160results about How to "Improve the carbonization effect" patented technology

The invention discloses a charcoal fertilizer, prepared from the following raw materials in percentage by weight: 10-50% of charcoal powder, 20-70% of compound fertilizer and 5-30% of adjuvant, wherein the charcoal powder is obtained by putting straws in a carbonization furnace for dehydration and deoxygenation treatment and smashing the straws to a particle size of not more than 0.5mm after high-temperature carbonization. A preparation method of the charcoal fertilizer comprises the following steps: feeding the straws into the carbonization furnace; performing the dehydration and deoxygenation treatment for 1-2 hours at a temperature of 100-250 DEG C; carbonizing the straws at a high temperature of 600-700 DEG C for 30-240min; cooling the carbonized product and then smashing the carbonized product to form the charcoal powder with the particle size of not more than 0.5mm; uniformly mixing the charcoal powder, the compound fertilizer and the adjuvant in proportion to obtain a mixture and then pelleting the mixture to obtain pellets; cooling and screening the pellets to a particle size of 1.5-4.75mm; packing the screened pellets. The charcoal fertilizer disclosed by the invention has the advantages of an extensive source of the raw material straws, a good carbonization effect, high carbon content, conformity with the concept of environmental protection, simplicity in preparation technique, low energy consumption, high product strength and capability of processing the raw materials in a centralized manner and obviously increasing the utilization rate and quality stability of the fertilizer. The invention further discloses an application of the charcoal fertilizer in crop growth.

The invention provides a high-temperature physical carbonization method of a carbonization furnace and wood. The carbide furnace comprises a horizontal carbonization tank, wherein one end of the horizontal carbonization tank is provided with an end socket, the other end of the horizontal carbonization tank is provided with a tank cover, the periphery in the carbonization tank is provided with a heat-conducting pipe through which heat-conducting media flow, the heat-conducting pipe is communicated with a heat-conducting oil feeding device arranged outside, and the heat-conducting oil feeding device is composed of a heat-conducting oil pump and a heat-conducting oil heater; the middle of the carbonization tank is provided with a lace bar frame used for containing the wood; a vacuum pumping machine connected with the carbonization tank through a vacuum pumping pipe is arranged outside the carbonization tank; the carbonization tank is connected with an external steam generating and feeding device through a steam connection pipe; the carbonization tank is further provided with a safe valve, a pressure gage and a wood still gas releasing pipe with a switch valve. The high-temperature physical carbonization method comprises the steps that (a) the wood is placed in the furnace; (b) a steam valve is opened for humidification; (c) vacuum pumping and drying are conducted; (d) temperature is increased and carbonization is conducted; (e) carbonized wood is manufactured after the temperature is decreased and preserving is conducted. The high-temperature physical carbonization method has the advantages that the used carbonization furnace is simple in structure, safe to operate and use, and convenient and reliable to use, the carbonization process is simple, the carbonization effect is good, and a use range of the carbonized wood is enlarged.

The invention discloses a preparation method of a biomass carbonization molding material. The preparation method successively comprises the following steps: 1) crushing natural biomass materials so as to obtain powder of which the sieving rate is equal to or larger than 100 meshes; 2) adding clay to the powder, uniformly mixing the clay and the powder so as to obtain a mixed material, wherein the powder accounts for 10-45% of the total weight of the mixed material, and the clay accounts for 55-90% of the total weight of the mixed material, adding water accounting for 5-30% of total weight of the mixed material to the mixed material, and mixing and stirring the mixed material with the water; 3) injecting the obtained mixture in a mold to perform compression molding, after demolding, drying the demolded object until the moisture content is equal to or smaller than 8%, performing smoldering treatment under 800-1300 DEG C and the anoxic condition of sealing for 0.5-10 hours so as to obtain the biomass carbonization molding material. The carbonization molding material prepared by adopting the preparation method disclosed by the invention not only has good mechanical strength, but also has the characteristics of being green and environment-friendly, capable of purifying air/water quality and the like, and adsorbing harmful substances in the air/water.

The invention discloses a carbonizing tank with an atomizing device for a soda water machine, which comprises a tank body with an opening on the upper portion. A combined valve is disposed at the opening of the tank body and communicated with a spray nozzle and a water outlet tube, a water baffle plate is disposed in a tube body, the inside of the tank body is divided into an upper space and a lower space by the water baffle plate, the upper space is used for holding carbon dioxide gas, the lower space is used for holding water, an overflow channel is arranged between the upper space and the lower space, and a plate surface of the water baffle plate faces to a water outlet of the spray nozzle. Compared with the prior art, the carbonizing tank has the advantages that contact time of the water and the CO2 is effectively prolonged, contact area is large, and a carbonizing effect is obvious; due to the spray nozzle, water flow is high, and water injection time is short; and furthermore, water columns jetted out via the spray nozzle are atomized when impacting onto the baffle plate, and drop on the water baffle plate to overflow downwards after being effectively combined with the CO2 to be carbonized, the problem that high-speed non-carbonized water directly impacts carbonized water at the bottom can be avoided effectively, and the carbonizing effect of bottom outflow water is guaranteed.

