158 results about "Pyroligneous acid" patented technology

The invention discloses a large-scale pig breeding wastewater purification treatment system, and relates to the technical field of wastewater treatment.The large-scale pig breeding wastewater purification treatment system is characterized in that the ion concentration of anaerobic liquid is monitored through a multi-ion sensing array, and a multi-channel feeding system is controlled to synthesize customized struvite compound fertilizer; the AI prediction control unit predicts the optimal medicament dosage and realizes millisecond-level closed-loop regulation; the multi-dimensional synergistic biochemical treatment module comprises an A / O biochemical treatment unit and an electric field enhanced anaerobic ammonia oxidation reactor, the electric field enhanced anaerobic ammonia oxidation reactor applies a direct-current electric field through an electrode pair, and engineering conductive biochar is used as a carrier to accelerate microbial metabolism; the sludge low-temperature pyrolysis self-consistent circulation module is used for pyrolyzing and converting residual sludge into biochar, biofuel and wood vinegar, and the biochar activation treatment unit is used for preparing engineering conductive biochar and forming a substance closed loop through a self-consistent circulation conveying system; and the digital twinning intelligent management and control platform realizes intelligent management and control of the system.

According to the microbial composite soil conditioner and the preparation method thereof, decomposition of organic matters in soil can be promoted through multiple microorganisms in the microbial composite soil conditioner, and the air permeability and the water-retaining property of the soil are improved. Meanwhile, the zeolite powder and the rice hull powder ash can improve the pore structure of the soil and improve the drainage capacity and the air permeability of the soil, so that the growth environment of the plant root system is optimized. The decomposed organic fertilizer and the edible fungus residue organic matter are rich in nutrient elements of nitrogen, phosphorus and potassium, and can provide continuous and stable nutrient supply for crops. In addition, the amino acid stock solution, the pyroligneous liquor and the molasses liquor contain various trace elements and bioactive substances, so that the disease resistance and the growth vitality of crops can be enhanced. Due to the improvement of the soil structure, the improvement of fertility and the enhancement of microbial activity, crops can better absorb nutrients and moisture, the occurrence of diseases and pests is reduced, and the increase of the crop yield and the crop quality are effectively improved.

The utility model discloses a bitter apricot kernel wastewater treatment device which comprises an equipment shell, a water inlet pipe and a water outlet pipe are respectively arranged on the equipment shell, and a wastewater treatment assembly communicated with the water inlet pipe and the water outlet pipe is arranged in the equipment shell; the wastewater treatment assembly comprises a plurality of groups of apricot shell adsorption tanks which are connected in series, apricot shells are filled in the apricot shell adsorption tanks and are used as adsorbents, the apricot shells adsorbing hydrocyanic acid are subjected to carbonization treatment, and the hydrocyanic acid is destroyed in the carbonization treatment process and forms a part of pyroligneous liquor; the hydrofluoric acid on-line detector is arranged at the downstream of the apricot shell adsorption tank and is used for detecting the content of hydrofluoric acid in the treated wastewater; the control valve group is connected to the water inlet pipelines and the water outlet pipelines of the apricot shell adsorption tanks and is used for controlling the working states of the multiple groups of apricot shell adsorption tanks. The device is efficient in use, easy to operate, low in maintenance cost, safe and reliable, hydrofluoric acid is eliminated in the carbonization process, waste water is recycled, and water resources are saved.

The invention provides an efficient breeding method of cremastra appendiculata, and relates to the technical field of cremastra appendiculata breeding. The efficient breeding method comprises the steps of soil preparation and land selection, strain laying, wood laying, gap filling, seed dressing, sowing, shading and management. According to the method, the specific method is adjusted, humus soil containing a compound microbial agent is adopted to fill gaps among wood, then sowing is conducted, the germination rate of seeds is increased, sawdust, perlite, coco coir, decomposed organic fertilizer, bamboo charcoal powder and pyroligneous liquor are used for seed dressing before sowing, the air permeability of a matrix is improved, seeds are prevented from being rotten due to accumulated water, and breeding of pathogenic bacteria is inhibited; the water-retaining property of the substrate is increased; and symbiotic bacteria planting and seed metabolism are promoted. The foliar fertilizer containing the garlic extracting solution, the onion leaching solution, the monopotassium phosphate, the boric acid and the urea is adopted, elements needed by growth of the rhododendron simsii are provided, the strong insecticidal and bactericidal effects are achieved, and therefore the incidence rate of diseases and pests is reduced, and the seedling survival rate and the breeding efficiency of the rhododendron simsii are improved.

