59results about How to "Effective sustained release" patented technology

The invention relates to a hollow porous spherical platinum-silver alloy nano-material and a preparation method for the same. The nano-material is of a spherical structure with a porous shell and an internal cavity, the diameter of the spherical structure ranges from 5 nanometers to 500 nanometers, the inner diameter of the cavity ranges from 1 nanometer to 400 nanometers, the thickness of a porewall ranges from 1 nanometer to 50 nanometers, and the pore diameter ranges from 1 nanometer to 20 nanometers. Polyatomic alcohol, inorganic silver salt precursor, inorganic platinum salt precursor and polyvinylpyrrolidone are used as reaction raw materials, inorganic salt containing halogen ions and copper-containing inorganic salt are used as auxiliaries, and the hollow porous spherical platinum-silver alloy nano-material is synthesized by means of reaction. The preparation method is simple in process, convenient in operation, fine in repeatability and low in cost, and the obtained hollow porous spherical platinum-silver alloy nano-material can be used for the fields of chemical and electrochemical catalysis, chemical sensors, biomolecular sensors, information storage, fuel cells, solarcells and the like. Particularly, the hollow porous structure of the nano-material can be effectively applied to slow drug release and target-oriented drug delivery treatment.

The invention relates to the technical field of compound fertilizer, in particular to garden waste biomass charcoal-based compound fertilizer and a preparation method thereof. The preparation method includes steps that cracking garden waste under a high temperature to obtain garden waste biomass charcoal and combustible gas; mixing raw material of the compound fertilizer with 8-12% of garden waste biomass charcoal according to the total raw material weight of the compound fertilizer, melting, granulating and gathering granules; cooling the gathered granules under negative pressure, and sieving; enveloping the sieved granules, packaging and delivering to obtain the garden waste biomass charcoal-based compound fertilizer. The garden waste biomass charcoal-based compound fertilizer is rich in nutrient substance, coordinating and durable in nutrient element release, high in fertilizer nutrient use efficiency, capable of effectively improving and fertilizing the soil, improving the fertilizer utilization rate, increasing the organic substance content of the soil, lowering the volume weight of the soil, improving the moisture and fertility preserving ability of the soil and accelerating the crop growth, and also capable of obviously improving the crop output and improving the crop quality.

The invention relates to the technical field of soil conditioners, in particular to a straw biomass charcoal based soil conditioner and a preparation method thereof. The preparation method includes the steps: splitting straws at high temperature to obtain straw biomass charcoal and combustible gas; mixing, melting and pelletizing raw materials of the soil conditioner and the straw biomass charcoal accounting for 16-20% of the weight of the gross raw materials of the soil conditioner, and collecting pellets; cooling the collected pellets by negative pressure and screening the pellets; coating, packaging and delivering the screened pellets to obtain the straw biomass charcoal based soil conditioner. The straw biomass charcoal based soil conditioner has rich nutrient substances, nutrient elements are coordinately and persistently released, fertilizer nutrient utilization efficiency is high, soil can be effectively improved and fertilized, fertilizer utilization rate is increased, the content of soil organic matters is increased, soil bulk density is reduced, the moisture and fertilizer retention capacity of the soil is improved, crop growth is promoted, crop yield can be remarkably improved, crop quality is improved, and the soil conditioner has obvious economic benefits.

The invention relates to the technical field of soil conditioner, in particular to garden waste biomass charcoal-based soil conditioner and a preparation method thereof. The preparation method includes steps that cracking garden waste under a high temperature to obtain garden waste biomass charcoal and combustible gas; mixing raw material of the soil conditioner with 16-20% of garden waste biomass charcoal according to the total raw material weight of the soil conditioner, melting, granulating and gathering granules; cooling the gathered granules under negative pressure, and sieving; enveloping the sieved granules, packaging and delivering to obtain the garden waste biomass charcoal-based soil conditioner. The garden waste biomass charcoal-based soil conditioner is rich in nutrient substance, coordinating and durable in nutrient element release, high in fertilizer nutrient use efficiency, capable of effectively improving and fertilizing the soil, improving the fertilizer utilization rate, increasing the organic substance content of the soil, improving the moisture and fertility preserving ability of the soil and accelerating the crop growth, and also capable of obviously improving the crop output and improving the crop quality.

