Through systematic innovation in seed pretreatment, compound growth regulator formulation, substrate optimization, and precise cultivation management, it overcomes traditional technological bottlenecks. Seed pretreatment employs a quicklime-distilled water activation method combined with wood ash-milk fermentation and ultrasonic-assisted treatment, significantly improving embryo activity and germination rate. The growth regulator is a golden ratio compound of gibberellin and chlorpyrifos, applied to the flower spikes twice, with sodium tungstate added to prolong efficacy, achieving a seedless rate >95% and a 20%-30% increase in berry weight. The substrate uses a multi-stage formulation system, adjusted to pH 5.0-5.5 after low-temperature sterilization, and incorporates 5% biochar to enhance water retention and pollution resistance. Innovative cultivation management includes optimized H-shaped trellis system combined with rain-sheltered cultivation and precise water and fertilizer management, resulting in a stable yield of over 1500 kg / mu, extended shelf life to 15 days, and a cultivation cycle shortened to 2 years before fruiting. This technology comprehensively improves fruit quality and planting efficiency, demonstrating significant application value.

The application discloses a kind of biochar-based solar evaporator suitable for biogas slurry concentration and preparation method and application thereof, belong to biogas slurry resource utilization field.The biochar-based solar evaporator of the application is prepared by "activation pore-forming-surface blackening" two-step method, with the raw material derived from agricultural and forestry waste (including high corn stalk, corn stalk, bamboo, corn cob, etc.), using grasswood ash, soap nut alkali, shell powder to prepare hot alkali solution to slightly remove agricultural and forestry waste lignin to increase the diameter and number of internal pores of evaporator, and by high-temperature iron plate blackening to obtain black surface layer, synergistically realize the light-heat conversion, water transport and nutrient reflux of biochar-based solar evaporator in biogas slurry concentration process.The application first applies the biochar-based solar evaporator produced from agricultural and forestry waste to biogas slurry nutrient concentration, not only realizes "waste treatment, waste into treasure", but also greatly improves the application value of biogas slurry.

The utility model discloses an automatic supporting device of a joinery band-sawing machine, which relates to the technical field of joinery band-sawing machines and is technically characterized by comprising a machine body, a working table is fixedly connected onto the machine body, a bottom plate is fixedly connected to the lower end of the machine body, and a guide mechanism is arranged on the working table. The guide mechanism is arranged to limit the two sides of plates with different widths, it is guaranteed that the plates cannot deviate in the cutting process, the dust collection mechanism is arranged to adsorb wood ash generated by cutting the plates, the dust collection mechanism is arranged, the dust collection mechanism is arranged on the bottom plate, and the supporting mechanism is arranged on the bottom plate. And the influence of wood ash on the health of workers is avoided, the supporting mechanism is arranged to support the suspended part of the long plate, and the stability during plate cutting is improved.

The application discloses a kind of self-activated geopolymer anticorrosion coating and preparation method thereof, which is prepared with modified fly ash hollow microsphere, superfine slag powder, recycled concrete micro powder, desulfurization gypsum, activated red mud powder, carbide slag powder, wood ash powder, polycarboxylic acid water reducing agent, defoaming agent and the like as raw materials;The modified fly ash hollow microsphere is modified calcium-iron hydrotalcite coated with fly ash hollow microsphere.In-situ growth of calcium-iron hydrotalcite loaded with DTPMP inside acid-treated fly ash hollow microspheres using microwave-assisted technology can improve the effect of geopolymer anticorrosion coating on replacing harmful ions and improve its corrosion resistance;At the same time, the modified red mud powder, carbide slag powder and wood ash powder can form a ternary alkaline environment rich in Ca(OH), Na(OH) and Ka(OH) when they come into contact with water, which can stimulate more complete geopolymerization of silicate and aluminate precursors, thus obtaining a self-activated geopolymer anticorrosion coating that is strong, dense and resistant to chloride ion penetration.