11 results about "Pine sawdust" patented technology

The invention belongs to the technical field of termite prevention and control, and discloses a termite trapping and killing agent and a preparation method thereof.The termite trapping and killing agent is prepared from, by weight, 25-30 parts of pine sawdust powder, 10-20 parts of dustpan, 8-12 parts of sugarcane powder, 4-6 parts of pine pollen, 6-10 parts of compound insecticide, 1-3 parts of pheromone sustained-release microcapsules, 15-25 parts of hydrogel cellulose composite carrier and 1-3 parts of hydrocarbon mixing agent; according to the termite trapping and killing agent, fipronil and hexaflumuron are compounded, the termite killing effect is improved by compounding two agents with completely different action mechanisms, and the discovery rate, the feeding rate and the agent transmission efficiency of termites can be remarkably improved by adding the pheromone sustained-release microcapsules, the hydrogel cellulose composite carrier and the hydrocarbon mixing agent; and finally, eradication prevention and control on the ant nests are achieved, the environmental adaptability is high, and the lasting period is longer.

The invention discloses a porous carbon composite material prepared through pyrolysis and an application method of the porous carbon composite material in an electrode, and belongs to the technical field of porous carbon composites.The method comprises the following steps that pine sawdust is prepared, a small amount of pine sawdust powder is taken and subjected to thermogravimetric analysis testing in the nitrogen atmosphere, and a thermogravimetric curve and a differential curve of the pine sawdust powder are obtained; determining a temperature interval corresponding to a pyrolysis weightlessness peak; based on a thermogravimetric analysis result, a water-soluble phenolic resin solution and a phosphoric acid solution are blended and mixed, then pine sawdust powder is soaked in the mixed solution, full stirring and ultrasonic treatment are conducted to enable phosphoric acid molecules to be evenly loaded, then drying is conducted, and a pine sawdust precursor pretreated with phosphoric acid is obtained; the problems of pyrolysis conflict, agglomeration and the like in a traditional process are solved, the uniformity, the conductivity and the structural stability of the composite material are improved, the performance consistency of batches is ensured, and the method is suitable for being applied to supercapacitor electrodes.

This invention discloses an intelligent cultivation device based on corn and pine sawdust fermentation medium, comprising a symmetrical mounting frame. A guide loop is provided on one side of the mounting frame, and several planting mechanisms are connected via the symmetrical guide loops. Each planting mechanism includes a horizontal plate, and a movable plate is vertically slidably connected to the inner cavity of the horizontal plate. An installation groove is provided on the upper part of the mounting frame near the guide loop, and an adjustment mechanism for adjusting the position of the horizontal plate and the movable plate is provided within the inner cavity of the installation groove. The mounting frame is equipped with an adjustment mechanism with an electric push rod. The horizontal movement of the drive plate and driven plate causes the rack to engage with the toothed ring of the positioning ring, rotating the entire planting mechanism 180°. Then, guided by a wedge block, the driven rod moves the movable plate vertically downward within the horizontal plate, allowing waste medium to fall onto the conveyor belt and be transported away. After the movable plate moves downward, it reassembles with the horizontal plate and side plates to form a supporting frame, facilitating quantitative feeding again.

The invention belongs to the technical field of waste wood chip derived carbon, and particularly relates to a wood-based porous carbon solar evaporator and a preparation method. The solar evaporator provided by the invention is mainly prepared from pine sawdust and carboxymethyl cellulose (CMC), and the material has excellent hydrophilicity, strong light absorption and rapid water delivery capacity. The evaporation rate under irradiation of one sun reaches 3.41 kg m <-2 > h <-1 >, and the evaporation efficiency is 93.49%. Even in a high-salt environment (20 wt% of NaCl solution), the evaporation rate can still reach 2.83 kg m <-2 > h <-1 >. Good evaporation performance is maintained in a high-salt environment, and excellent self-cleaning capability and long-term operation stability are achieved. And the preparation method is simple, convenient, economical and environment-friendly, and a new material with a wide prospect is developed for an efficient solar desalination and water purification technology.

The invention relates to the technical field of edible fungus cultivation, in particular to an external nutrient source for manually increasing the yield of dictyophora rubrovolvata and a use method of the external nutrient source. The special external nutrient source for dictyophora rubrovolvata cultivation is prepared by fermenting raw materials such as pine sawdust, bran, corn flour, turfy soil and trace elements before planting; when dictyophora rubrovolvata is planted, a certain proportion of external nutrient source is added after the fungus sticks are debagged, the pretreated external nutrient source can be quickly infected by dictyophora indusiata hyphae, and fermented pine sawdust has the characteristics of decomposition resistance and difficulty in generating diseases and pests, so that the nutrient source can be provided for fruiting of the dictyophora indusiata fungus sticks in the later period; according to the invention, the special external nutrient source for dictyophora rubrovolvata prepared by using pine wood which cannot be used on other edible mushrooms as a main raw material is provided, and the method for reducing the unit area cultivation cost of dictyophora rubrovolvata and increasing the yield of dictyophora rubrovolvata is provided.