The invention relates to the technical field of modified biochar, in particular to wood vinegar modified biochar, a saline-alkali soil modifier containing the wood vinegar modified biochar and a preparation method of the wood vinegar modified biochar. The invention provides a preparation method of wood vinegar modified biochar, which comprises the following steps: cleaning and drying biochar, adding the biochar into wood vinegar, stirring at room temperature for 0.5-1 hour, adding a potassium permanganate solution, continuously stirring for 2.5-4 hours, carrying out solid-liquid separation, and collecting solids to obtain the wood vinegar modified biochar. The invention further provides the wood vinegar modified biochar, a saline-alkali soil modifier containing the wood vinegar modified biochar and a preparation method of the wood vinegar modified biochar. The saline-alkali soil improver has excellent sodium ion adsorption capacity and plant growth promoting capacity, inorganic acid, organic acid or various microbial strains do not need to be used in the preparation process, the preparation method is simple and feasible, and the saline-alkali soil improver can be widely applied to development and utilization of saline-alkali soil.

The invention relates to preparation and technical methods of a composite saline soil modifier. The modifier is prepared from 30-40 parts of charcoal, 8-10 parts of oxalic acid, 15-20 parts of desulfurized gypsum, 3-6 parts of wood vinegar, 1-2 parts of microbial agent fermentation liquor and 30-40 parts of other auxiliary components. Wherein the microbial agent fermentation liquor is prepared by fermenting bacillus subtilis, the biochar is prepared by pyrolyzing rice husk at 600 DEG C for 2 hours, and the desulfurized gypsum is prepared by wet desulfurization; the preparation method of the modifier comprises the following steps: uniformly mixing the raw materials in proportion, drying until the water content is lower than 10%, crushing and packaging. During application, the fertilizer is uniformly applied to salinized soil according to the dosage of 100 kg / mu, the ploughing depth is 20-30 cm, and the soil is kept moist. Experimental results show that the modifier can significantly reduce the pH value of soil, increase the number of water-stable aggregates, increase the water retention capacity of soil, promote the growth of soil microorganisms and enhance the salt resistance of crops, and has a significant improvement effect on mild to moderate salinized soil.

To provide a method for producing purified wood vinegar.SOLUTION: A method for producing purified wood vinegar comprises: a first step of obtaining an upper layer liquid by contacting crude wood vinegar with a chlorine-containing organic solvent and performing liquid-liquid separation; and a second step of removing the dissolved chlorine-containing organic solvent from the upper layer liquid.SELECTED DRAWING: None

The invention discloses a construction method for forming a modified aggregate based on wood vinegar and charcoal mixing, and belongs to the technical field of carbon sequestration and agricultural soil carbon sequestration. The method mainly comprises the following steps: mixing biochar, organic acid and mineral powder in proportion, adding water, granulating by using a stirrer to form an initial aggregate, stabilizing the initial aggregate through an aging maintenance process, and finally applying the obtained high-stability aggregate to a soil layer. The core of the method is that large-particle, porous and stable aggregates are artificially prefabricated, so that the physical and chemical stability of the biochar in the soil is greatly enhanced, and the decomposition and migration of the biochar are effectively inhibited. According to the method, long-term and efficient storage of atmospheric carbon dioxide is achieved, the granular structure and fertility of the sandy loam soil can be remarkably improved, and the method has the double benefits of soil carbon sequestration and water and fertilizer retention improvement.