The invention relates to the technical field of compound fertilizers, in particular to a straw biomass charcoal based compound fertilizer and a preparation method thereof. The preparation method includes the steps: splitting straws at high temperature to obtain straw biomass charcoal and combustible gas; mixing, melting and pelletizing raw materials of the compound fertilizer and the straw biomass charcoal accounting for 8-12% of the weight of the gross raw materials of the compound fertilizer, and collecting pellets; cooling the collected pellets by negative pressure and screening the pellets; coating, packaging and delivering the screened pellets to obtain the straw biomass charcoal based compound fertilizer. The straw biomass charcoal based compound fertilizer has rich nutrient substances, nutrient elements are coordinately and persistently released, fertilizer nutrient utilization efficiency is high, soil can be effectively improved and fertilized, fertilizer utilization rate is increased, the content of soil organic matters is increased, soil bulk density is reduced, the moisture and fertilizer retention capacity of the soil is improved, crop growth is promoted, crop yield can be remarkably improved, crop quality is improved, and the fertilizer has obvious economic benefits.

The invention relates to the technical field of a soil conditioner, in particular to a bamboo biomass charcoal based soil conditioner and a preparation method thereof. The preparation method comprises the following steps of carrying high temperature pyrolyzing to bamboos to obtain bamboo-based biomass charcoal and combustible gas; melting, pelletizing and collecting particles after a raw material of the soil conditioner and 16-20% of biomass charcoal based on the total weight of the raw materials of the soil conditioner are mixed; cooling the collected particles with negative pressure, and screening; enveloping the screened particles, and packaging to ship, so as to obtain the bamboo biomass charcoal based soil conditioner. The bamboo biomass charcoal based soil conditioner provided by the invention is abundant in nutrient, the nutrient elements can be released and coordinated for a long time, the use ratio of the fertilizer nutrients is high, the soil can be effectively improved and fertilized, the use ratio of the fertilizer can be improved, the organic content of the soil can be improved, the soil bulk density can be reduced, the capacity of preserving moisture and fertility of the soil can be improved, the growth of the crops can be promoted, the yield of crops can be significantly improved, the crop quality can be improved, and the significant economic benefit can be realized.

The invention relates to the technical filed of soil conditioners, in particular to a traditional Chinese medicine residue biomass charcoal soil conditioner and a preparation method thereof. The preparation method comprises the following steps: pyrolyzing the traditional Chinese medicine residue at a high temperature to obtain traditional Chinese medicine residue biomass charcoal and a combustible gas; mixing the raw materials of the soil conditioner with the traditional Chinese medicine residue biomass charcoal of which the weight is 16-20% that of the gross raw materials of the soil conditioner, fusing, pelleting, collecting the granular material; cooling the collected granular material at negative pressure and screening; performing capsulation, packaging for delivery to obtain the traditional Chinese medicine residue biomass charcoal soil conditioner. The traditional Chinese medicine residue biomass charcoal soil conditioner provided by the invention is rich in nutrient substances, the release of nutrient elements is coordinated and lasting, the nutrition use efficiency of the soil conditioner is high, the soil can be effectively improved and fertilized, the fertilizer utilization rate is improved, the organic content of the soil is increased, the soil bulk density is reduced, the water and nutrient retention ability of the soil is improved, the crop growth is promoted, the crop yield is obviously improved, the crop quality is improved and obvious economic benefits are achieved.

The invention relates to the technical field of a composite fertilizer, in particular to a bamboo biomass charcoal based composite fertilizer and a preparation method thereof. The preparation method comprises the following steps of carrying high temperature pyrolyzing to bamboos to obtain bamboo-based biomass charcoal and combustible gas; melting, pelletizing and collecting particles after a raw material of the composite fertilizer and 8-12% of biomass charcoal based on the total weight of the raw materials of the composite fertilizer are mixed; cooling the collected particles with negative pressure, and screening; enveloping the screened particles, and packaging to ship, so as to obtain the bamboo biomass charcoal based composite fertilizer. The bamboo biomass charcoal based composite fertilizer provided by the invention is abundant in nutrient, the nutrient elements can be released and coordinated for a long time, the use ratio of the fertilizer nutrients is high, the soil can be effectively improved and fertilized, the use ratio of the fertilizer can be improved, the organic content of the soil can be improved, the soil bulk density can be reduced, the capacity of preserving moisture and fertility of the soil can be improved, the growth of the crops can be promoted, the yield of crops can be significantly improved, the crop quality can be improved, and the significant economic benefit can be realized.