This invention discloses a method for cultivating Ganoderma lucidum using pine sawdust as a substrate, belonging to the field of edible and medicinal fungi cultivation technology. This invention uses pine sawdust and decayed pine sawdust as the main cultivation materials, combined with rice bran and various nutrient supplements to prepare a special culture medium. The total triterpenoid content of the cultivated Ganoderma lucidum can reach up to 1.408%, which is 2.01 times that of conventional broadleaf tree sawdust culture medium and 2.56 times that of straw culture medium. This invention not only improves the medicinal quality of Ganoderma lucidum but also realizes the high-value utilization of agricultural and forestry waste such as pine and fir sawdust, alleviating the pressure of raw material shortage in the edible and medicinal fungi industry, reducing production costs, and is suitable for large-scale promotion and application.

The invention discloses a continuous cropping obstacle soil conditioner based on subcritical hydrothermal biomass liquid and application of the continuous cropping obstacle soil conditioner. The biomass liquid is prepared by taking pine sawdust as a raw material, drying and crushing the pine sawdust, mixing the crushed pine sawdust with water in proportion, and carrying out hydrothermal reaction at 180-300 DEG C. The bacterial strain is added into continuous cropping obstacle soil according to a specific proportion for culture, soil-borne pathogenic bacteria can be effectively inhibited, beneficial microorganisms are enriched, the synergistic effect of bacteriostasis and growth promotion is achieved by regulating and controlling the microbial community structure and activating related functional genes, and a new technical approach is provided for green prevention and control of soil-borne diseases.

The present application relates to the technical field of high-value chemical separation in plant source biological oil, and discloses a molecular distillation separation method of plant source biological oil, wherein pine sawdust of plant source is used as a biomass raw material to prepare biological oil; a component rich in levoglucosan is separated from the biological oil through a molecular distillation method; a functional monomer is pre-assembled with a template molecule levoglucosan through hydrogen bond action, using an alkenyl type multiple hydrogen bond grafting monomer and methyl methacrylate modified on a PVDF microfiltration membrane as a composite functional monomer; under the action of a crosslinking agent and an initiator, the polymerization monomer is polymerized on the PVDF microfiltration membrane to form a polymer; after removing the template molecule, a levoglucosan molecularly imprinted PVDF microfiltration membrane is prepared; the levoglucosan monomer is separated from the component rich in levoglucosan through the levoglucosan molecularly imprinted PVDF microfiltration membrane, and the purity of the obtained levoglucosan monomer is greater than or equal to 99.5%.

The invention relates to the technical field of fuels, and provides a high-calorific-value biomass pellet fuel and a preparation method thereof. The invention relates to a preparation method of a high-calorific-value biomass pellet fuel. The preparation method comprises the following steps: soaking pine sawdust and straws in a mixed solution of citric acid and hydrochloric acid, and then carrying out wet ball milling to obtain a main fuel base material; the preparation method comprises the following steps: carrying out dry mixing on a main fuel base material and biomass charcoal at 100-120rpm for 10-15min; preparing a coating solution from sodium lignin sulfonate, nano silicon dioxide, a silane coupling agent, polyethylene glycol 400, water and ethanol; extruding, discharging, drying, spraying a coating liquid, stirring, and coating, so as to obtain the product. According to the high-calorific-value biomass pellet fuel and the preparation method thereof, the problem that the biomass pellet fuel absorbs moisture in the storage process is solved, and the quality stability of the biomass pellet fuel is improved.

The application provides an artificial material substrate for cultivation of Phaeolus gilvus and a cultivation method, and belongs to the technical field of cultivation of Phaeolus gilvus. The artificial material substrate comprises the following raw materials in percentage by weight: pine sawdust 78-85%, bran 11-15%, corn flour 3-8%, and gypsum 0.5-2%. The cultivation method of Phaeolus gilvus comprises the following steps: preparation of cultivation species, mycelium culture, punching and germination culture, development of fruiting bodies and harvesting; the preparation of cultivation species is to inoculate liquid strains into the aforementioned artificial material substrate in a bag, and then to send the obtained inoculated bag into a constant-temperature incubation room for culture. The cultivation substrate can support the whole growth cycle of Phaeolus gilvus from liquid strains to mature fruiting bodies, significantly shortens the mycelium full-bag and fruiting body development cycle, and has high utilization efficiency. The cultivation method of Phaeolus gilvus based on the above cultivation substrate is simple in operation, stable in yield, easy to manage and replicable in process.

The invention discloses a process for cultivating sparassis crispa by using multiple layers of different culture materials, and relates to the technical field of edible fungus cultivation. The process comprises the following steps: preparing a culture material, preparing a cultivation fungus bottle or fungus bag, culturing the fungus bottle or fungus bag, performing primordium induction culture, and performing fruiting management. According to the method, the culture material is divided into the growth layer and the induction layer by adopting an innovative fungus bottle or fungus bag preparation mode, the induction layer is composed of the culture medium which is more favorable for inducing the formation of the sparassis crispa primordium, the growth layer is composed of the culture material such as pine sawdust which is commonly used for cultivation, and industrial cultivation of the sparassis crispa is realized in a bottle cultivation or bag cultivation mode. According to the cultivation method, the primordium is easy and fast to form and good in consistency, and the problems that hyphae are difficult to climb on the wall, the primordium is slow to form and the consistency is poor in an existing industrial cultivation mode can be effectively solved.