The invention relates to the field of breeding wastewater treatment, and discloses N-P-O-metal biochar and a biogas slurry resourceful treatment system and method.The preparation method of the N-P-O-metal biochar comprises the steps that straw, a phosphoric acid solution, wood vinegar and biogas slurry are mixed and subjected to a hydrothermal reaction, and hydrothermal carbon is obtained; dipping the hydrothermal carbon in an activating agent solution, and then sequentially activating, washing and drying to obtain one-step activated carbon; soaking and activating the one-step activated carbon in a heteroatom doping agent, and performing oxidation treatment under oxygen-containing gas to obtain N-P-O activated carbon; the preparation method comprises the following steps: mixing a ferric salt solution and a magnesium salt solution to obtain a mixed solution, putting N-P-O activated carbon into the mixed solution, stirring and dipping, and then performing pyrolysis to obtain the N-P-O-metal biochar. The N-P-O-metal biochar disclosed by the invention can be used for treating a clear biogas slurry obtained by filtration through a capacitive deionization device, and efficient enrichment of nutritional ingredients is realized while pollutants are effectively degraded.

There is provided a method for production of an impregnated biochar composition for use in agriculture, wherein the method comprises the following steps: a) providing biomass; b) treating the biomass at a temperature of ≥ 300 °C to form biochar; c) impregnating the formed biochar with pyroligneous acid so that an impregnated biochar composition is formed, wherein the composition comprises: - 10-60 wt% pyroligneous acid based on the dry content of the composition; and - 40-90 wt% biochar based on the dry content of the composition.

The application discloses a method for preparing activated carbon precursor by removing biomass ash through wood vinegar and hydrothermal carbonization. Biomass raw materials are subjected to hydrothermal carbonization in a wood vinegar liquid medium to obtain biomass-based activated carbon precursor. The application innovatively utilizes the effective organic acid components in the acidic wood vinegar and combines hydrothermal carbonization to avoid the use of strong acid and strong base and pollution caused in the washing process. The method is easy to realize industrial popularization and application and is environment-friendly without significantly increasing the process cost. In addition, the method fully utilizes the acidic liquid byproduct, wood vinegar, in the process of preparing biochar through biomass pyrolysis, and realizes high-value comprehensive utilization of the biomass pyrolysis product on the basis of preparing the biomass-based activated carbon precursor.

The invention relates to the technical field of soil improvement, and particularly discloses a soil nitrogen stable conditioner as well as a preparation method and application thereof, and the soil nitrogen stable conditioner is prepared from the following components in parts by weight: 30-50 parts of pyroligneous acidified biochar, 35-45 parts of organic fertilizer, 10-15 parts of humic acid, 1-5 parts of microelement fertilizer and 1-2 parts of sulfur powder. The wood vinegar acidified charcoal-based soil nitrogen stable conditioner provided by the invention achieves the function of improving the utilization efficiency of a nitrogen fertilizer by inhibiting the activity of soil urease and reducing the decomposition speed of the nitrogen fertilizer and the mineralization and nitration speed of soil nitrogen.

The invention discloses a preparation method and device of a green biochar-based slow release fertilizer, and the preparation method comprises the following steps: carrying out pyrolysis carbonization on biomass to obtain biochar and byproducts, and treating the byproducts to obtain wood vinegar, heavy oil and non-condensable gas; mixing biochar with wood vinegar, and carrying out upgrading modification to obtain modified biochar; the modified biochar and a compound fertilizer are mixed, adsorbed and dried to obtain a fertilizer, and the fertilizer and heavy oil are subjected to low-temperature forming treatment according to a certain proportion to obtain the green biochar-based slow release fertilizer. Wherein the non-condensable gas is used for supplying heat to the low-temperature forming process. By utilizing the surface modification effect of the biomass pyrolysis byproduct wood vinegar and the polycondensation carbonization effect of the heavy oil, the wood vinegar is used as a green modifier, the heavy oil is used as a binder, the green preparation method of the carbon-based slow-release fertilizer is innovatively provided, secondary utilization of the byproduct is realized, environmental pollution is reduced, and the environment-friendly effect is achieved. And economic and environment-friendly benefits are obviously obtained.