The invention belongs to the technical field of urea, and specifically relates to straw biomass charcoal-based urea and a preparation method thereof. The preparation method comprises following steps: straw is subjected to high temperature pyrolyzing so as to obtain straw biomass charcoal and combustible gas; an urea raw material is mixed with the straw biomass charcoal, wherein the weight amount of the straw biomass charcoal accounts for 12 to 16% of the weight amount of the urea raw material; an obtained mixture is subjected to melting and pelleting, and a pellet material is collected; the pellet material is subjected to vacuum sealed cooling and screening; and then an obtained product is coated with films, is packaged, and is discharged so as to obtain the straw biomass charcoal-based urea. The straw biomass charcoal-based urea is abundant in nutrients; nutrient releasing is coordinating and long lasting; fertilizer nutrient utilization rate is high; soil improvement and soil fertilizing can be realized effectively; fertilizer utilization rate is increased; soil organic matter content is increased; soil bulk density is recued; soil water and nutrient retention capacity is improved; crop growth is promoted; crop yield is increased greatly; crop quality is improved; and economic benefits are excellent.

The invention discloses a method for preparing sphere-like mesoporous silica. The method comprises steps of successively adding quantitative CTAB (cetyltrimethyl ammonium bromide) and DDAB (dimethyl dioctadecyl ammonium bromide) into 30-35 DEG C distilled water and dissolving, adding a little ammonium hydroxide, 2 hours later, adding TEOS (tetraethyl orthosilicate), stirring constantly and reacting for 24 hours so as to obtain white precipitate, transferring the white precipitate into a reaction kettle, standing in an incubator, then suction filtering, washing, drying, grinding and calcining so as to obtain the sphere-like mesoporous silica with wormlike pore canals. By utilizing a single / double cationic surfactant composite template, the method can prepare the 90-100nm sphere-like mesoporous silica which has uniform size distribution, is uniformly distributed, and has stable structure, the pore canal is obvious and is 2-3nm, the method is widely used, has mild reaction conditions, has no toxicity and has high yield.

The invention relates to the technical field of calcium magnesium phosphate fertilizer, in particular to garden waste biomass charcoal-based calcium magnesium phosphate fertilizer and a preparation method thereof. The preparation method includes steps that cracking garden waste under a high temperature to obtain garden waste biomass charcoal and combustible gas; mixing raw material of the calcium magnesium phosphate fertilizer with 20-24% of garden waste biomass charcoal according to the total raw material weight of the calcium magnesium phosphate fertilizer, melting, granulating and gathering granules; cooling the gathered granules under negative pressure, and sieving; enveloping the sieved granules, packaging and delivering to obtain the garden waste biomass charcoal-based calcium magnesium phosphate fertilizer. The garden waste biomass charcoal-based calcium magnesium phosphate fertilizer is rich in nutrient substance, coordinating and durable in nutrient element release, high in fertilizer nutrient use efficiency, capable of effectively improving and fertilizing the soil, improving the fertilizer utilization rate, increasing the organic substance content of the soil, lowering the volume weight of the soil, improving the moisture and fertility preserving ability of the soil and accelerating the crop growth, and also capable of obviously improving the crop output and improving the crop quality.

The invention relates to the technical field of compound fertilizers, in particular to a traditional Chinese medicine residue biomass charcoal compound fertilizer and a preparation method thereof. The preparation method comprises the following steps: pyrolyzing the traditional Chinese medicine residue at high temperature to obtain traditional Chinese medicine residue biomass charcoal and a combustible gas; mixing the raw material of the compound fertilizer and the traditional Chinese medicine residue biomass charcoal of which the weight is 8-12% that of the gross raw materials of the compound fertilizer, fusing, pelleting, collecting the granular material; cooling the collected granular material at negative pressure and screening; performing capsulation, packaging for delivery to obtain the traditional Chinese medicine residue biomass charcoal compound fertilizer. The Traditional Chinese medicine residue biomass charcoal compound fertilizer provided by the invention is rich in nutrient substances, the release of nutrient elements is coordinated and lasting, the nutrition use efficiency of the compound fertilizer is high, the soil can be effectively improved and fertilized, the utilization rate of the fertilizer is improved, the organic content of the soil is increased, the soil bulk density is reduced, the water and nutrient retention ability of the soil is improved, the crop growth is promoted, the crop yield is obviously improved, the crop quality is improved and obvious economic benefits are achieved.