The invention discloses a method for producing controllable-particle-size calcium carbonate by continuous carbonization. A water ring air compressor, a primary carbonization tower, a gas distributor, a primary carbonization stirring device, a gas storage tank, a secondary carbonization tower, a secondary carbonization stirring device, a circulating emulsification pump, a calcium hydroxide storage tank, a venturi ejector and the like are applied. The method includes specific operation steps of primary carbonization, circulating emulsification, CO2 gas suction, calcium hydroxide slurry feeding and secondary circulating carbonization. The particle size of calcium carbonate prepared according to the method can be controlled in a range of 80-200nm, and a product is uniform in crystalline form, regularly cubic in morphology, small in agglomerated particle quantity, high in dispersity, narrow in particle size distribution and low in oil absorption value.

The present invention belongs to the technical field of biomass carbon materials, and relates to a lignin porous carbon nanosheet, a preparation method therefor, and an application thereof in supercapacitor electrode materials. The method of the present invention performs layer-by-layer self-assembly of sulfonated lignin and oxalate in a selective solvent to prepare a layer-by-layer self-assembled lignin/oxalate composite, which is then carbonized and pickled to obtain the lignin porous carbon nanosheets. The lignin porous carbon nanosheets prepared by the above method of the present invention have a specific surface area of 200-1500 m²/g, a micropore specific surface area of 100-500 m²/g, a mesoporous specific surface area of 100-1000 m²/g, a pore diameter of 0.5-30 nm, and a pore volume of 0.5-1.5 cm³/g; they can be applied to supercapacitor electrode materials, showing higher specific capacitance and excellent rate performance (with a specific capacitance retention rate of 76.6%), having good potential application value.

A wood carbonization treatment method comprises the following steps: (1) stacking wood in a carbonization box to carry out balanced water content treatment, wherein the temperature in the carbonization box is 60-120 DEG C, the humidity is 100% RH, the working time is 96 hours, and the temperature raises in stages; (2) drying the wood, wherein the temperature in the carbonization box is 100-120 DEGC, the humidity is 100-20% RH, humidity gradient is decreased, and the working time is 72 hours; (3) carbonizing the wood, and raising the carbonizing temperature in the carbonization box from 120 DEG C to 190-220 DEG C, wherein 10 DEG C is raised every 2 hours and the carbonization speed is 10 mm/hour; and (4) after the carbonization treatment is finished, adding steam to humidify, so that the ambient temperature in the carbonization box is gradually reduced to 60 DEG C from above 150 DEG C; and when the temperature of the carbonization box is close to the outdoor temperature, taking out thewood. According to the method, the proportion of hot air to water vapor in warm and wet airflow is adjusted to achieve the purpose of thermal modification of the wood.

The invention discloses a device for preparing biochar by means of straw. The device for preparing the biochar by means of the straw can greatly improve the biochar preparation efficiency and the automation degree, a rotatable ceramic carbonization disk is adopted for carbonization, not only can accurate control of a carbonization temperature be ensured, but also automatic loading and unloading can be achieved, the labor intensity of a labor is reduced, meanwhile, to-be-carbonized straw blank bars are placed in the ceramic carbonization disk in a radical direction, not only can occupied spacebe reduced, but also the condition that each straw blank can be subjected to carbonization accurately and evenly is ensured, the carbonization effect is excellent, the carbonization performance is ensured, and in a carbonization process, accurate temperature monitoring and control can be conducted, so that the carbonization effect is ensured.

The invention discloses a carbonization treatment method of a wood plate. The carbonization treatment method comprises the following steps of (1) plate cleaning, (2) surface modification treatment, (3) soaking treatment, (4) carbonization treatment, and (5) cooling treatment. According to the carbonization treatment method, the carbonization effect on the wood plate can be effectively improved, the thickness of a surface carbonization layer of the wood plate is effectively increased, the carbonization rate of a surface layer material of the wood plate is also well increased, meanwhile, reasonably-added nanometer silica enhances the density and mechanical property of the surface layer, the machining defective rate is obviously decreased, and good service value is achieved.