The invention provides a microbial deodorant and a production process thereof, and relates to the technical field of deodorants. The microbial deodorant is prepared from the following raw materials: 40 to 45 parts of a pyroligneous liquor-ferrous citrate compound, 7 to 10 parts of a lactobacillus plantarum microbial agent, 6 to 8 parts of a lactobacillus acidophilus microbial agent, 3 to 5 parts of a bacillus licheniformis microbial agent, 2 to 3 parts of a clostridium butyricum microbial agent and 19 to 24 parts of carrageenan nano microspheres. The pyroligneous liquor-ferrous citrate compound is prepared by the following steps: adding NaHCO3 into pyroligneous liquor to adjust the pH value to be weakly acidic to obtain pretreated pyroligneous liquor, then adding a ferrous citrate solution into the pretreated pyroligneous liquor, and reacting to obtain the pyroligneous liquor-ferrous citrate compound; the carrageenan nano-microsphere is prepared from the following raw material components: sophora flower polysaccharide, carrageenan, an emulsifier, paraffin and CaCl2. The microbial deodorant disclosed by the invention has excellent deodorization performance and relatively high stability.

The invention discloses a preparation method of an environment-friendly acetate snow-melting agent based on model predictive regulation and control. According to the method, the performance of the snow-melting agent is precisely optimized through the quantitative synergistic effect, precise control over the cost is achieved, excessive addition of additives is avoided, a core theoretical tool is provided for scientific proportioning, dynamic regulation and control and compliance of the environment-friendly snow-melting agent, and the research and development efficiency and engineering applicability are remarkably improved. The snow-melting agent prepared by adopting the method disclosed by the invention meets the core requirements of environmental protection, safety and economy on the snow-melting agent in the DB11 / T 161-2024 standard in Beijing, and meanwhile, the pyrolytic product pyroligneous liquor of garden wastes is taken as one of the components for preparing the snow-melting agent, so that the cyclic utilization of resources is realized, the corrosion to roads can be effectively inhibited, the influence on plants can be reduced, and the snow-melting agent has the advantages of environmental protection, safety and economy. The environmental pollution degree is reduced, and the differentiated requirements of snow sweeping and ice shoveling in winter can be met.

The invention discloses a soil conditioner for an acidified sugarcane field. The soil conditioner is prepared from the following components in parts by weight: 40-70 parts of waste papermaking pulp, 0.03-0.05 part of a fermented complex microbial inoculant, 10-20 parts of mineral clay, 20-30 parts of organic matter fertilizer, 10-20 parts of inorganic fertilizer and 3-5 parts of wood vinegar, the preparation method of the soil conditioner comprises the following steps: adding the fermentation complex microbial inoculant into the organic matter fertilizer, uniformly stirring, stacking in a reaction tank, and turning 2-4 times every day when the placement temperature reaches 60-65 DEG C for 10-20 days; and then adding the waste papermaking pulp, the inorganic fertilizer, the mineral clay and the pyroligneous liquor, and uniformly stirring to obtain the soil conditioner. The method can solve the problem of soil acidification of a sugarcane field, reduce hardening of acidified soil, improve the air permeability of the soil, improve the microbial activity and reduce aluminum and manganese toxicity, thereby improving the yield and quality of sugarcanes.

The invention relates to the technical field of medicines, in particular to a wood vinegar skin care composition for damp-heat constitution and application of the wood vinegar skin care composition. The medicine is prepared from the following components: wood vinegar, cortex phellodendri, herba violae, herba portulacae, herba houttuyniae, amomum tsao-ko kernels, pine needles, birch bark, fructus evodiae and radix clematidis. When the wood vinegar skin care composition provided by the invention is used for treating damp-heat constitution acne patients, the cure rate reaches 92% or above, and the acne does not relapse within 6 months. Moreover, the acne is deeply cleaned and removed, scars are repaired, smooth and clean skin is remodeled, and the acne treatment effect on damp-heat constitution caused whelks is remarkable.