The invention relates to a porous active artificial bone. In the porous active artificial bone, a calcium phosphate-based biological ceramic material is used as a matrix, and the porous active artificial bone comprises small pores, dense parts and directional pore channels and chelates with diphosphonate. A preparation method of the porous active artificial bone comprises the steps of preparing calcium phosphate precursor powder, compression molding a ceramic blank by using a pore-foaming agent, polyester fiber and the precursor powder, high temperature sintering into a calcium phosphate-based ceramic sintered body and forming the dense parts, the small pores distributed alternately; and immersing calcium phosphate-based ceramic sintered body in a diphosphonate solution to chelate with the diphosphonate so as to obtain the drug-loaded porous active artificial bone. The artificial bone provided by the invention has longitudinal directional pores and a porous structure suitable for osteoblast migration, propagation and growth metabolism, can slowly release small molecular drugs capable of promoting the growth of the osteoblast and inhibiting osteoclast, and is particularly suitable for the fields of treating bone defects of osteoporosis patients, dental restoration, and the like.

The invention relates to the technical field of a urea, in particular to a bamboo biomass charcoal based urea and a preparation method thereof. The preparation method comprises the following steps of carrying high temperature pyrolyzing to bamboos to obtain bamboo-based biomass charcoal and combustible gas; melting, pelletizing and collecting particles after a raw material of the urea and 12-16% of biomass charcoal based on the total weight of the raw materials of the urea are mixed; cooling the collected particles with negative pressure, and screening; enveloping the screened particles, and packaging to ship, so as to obtain the bamboo biomass charcoal based urea. The bamboo biomass charcoal based urea provided by the invention is abundant in nutrient, the nutrient elements can be released and coordinated for a long time, the use ratio of the fertilizer nutrients is high, the soil can be effectively improved and fertilized, the use ratio of the fertilizer can be improved, the organic content of the soil can be improved, the soil bulk density can be reduced, the capacity of preserving moisture and fertility of the soil can be improved, the growth of the crops can be promoted, the yield of crops can be significantly improved, the crop quality can be improved, and the significant economic benefit can be realized.

The invention belongs to the technical field of urea, and more specifically relates to a Chinese medicine residue biomass charcoal-based urea, and a preparation method thereof. The preparation method comprises following steps: Chinese medicine residue is subjected to high temperature pyrolyzing so as to obtain Chinese medicine residue biomass charcoal and combustible gas; an urea raw material is mixed with the Chinese medicine residue biomass charcoal, and an obtained mixture is subjected to fusion and pelleting, and an obtained pellet material is collected, wherein the amount of the Chinese medicine residue biomass charcoal accounts for 12 to 16% of the total weight amount of the urea raw material; the pellet material is subjected to negative pressure cooling and screening; the screened pellet material is subjected to membrane coating, packaging, and discharging so as to obtain the Chinese medicine residue biomass charcoal-based urea. The Chinese medicine residue biomass charcoal-based urea is abundant in nutrients; nutritional element release is coordinated, and lasts long; fertilizer nutrient utilization rate is high; the Chinese medicine residue biomass charcoal-based urea is capable of improving and fertilizing soil effectively; fertilizer utilization rate is increased; soil organic content is reduced; soil bulk density is reduced; soil water and nutrient retention capacity is improved; crop growth is promoted; crop yield is increased obviously; crop quality is improved; and economic benefits are excellent.