The invention relates to a roller steel slag fine aggregate and composite slag powder cemented material, which solves the problem that the existing steel slag can not completely replace cement for producing the cemented material owing to high production cost and can be only made into low-strength (less than C30) concrete. The cemented material is composed of composite slag powder and roller steel slag in the weight ratio of 1:1-4; and the composite slag powder is composed of 8-35wt% of a blended material and 65-92wt% of the slag powder, wherein, the blended material is made by finely grinding at least one of 25-99wt% of plaster, 0-75wt% of silicate cement clinker and 0-5wt% of an additive. The cemented material of the invention can completely replace a cementitious material, and the material has the advantages of high strength grade, simple production process, low production cost and stable product performances, thus being especially applicable to preparing high-strength concrete with good service performances and various engineering with higher flexural strength requirement.

The invention discloses a method for producing energy-saving and environmentally-friendly concrete. The method comprises the following steps of: weighing the following materials in part by weight: 24 to 143 parts of cement, 11 to 38 parts of fly ash, 57 to 95 parts of ceramic granules, 43 to 100 parts of phosphorous slag sand, 39 to 43 parts of mountain sand and 0.3 to 1.7 parts of polycarboxylic acid type high-efficiency water reducing agent; placing the materials into a stirrer, and stirring the mixture to obtain uniformly-mixed powder; and adding 22 to 54 parts of water in the mixture, and stirring to obtain the uniformly-mixed energy-saving and environmentally-friendly concrete. The method has the advantages that: the energy-saving and environmentally-friendly concrete produced by the method has the characteristics of light weight, good insulating performance, low heat loss, environmental protection, no pollution, anti-permeability superior to that of the common concrete, good fire resistance and good durability; and compared with the common concrete, the energy-saving and environmentally-friendly concrete produced by the method has the advantages of: 1, no alkaline corrosion to steel bars; 2, good frost resistance; 3, good contractibility; and 4, good carbonization resistance.

The invention discloses a carbonization reaction device and a carbonization reaction method for nano calcium carbonate production. The carbonization reaction device comprises a Ca(OH)2 slurry feeding tube, a carbonization tower, a stirrer, an annular gas-liquid distributor, a CO2 gas inlet tube and an emulsion dispersing machine. The carbonization reaction method comprises the following steps: (1) feeding Ca(OH)2 slurry into a reflux area of the carbonization tower; (2) continuously feeding the Ca(IH)2 slurry into the emulsion dispersing machine to mix and react with a CO2 gas, and feeding the obtained product into the reaction area of the carbonization tower; (3) continuously circulating the mixed slurry between the carbonization tower and the emulsion dispersing machine for carbonization and emulsion dispersion; (4) adding a dispersing agent, continuously circulating the mixed slurry between the carbonization tower and the emulsion dispersing machine for secondary carbonization and emulsion dispersion; and (5) stopping introduction of CO2 for reaction and operation of the emulsion dispersing machine, thereby obtaining prepared nano calcium carbonate slurry. The carbonization reaction device and the carbonization reaction method for nano calcium carbonate production are rapid in carbonization reaction speed, high efficiency, good effect, small investment and low cost.

The invention discloses a rice husk carbonization device comprising a carbonization furnace; the outer surface of the carbonization furnace is fixedly connected with a heat conducting layer; two sidesof the heat conducting layer are fixedly connected with heating resistance wires; the outer surface of the heat conducting layer is fixedly connected with a heat insulation layer; the top of the carbonization furnace is provided with a motor; the output end of the motor is fixedly connected with a rotating shaft; the outer surface of the rotating shaft is fixedly connected with a stirring paddleand a stirring rod; and one end of the stirring rod is fixedly connected with a first scraper. Due to the adoption of the heating resistance wires, the effects of heating and carbonizing rice husks can be achieved; due to the adoption of the heat conducting layer prepared from graphite, and heat of the heating resistance wires can be rapidly and effectively transferred to the rice husks, so that the carbonization effect of the rice husks is more obvious; due to the adoption of the heat insulation layer, the heat is prevented from being rapidly diffused, so that the aim of saving energy is achieved; and due to the arrangement of the motor, the rotating shaft, the stirring paddle and the stirring rod, the contact among materials can be increased, and the materials can be uniformly stirred toensure that the materials sufficiently contact to react.

The invention relates to the field of removal of pesticide residue, in particular to preparation and a use method of biochar pesticide adsorbing material based on corn stalks. The preparation comprises the following steps: adding wax and corn stalk powder into an oscillator; carrying out oscillation to obtain a fluffy mixture; carbonizing the mixture in a heating furnace to obtain a corn stalk carbide; washing the corn stalk carbide in deionized water; airing the washed corn stalk carbide; adding 0.1 mol/L hydrochloric acid to adjust the pH value while oscillation is carried out; washing to obtain a neutral semi-product; drying the neutral semi-product at 70 to 80 DEG C, so as to obtain the biochar pesticide adsorbing material based on the corn stalks. The invention further discloses the use method of the biochar pesticide adsorbing material. The prepared biochar pesticide adsorbing material is high in quality, adsorption efficiency and yield.