This invention discloses a slow-release fertilizer suitable for lateritic soils in Hainan, comprising a fertilizer core and a coating layer; the fertilizer core comprises the following raw materials in parts by weight: 10-20 parts isobutylene diurea, 1-3 parts 3,4-dimethyl-1H-pyrazole dihydrogen phosphate, 1-3 parts dicyandiamide DCD, 20-30 parts humic acid, and 30-50 parts organic fertilizer; the coating layer comprises the following raw materials in parts by weight: 5-10 parts natural nanotube halloysite, 3-5 parts bentonite, 5-10 parts cyclodextrin, 1-3 parts polyglutamic acid, 1-3 parts wood vinegar, and 5-10 parts polyacrylamide. The isobutylene diurea, humic acid, and organic fertilizer of this invention can effectively replenish organic matter and nitrogen in iron-aluminate soil, maintain soil nitrogen levels, and effectively control the conversion of ammonium nitrogen to nitrate nitrogen in lateritic soil, thereby reducing nitrogen loss and achieving a stable supply of nitrogen. In addition, polyglutamic acid and polyacrylamide have strong water retention capacity, and the fertilizer core is coated with a coating layer to achieve slow release and water retention.

The invention belongs to the technical field of soil improvement, particularly relates to a compound microorganism saline-alkali soil conditioner as well as a preparation method and application thereof, and aims at solving the problems that the existing soil conditioner mostly adopts a single strain or a simple combination, is difficult to colonize in a harsh saline-alkali environment, has a single function, cannot systematically improve the physical and chemical properties of soil, is slow in organic material decomposition and is difficult to promote. In order to solve the problems that in the prior art, the soil conditioner is not durable in effect due to the fact that the soil conditioner is prone to failure due to saline-alkali stress, the following scheme is provided: the soil conditioner comprises the following raw materials in parts by weight: 5-10 parts of bacillus; by using bacillus, streptomyces, saccharomycetes, actinomycetes, nitrogen-fixing bacteria, phosphate bacteria, potassium bacteria, pyroligneous liquor, seaweed extract, amino acid chelate, potassium fulvate, citric acid and monopotassium phosphate, the content of organic matters in soil can be effectively increased, the aggregate structure of the soil is improved, a more lasting soil improvement effect is achieved, and the soil conditioner has a good application prospect. And the use frequency and cost of the modifier are reduced.

The present invention discloses a method and system for preparing synthesis gas from biomass, comprising the following steps: (1) uniformly mixing a first catalyst, wood vinegar and water to obtain a pretreatment solution; (2) adding a biomass raw material to the pretreatment solution for impregnation and drying to obtain a pretreated biomass raw material; (3) the pretreated biomass raw material enters a carbonization reactor for carbonization reaction; (4) the solid material obtained after the carbonization reaction is uniformly mixed with a second catalyst and then enters a gasification reactor for gasification reaction to obtain synthesis gas. The present invention uses biomass as a raw material to prepare a synthesis gas product through a carbonization-gasification combined process, and has the advantages of simple process, high synthesis gas yield and high energy utilization.

The invention discloses a tank type fermentation process capable of realizing collaborative emission reduction of NH3, N2O and CH4. The tank type fermentation process comprises the following steps: S1, pretreating raw materials; s2, material introduction; s3, supplementing materials; and S4, continuous fermentation. The process has the advantages of obvious environmental benefit, realization of collaborative emission reduction of greenhouse gas and odor, final reduction of the compost load, high resource utilization efficiency, realization of closed-loop circulation of water and fertilizer, reuse of nutrient-rich leachate as a nitrogen fixation carrier, realization of zero liquid discharge and nutrient in-situ recovery, increase of the total nutrient content of a compost product, and realization of environmental protection and environmental protection. The nitrogen loss is greatly reduced, and beneficial components such as zeolite and pyroligneous liquor are added, so that the content of organic matters and nutrients of the finished compost is high, the water and fertilizer retention capacity is high, essential elements for promoting plant growth are contained, and the commodity value is remarkably improved.

The invention discloses an operation technology for coupling garden waste recycling and waste incineration. The operation technology comprises the following steps that S1, garden waste is divided into high-quality garden waste and low-quality garden waste; s2, the high-quality garden waste enters a drying machine, a pyrolysis machine and a condenser, and pyrolytic carbon, pyroligneous liquor and non-condensable gas are generated; s3, after the low-quality garden waste is dried, granulation treatment is conducted through a granulator; s4, the household garbage and the non-condensable gas enter an incinerator to be incinerated, and high-temperature flue gas is generated; s5, the hot flue gas enters a second flue and a pyrolysis machine and then enters a third flue to be converged with the main flue gas; s6, the hot flue gas is conveyed to a drying machine through an induced draft fan to be dried; and S7, the flue gas obtained after heat exchange is sent to a suction inlet of an induced draft fan, mixed in the induced draft fan and then discharged to the atmosphere. The waste heat and the heat value of the pyrolysis gas are utilized, the generating capacity of the incineration system is effectively improved while the garden waste is recycled, and the construction cost and the operation cost of the garden waste recycling system can be reduced by utilizing hardware of the incinerator and the flue gas purification system.