The invention relates to the technical field of a calcium magnesium phosphate fertilizer, in particular to a bamboo biomass charcoal based calcium magnesium phosphate fertilizer and a preparation method thereof. The preparation method comprises the following steps of carrying out high temperature pyrolyzing to bamboos to obtain bamboo-based biomass charcoal and combustible gas; melting, pelletizing and collecting particles after a raw material of the calcium magnesium phosphate fertilizer and 20-24% of biomass charcoal based on the total weight of the raw materials of the calcium magnesium phosphate fertilizer are mixed; cooling the collected particles with negative pressure, and screening; enveloping the screened particles, and packaging to ship, so as to obtain the bamboo biomass charcoal based calcium magnesium phosphate fertilizer. The bamboo biomass charcoal based calcium magnesium phosphate fertilizer provided by the invention is abundant in nutrient, the nutrient elements can be released and coordinated for a long time, the use ratio of the fertilizer nutrients is high, the soil can be effectively improved and fertilized, the use ratio of the fertilizer can be improved, the organic content of the soil can be improved, the soil bulk density can be reduced, the capacity of preserving moisture and fertility of the soil can be improved, the growth of the crops can be promoted, the yield of crops can be significantly improved, the crop quality can be improved, and the significant economic benefit can be realized.

The invention relates to the technical field of calcium magnesium phosphate fertilizer, in particular to a straw biomass charcoal based calcium magnesium phosphate fertilizer and a preparation method thereof. The preparation method includes the steps: splitting straws at high temperature to obtain straw biomass charcoal and combustible gas; mixing, melting and pelletizing raw materials of the calcium magnesium phosphate fertilizer and the straw biomass charcoal accounting for 20-24% of the weight of the gross raw materials of the calcium magnesium phosphate fertilizer, and collecting pellets; cooling the collected pellets by negative pressure and screening the pellets; coating, packaging and delivering the screened pellets to obtain the straw biomass charcoal based calcium magnesium phosphate fertilizer. The straw biomass charcoal based calcium magnesium phosphate fertilizer has rich nutrient substances, nutrient elements are coordinately and persistently released, fertilizer nutrient utilization efficiency is high, soil can be effectively improved and fertilized, fertilizer utilization rate is increased, the content of soil organic matters is increased, soil bulk density is reduced, the moisture and fertilizer retention capacity of the soil is improved, crop growth is promoted, crop yield can be remarkably improved, crop quality is improved, and the fertilizer has obvious economic benefits.

The invention discloses a cyclodextrin sethoxydim or hydrophilic derivative inclusion compound of herbicide, as well as a preparation method thereof. Sethoxydim and cyclodextrin or cyclodextrin hydrophilic derivative is used as main raw materials and is mixed with additives and deionized water, and the sethoxydim is wrapped in the cyclodextrin or the cyclodextrin hydrophilic derivative by an inclusion complex method, so as to prepare the inclusion compound. The inclusion compound realizes the solidification of liquid pesticide, the high stabilization of products and the sustained release trend of effective constituent, is characterized in drift prevention, super-high efficiency, super-low toxicity, economy and safety, is an environment-friendly preparation, and can be used for preventing and removing monocotyledonous weeds in dicotyledonous crop fields.

The present invention relates to one kind of compound triptolide alcohol preparation for being injected into articular cavity to treat osteoarthritis. It includes triptolide alcohol solution of 1*10<-4> to 5*10<-2> mg / ml concentration and gel liquid mixed in the volume ratio of 1 to 1-9. It has medicine slow releasing effect, and this can prolong the action period of medicine, reduce consumption of triptolide alcohol and lower the toxic side effect of the medicine. It can inhibit the further development of osteoarthritis in early and middle phase, improve the environment inside the joint and promote the regeneration and repair of articular cartilage to reach the aim of cure osteoarthritis.

The invention relates to the technical field of calcium magnesium phosphate fertilizers, in particular to a traditional Chinese medicine residue biomass charcoal calcium magnesium phosphate fertilizer and a preparation method thereof. The preparation method comprises the following steps: pyrolyzing the traditional Chinese medicine residue at a high temperature to obtain traditional Chinese medicine residue biomass charcoal and a combustible gas; mixing the raw materials of the calcium magnesium phosphate fertilizer with the traditional Chinese medicine residue biomass charcoal of which the weight is 20-24% that of the gross raw materials of the compound fertilizer, fusing, pelleting, collecting the granular material; cooling the collected granular material at negative pressure and screening; performing capsulation, packaging for delivery to obtain the traditional Chinese medicine residue biomass charcoal calcium magnesium phosphate fertilizer. The traditional Chinese medicine residue biomass charcoal calcium magnesium phosphate fertilizer provided by the invention is rich in nutrient substances, the release of nutrient elements is coordinated and lasting, the nutrition use efficiency of the compound fertilizer is high, the soil can be effectively improved and fertilized, the utilization rate of the fertilizer is improved, the organic content of the soil is increased, the soil bulk density is reduced, the water and nutrient retention ability of the soil is improved, the crop growth is promoted, the crop yield is obviously improved, the crop quality is improved, and obvious economic benefits are achieved.

