188 results about "Biomass ash" patented technology

The invention provides a special fertilizer for rice. The special fertilizer is prepared from the following raw materials: nitrogen-phosphorus-potassium fertilizer, animal amino acid, nitrohumic acid, organic trace elements, inorganic trace elements, medium elements, biomass ash and lime powder, wherein the ratio of nitrogen fertilizer, phosphorus fertilizer to potassium fertilizer in the nitrogen-phosphorus-potassium fertilizer is (15-20):(8-12):(10-15); and the organic trace elements include sucrose complex copper, sucrose complex iron, sucrose complex zinc, sucrose complex manganese, sucrose complex magnesium, silicon humate fertilizer, sodium humate, magnesium humate, zinc humate and urea iron humate. With high nitrogen content and high-quality humic acid, the special fertilizer for rice provided by the invention improves the soil fertility, promotes quick growth of rice plants, increases the utilization rate of fertilizer, reduces fertilizer loss and obviously increases the rice yield.

The invention provides a preparation method for a silicon dioxide / carbon compound and application to lithium / sodium ion batteries, and belongs to the technical field of composite materials. The technical scheme is shown as follows: firstly, crushing biomass ash into particles with the size less than centimeter level; then performing heat processing at 800-1500 DEG C in an argon, nitrogen, carbon monoxide, hydrogen or water vapor atmosphere for 4-20 h, and cooling to room temperature along with the furnace temperature; and finally cleaning the obtained product in water or a diluted acid, separating, and drying the solid obtained after separation in a vacuum drying box at 80 DEG C, so as to obtain the silicon dioxide / carbon compound. The silicon dioxide / carbon compound is wide in raw material resource, low in cost and free of pollution to environment, and is suitable for industrialized large-scale production, and the obtained silicon dioxide / carbon compound is a lithium / sodium ion battery anode material with excellent performances.

The invention discloses water treatment filler based on modified biomass ash and a preparing method thereof. The preparing method includes the steps that biomass ash is added into a mixed solution according to the ratio of 0.6-1 kg of biomass ash to 1 L of mixed solution, mixed and stirred uniformly, soaked and rinsed to obtain granular water treatment filler based on modified biomass ash; the biomass ash is obtained by combusting biomass fuel, and the mixed solution contains acetic acid and organic matter. Acetic acid and organic matter are adopted to compounding and modifying the biomass ash, the specific area of the biomass ash is increased, and the number of surface functional groups is increased, which is beneficial for provides more attachment points for microorganisms and beneficial to chemisorption of nutrient substances in water; recycling of waste is achieved by adopting biomass power plant waste namely biomass ash as the raw material, the biomass ash is reasonably and effectively used, and water treatment cost is reduced.

The invention relates to a solid waste high-efficiency reburning denitration blended fuel and a method for preparing the same. The blended fuel comprises main fuel of used tire rubber powder, various biomass waste materials, power plant brown coal ash, biomass ash, biomass minerals, and iron oxide (Fe2O3) which are matched at appropriate parameters to be used as reburning fuels. The blended fuel can eliminate as high as more than 80 percent of nitrogen oxides (NOX) generated in the process of coal burning to convert the nitrogen oxides into nitrogen so as to achieve the aim of reducing the emission of nitrogen oxide pollutants, and the solid waste energy sources are recycled effectively and simultaneously.

The invention relates to heat supply equipment, in particular to a biomass ash-free combustion furnace. The biomass ash-free combustion furnace is characterized in that the inner wall, faced by an end port of an air feeding pipe (7), of a hearth (2) and the inner wall, above the air feeding pipe (7), of the hearth (2) are a circular arch-shaped curved surface formed by circular arch-shaped surfaces in a smooth connection mode, a negative-pressure port (8) is formed at the upper side of the air feeding pipe (7) entering the hearth (2), combustion air at the negative-pressure port (8) firstly passes through a wind pressing piece (9), the edge of one side of the wind pressing piece (9) is bent obliquely towards the rear lower direction, and the air feeding pipe (7) outside a furnace body (1) is communicated with a fuel conveying pipe (5). The biomass ash-free combustion furnace has the advantages that fuel enters the hearth along with the wind, rotates and flies up and down, is combusted and is not accumulated easily, the unburnt fuel is sucked to the air feeding pipe and is sprayed out again for combustion, so that the combustion is more sufficient, and almost no ash is reserved. In addition, a heat storage chamber stores a large amount of heat to improve the temperature of the hearth. The air feeding pipe passes through the heat storage chamber, so that the fuel and the combustion air can be preheated, a large amount of combustion air is from the hearth, and the heat of the furnace is accumulated continuously and reaches or approaches the heat of compressed straws and coal. The biomass ash-free combustion furnace can serve as various heat exchanging equipment such as a hot blast heater, a water heater and an oil furnace, substitutes coal-fired furnaces to carry out a heat-supply operation, and has great significance of saving coal, protecting the environment, fully utilizing crop straws, improving the value of the crop straw and increasing the income for farmers.

The invention discloses a vertical biomass hot blast heater. A furnace cavity consists of a separated main combustion chamber for primary combustion, a secondary combustion chamber for secondary combustion, and a settling chamber for settling biomass ash; the upper part of the main combustion chamber is communicated with the upper part of the secondary combustion chamber; the lower part of the secondary combustion chamber is communicated with the lower part of the settling chamber; and high-temperature flue gas generated through the combustion of the main combustion chamber circuitously flows in the furnace cavity. The vertical biomass hot blast heater is designed to be a layer combustion structure with a three-layer combustion chamber structure, a combustion area is divided into the primary combustion chamber and the secondary combustion chamber, the gasification stage and the oxidation stage are separated, and primary air is prevented from being mixed too early. The combustion efficiency of the hot blast heater is improved obviously, the consumption level of fuel can be saved by about 10 percent compared with that of the conventional hot blast heater, and the vertical biomass hot blast heater is suitable for biomass with high moisture content, large dimensional change and high ash content.