The present application relates to the field of agricultural soil improvement and orchard fertilization technology, and discloses a kind of southern red soil area orchard annual green manure covering and carbon-increasing quality improving method, including that mature livestock and poultry manure is mixed with industrial grade calcium-magnesium phosphate fertilizer and applied to surface soil before green manure sowing;Sowing Indian cowpea in spring, mixed sowing Chinese milk vetch and field radish in autumn;Green manure of leguminous plants is mowed in situ when it is in full bloom to initial pod stage to make it flat;Uniformly spray directional wood-decay fungi complex liquid to the surface of green manure;Use pyroligneous acid to wet crushed dry crop straw, cover micro-acid straw on the surface of green manure;Mechanically subsoil in the following autumn, and inject PAM composite biomass charcoal suspension into the bottom of subsoiling groove simultaneously.The present application neutralizes and intercepts ammonia gas released by green manure to block nitrogen volatilization by using micro-acid straw, accelerates the degradation of macromolecular lignocellulose by using wood-decay fungi, and constructs deep stable carbon sink by combining with deep injection of porous carbon suspension, thereby effectively improving the overall carbon pool capacity of red soil profile.

The invention provides a saline-alkali soil composite modifier and application thereof in saline-alkali soil improvement, and the saline-alkali soil composite modifier is characterized by comprising pyroligneous modified biochar, pyroligneous, a functional microbial agent, polymaleic anhydride, humic acid and dodecyl dimethyl benzyl ammonium bromide, nano manganese dioxide particles are loaded on the surface and in pores of the wood vinegar modified charcoal. The saline-alkali soil composite modifier can solve the problems of high saline-alkali soil improvement cost, poor effect, easy repetition and the like, is simple in process, low in cost and remarkable in improvement effect, has good economic benefits, ecological benefits and social benefits, and is suitable for large-area popularization and application.

The invention relates to the technical field of functional fertilizers, and discloses a heavy metal and insect disease double-effect regulation type organic fertilizer and a preparation process thereof, the fertilizer is a particle with a three-layer structure of core-inner layer coating-outer layer coating; the core is prepared from a composite passivation functional body, an organic nutrition matrix and a binder; the composite passivation functional body is a flavone-modified functional biological porous carrier loaded with strontium ion-doped nano-hydroxyapatite, and is used for fixing soil heavy metals and regulating and controlling rhizosphere micro-ecology; the inner-layer coating is prepared from wood vinegar, the outer-layer coating is prepared from chitosan oligosaccharide and sodium alginate, and the layered structure realizes sequential release of immune induction substances and synergistically induces plant resistance. Through specific structural design and component synergy, triple effects of heavy metal fixation, rhizosphere micro-ecological regulation and control and plant disease and insect pest induced resistance are achieved, and the effect is definite.

A method of controlling odor where the odor is generated by sources like decomposing organic matter in landfills or other sources is provided. A wood vinegar-containing solution, adjusted for the source of the odor, can be applied to the source of the odor. A method of improving the rate and completeness of settling of fine clays from oil sands tailings is also provided. Additional disclosure of a method of controlling algae bloom in a body of water is disclosed. The method includes the steps of providing a wood vinegar-containing solution, adjusting the composition of the wood vinegar-containing solution according to the states of both the body of water and the algae, respectively, then applying the wood vinegar-containing solution to the surface of a body of water, and inhibiting growth of the algae responsible for the algae bloom.