The invention discloses multifunctional non-woven fabric. The multifunctional non-woven fabric comprises an upper surface layer, a first middle layer, a second middle layer and a lower surface layer which are sequentially arranged from top to bottom; and the upper surface layer and the lower surface layer are made of coconut fibers and bamboo fibers, the first middle layer and the second middle layer are both made of jute fibers, a mould-proof traditional Chinese medicine is attached to the interior of the first middle layer, and an anti-microbial microcapsule is fixed to the second middle layer. The non-woven fabric is high in mould-proof capacity, durable in mould-proof capacity, capable of achieving active mould proofing, good in anti-microbial effect, environment-friendly, degradable, wide in application scope and easy and rapid in use.

The invention discloses a multilayer-shell wormlike mesoporous silica material and a preparation method thereof. The preparation method includes the steps of firstly, sequentially adding cetyltrimethyl ammonium bromide (CTAB) and didodecyldimethyl ammonium bromide (DDAB) into water, stirring for dissolving, adding beta-CD, and stirring to achieve complete dissolving; secondly, adding ammonia water into the solution obtained in the first step, evenly stirring, and adding tetraethyl orthosilicate (TEOS) to obtain suspension; thirdly, continuously performing stirring reaction on the suspension obtained in the second step to obtain a white sediment solution, and performing solvent thermal treatment on the white sediment solution; fourthly, filtering, washing, drying and grinding the white sediment solution after the solvent thermal treatment, and calcining to obtain multilayer-shell wormlike mesoporous silica. The multilayer-shell wormlike mesoporous silica has a multilayer-shell structure with 3-4 layers and large cavities and has evident advantages in fields such as drug controlled release.

The invention discloses a selenium-enriched ecological bacterial fertilizer and a preparation method thereof, and belongs to the technical field of preparation of fertilizers. The selenium-enriched ecological bacterial fertilizer comprises the following raw materials: urea, urea phosphate, diammonium phosphate, potassium nitrate, boric acid, selenium potassium phosphate, zinc sulfate, corn straws,a biogas slurry, an EM bacterial liquid, a straw fermentation inoculant, CM bacteria, soybean lecithin, lignin, sodium alginate, chitin, an EM bacterial liquid, mushroom residues, selenium humate, aselenite, brown sugar, selenohomocystine, beta-oligomeric acid, stearic acid, sodium hexametaphosphate, N,N-dimethylformamide, ammonium persulfate, selenium ore powder, itaconic acid, dibutylcarboxyltoluene, silane coupling agent KH-550, diethylenetriamine, attapulgite, o-phenyl benzoic acid and polyvinyl alcohol. The selenium-enriched ecological bacterial fertilizer provided by the invention isprepared by the steps of preparation of compound fertilizer particles, preparation of a film coating material liquid, coating of the fertilizer particles and drying; and the ecological bacterial fertilizer provided by the invention can improve the yield of crops and the content of a selenium element.

The invention discloses a making method of a collagen matrix cartilage repairing membrane. The method comprises the following steps: 1, shearing a raw material pork leg tendon, carrying out enzymatic hydrolysis, centrifuging, filtering, and dissolving to obtain an I type collagen solution; 2, neutralizing the I type collagen solution obtained in step 1 by using a 1M sodium bicarbonate solution; 3, pouring the neutralized I type collagen solution obtained in step 2 into a die, and drying at 30-40DEG C for 35-54h to form an I type collagen matrix membrane in the die; and 4, immersing the I type collagen matrix membrane obtained in step 3 in a 20-200[mu]g / mL parathyroid hormone related peptide solution, and incubating at 30-40DEG C for 0.5-2h to obtain the parathyroid hormone related peptide compounded I type collagen matrix cartilage repairing membrane. The invention also discloses the collagen matrix cartilage repairing membrane and an application thereof. The cartilage repairing membrane has certain adhesiveness to injured surfaces of cartilage, and is suitable for repairing cartilage injuries.