The application discloses corn-highland straw wood vinegar and a preparation method and application thereof, and belongs to the technical field of pesticide synergists, and the preparation method comprises the following steps: (1) corn straw and highland straw are mixed, crushed, dried, preheated and cracked, and then subjected to solid decomposition at a temperature of 300-600 DEG C to obtain a crude wood vinegar; (2) the crude wood vinegar is repeatedly stored by freezing and thawing for 6 months, then filtered and distilled, the light components are reserved, and the heavy components are removed; (3) the light components are extracted by butyl triphosphate and diethyl ether in sequence, then the extract is subjected to molecular distillation to evaporate the solvent, and the wood vinegar is obtained. The application further discloses the wood vinegar prepared by the preparation method and application of the wood vinegar in a pesticide synergist. The wood vinegar obtained by the application mainly plays a stomach poison, contact killing and avoidance role on the target, and can provide a further idea for developing a low-toxicity and environment-friendly plant source compound pesticide.

The invention relates to the technical field of charcoal preparation, in particular to charcoal dry distillation equipment, which comprises a dry distillation cellar body, a main flue, a gas-liquid separator, a combustible gas check valve, a combustible gas recovery pipe and a wood vinegar recovery pipe, a plurality of dry distillation tank bodies are arranged in the dry distillation cellar body, a cover body is arranged at the top of each dry distillation tank body, and a gas outlet is formed in the top of each dry distillation tank body. A water sealing groove is formed in the joint of the dry distillation tank body and the cover body, one end of the main flue is communicated with a gas inlet of the gas-liquid separator, the other end of the main flue penetrates through the cover body and is communicated with the interior of the dry distillation tank body, a gas outlet of the gas-liquid separator is communicated with a gas inlet of the combustible gas check valve through a first auxiliary flue, and a gas outlet of the combustible gas check valve is communicated with a gas outlet of the gas-liquid separator through a second auxiliary flue. A gas outlet of the combustible gas check valve is communicated with the combustible gas recovery pipe through a second auxiliary flue, the bottom of the gas-liquid separator and the bottom of the combustible gas check valve are both communicated with the wood vinegar recovery pipe through collecting pipes, and cooling devices are arranged outside the main flue, the gas-liquid separator and the combustible gas check valve.

This invention discloses an apparatus and method for preparing metallurgical coke based on the comprehensive utilization of biomass, relating to the technical field of biomass pyrolysis and its energy conversion equipment. The apparatus includes a biomass coke oven, a fluidized bed pyrolysis furnace, a volatilization flue, a cyclone separator, a first condensation separation unit, a second condensation separation unit, an acid washing tank, a drying furnace, a mixing granulator, and a quenching tower. The acid washing tank is used to mix reheated char and wood vinegar to obtain acid-washed biochar; the drying furnace is used to dry the acid-washed biochar; the mixing granulator is used to mix and granulate tar and the dried acid-washed biochar to obtain granular biochar; the volatilization flue is used to volatilize the granular biochar to obtain semi-coke; and the biochar coking chamber is used to coke the semi-coke to obtain bio-coke. This apparatus and method improve the production efficiency and energy utilization efficiency of metallurgical coke, effectively reducing the overall production cost of metallurgical coke.

The invention discloses a special bio-organic fertilizer for blueberries and a preparation method of the special bio-organic fertilizer, and belongs to the technical field of bio-organic fertilizers. The biological organic fertilizer is prepared from turfy soil, a synergist, pyroligneous liquor, furfural residues, corn straw, phosphoric acid, a modifier, a microbial agent, ferrous sulfate, pine needle leaves, pig manure and EM bacterial liquid. The bio-organic fertilizer is composed of two parts, namely, bio-organic fertilizer particles special for blueberries and a solution. The special bio-organic fertilizer solution for the blueberries is synergized through sodium lignosulphonate and potassium humate with the mass ratio of 1: 1, and the acid soil environment around the roots is improved; activated biochar in the special bio-organic fertilizer particles for blueberries is modified by tea polyphenol and sodium alpha-olefin sulfonate in a mass ratio of 1: 1 and then is grafted with a strong acidic phosphate radical functional group, so that the water retention capacity is improved, and the activated biochar and various substances such as a microbial agent, fermented organic nutrients, turfy soil and ferrous ions play a synergistic role; the blueberry planting soil is improved.