The invention discloses a humic-acid-containing diammonium phosphate neutralization and activation one-step production technology which particularly includes the steps: (1) primarily crushing and drying weathered coal and brown coal and then secondarily crushing the coal to obtain humic acid mineral powder (HA); (2) mixing and dispersing wet-process phosphoric acid and the humic acid mineral powder, pumping the wet-process phosphoric acid and the humic acid mineral powder to a tubular reactor, neutralizing and concentrating the wet-process phosphoric acid, the humic acid mineral powder and ammonia gas formed after liquid ammonia gasification, and then performing slurry-spraying granulation to obtain humic-acid-containing diammonium phosphate. The production technology can be directly implemented on an original production line without changing the technology or changing overall technological process, an adding method is simple and uniform, products are controllable, investment is less,the production process is clean, and the problem of blockage of a tubular reactor in a traditional technology is solved. The batching proportion of the humic acid mineral powder and the wet-process phosphoric acid can be adjusted, and the technology controllable products are uniform and stable. The humic acid content of the produced products can reach 1-3%, plant growths can be effectively stimulated, and agricultural sustainable development is facilitated.

The invention discloses a preparation technology of soil improvement fertilizer for three red pomelo cultivation, which belongs to the technical field of fertilizer preparation. The soil improvement fertilizer for three red pomelo cultivation is prepared from the following raw materials: ammonium carbonate, monoammonium phosphate, potassium chloride, peat soil, montmorillonite powder, zeolite powder, sepiolite powder, calcium magnesium phosphate fertilizer, compound bacteria, kieselguhr, itaconic acid, polyvinyl alcohol, potassium polyamino acid, polyoxyethylene and starch-grafted potassium acrylate. The soil improvement fertilizer for three red pomelo cultivation is prepared through the steps of preparing compound fertilizer particles, preparing enveloped feed liquid, enveloping fertilizer particles, drying and the like. The soil improvement fertilizer provided by the invention can be beneficial to improving the per mu yield of three red pomelo.

The invention relates to a straw fiber-based slow-release biological bacterial fertilizer and a preparation method, and belongs to the technical field of biological bacterial fertilizers. The biological bacterial fertilizer is obtained by using straw fiber and algal powder as main raw materials, adding medium and trace elements and functional microorganisms and fermenting. The straw fiber is loaded with a large amount of functional microorganisms, so that soil microecology is regulated and the soil structure is improved; high molecular components in the algal powder are chelated with the medium and trace elements to form sustained-release gel granules, so that moisture is retained and nutrients are slowly released. Through resource utilization of the straw fiber and the algal powder in thebiological bacterial fertilizer, preparation of a high-efficiency slow-release fertilizer is achieved; the biological bacterial fertilizer has significant regulating and promoting effects on soil improvement, soil fertility improvement and crop growth.

The invention discloses a welding tool storage box with anti-collision function. Both are provided with a first clamping slot. The welding tool storage box with anti-collision function utilizes the elastic force of the first buffer spring, and the buffer plate can move reasonably in the buffer cavity, so that the external force can be effectively slowed down, and the storage box can be effectively avoided. , to avoid damage to welding tools, good anti-collision performance, can stack the placement seat, can effectively protect the welding tools, more convenient to use, has a certain anti-slip performance, avoids the sliding of welding tools, and uses Due to the elastic force of the second buffer spring, the sealing plug can move up and down, thereby effectively extruding and protecting the placement seat, effectively ensuring the normal use of people, and the storage effect is good.

The invention discloses selenium-enriched ecological bacterial fertilizer. The selenium-enriched ecological bacterial fertilizer is prepared from paddy rice straws, biogas slurry, mushroom residues, compound bacteria, potassium selenite, brown sugar, ammonium carbonate, monoammonium phosphate, potassium chloride, selenium humate, selenium-substituted homocystine, selenium ore powder, itaconic acid, dibutyl carboxyl toluene, a silane coupling agent KH-57, pentamethyl diethylene triamine, o-phenyl benzoic acid, polyvinyl alcohol, attapulgite, soya lecithin, sodium alginate and chitin through compound fertilizer granule preparation, coating material liquid preparation, fertilizer granule coating and drying. The ecological bacterial fertilizer can improve the yield of Chinese cabbage and the content of selenium.